Individualized Exercise in Chronic Non-Specific Low Back Pain: A Systematic Review with Meta-Analysis on the Effects of Exercise Alone or in Combination with Psychological Interventions on Pain and Disability

Finding Predictive Factors of Stabilization Exercise Adherence in Randomized Controlled Trials on Low Back Pain: An Individual Data Reanalysis Using Machine Learning Techniques

OBJECTIVE

To identify predictors of adherence in supervised and self-administered exercise interventions for individuals with low back pain.

DESIGN

Cohort study.

SETTING

Rehabilitation.

PARTICIPANTS

This preplanned reanalysis within the Medicine in Spine Exercise Network included 1511 participants with low back pain (57% female, mean age 40.9 years, SD ±14 years).

INTERVENTIONS

Participants underwent an initial 3-week supervised phase of sensorimotor exercises, followed by a 9-week self-administered phase.

MAIN OUTCOME MEASURES

Biological, psychological, and social factors potentially impacting training adherence were evaluated. During the supervised phase, adherence was tracked through a standardized training log. During the self-administered phase, adherence was monitored via a diary, with adherence calculated as the percentage of scheduled versus completed sessions. Adherence was analyzed both as an absolute percentage and as a dichotomized variable (adherent vs nonadherent, with a 70% adherence cut-off). Predictors for adherence were identified using Gradient Boosting Machines and Random Forests (R package caret). Seventy percent of the observations were used for training, whereas 30% were retained as a hold-out test-set.

RESULTS

The average overall adherence was 64% (±31%), with 81% (±28%) adherence during the supervised phase and 58% (±39%) in the self-administered phase. The root mean square error for the test-set ranged from 36.2 (R2=0.18, self-administered phase) to 19.3 (R2=0.47, supervised phase); prediction accuracy for dichotomized models was between 64% and 83%. Predictors of low to intermediate adherence included poorer baseline postural control, decline in exercise levels, and fluctuations in pain intensity (both increases and decreases).

CONCLUSION

Identified predictors could aid in recognizing individuals at higher risk for nonadherence in low back pain exercise therapy settings.

Exercise Prescription for Patients With Persistent Low Back Pain Who Present With Impaired Lateral Abdominal Muscle Activation: A Delphi Survey

BACKGROUND AND PURPOSE

Exercise is commonly prescribed for patients with low back pain (LBP) and maladaptive changes in lateral abdominal muscle (LAM) activation. The literature has considered various exercise programs, but the evidence has not consistently identified exercise parameters associated with superior outcomes. The aim of this study was to determine how physiotherapists should prescribe exercise for patients with persistent LBP who present with maladaptive LAM activation.

METHODS

This was a three round Delphi survey. The international expert panel comprised physiotherapy clinicians with postgraduate orthopaedic manipulative physiotherapy training. Round 1 included open ended questions. Responses were collated and coded using content analysis. In Rounds 2 and 3, participants were provided with the collated responses and rated their agreement with or chose their preferred options regarding exercise prescription for patients with maladaptive LAM activation. Items were defined as meeting consensus when ≥ 70% of participants agreed/disagreed or chose the same option.

RESULTS

Twenty-three physiotherapists consented to participate. Seventeen, 20 and 15 participants completed Rounds 1, 2 and 3, respectively. The exercise prescription suggestions consisted of 46 items reaching consensus across the domains of exercise: goals, considerations, agreement on prescribing exercise for the LAM and other muscles, muscle activation during exercise, the exercise prescription and its focus.

DISCUSSION

This study provides clinically informed recommendations for physiotherapists prescribing exercise for patients with persistent LBP and maladaptive LAM activation. Findings align with motor control exercise approaches outlined in the literature. Participants emphasised the consideration of patient preferences and balancing motor control exercise with moderate/vigorous physical activity.

Back pain in the midwifery profession in northern Poland

Background

Neck pain (NP) and low back pain (LBP) are increasingly significant medical, social, and economic concerns. The midwifery profession, similar to other healthcare occupations, is particularly predisposed to these issues.

