Effects of balneotherapy and spa therapy on levels of cortisol as a stress biomarker: a systematic review

Healing with thermal mineral-rich waters: the role of spa therapy in post-surgical rehabilitation

With the increasing number of surgeries performed globally, due in part to population aging and the rise of degenerative diseases, post-surgery rehabilitation is often necessary. Rehabilitation programs traditionally include structured physical therapy, pain management, and psychological support. Recent evidence suggests that incorporating complementary approaches, such as spa-based interventions, can further optimize recovery. Spa therapies have demonstrated potential in reducing inflammation, alleviating pain, reducing postoperative edema and promoting motor recovery. Moreover, beyond the physical benefits, the environment of spa facilities can positively influence psychological well-being, reducing anxiety and enhancing adherence to rehabilitation protocols. This paper explores the physiological and clinical benefits of thermal mineral-rich water therapies in post-surgical rehabilitation, proposing their integration as a valuable adjunct to conventional rehabilitation strategies.

Balneotherapy as a Complementary Intervention for Stress and Cortisol Reduction: Findings from a Randomized Controlled Trial

BACKGROUND

In our modern era, stress has become a pervasive challenge, affecting individuals across all ages and backgrounds. Acute or chronic stress and elevated cortisol levels are known to impair neurological function and hinder rehabilitation outcomes. Therefore, effective treatment methods that reduce stress, enhance mental health, and promote overall well-being are urgently needed. The aim of this study was to evaluate the seasonal impact of balneotherapy on distress, as measured by the General Symptoms Distress Scale (GSDS), and well-being, as assessed using the Arizona Integrative Outcomes Scale (AIOS), and the effect of winter balneotherapy on salivary cortisol levels.

METHODS

In 2023, a multicenter, single-blind, parallel-group, randomized controlled trial was carried out across six medical spa centers in Lithuania. Participants with a stress intensity greater than 3 points on the Visual Analogue Scale (VAS) underwent combined natural resource-based therapies over a 1- to 2-week treatment period. Outcomes were assessed using the General Symptom Distress and Arizona Integrative Outcomes scales, along with salivary cortisol measurements after winter intervention.

RESULTS

The results demonstrated a significant reduction in distress intensity by 1-3.5 points (VAS), with winter interventions showing greater efficacy compared to summer. Participants also experienced an increase in well-being by up to 3 points (VAS), improved stress management by up to 1.9 points (VAS), and a reduction in salivary cortisol levels by 0.9 units following winter-based treatments. Some gender differences emerged in specific groups.

CONCLUSIONS

Our study provides robust evidence for the stress-reducing effects of balneotherapy, particularly highlighting the enhanced efficacy of winter interventions. These findings are especially relevant for neurological rehabilitation, where stress reduction and improved autonomic regulation can support neuroplasticity, recovery processes, and overall quality of life. This research offers valuable insights for developing holistic, seasonally optimized strategies to aid stress management and promote neurological health.

Health Resort Treatment Mitigates Neuropsychiatric Symptoms in Long COVID Patients: A Retrospective Study

BACKGROUND/OBJECTIVES

Among the neuropsychiatric symptoms of long COVID, the following may be listed: sleep disturbances, headaches, anxiety, depression, dizziness, numbness, memory loss, and concentration difficulties. Various therapies have been implemented to mitigate these symptoms; however, health resort treatments that utilize a wide range of modalities stimulating multidirectional biological reactions may also be effective. The aim of this study was to assess the severity of neuropsychiatric symptoms in long COVID patients who qualified for health resort treatment, evaluate the effectiveness of health resort treatment in this group of patients, and evaluate the effect of balneological factors in the treatment course.

METHODS

A retrospective analysis of the medical records of 120 people with long COVID (69 women and 51 men) aged 42-79 who underwent health resort treatment in 2021 was performed. People were eligible for treatment at a lowland health resort based on a valid referral from a doctor. The treatment included balneological therapies, physical medicine modalities, exercise programs, health education, and psychological support. Patients assessed the severity of persistent neuropsychiatric symptoms on a 0-10 point scale before and after treatment.

RESULTS

After the treatment, the greatest improvement was noted in sleep disorders (2.47 ± 2.23 points vs. 0.86 ± 1.25 points, p < 0.00001) and dizziness (1.39 ± 1.94 points vs. 0.34 ± 0.76 points, p < 0.00001). The lowest improvement was observed in memory disorders (2.68 ± 2.5 points vs. 1 ± 1.4 points, p < 0.00001).

CONCLUSIONS

Patients with long COVID who qualified for health resort treatment reported mild neuropsychiatric symptoms. Health resort treatment mitigates neuropsychiatric symptoms, as it is a complex approach. Treatment that includes balneological factors improves symptoms to a greater extent. This method of treatment should be integrated into the standard treatment for long COVID.

Emerging Evidence on Balneotherapy and Thermal Interventions in Post-COVID-19 Syndrome: A Systematic Review

BACKGROUND

Post-COVID-19 syndrome affects 10-60% of SARS-CoV-2 survivors. While conventional treatments show limited efficacy, emerging evidence suggests the potential benefits of balneotherapy in managing persistent symptoms. We aimed to systematically evaluate the efficacy and safety of balneotherapy and thermal treatment interventions in treating post-COVID-19 syndrome.

METHODS

We conducted a systematic review following PRISMA guidelines, searching major databases through 31 January 2024. Eligible studies included randomized controlled trials, observational studies, and pilot studies investigating thermal spa treatments for adult post-COVID-19 patients.

RESULTS

Analysis of six eligible studies (n = 617) demonstrated significant therapeutic benefits. The largest cohort (n = 159) showed 47% reduction in fatigue and 48% reduction in muscle pain (p < 0.01). Comprehensive spa therapy achieved complete symptom resolution in one-third of the participants. Combined spa-ubiquinol therapy improved metabolic function (p < 0.05). All interventions demonstrated favorable safety profiles.

CONCLUSIONS

Preliminary evidence suggests balneotherapy effectively ameliorates multiple post-COVID-19 symptoms, particularly fatigue, muscle pain, and exercise intolerance. While safety profiles appear favorable, larger randomized controlled trials with standardized protocols are needed to establish definitive therapeutic recommendations.

Advances in modern Balneology: new evidence-based indications from recent studies

Balneotherapy (BT) is a therapeutic approach that utilizes various forms of water-based treatments to promote health and well-being. BT possesses a rich historical heritage and has garnered recognition from esteemed institutions such as the World Health Organization (WHO). Recent scientific research enables the identification of relevant diseases (obesity, metabolic diseases, sleep disorders, mental health conditions, Long-COVID-19, and cancer rehabilitation) that could potentially benefit from balneo-therapeutic treatments, thereby presenting new avenues of opportunity for SPA ("Salus per Aquam") medicine. These conditions exemplify the potential benefits of BT for ailments beyond the traditional scope of treatment associated with BT (most commonly osteoarthritis, fibromyalgia, rheumatic back pain, and chronic inflammatory respiratory or skin disorders). Overall, the current scientific evidence suggests that BT holds significant potential for enhancing both individual wellbeing and public health. However, further high-quality clinical trials are essential to corroborate these preliminary findings and to provide critical insights into the therapeutic benefits of BT, paving the way for its broader integration into healthcare practices and public health initiatives.