Methods

This study aimed to analyze the prevalence of back pain among midwives and evaluate the associated disability levels using the Neck Disability Index (NDI) and the Oswestry Disability Index (ODI). The study group included 208 actively practicing midwives aged 23 to 67 years (mean ± SD: 48.1 ± 10.7 years). Participants completed an anonymous survey comprising a custom-designed questionnaire, the Polish language versions of the NDI and ODI, and the Visual Analog Scale (VAS) for pain intensity.

Results

The analysis revealed a statistically significant correlation between VAS pain intensity and both age (r = 0.2476) and work experience (r = 0.2758), indicating higher pain scores with increasing age and seniority. No significant association was found between BMI and VAS scores (r = 0.0011). Additionally, NDI and ODI scores correlated significantly with age (r = 0.1731; r = 0.3338), BMI (r = 0.1685; r = 0.2718), and work experience (r = 0.1987; r = 0.4074). Higher values for age, BMI, and seniority were associated with increased disability levels.

Conclusions

Neck and low back pain represent prevalent and impactful issues for midwives in Poland, contributing to mild to moderate disability, absenteeism, reliance on pain medication, and limited physical activity. Key contributing factors include age, professional experience, BMI, and low levels of physical activity.

Outpatient interdisciplinary multimodal pain treatment programme for patients with chronic musculoskeletal pain: a longitudinal cohort study

PURPOSE

To describe the outcomes of an interdisciplinary multimodal pain treatment (IMPT) for chronic musculoskeletal pain (CMP) patients up until 12 months post-treatment.

MATERIALS AND METHODS

Data were gathered during routine clinical practice during a 3-year period (2019-2021) at six Dutch rehabilitation centres. Assessments included patient-reported outcome measures for multiple domains including disability, pain and fatigue. Longitudinal data were analysed using repeated-measures models and by quantifying responder rates.

RESULTS

Included were 2309 patients with a mean age of 43.7 (SD 12.9) years, of which 73% female. All outcomes showed significant improvements at each timepoint. At discharge, large effect sizes were found for disability, average and worst pain, fatigue and health-related quality of life. Improvements were largely sustained at 12-months. Relatively large proportions of patients had clinically relevant improvements after treatment (pain-related disability: 60%; average pain: 52%; worst pain: 37.4%; work capacity: 50%; concentration: 50%; fatigue: 46%). Patients who received a treatment extension showed further improvements for all outcome measures, except average pain.

CONCLUSIONS

At group level, all outcomes significantly improved with mainly large effect sizes. The results were mostly sustained. The proportion of patients showing clinically relevant improvements tends to be larger than previously reported for mixed CMP patients.

Are Tailored Interventions to Modifiable Psychosocial Risk Factors Effective in Reducing Pain Intensity and Disability in Low Back Pain? A Systematic Review with Meta-Analysis of Randomized Trials

OBJECTIVE: To determine whether tailored interventions based on patients' psychological profiles enhanced the outcomes of interventions in people with nonspecific low back pain, compared to usual care. DESIGN: Intervention systematic review with meta-analysis. LITERATURE SEARCH: Embase, Cochrane, Medline, Web of Science, CINAHL, and PsycINFO were searched from their inception until November 2, 2023. STUDY SELECTION CRITERIA: We included randomized clinical trials that compared psychological interventions to any alternatives without psychological components in patients with nonspecific low back pain who were stratified based on their psychological risk factors using the cutoff of the questionnaires measuring a psychological construct. DATA SYNTHESIS: The outcomes were pain intensity and disability. The revised Cochrane risk-of-bias tool for randomized trials was used to evaluate the risk of bias. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to judge certainty of evidence. RESULTS: Twenty-nine trials were included, most presenting some concerns for the risk of bias. The certainty of evidence was mostly low, with moderate to substantial heterogeneity. Using psychological stratification, individuals who received a psychological intervention (versus usual care) reported lower pain intensity at the short term (MD, -0.22; 95% confidence interval [CI]: -0.41, -0.02) and midterm (MD, -0.37; 95% CI: -0.57, -0.16). For disability, there was a larger improvement with psychological interventions versus usual care at short-term (SMD, -0.17; 95% CI: -0.32, -0.02), midterm (SMD, -0.16; 95% CI: -0.28, -0.05), and long-term (SMD, -0.17; 95% CI: -0.29, -0.04) follow-ups. CONCLUSIONS: Psychological interventions had a positive impact, although small, on reducing pain intensity and disability in patients with low back pain and psychological risk factors. J Orthop Sports Phys Ther 2025;55(2):1-20. Epub 3 January 2025. doi:10.2519/jospt.2025.12777.