Balneotherapy and cortisol levels: an updated systematic review and meta-analysis

The main objective of this review is to examine the impact of balneotherapy on serum and salivary cortisol concentrations. A systematic search was conducted in PubMed, Scopus, Web of Science, PEDro, and Google Scholar. The databases were screened from inception up until April 2024. After screening the scientific literature, 845 articles were retrieved and 17 studies, involving a total of 765 participants, were eventually included in the review. Among them, four were randomized controlled trials, five were non-randomized studies, and eight were pre-post studies with no control group. The evidence gathered in this review indicates a significant short-term reduction in cortisol levels in healthy individuals undergoing balneotherapy, particularly those experiencing high levels of stress. Conversely, in patients with rheumatic conditions (especially if elderly), increases in cortisol levels induced by balneotherapy can act as beneficial hormetic stress, reducing inflammatory mediators and improving pain and functional quality of life. The meta-analysis shows an overall trend of reduction in stress hormone levels, more pronounced in the intervention group undergoing mud-balneotherapy compared to the control group, a finding that, however, does not reach statistical significance (g=-0.11 [95% CI: -0.30; 0.08]; p > 0.05). Current scientific evidence demonstrates that balneotherapy has a positive impact on the regulation of cortisol levels. The regulation of the hypothalamic-pituitary-adrenal axis and the beneficial effects observed on health parameters and quality of life allow mud-balneotherapy to be classified as eustressful stimuli useful in preventing stress-related pathologies in healthy individuals and in alleviating symptoms in patients with chronic conditions. Future research on the topic is advised.

Spa Therapy Efficacy in Mental Health and Sleep Quality Disorders in Patients with a History of COVID-19: A Comparative Study

The COVID-19 pandemic has left behind mental health issues like anxiety, depression, and sleep disorders among survivors. This study assessed the efficacy of spa therapy in enhancing psychological well-being and sleep quality in individuals with chronic arthro-rheumatic, respiratory, and otorhinolaryngological diseases, including COVID-19 recoverees. Our prospective observational study included 144 Caucasian subjects from three Italian spas who underwent a 2-week spa therapy cycle, involving balneotherapy and/or inhalation treatments. Symptoms were assessed with the Visual Analogue Scale (VAS), psychological well-being with Depression Anxiety Stress Scales-21 items (DASS-21), and sleep quality with the Insomnia Severity Index (ISI). Significant reductions in VAS scores for arthro-rheumatic, respiratory, and otorhinolaryngological symptoms were observed after spa therapy, as well as for DASS-21 and ISI scores for sleep quality, transitioning to less severe insomnia categories. Females had more pronounced improvements in DASS-21 scores and sleep quality. Subjects with and without prior SARS-CoV-2 infection experienced significant reductions in anxiety, depression, and stress, with more pronounced improvements in those without prior infection. COVID-19 survivors also showed significant ISI score improvements. Spa therapy is a promising complementary treatment for improving mental health and sleep quality in chronic disease patients, including COVID-19 survivors.

Novel Insight into the Association between Balneotherapy and Functional State and Health Perception in Chronic Low Back Pain: A Cross-Sectional Study

Background: Epidemiological data indicate that low back pain (LBP) affected 619 million people globally in 2020, representing a significant health and economic burden. Additionally, chronic LBP (cLBP) strongly impairs quality of life and leads to disability and premature retirement, thus emphasizing the need for providing deeper insight into the factors that affect treatment outcomes and for offering thorough guidance for the assessment and management of this condition. Taking into consideration the rising prevalence of cLBP and the knowledge gap referring to the overall health benefits of balneotherapy (BT), the aim of this study was to assess the effects of BT on functional status, quality of life, and psychological symptoms in patients with cLBP. Methods: Among 220 patients from the database, two groups were retrospectively identified: patients receiving conventional pharmacological therapy (CT) and patients receiving BT. The effectiveness of the treatment was assessed through a visual analog scale for pain intensity, EuroQol (EQ-5D), and the Work Ability Index Questionnaire. In order to provide deeper insight into the quality of life and also factors associated with functional status and mental health affected by BT, we also used the Short Form Health Survey Questionnaire and the Center of Epidemiologic Studies Depression Scale. Results: Both age and treatment protocol were found to have a significant impact on all observed parameters, i.e., older patients and those receiving CT tended to report lower overall health and physical functioning. On the other hand, BT was associated with better functionality and disability perception status. Conclusions: Understanding the association between individual perceptions of functionality and its emotional and social elements provides a basis for providing comprehensive guidelines and recommendations for cLBP management.

Uncovering the link between inflammatory rheumatic diseases and male reproductive health: a perspective on male infertility and sexual dysfunction

Inflammatory rheumatic diseases (IRDs) refer to a range of persistent disorders that have a major influence on several physiological systems. Although there is much evidence connecting IRDs to sexual dysfunction and fertility problems, research specifically focusing on male infertility in relation to these diseases is sparse. This review addresses the complicated connection between IRDs and male infertility, emphasising the physiological, psychological, and pharmacological aspects that influence reproductive health outcomes in men with rheumatic conditions. We explore the effects of IRDs and their treatments on many facets of male reproductive well-being, encompassing sexual functionality, semen characteristics, and hormonal balance. Additionally, we present a comprehensive analysis of the present knowledge on the impact of several categories of anti-rheumatic drugs on male reproductive function. Although there is an increasing awareness of the need of addressing reproductive concerns in individuals IRDs, there is a noticeable lack of research especially dedicated to male infertility. Moving forward, more comprehensive research is needed to determine the prevalence, risk factors, and mechanisms driving reproductive difficulties in males with IRDs. We can better assist the reproductive health requirements of male IRD patients by expanding our understanding of male infertility in the setting of rheumatic disorders and implementing holistic methods to care.

Revitalizing your sleep: the impact of daytime physical activity and balneotherapy during a spa stay

Background

In modern society, achieving high-quality sleep is increasingly challenging. We conducted a study to explore the potential benefits of daytime physical activity and balneotherapy, including mud application and thermal-water bathing, on sleep quality.

Methods

To assess daytime physical activity and sleep parameters, we actigraphically monitored 127 healthy participants (34.6% male, average age 64.61 ± 0.89 years) during a one-week stay at a spa resort, where they received mud application and thermal-water bathings.

Results

Participants were divided into three groups based on the timing of mud application. Those receiving mud application before 8:30 a.m. tended to have shorter sleep durations compared to those with later application, especially if it occurred before 7:45 a.m. However, mud application did not significantly affect sleep quality. Three-way ANCOVA revealed a significant effect of daytime physical activity on delta Sleep Efficiency, but post-hoc tests were insignificant. Furthermore, analyzing the duration of daily thermal-water bathings, individuals bathing for over 75 min per day experienced a noteworthy improvement in sleep quality, particularly in terms of delta Sleep Efficiency (2.15 ± 0.9% vs. -0.34 ± 0.31%, p = 0.007).

Conclusion

Our findings suggest that extended thermal-water bathing may enhance objective aspects of sleep quality. Since balneotherapy is mainly prescribed for individuals with musculoskeletal pathologies or psychological disorders, these findings may encourage doctors to recommend bathing in thermal water also to healthy subjects. Future researchers need to investigate the role of daytime physical activity in depth.

The effect of underwater massage during hot water immersion on acute cardiovascular and mood responses

PURPOSE

There is emerging evidence that demonstrates the health benefits of hot water immersion including improvements to cardiovascular health and reductions in stress and anxiety. Many commercially available hot tubs offer underwater massage systems which purport to enhance many benefits of hot water immersion, however, these claims have yet to be studied.

METHODS

Twenty participants (4 females) completed three, 30-min sessions of hot-water immersion (beginning at 39 °C) in a crossover randomized design: with air massage (Air Jet), water massage (Hydro Jet) or no massage (Control). Cardiovascular responses comprising; heart rate, blood pressure and superficial femoral artery blood flow and shear rate were measured. State trait anxiety, basic affect, and salivary cortisol were recorded before and after each trial. Data were analysed using a mixed effects model.

RESULTS

Post immersion, heart rate increased (Δ31bpm, P < 0.001, d = 1.38), mean arterial blood pressure decreased (Δ16 mmHg, P < 0.001, d = -0.66), with no difference between conditions. Blood flow and mean shear rate increased following immersion (P < 0.001, Δ362 ml/min, d = 1.20 and Δ108 s-1, d = 1.00), but these increases were blunted in the Air Jet condition (P < 0.001,Δ171 ml/min, d = 0.43 and Δ52 s-1, d = 0.52). Anxiety and salivary cortisol were reduced (P = 0.003, d = -0.20, P = 0.014, d = -0.11), but did not vary between conditions. Enjoyment did not vary between conditions.

CONCLUSION

These data demonstrate positive acute responses to hot water immersion on markers of cardiovascular function, anxiety, and stress. There was no additional benefit of water-based massage, while air-based massage blunted some positive vascular responses due to lower heat conservation of the water.

Evaluation of the benefits of neutral bicarbonate ionized water baths in an open-label, randomized, crossover trial

We previously demonstrated that neutral bicarbonate ionized water (NBIW) bathing enhances blood flow by bicarbonate ions and described the underlying mechanism. However, additional clinical investigation was warranted to investigate the efficacy of NBIW bathing. Hence, we performed a randomized, open-label, crossover trial to examine the effects of NBIW bathing on mental stress, sleep, and immune function. Participants who regularly felt stressed were randomly assigned to NBIW or regular bathing for 4 weeks. Mental stress was assessed with the Brief Job Stress Questionnaire (BJSQ) and the Profile of Mood States Second Edition; sleep quality, with the Pittsburgh Sleep Quality Index Japanese version (PSQI-J) and actigraphy; and immune function, with laboratory tests. PSQI-J scores and actigraphy sleep latency and bed out latency improved significantly more with NBIW bathing than with regular bathing (p < 0.05). Furthermore, NBIW bathing reduced both stress-induced fluctuations in CD4+ and CD8+ T cell counts and fluctuations in the naive to memory T cell ratio and neutrophil phagocytosis, indicating improved immune function. These findings suggest that daily NBIW bathing could improve mental stress, sleep quality, and immune function and bring about positive health effects in those who experience stress in their daily lives.

The Potential Role of Spa Therapy in Managing Frailty in Rheumatic Patients: A Scoping Review

Frailty is not limited to the elderly, as patients with rheumatic diseases can also experience this condition. The present scoping review aimed to investigate the possibility of using the health resort setting as an alternative location for managing rheumatic patients with frailty. The research resulted in finding several in vitro, in vivo, and clinical studies, resulting in evidence supporting the effectiveness of spa treatments in reducing pain, improving function, and managing comorbidity in rheumatic diseases. Additionally, spa treatments were demonstrated to modulate the MAPK/ERK pathway and the NF-kB pathway's activation and to reduce proinflammatory molecules' secretion in rheumatic diseases, thus suggesting their potential effective role in the regulation of inflammaging in frailty. Moreover, the health resort setting may offer potential resources to reduce risk factors, such as drug consumption, inactivity, and disease severity, and may serve as a setting for developing prevention protocols for frailty. Future research should explore innovative approaches, such as exercise training and early diagnostics, for the overall management of frailty in rheumatic patients in the spa setting.

Comparative analysis of balneotherapy in European public health systems: Spain, France, Italy, and Portugal

Balneotherapy comprises the use of natural mineral waters for health and/or well-being purposes. When balneotherapy is offered by the public health system, some countries with Latin-based languages call it social thermalism. The aim of this study is to compare balneotherapy in health systems of Spain, France, Italy, and Portugal. The study involves a qualitative systematic review of the literature using the systematic search flow method. Twenty-two documents, from 2000 to 2022, were included and its findings were described in seven categories: the first outlines the historical characterization of social thermalism in the systems analyzed and the others outline the components of the health systems: coverage/access, health financing, workforce, inputs and techniques, organization and regulation, and network provision of services. The models of insurance and social security that cover part of the thermal treatment are highlighted. Doctors with competence in medical hydrology constitute the majority of the workforce. Similarities regarding inputs and techniques are observed, with variation in the number of days of the balneotherapy treatment cycle. In the regulation of services, the Ministry of Health of each country is prominent. The provision of services is mainly performed in specialized care in accredited balneotherapy establishments. Despite the limitations of the method, the comparisons made may serve to support public policies for balneotherapy.

Short-time effects of spa rehabilitation on pain, mood and quality of life among patients with degenerative or post-surgery musculoskeletal disorders

Clinical trials have demonstrated traditional spa therapy effects in musculoskeletal disorders (MSDs). This is the first observational study in Italy aimed at evaluating in real-life the short-time effects of spa rehabilitation on pain, mood and quality of life (QoL) among degenerative or post-surgery MSDs patients. Through the involvement of six Italian spa facilities, 160 patients were enrolled; data from 123 patients were finally analysed. Seventy-nine patients (64.3%) accessed the spa for degenerative MSDs, while 44 (35.8%) had a post-surgical condition. All the patients included in the study underwent 12 sessions of water-based exercise (joint exercises, muscle strengthening, gait training, proprioceptive and balance techniques) conducted in thermal or in warm water pools, six sessions per week, for a period of 2 weeks from March 2019 up to October 2019. A group of 45 patients (36.6%) also received traditional thermal therapies, including 12 mud therapy sessions and 12 thermal baths, six times each week, for 2 weeks. Evaluation before and after the treatment included the Numerical Rating Scale (NRS), the Short Form Health Survey (SF-12) and the EuroQol-5D (EQ-5D). The analysis of the scores reported in the questionnaires after the treatment showed a significant improvement in all the scores evaluated. Comparison between patients that performed water-based exercise protocols alone (group A) and patients that in addition to water exercise performed traditional thermal interventions (group B) showed no statistically significant differences in NRSp, NRSa, NRSm, SF-12 PCS, SF-12 MCS and EQ-5D variations; only NRSa value reduction was lower in group B. Sulphate water was found to be associated with a lower reduction of all the scores considered, when compared to the other water types. Patients with degenerative or post-surgery MSDs showed favourable effects on pain, mood and QoL after water exercise training alone or in combination with traditional thermal therapy. Our research provides the first proof that spa rehabilitation can be in real-life conditions an appropriate alternative strategy for post-orthopaedic surgical outcomes recovery. In the future, these results will need to be further investigated.

Hot spring bathing accelerates wound healing and enhances heat retention effect in guinea pigs

This study aimed to demonstrate the effects of hot springs on wound healing and heat retention by performing comparative experiments with tap water. The hot spring water used in this study was from an alkaline hot spring that was rich in sodium and chloride ions and exhibited high reducibility. Guinea pigs were divided into a hot spring bathing group and a tap water bathing group, and a bathing test was conducted for eight consecutive days. A comparison of the plasma amino acid composition between the two groups after the bathing test revealed differences in the concentrations of several amino acids associated with wound healing. Image analysis demonstrated that wounds made on the abdominal skin of guinea pigs were significantly contracted by hot spring bathing compared to that by tap water bathing, and histopathological findings showed that wound healing was accelerated. In the thermography test, changes in body surface temperature after bathing were investigated in both groups. The heat retention effect was not observed in the tap water bathing group after bathing, whereas it was enhanced in the hot spring bathing group until 30 min after bathing. In conclusion, this study demonstrated that hot spring bathing accelerates wound healing and has a more significant heat retention effect than tap water bathing.

Can spa rehabilitative interventions play a role for patients suffering from neurodegenerative disorders at the early stages? A scoping review

The global burden of neurodegenerative disorders is significantly increasing as life expectancy rises but currently there is no cure for these conditions. An extensive search on MEDLINE (PubMed) and PEDro databases was conducted selecting clinical trials, Randomized Controlled Trials, and longitudinal studies published in the last 20 years in order to highlight what evidence there is for a role of spa rehabilitative interventions for patients with neurodegenerative diseases, in terms of motor function, symptoms, and quality of life (QoL) improvement and cost-effectiveness. A total of 225 publications were analyzed. Only three manuscripts were selected for review because they matched the inclusion criteria. These studies demonstrated statistically significant differences in the outcomes evaluated among patients affected by Parkinson's disease after thermal rehabilitative treatments: motor function, balance, QoL, and psychological well-being statistically improved. In addition, rehabilitation in the spa setting seemed to be cost-effective for these patients. However, further studies are needed to define the role of spa rehabilitative interventions for these patients as the literature is still limited.