Use of Intervention Mapping to Adapt a Psychologically Informed Physical Therapy Telerehabilitation Intervention for Latino Persons With Chronic Spine Pain

The need for culturally tailored pain care is well-recognized, yet few studies report how existing interventions can be adapted to the needs of culturally and linguistically diverse populations. This report describes a formative mixed-methods approach using intervention mapping-adapt and the expanded framework for reporting adaptations and modifications to evidence-based interventions to adapt and report modifications of an existing physical therapy intervention for Latino persons with chronic spine pain in Federally Qualified Health clinics in the southwestern United States. Mixed methods included literature reviews, patient surveys, an Adaptation Advisory Panel, and sequential case series with semistructured interviews. Six steps of intervention mapping-adapt guided the adaptation process and adaptations were prospectively documented with framework for reporting adaptations and modifications to evidence-based interventions. A needs assessment revealed an absence of culturally tailored physical therapy interventions for Latino persons with chronic spine pain in the United States. An intervention logic model and review of the sociocultural context guided the selection of essential interventions, determinants of behavior change, and outcomes. An existing cognitive behavioral-based physical therapy telerehabilitation intervention was selected for adaptation based on accessibility and strong congruency with the logic model. An Adaptation Advisory Panel planned and evaluated iterative adaptations of the cognitive behavioral-based physical therapy intervention content, activities, delivery, materials, and design. The adapted Goal-Oriented Activity for Latino persons with Spine pain intervention aimed to reduce pain intensity and disability through patient-centered goal setting in physical and cognitive treatment domains. Sequential case series supported feasibility and acceptability of the adapted intervention in the target population. PERSPECTIVE: We describe adaptation and reporting of an evidence-based physical therapy intervention for a culturally and linguistically diverse population. Greater rigor and transparency using tools such as intervention mapping-adapt and framework for reporting adaptations and modifications to evidence-based interventions will accelerate efforts to reduce ethnic and racial disparities in pain rehabilitation.

Psychologically Informed Physical Therapy Management of Chronic Musculoskeletal Pain in Culturally Diverse Populations: An Intervention Logic Model

Culturally and linguistically diverse (CALD) individuals are underrepresented in pain research, including studies of psychologically informed physical therapy (PIPT) for musculoskeletal pain. This perspective describes a conceptual framework for PIPT management of chronic musculoskeletal pain that identifies essential elements that can be culturally tailored to meet the needs of different CALD populations. Essential interventions, determinants of behavior change, and clinical outcomes were identified from studies of existing PIPT interventions for chronic pain. PIPT approaches shared the following essential interventions: 1) cognitive skill training, 2) general aerobic activity, 3) impairment-based therapeutic exercises, and 4) graded functional movement training. An intervention logic model was developed to conceptualize how these interventions might promote active coping behaviors and greater engagement in physical activity, therapeutic exercise, and functional mobility. The model included physical and cognitive-emotional processes that may contribute to behavioral changes that ultimately reduce pain-related disability. To illustrate the cultural tailoring of model constructs, we describe how intervention delivery and assessments were customized for Latino persons with chronic spine pain at a health center located near the United States-Mexico border. A literature review of sociocultural influences on the pain experience of Latino persons was conducted, and essential elements of the model were operationalized to ensure that therapeutic goals, language, content, and processes were compatible with Latino cultural beliefs, values, and behaviors. Future research using the proposed model to adapt and test PIPT interventions for other CALD populations may help identify shared and divergent mechanisms of treatment response for culturally tailored pain management programs. PERSPECTIVE: A novel conceptual framework may help inform the cultural tailoring of PIPT management approaches for chronic musculoskeletal pain by maintaining fidelity to essential treatment elements while also leveraging the unique sociocultural context of different CALD communities to improve health outcomes.