Salivary cortisol levels and stress in adults with profound intellectual and multiple disabilities participating in the Structured Water Dance Intervention: a randomised controlled crossover trial

The Structured Water Dance Intervention (SWAN) is a dance-oriented aquatic group activity directed to give opportunities for the joy of movement, relaxation, and reduced stress. This study aimed to evaluate the effects of SWAN on salivary cortisol and stress in adults with profound intellectual and multiple disabilities (PIMD). A total of 34 adults with PIMD at four habilitation centres in Sweden completed the SWAN intervention. The intervention was administered for 40 min once a week during a 12-week period. Saliva cortisol was collected in the morning and evening at baseline one week before the intervention, thrice during the intervention period, and one week after the intervention. Moreover, in connection with the SWAN sessions, the participants' level of stress was also assessed by the accompanying assistants. The results showed that salivary cortisol and participants stress decreased significantly, directly after the SWAN sessions compared with measures directly before sessions. The study demonstrates that adults with PIMD have diurnal salivary cortisol patterns consistent with those observed in adults without disability and that the SWAN reduces salivary cortisol levels and stress in people with PIMD; this justifies that SWAN could be considered in the choice of interventions to reduce stress in adults with PIMD.Trial registration: This study is registered 09/04/2019 on ClinicalTrials.gov (ID: NCT03908801).

Effects of complex spa therapy in patients with osteoarthritis of the spine receiving treatments in health resorts in south-eastern Poland

Management of patients with degenerative diseases commonly comprises health-resort based treatment programs, including spa therapies, balneotherapy as well as terrain therapy making use of microclimate factors. The study was designed to assess short- and long-term effects of spa therapy administered to patients with osteoarthritis of the spine who received treatment in health resorts located in Poland. The study involved 102 patients receiving treatment in health resorts, a group of subjects receiving outpatient treatment (100 patients) and a group receiving no therapy (100 patients). The assessment survey included: Pain VAS and Laitinen, LISAT-9 and HAQ-20 questionnaires. The assessments were carried out three times: at the start of the therapy program, as well as one month and six months after the end of the program. Short-term effects showed statistically significant improvement in all the outcome measures in spa group and outpatient treatment group. The long-term effects showed statistically significant improvement in all the outcome measures in spa group only. In conclusion spa therapy reduces pain, improves functional efficiency and increases the level of life satisfaction in patients with osteoarthritis of the spine. Its effects are sustained for at least six months. Spa therapy is more effective long-term, than outpatient treatment.

Trial registration: The study was registered at Clinical Trials: NCT03974308. First registration: 04/06/2019.

Clinical Impact of Balneotherapy and Therapeutic Exercise in Rheumatic Diseases: A Lexical Analysis and Scoping Review

To review the evidence regarding the clinical effect of spa therapy for rheumatic diseases, with particular attention given to association protocols between balneotherapy and rehabilitation interventions, and to support the literature research and studies’ selection with lexical analysis. Methods: A lexical analysis was performed considering a list of words representing diseases and outcome measures linked to the theme studied in our review. Then, two independent researchers conducted a literature search on PubMed using the string employed for lexical analysis, including Randomized Controlled Trials regarding spa therapy’s clinical effects on patients affected by rheumatic diseases published in the last 30 years. After the exclusion of works that did not meet the eligibility criteria, 14 studies were included in the final scoping review. Results: Spa therapy has shown a favourable effect on pain, function and quality of life in patients with Osteoarthritis, Fibromyalgia and Rheumatoid Arthritis. Different treatment modalities and types of water have demonstrated beneficial long-term clinical improvement. Furthermore, the association between thermal therapy and rehabilitation treatments has shown better clinical outcomes, probably due to the synergistic effect between the peculiar properties of the thermal waters and the therapeutic exercise program, if conducted in the same context. Conclusions: The combination of balneotherapy and rehabilitative interventions seems to be effective in ameliorating several outcomes in patients with rheumatic diseases. However, due to the wide variety of methodologies and interventions employed, these findings need to be further investigated. The lexical analysis should represent an auxiliary support for an extensive evaluation of scientific literature.

Evaluation of short-term effects of three passive aquatic interventions on chronic non-specific low back pain: Study protocol for a randomized cross-over clinical trial

Background

Low back pain (LBP) is among the most common physical ailments and its chronic manifestation is a leading cause for disability worldwide. LBP is not attributable to a known diagnosis in 85% of the cases and therefore called chronic non-specific LBP (cnLBP). Passive immersion in warm water is commonly claimed to reduce muscular tension and pain, but not yet sufficiently investigated with regard to cnLBP. The current study compares three passive aquatic interventions regarding their effects on cnLBP: floating (resting in a supine immersed position on flotation devices), WATSU (a passive hands-on treatment, in which a practitioner stands in warm water, gently moving and massaging the client), and a Spa session.

Methods

In this randomized cross-over clinical trial, all 24 adult participants with cnLBP will undergo the three interventions in balanced order with a washout-period of at least two weeks in between. Assessments will take place at baseline and follow-up of study and immediately before and after each intervention. Assessments cover the primary outcome self-reported current pain (Visual Analog Scale, range: 0–100 mm), other self-report questionnaires (addressing, e.g., personality traits or -states), and physiological parameters (e.g., measurement of spinal range of motion).

Discussion

The study adds estimates of intervention-specific effect-sizes of widespread passive aquatic interventions to cnLBP. The study also points to potential underlying pain-reducing mechanisms.

Trial registration

The protocol was approved by the Ethics Committee of the Canton Bern (ProjectID: 2018–00461). Trial registration is intended at ClinicalTrials.gov.

[Speciality of restoring the psychophysiological parameters of laboratory rats with the help of balneological procedures during the periods of equinox]

Currently methods development for restoring physiological functions and increasing the adaptive capabilities of the body after prolonged stress exposure of various genesis is an urgent problem in the field of balneology and physiotherapy. It is known that the adaptive potential of the organism is not the same in different seasons of the year. In this regard, it becomes necessary to take into account the seasonality factor when carrying out recreational activities.

PURPOSE OF THE STUDY

To perform a comparative study of balneotherapeutic procedures effectiveness in the form of water and antler baths in relation to the restoration of the psychophysiological parameters of laboratory rats after a consistent stressful effect of light desynchronosis and physical activity to a state of complete fatigue during autumn and spring equinoxes.

MATERIAL AND METHODS

The experiment was carried out during the periods of the spring and autumn equinoxes on 160 male Wistar rats weighing 220-250 g. In each season, the animals were divided into 8 groups of 10 individuals. Two groups were in natural lighting conditions. Animals of the 1st group (intact) were not exposed to experimental influences; rats of the 2nd group were exposed to physical activity in the form of a swimming test until complete fatigue for 5 days in a row in the morning; animals of groups 3-8 were exposed to stress loads in the form of 10-day light desynchronosis (light or dark deprivation) followed by physical activity. In the 4-th, 5-th, 7-th and 8-th groups, post-experimental post-stress recovery programs were carried out using water baths (groups 4 and 7) and baths with drug «Pantovanna» (groups 5 and 8). After the completion of exposures, the animals were tested in the «open field» according to the standard method. The level of corticosterone in the blood serum was determined by ELISA.

RESULTS

It was found that in laboratory rats sensitivity to stressful influences - light desynchronosis followed by physical activity to the point of fatigue, as well as active post-stress recovery were determined by the nature of desynchronosis and the season of the year. The stress load was accompanied by a phase of exhaustion during the spring equinox and by a phase of anxiety during the autumn equinox. In the spring, antler baths as a procedure for active post-stress recovery were ineffective; in autumn, they had a normalizing effect on the level of corticosterone and behavior only after dark deprivation.

CONCLUSION

The conducted experiment indicates the need to take into account the season of the year and the direction of the transmeridian flight to sanatorium-and-spa treatment with balneotherapy procedures. Using the example of equinoxes under experimental conditions on laboratory rats, it has been shown that balneological procedures will more effectively perform rehabilitative functions when the light phase of the day expands as a result of such a shift, but not the dark one.

Post COVID-19 persistent fatigue: a proposal for rehabilitative interventions in the spa setting

With this letter to Editor, we aim at offering our viewpoint on the potential use of the spa resources to contribute to the treatment of persistent COVID-19 sequelae. In particular, our argumentations focus on the comprehensive management of fatigue persisting after the resolution of the acute infection. This sequela seems to be the most frequent disabling outcome, leading to a delay in social reintegration and return to working life.We suggest that spa facilities including multidisciplinary interventions and trained staffs could be an appropriate setting for providing rehabilitative protocols to treat chronic fatigue in post COVID-19 subjects. Spa treatments may improve the physical symptoms of chronic fatigue and modulate the immune imbalance, reducing persisting inflammation. Moreover, in the spa setting, specific respiratory rehabilitation and neuropsychological interventions could be provided. The rehabilitative protocol could also properly address comorbidities.In conclusion, respecting the hygiene and preventive measures, the spa setting could represent the appropriate environment to take care of post-COVID chronic fatigue, offering adequate and multidisciplinary rehabilitation protocols. Further, prospective trials on this topic are needed to fully evaluate the positive impact of a comprehensive rehabilitative treatment in the spa environment for subjects with post-COVID-19 fatigue.

The effectiveness of balneotherapy and thermal aquatic exercise in postoperative persistent lumbar pain syndrome

In our study, we aimed to investigate the effectiveness of balneotherapy and aquatic exercises in patients with postoperative chronic low back pain. Forty-three patients over the age of 18 who had been operated on for herniated disc and who had at least 6 months of back and/or leg pain were included in the study. The patients have been distributed randomly into 2 groups prior to the treatment. The program comprising aquatic exercises distributed into 5 days a week for 2 weeks and 20 min (min) a day, in a 33 °C spa pool was applied to the first group. After the first group's treatment was completed, a program consisting of walking out of the pool and strengthening and stretching exercises for the hip, abdominal, back, and waist muscles was distributed into 5 days a week for 2 weeks for a total duration of 20 min per day was applied to both groups. The patients subjected to the study were evaluated before treatment, after treatment (2nd week), and at 1st and 6th months after treatment. The Visual Analogue Scale, Modified Schober Test, Finger-to-Floor Distance, Sorensen Test, Progressive Iso-inertial Lifting Evaluation, Rolland Morris Disability Index, Leeds Disability Scale, Beck Depression Inventory, Nottingham Health Profile, and Short Form 36 Health Survey parameters were evaluated. We detected a significant improvement in all parameters except for the Sorensen test, in both groups. We observed that the changes in VAS, Sorensen, NHP, and SF 36 tests in the aquatic exercise group were significantly better than those in the non-aquatic exercise group.

Serum-Derived Neuronal Exosomal microRNAs as Stress-Related Biomarkers in an Atopic Dermatitis Model

Chronic allergic inflammatory skin disease-atopic dermatitis (AD)-is characterized by eczema, pruritus, xeroderma, and lichenification. Psychological stress is one cause of this disease; however, psychological stress will also result from the presence of AD symptoms. Previous studies have shown that psychological stress triggers neuroinflammation in the brain, where microRNAs (miRNAs) in the neuronal exosomes (nEVs) were analyzed to identify the composition of the miRNAs in the nEVs and how they were altered by AD. In this study, the AD model was induced by treatment with 2,4-dinitrochlorobenzene (DNCB). The expression patterns of neuroinflammation markers, such as brain-derived neurotrophic factor, cyclooxygenase-2, and glial fibrillary acidic protein, were subsequently evaluated over time. Among these groups, there was a significant difference in DNCB 14 days expression compared with the control; therefore, nEVs were isolated from serum and next-generation sequencing was performed. The results demonstrate that 9 miRNAs were upregulated and 16 were downregulated in the DNCB 14 days compared with the control. Previous studies have shown that some of these miRNAs are associated with stress and stress-induced depression, which suggests that the miRNAs in nEVs may also be stress-related biomarkers.

[Dental care in health resort institutions]

Over the past decades, a small yet convincing evidence base has accumulated that demonstrates the effectiveness of dental care for patients in health-resort (HR) settings. In addition to a positive local effect, complex HR care increases nonspecific resistance and promotes desensitization.

OBJECTIVE OF THE REVIEW

Addressing the HR rehabilitation in patients with various maxillofacial diseases for further consideration of the possibility of the increased use of HR care in dental practice.

MATERIAL AND METHODS

Russian and English-language publications were analyzed without specifying the search timeframe. The search keywords were the following: «health-resort care», «balneotherapy», «peloid therapy», «physiotherapy», «magnet therapy», «laser therapy» in combination with «dental diseases», «maxillofacial diseases», «periodontal diseases», «temporomandibular joint diseases», «postoperative rehabilitation» «balneotherapy», «mud therapy», «peloid therapy», «spa therapy», «physiotherapy». A total of 21 articles were analyzed, including 10 related to periodontal disease, 5 to temporomandibular joint pathology, and 6 to rehabilitation in the postoperative period. Seventeen original studies (3855 patients) were selected, including 47.62% with evidence level C, due to lack of information on comparison group or randomization.

RESULTS AND DISCUSSION

Available data from clinical studies suggest the effectiveness of natural and physiotherapeutic factors in the medical rehabilitation of patients with various dental diseases. Further randomized clinical trials and the development of clinical guidelines for various techniques in dental diseases are warranted.

Clinical efficacy of medical hydrology: an umbrella review

The aim of this research was to summarize available scientific evidence on the efficacy of medical hydrology for the management of any health condition. The search was conducted on 26th March 2021, in the following databases: Medline (via PubMed), EMBASE, Web of Science, Cochrane Library, and Google Scholar. All relevant literature reviews investigating the clinical efficacy of interventions characterized by the use of natural mineral waters and muds were included. The quality of studies was assessed with the "AMSTAR 2" tool. After article screening, 49 reviews were included in this work. Overall, retrieved scientific evidence suggests that spa therapy is beneficial for patients affected by some specific musculoskeletal conditions, with improvements potentially lasting up to 9 months. Moreover, balneotherapy can be an integrative support for the management of chronic venous insufficiency and some inflammatory skin diseases like psoriasis. The role of spa therapy in rehabilitation appears relevant as well. More limited, although interesting evidence exists for inhalation and hydropinic therapies. Globally, retrieved evidence suggests that, besides individual wellbeing, medical hydrology can be useful for public health. In particular, higher-quality studies seem to support the integrative use of spa-related interventions for conditions like osteoarthritis, fibromyalgia, low back pain of rheumatic origin, and chronic venous insufficiency. However, the body of evidence has some limitations and further clinical trials should be designed for each relevant application to consolidate and expand acquired knowledge.

Neurocosmetics in Skincare—The Fascinating World of Skin–Brain Connection: A Review to Explore Ingredients, Commercial Products for Skin Aging, and Cosmetic Regulation

The “modern” cosmetology industry is focusing on research devoted to discovering novel neurocosmetic functional ingredients that could improve the interactions between the skin and the nervous system. Many cosmetic companies have started to formulate neurocosmetic products that exhibit their activity on the cutaneous nervous system by affecting the skin’s neuromediators through different mechanisms of action. This review aims to clarify the definition of neurocosmetics, and to describe the features of some functional ingredients and products available on the market, with a look at the regulatory aspect. The attention is devoted to neurocosmetic ingredients for combating skin stress, explaining the stress pathways, which are also correlated with skin aging. “Neuro-relaxing” anti-aging ingredients derived from plant extracts and neurocosmetic strategies to combat inflammatory responses related to skin stress are presented. Afterwards, the molecular basis of sensitive skin and the suitable neurocosmetic ingredients to improve this problem are discussed. With the aim of presenting the major application of Botox-like ingredients as the first neurocosmetics on the market, skin aging is also introduced, and its theory is presented. To confirm the efficacy of the cosmetic products on the market, the concept of cosmetic claims is discussed.