Assessing the Effects of HbA1c Reduction on Alleviating Chronic Nonspecific Low Back Pain in Prediabetic Non-obese Patients: A Non-Randomized Controlled Trial

Background

Pre-diabetes, characterized by elevated glycemic indices, poses a high risk of diabetes development, and is increasingly linked to non-specific low back pain. While mechanisms remain incompletely understood, metabolic, inflammatory, and neurological factors are implicated. Dietary interventions, including low-glycemic and anti-inflammatory diets, alongside weight management, may improve outcomes in this population.

Objectives

In this non-randomized controlled trial, we aim to evaluate the influence of decreasing HbA1c levels on reducing chronic non-specific low back pain in pre-diabetic, non-obese individuals, as well as emphasizing the importance of such a study in supporting the literature.

Methods

A non-randomized controlled single-blind clinical trial was conducted among 82 participants with chronic non-specific low back pain and pre-diabetes at an outpatient clinic in Baghdad from the 30th of January to the 22nd of September. The intervention methods aimed at reducing HbA1c levels to assess the reduction impact on alleviating chronic non-specific low back pain included dietary adjustments, sleep optimization, and correction of vitamins and minerals deficiencies. The follow-up process was conducted individually for each participant, with a monthly assessment over a period of six months.

Results

At 12 weeks a significant decrease in chronic non-specific low back pain severity was observed in patients with lower HbA1C levels yielding a P-value of .021. Similarly, at 24 weeks there was a decline in the number of patients who reported chronic non-specific low back pain, and the association to lower HbA1C levels was significant with a p-value of .005.

Conclusion

This study suggests the presence of a statistically significant association between reduction of HbA1C levels and ensuing improvement in chronic non-specific low back pain symptoms in non-obese prediabetic patients.

Technology supported High Intensity Training in chronic non-specific low back pain (the Techno-HIT trial): study protocol of a randomised controlled trial

Chronic low back pain (CLBP) is one of the most common chronic musculoskeletal disorders worldwide. Guidelines recommend exercise therapy (ET) in CLBP management, but more research is needed to investigate specific ET modalities and their underlying mechanisms. The primary goal of this study is to evaluate the short-term and long-term effectiveness of a time-contingent individualised high-intensity training (HIT) protocol on disability compared with a time-contingent moderate-intensity training (MIT) as used in usual care, in persons with severely disabling CLBP. Additionally, the effectiveness on central effects, the added value of prolonged training at home and technology support, and the cost-effectiveness are evaluated. In this randomised controlled trial, CLBP patients will be randomly divided into three groups of 56 participants. Group 1, 'TechnoHIT', receives HIT with technology-support in the home-phase. Group 2, 'HIT', receives HIT without technology support. Group 3, 'MIT', receives MIT, reflecting training intensity as used in usual care. The primary outcome is patient-reported disability, measured by the Modified Oswestry Disability Index. Secondary outcomes include quantitative sensory testing, psychosocial factors, broad physical fitness, quality of life, cost-effectiveness, adherence and usability of technology. Trial registration number NCT06491121.

Prescribing exercise therapy for the management of musculoskeletal pain: new-graduate physiotherapists' perceptions and perceived training needs

BACKGROUND

Pain management is a challenging area of practice for new-graduate physiotherapists during the transition from student to clinician. The attitudes and beliefs of new-graduate physiotherapists toward the use of exercise therapy as part of the management of musculoskeletal pain remain relatively unknown.

PURPOSE

The aim of the study was to investigate the perspectives of new-graduate physiotherapists toward prescribing exercise therapy in musculoskeletal pain management, and their perceptions of training and support needs in this area of practice.