The efficacy of balneotherapy, mud therapy and spa therapy in patients with osteoarthritis: an overview of reviews

Osteoarthritis is a degenerative disease considered a leading cause of functional disability. Its treatment is based on a combination of pharmacological and non-pharmacological interventions, but the role of these latter is still debated. This overview of systematic reviews aimed at evaluating the short-term efficacy of different thermal modalities in patients with osteoarthritis. We searched PubMed, Scopus, CINHAL, Web of Science, ProQuest and the Cochrane Database of Systematic Reviews from inception until October 2020, with no language restrictions. We selected the following outcomes a priori: pain, stiffness and quality of life. Seventeen systematic reviews containing 27 unique relevant studies were included. The quality of the reviews ranged from low to critically low. Substantial variations in terms of interventions studied, comparison groups, population, outcomes and follow-up between the included SRs were found. From a re-analysis of primary data, emerged that balneotherapy was effective in reducing pain and improving stiffness and quality of life, mud therapy significantly reduced pain and stiffness, and spa therapy showed pain relief. However, the evidence supporting the efficacy of different thermal modalities could be seriously flawed due to methodological quality and sample size, to the presence of important treatment variations, and to the high level of heterogeneity and the absence of a double-blind design. There is some encouraging evidence that deserves clinicians' consideration, suggesting that thermal modalities are effective on a short-term basis for treating patients with AO.

Hydrotherapy Intervention for Patients Following Total Knee Arthroplasty: A Systematic Review

Background Hydrotherapy or aquatic exercise has long been known as a source of postoperative rehabilitation proposed in routine clinical practice. However, the effect on clinical outcome as well as the optimal timing of hydrotherapy in patients undergoing total knee arthroplasty (TKA) remain unclear. The purpose of this review was to assess the influence of aquatic physiotherapy on clinical outcomes and evaluate the role of the timing of aquatic-therapy for clinical outcomes after undergoing TKA.

Methods An extensive literature search was performed in Embase, PubMed, and the Cochrane Library for randomized controlled trials (RCTs) that evaluated the impact of hydrotherapy on patients after TKA. The methodological quality of the trials was evaluated based on the Cochrane Risk of Bias Tool.

Results All available studies on postoperative hydrotherapy after TKA were included. The primary endpoint was to evaluate the effect of hydrotherapy on clinical outcomes. The secondary outcome was to explore the role of the timing of aquatic therapy for clinical outcomes following TKA.

Conclusion Although definitive conclusions could not be reached due to insufficient data, most studies indicated that participants benefited from aquatic-therapy in muscle strength, rather than gait speed, after TKA. Currently available data demonstrated that early postoperative hydrotherapy possessed a greater potential to improve clinical outcomes in main clinical scores and quality-adjusted life years (QALYs).

Technological opportunities for sensing of the health effects of weather and climate change: a state-of-the-art-review

Sensing and measuring meteorological and physiological parameters of humans, animals, and plants are necessary to understand the complex interactions that occur between atmospheric processes and the health of the living organisms. Advanced sensing technologies have provided both meteorological and biological data across increasingly vast spatial, spectral, temporal, and thematic scales. Information and communication technologies have reduced barriers to data dissemination, enabling the circulation of information across different jurisdictions and disciplines. Due to the advancement and rapid dissemination of these technologies, a review of the opportunities for sensing the health effects of weather and climate change is necessary. This paper provides such an overview by focusing on existing and emerging technologies and their opportunities and challenges for studying the health effects of weather and climate change on humans, animals, and plants.

Balneotherapy with a psychoeducation program for the promotion of a balanced care in family caregivers of older adults

This study aimed to analyze the efficacy of an intervention program for informal caregivers of elderly dependent that combined balneotherapy with group psychoeducation (BT-PE) based on the balanced care model. The BT-PE intervention (N = 124) was compared with a comparison group only exposed to balneotherapy (BT) (N = 76). The two modalities included both primary and secondary informal caregivers. A three-way mixed ANOVA was conducted to determine the effects of two between-subjects´ factors (intervention group and caregiver type) and one within-subjects´ factor (time) on burden, depression, anxiety, maladjustment and care satisfaction. Results showed less burden and more care satisfaction in both primary and secondary caregivers participating in the BT-PE program after the interventions. Primary caregivers also showed lower levels of maladjustment in the experimental group at post-intervention. Although depressive symptoms and anxiety decreased significantly in both intervention groups, BT-PE did not show lower scores compared with the application of sole BT. The relevance of caregivers´ psychoeducation on the balanced care model and its combination with balneotherapy is highlighted.

Application of Salivary Biomarkers in the Diagnosis of Fibromyalgia

Fibromyalgia (FM) is a highly prevalent syndrome that impairs the quality of life of the patients; however, its diagnosis is complex and mainly centered on pain symptoms. The study of salivary biomarkers has proven highly useful for the diagnosis and prognosis of numerous diseases. The objective of this review was to gather published data on the utilization of salivary biomarkers to facilitate and complement the diagnosis of FM. Salivary biomarkers used in FM diagnosis include cortisol; calgranulin; and the enzymes α-amylase, transaldolase, and phosphoglycerate mutase. Increased serum levels of C-reactive protein, cytokines interleukin 1-β, interleukin 6, interleukin 8, interleukin 10, interleukin 17, tumor necrosis factor α, and various chemokines may serve as salivary biomarkers, given observations of their increased serum levels in patients with FM. Further research is warranted to study in depth the role and performance of biomarkers currently used in FM diagnosis/prognosis and to identify novel salivary biomarkers for this disease.

Respiratory rehabilitation for post-COVID19 patients in spa centers: first steps from theory to practice

With this correspondence, we would like to briefly outline a practical perspective about a possible integrative and effective management in spa settings of COVID-19 long-term sequelae, with a keen focus on post-infective lung damage and fibrosis, which is expected to become epidemiologically relevant in the general population. In order to outline a standard/baseline model of care, we think that it can be useful to refer to already existing rehabilitative plans with a long-standing tradition in Italy, such as those ones prescribed for work-related respiratory diseases like pneumoconiosis, in which long-term outcomes share some clinical characteristics with post-infective lung fibrosis. Such programs include diagnostic procedures (spirometry, ECG, blood tests) and treatments like respiratory physio-kinesiotherapy and postural drainage of the lungs; mechanical pulmonary ventilation for rehabilitative purposes, with or without drugs, along with standard medical and, when required, oxygen therapy; inhalation therapies with mineral waters; physical activity and psychological support. In conclusion, we believe that spa facilities can be a proper setting for respiratory rehabilitation and that already existing programs employed in occupational medicine can be a good starting point to plan rehabilitative strategies for post-COVID-19 patients. In particular, health spa centers can be useful not only to offer tailored programs of physical rehabilitation but also to provide patients with a psychologically supportive and health-promoting environment. Further studies on the topic are advised to properly assess and quantify with adequate outcome measurements the beneficial effect of a spa-based rehabilitative program in post-COVID-19 patients.