METHODS

A qualitative study with a general inductive approach was used to investigate new-graduate physiotherapists' perspectives. Semi-structured interviews were conducted with 16 participants. Interview data was subjected to thematic analysis.

RESULTS

Four themes were generated following analysis: 1) Balancing the value of exercise with practical challenges; 2) Communication and education are inherent in exercise; 3) Influence of support and training; and 4) The benefits of direct experience.

CONCLUSION

New-graduate physiotherapists acknowledge the pivotal role of exercise in managing musculoskeletal pain. Direct learning experiences in pre-professional training that develop knowledge and skills required for delivering exercise therapy were highly valued. New-graduates recognize pain management as a skill that requires further development and identify the importance of opportunities for professional development in exercise therapy.

Preoperative decreased physical activity is associated with greater postoperative pain: the mediating role of preoperative sleep disturbance

PURPOSE

Engagement in physical activity (PA) is often associated with better sleep quality and less pain severity among patients diagnosed with breast cancer. However, less research has focused on whether patients' PA prior to breast surgery, including their perceived decrease in PA level, is associated with worse preoperative sleep quality, and subsequently, greater postoperative pain. This longitudinal study investigated whether patients' preoperative PA was associated with their postoperative pain. We also explored whether preoperative sleep disturbance partially mediated the relationship between preoperative PA and postoperative pain.

METHODS

Prior to breast surgery, patients self-reported both their overall level of PA and whether they perceived a decrease in their PA since the diagnosis/onset of treatment for cancer. Patients also completed a measure of preoperative sleep disturbance. Two weeks after surgery, patients completed a measure of postoperative surgical-area pain severity.

RESULTS

Our results showed that preoperatively perceiving a decrease in PA level was significantly associated with greater preoperative sleep disturbance and postoperative pain. A mediation analysis revealed that the association between preoperative decreased PA and postoperative pain was partially mediated by preoperative sleep disturbance. Notably, patients' overall preoperative level of PA was not related to preoperative sleep disturbance or postoperative pain.

CONCLUSION

These findings suggest that maintaining, or even increasing, PA after diagnosis/treatment may be more important than the absolute amount of PA that women engage in during the preoperative period. Potentially, some patients with breast cancer may benefit from a preoperative intervention focused on both maintaining PA and bolstering sleep quality.

Clinically assessed lumbopelvic sensorimotor control tests in low back pain: are they actually valid? A systematic review according to COSMIN guidelines

BACKGROUND

Impairments in lumbopelvic sensorimotor control (SMC) are thought to be one of the underlying mechanisms for the recurrence and persistence of low back pain (LBP). As such, lumbopelvic SMC tests are frequently included in the clinical examination of patients with LBP.

OBJECTIVE

To evaluate convergent and known-groups validity of clinically assessed lumbopelvic SMC tests in patients with LBP according to COSMIN guidelines.

DESIGN

Systematic review METHODS: Five electronic databases were searched until December 2023. Studies examining convergent or known-groups validity of lumbopelvic SMC tests assessed via inspection or palpation in patients with LBP were included. Known-groups validity had to be assessed between patients with LBP and pain-free persons. Two independent researchers appraised risk of bias and quality of evidence (QoE) using the COSMIN Risk of Bias checklist and modified GRADE approach, respectively. Results for known-groups validity were reported separately for single tests and test-clusters.

RESULTS

Twelve studies (946 participants) were included. Three studies investigated convergent validity of three single tests. Regarding known-groups validity, six studies evaluated six single tests and four studies investigated two test-clusters. For only one test, both convergent and known-groups were assessed. The QoE for tests showing sufficient convergent or known-groups validity was (very) low, whereas QoE was moderate for single tests or test-clusters with insufficient known-groups validity.

CONCLUSION

All clinically assessed lumbopelvic SMC tests with sufficient convergent or known-groups validity had (very) low QoE. Therefore, test outcomes should be interpreted cautiously and strong reliance on these outcomes for clinical decision-making can currently not be recommended.