Sulfurous-arsenical-ferruginous balneotherapy for osteoarthritis of the hand: results from a retrospective observational study

Balneotherapy (BT) is a complementary therapy widely used in several rheumatic conditions, however, the evidence in hand osteoarthritis (HOA) is still scarce. The aim of this preliminary study is to retrospectively evaluate the symptomatic effects of a cycle of mud-bath therapy in HOA patients. Two hundred twelve outpatients with primary bilateral HOA treated with 12 daily local mud packs and generalized thermal baths with a sulfurous-arsenical-ferruginous mineral water added to usual treatment were included in the study. Each patient was examined at baseline and at the end of thermal therapy (2 weeks). Primary outcome measures were global spontaneous hand pain on a Visual Analogue Scale (VAS) and the Functional Index for Hand Osteoarthritis (FIHOA) score; secondary outcomes were handgrip strength, duration of morning stiffness, Health Assessment Questionnaire (HAQ), Short Form Health Survey (SF-12), tolerability and patients' and physicians' global impression of treatment efficacy and tolerability. Our results demonstrated that the efficacy of mud-bath therapy was significant in all the assessed parameters at the end of therapy, except for the physical component score of SF-12. The thermal treatment was well tolerated. The patient's and the physician's global assessments showed a high level of satisfaction in terms of efficacy and safety. In conclusion, our results may suggest a short-term effectiveness of mud-bath therapy in controlling pain and improving functionality in HOA patients, supporting the role of this treatment as a complementary strategy in the management of HOA; however, further randomized controlled trials with a long-term follow-up are needed.

The effect of balneotherapy on body mass index, adipokine levels, sleep disturbances, and quality of life of women with morbid obesity

To investigate the effect of balneotherapy on body mass index, adipokine levels, sleep disturbances, and quality of life in women with morbid obesity. Fifty-four women with morbid obesity were included in the study. The body mass indexes (BMI) and waist/hip ratios (WHR) of the women were calculated. Subcutaneous fat thickness was measured using a *skinfold meter, and the percentage of adipose tissue was calculated. The *Pittsburgh Sleep Quality Index (PSQI) was used to assess sleep quality, and the Nottingham Health Profile (NHP) was used to assess quality of life. In addition to routine biochemical tests, leptin, adipokine, visfatin from blood, and cortisol from saliva samples were studied. Participants were given 15 sessions of balneotherapy for 20 min each. After treatment, the laboratory and clinical parameters of the participants were *reevaluated. There was no statistically significant difference of BMI, WHR, and percentage of adipose tissue between before and after treatment measurements (p ˃ 0.05).There was a statistically significant improvement in PSQI and NSP scores (p ˂ 0.001). The levels of blood glucose, leptin, and visfatin were significantly decreased, and adiponectin was significantly increased after treatment (p = 0.047, p ˂ 0.001, p ˂ 0.001, and p ˂ 0.001, respectively).There was no statistically significant changes in salivary cortisol levels (p = 0.848). Patients with diabetes showed a statistically significant decrease in glucose levels after treatment (p = 0.017).There was a statistically significant decrease in low-density lipoprotein cholesterol levels in patients with dyslipidemia compared with pre-treatment (p = 0.018). Balneotherapy improves sleep and quality of life of women with morbid obesity. After balneotherapy, glucose, leptin, adiponectin, and visfatin levels may change positively.

Structured Water Dance Intervention (SWAN) for adults with profound intellectual and multiple disabilities: study protocol

Background

People with profound intellectual and multiple disabilities (PIMD) have a combination of severe intellectual disability, extensive physical impairment, sensory impairments and medical health problems. There is, however, a lack of evidence-based physical and health-promoting interventions for people with PIMD.

Objective

Structured Water Dance Intervention (SWAN) is a new method developed to fill this gap. This paper reports a protocol for an intervention study which aims to evaluate SWAN with regard to its effects on physiological, psychological and social health-related variables as well as its cost-effectiveness and potential for implementation in health care.

Methods

The evaluation of SWAN is performed in a multi-center randomized crossover study. Data is collected through cortisol measurement, physiological assessments, proxy ratings, video observations and interviews.

Conclusions

This is the first attempt to evaluate rigorously an innovative intervention for people with PIMD, a group that is rarely considered for health promotion interventions. This study will provide important information about the efficacy, cost-effectiveness and potential to implement SWAN in health care.

Protocols and self-checking plans for the safety of post-COVID-19 balneotherapy

During the COVID-19 pandemics, balneotherapic establishments were closed in Italy like in the rest of Europe. The Italian Foundation for Research in balneotherapy (FoRST) was asked to prepare a safety protocol to be proposed to the National Health Authorities to allow the establishments to restart their activity when possible, under safe conditions (the so-called Phase-2). The group of experts proposed the following hygienic and sanitary protocols of risk management for the initial reopening of the balneology settings in Italy. The plan aims to define the operating procedures to be implemented at the balneology establishments for the beginning of Phase-2 and to keep them constantly updated in the different periods that will characterize Phase-2 in relation to the trends of the disease. To this end the procedures, defined on the basis of the scientific state-of-the-art available today, will be updated and revised from time to time whenever further scientific evidence and directives from the Health Authorities make it necessary and/or useful.

Microbiological Hygiene Quality of Thermal Muds: A Pilot Study in Pelotherapy Facilities of the Euganean Thermal District (NE Italy)

Evaluation of hygienic aspects of thermal mud microbiology is still neglected. This study evaluates the microbiological hygiene quality of thermal muds, providing a comprehensive assessment of the whole mud cultivation chain. Maturing mud, peloid and used mud samples were collected twice in a year from 30 SPAs of the Euganean Thermal District, NE Italy. Samples were processed with an ad hoc laboratory method. The following indicator parameters were assessed: Total Count at 22, 37 and 55 °C; total coliforms; Escherichia coli; enterococci; Staphylococcus aureus; Pseudomonas aeruginosa; sulfite-reducing clostridia; dermatophytes. Statistical significance of differences between the two sampling campaigns and correlation between temperature and indicator parameters were evaluated. One-hundred eighty samples were analyzed. Widespread presence of environmental species was found, as well as hints of possible microorganism transfer from the patient's skin to the mud. Proper setting of thermal water temperature resulted critical, in terms of hygienic quality. Although optimal maturation should be granted (thermal water at 30-42 °C), a pasteurization step at 60-65 °C is strongly recommended to sanitize peloids before pelotherapy. Facilities re-using thermal muds should also implement a regeneration step at ≥65 °C. Core evaluation of thermal mud hygienic quality could encompass the following guidelines: absence (i.e., 0 colony forming units (CFU)/g) of E. coli, P. aeruginosa, S. aureus and dermatophytes.

The effects of balneotherapy on human immune gunction: should baths and mud applications have a role during covid-19 pandemic?

Recent evidences show that balneotherapy applications can affect the immune system, which has an important role in the containment of Covid-19 infection outcomes. It is interesting to consider if balneotherapy, through medical water baths and mud applications can be a suitable treatment in order to influence human immunity in people who have not acquired the infection and in subjects discharged from hospital after Covid-19 recovery. In particular, balneotherapy seems to improve the immune response efficacy, with an effect mediated by mental stress reduction and a direct action, consisting in the modulation of the abnormal inflammation and the enhancement of the immune system, through changes in both cell-mediated and humoral immunity. The main changes demonstrated on human immunity, after balneotherapy, are linked to an increase in the levels and the activity of cells involved in the immune response such as neutrophils and monocytes and to a reduction of the pro-inflammatory cytokines produced by a dysregulated inflammation. Even if further in vitro researches and clinical trials on this topic should be conducted, at present Spa centres, if hygienically controlled according to WHO and national recommendations, may be considered safe places to attend and useful settings to counteract the outcomes of residual unbalanced immunity after Covid-19 infection.

Rehabilitation in an Italian thermal setting: a new therapeutic strategy for patients with musculoskeletal disability-the results of an Italian survey

Traditionally, in the past, patients with musculoskeletal diseases visit the spa centers (Salus per aquam) for traditional treatments, including mud therapy, or for holiday. Spas have begun to offer, as the only means of treatment, rehabilitation therapy for patients with musculoskeletal disabilities alone or in association with other traditional thermal therapies. The purpose of this paper is to describe the results of a recent survey on Italian thermal centers conducted by a section of "Rehabilitation in the Thermal Environment" of the Italian Society of Physical Medicine and Rehabilitation. The study investigated the current diffusion, type, and overall quality of rehabilitation treatments performed at the Italian spas. The survey requested information from 174 centers, but only 132 responded by returning the completed questionnaire. Eighty-nine percent of the centers offered rehabilitation therapy for orthopedic-rheumatological diseases, including post-operative conditions (after hip or knee replacement), 37% offered rehabilitation therapy for neurological diseases and 10% rehabilitation for lymph-vascular conditions. Seventy-one percent employed a multidisciplinary team (which included a physiatrist, a physiotherapist, and other figures such as a hydrologist or rheumatologist). The rehabilitative approach generally included therapeutic exercises (land or aquatic therapies), instrumental physical therapies (ultrasounds, electrotherapy, LASER-therapy, and others), and, less frequently, health education and preventive measures. The survey did not investigate respiratory or nasopharyngeal diseases. In conclusion, the results of this survey suggest that rehabilitation, performed in the thermal environment, could be a new opportunity to treat many musculoskeletal disabilities.

Does aquatic thermal therapy improve quality of life after total hip replacement? A retrospective preliminary pilot study

Hydrokinesiotherapy has antalgic and muscle relaxant properties, as well as anti-edema and anti-inflammatory effects. Currently, the management of persons with total hip replacement (THR) consists of multiple pharmacologic and non-pharmacologic therapies, which include therapeutic exercise, physical therapies, and education. Our hypothesis is that kinesiotherapy in thermal water would improve functional outcome. The aim of the study was to assess thermal hydrokinesiotherapy efficacy on pain, mood, and quality of life. We enrolled 11 participants (mean age of 70.55 ± 14 years) with total hip replacement (THR) after early hospital discharge at a residential rehabilitation facility. All participants underwent a standardized combined land-based and hydrokinesiotherapy rehabilitation program for 2 consecutive weeks. Clinical data were collected at beginning and end of rehabilitation; pain, anxiety, and quality of life scores were collected at admission, discharge, 3 and 6 months from surgery. Functional outcome scores improved and were maintained at 6-month follow-up. These preliminary data demonstrate that thermal hydrokinesiotherapy may positively influence functional recovery in orthopedic post-surgical patients. Further randomized controlled trials are mandatory to consolidate this finding.

Efficacy of aquatic therapy for neck pain: a systematic review

This study systematically reviews the current state of aquatic treatment of neck pain and assesses the scientific evidence of its benefits. The databases PubMed, Scopus, Web of Science and PEDro were searched for relevant reports published from January 1, 2008, to November 7, 2017, using the keywords "neck pain" in addition to "balneotherapy", "spa treatment", "spa", "thalassotherapy", "hydrotherapy", "aquatic therapy" or "aquatic". Inclusion criteria were full-text articles published in journals included in Journal Citation Reports in English and Spanish describing human studies. Case studies, letters to the editor and meeting presentations or other contributions were excluded. Of 367 articles identified, only 13 fulfilled the inclusion criteria: 5 randomized trials, 1 single blind controlled study, 2 pilot studies, 2 observational retrospective studies, 1 prospective study, 1 clinical study and 1 not specified. Participants were 658 subjects with chronic neck pain. Main symptoms and signs treated were neck pain, disability, cervical disc herniation and compromised quality of life. Evidence that aquatic treatment improves quality of life in affected individuals was good in four studies, fair in eight and weak in one. Treatment of neck pain using different waters and techniques reduced pain and disability, and improved functional capacity, quality of life, joint mobility, balance, relaxation and mood.

Head-out immersion in natural thermal mineral water for the management of hypertension: a review of randomized controlled trials

Hypertension is a major public health problem in the world, and the management of hypertension has always been a research of interest. Balneotherapy, with its recreational aspect, is more acceptable than medication intake and lifestyle change for the management of hypertension. The aim of this review was to summarize the current available data on the clinical effects of head-out immersion in natural thermal mineral water (HINTMW) as the most common method of balneotherapy used in the management of hypertension. We screened the PubMed, EMBASE, Cochrane Library, China Science and Technology Journal, China National Knowledge Infrastructure, WANFANG, and China Biology Medicine disc databases and selected 12 randomized controlled trials involving a total of 1122 participants. Among 12 trials, HINTMW was taken as the only intervention in only one study, HINTMW was taken in addition to basic antihypertensive drugs in three studies, and HINTMW was taken in combination with advice to follow nonpharmacological methods in one study involving participants who partly used antihypertensive drugs, while HINTMW combined with other interventions, such as natural convalescent factor therapy, psychotherapy, exercises, nutrition therapy, and integrated care, was taken in addition to basic antihypertensive drugs in the other 7 studies. Our results showed that natural thermal mineral water immersion alone or natural thermal mineral water immersion as an adjuvant therapy to medication or natural thermal mineral water immersion combined with other interventions had no adverse effects on hypertensive patients, and most even had positive effects. However, more high-quality evidences on therapeutic effectiveness of natural thermal mineral water immersion on hypertension are needed from additional randomized controlled trials with high methodological quality.

Effects of a short residential thermal spa program to prevent work-related stress/burnout on stress biomarkers: the ThermStress proof of concept study

Objective

Work-related stress is a public health issue. Stress has multiple physical and psychological consequences, the most serious of which are increased mortality and cardiovascular morbidity. The ThermStress protocol was designed to offer a short residential thermal spa program for work-related stress prevention that is compatible with a professional context.

Methods

Participants will be 56 male and female workers aged 18 years or above. All participants will undergo a 6-day residential spa program comprising psychological intervention, physical activity, thermal spa treatment, health education, eating disorder therapy and a follow-up. On six occasions, participants’ heart rate variability, cardiac remodelling and function, electrodermal activity, blood markers, anthropometry and body composition, psychology and quality of life will be measured using questionnaires and bone parameters.

Results

This study protocol reports the planned and ongoing research for this intervention.

Discussion

The ThermStress protocol has been approved by an institutional ethics committee (ANSM: 2016 A02082 49). It is expected that this proof of concept study will highlight the effect of a short-term specific residential thermal spa program on the prevention of occupational burnout and work-related stress. The findings will be disseminated at several research conferences and in published articles in peer-reviewed journals.

Trial Registration: ClinicalTrials.gov ( NCT 03536624, 24/05/2018)

Effects of forest bathing (shinrin-yoku) on levels of cortisol as a stress biomarker: a systematic review and meta-analysis

Forest bathing is a traditional practice characterized by visiting a forest and breathing its air. This review aims to investigate the effects of forest bathing on levels of salivary or serum cortisol as a stress biomarker in order to understand whether forest bathing can reduce stress. Medline/PubMed, Embase, Scopus, Web of Science, Cochrane Library, and Google Scholar were systematically searched for relevant articles. The quality of included trials was assessed following the criteria of the NIH dedicated tools. Afterwards, a qualitative and quantitative synthesis of retrieved evidence was performed. A total of 971 articles were screened; 22 of them were included in the systematic review and 8 in the meta-analysis. In all but two included studies, cortisol levels were significantly lower after intervention in forest groups if compared with control/comparison groups, or a significant pre-post reduction of cortisol levels was reported in the forest groups. The main results of the meta-analysis showed that salivary cortisol levels were significantly lower in the forest groups compared with the urban groups both before (MD = - 0.08 μg/dl [95% CI - 0.11 to - 0.05 μg/dl]; p < 0.01; I² = 46%) and after intervention (MD = - 0.05 μg/dl [95% CI - 0.06 to - 0.04 μg/dl]; p < 0.01; I² = 88%). Overall, forest bathing can significantly influence cortisol levels on a short term in such a way as to reduce stress, and anticipated placebo effects can play an important role in it. Further research is advised because of the limited available data.