Machine learning-based identification of determinants for rehabilitation success and future healthcare use prevention in patients with high-grade, chronic, nonspecific low back pain: an individual data 7-year follow-up analysis on 154,167 individuals

ABSTRACT

To individually prescribe rehabilitation contents, it is of importance to know and quantify factors for rehabilitation success and the risk for a future healthcare use. The objective of our multivariable prediction model was to determine factors of rehabilitation success and the risk for a future healthcare use in patients with high-grade, chronic low back pain. We included members of the German pension fund who participated from 2012 to 2019 in multimodal medical rehabilitation with physical and psychological treatment strategies because of low back pain (ICD10:M54.5). Candidate prognostic factors for rehabilitation success and for a future healthcare use were identified using Gradient Boosting Machines and Random Forest algorithms in the R-package caret on a 70% training and a 30% test set. We analysed data from 154,167 patients; 8015 with a second medical rehabilitation measure and 5161 who retired because of low back pain within the study period. The root-mean-square errors ranged between 494 (recurrent rehabilitation) and 523 (retirement) days ( R2 = 0.183-0.229), whereas the prediction accuracy ranged between 81.9% for the prediction of the rehabilitation outcome, and 94.8% for the future healthcare use prediction model. Many modifiable prognostic factors (such as duration of the rehabilitation [inverted u-shaped], type of the rehabilitation, and aftercare measure), nonmodifiable prognostic factors (such as sex and age), and disease-specific factors (such as sick leave days before the rehabilitation [linear positive] together with the pain grades) for rehabilitation success were identified. Inpatient medical rehabilitation programmes (3 weeks) may be more effective in preventing a second rehabilitation measure and/or early retirement because of low back pain compared with outpatient rehabilitation programs. Subsequent implementation of additional exercise programmes, cognitive behavioural aftercare treatment, and following scheduled aftercare are likely to be beneficial.

Contexts, behavioural mechanisms and outcomes to optimise therapeutic exercise prescription for persistent low back pain: a realist review

OBJECTIVE

Therapeutic exercises are a core treatment for low back pain (LBP), but it is uncertain how rehabilitative exercise facilitates change in outcomes. Realist reviews explore how the context (C) of certain settings or populations and underlying mechanisms (M) create intended or unintended outcomes (O). Our objective was to explore and understand the behavioural mechanisms by which therapeutic exercise creates change in outcomes of adherence, engagement and clinical outcomes for patients with LBP.

METHODS

This was a realist review reported following the Realist and Meta-narrative Evidence Syntheses: Evolving Standards guidance. We developed initial programme theories, modified with input from a steering group (experts, n=5), stakeholder group (patients and clinicians, n=10) and a scoping search of the published literature (n=37). Subsequently, an information specialist designed and undertook an iterative search strategy, and we refined and tested CMO configurations.

RESULTS

Of 522 initial papers identified, 75 papers were included to modify and test CMO configurations. We found that the patient-clinician therapeutic consultation builds a foundation of trust and was associated with improved adherence, engagement and clinical outcomes, and that individualised exercise prescription increases motivation to adhere to exercise and thus also impacts clinical outcomes. Provision of support such as timely follow-up and supervision can further facilitate motivation and confidence to improve adherence to therapeutic exercises for LBP.

CONCLUSIONS

Engagement in and adherence to therapeutic exercises for LBP, as well as clinical outcomes, may be optimised using mechanisms of trust, motivation and confidence. These CMO configurations provide a deeper understanding of ways to optimise exercise prescription for patients with LBP.

Therapeutic Exercise Parameters, Considerations and Recommendations for the Treatment of Non-Specific Low Back Pain: International DELPHI Study

BACKGROUND

Therapeutic exercise (TE) recommendations for non-specific low back pain (LBP) are meant to support therapy choices for people who suffer from this condition. The aim of this study was to reach an agreement on the definition and use of TE in the care of people with LBP.

METHODS

A Delphi study was carried out with a formal consensus procedure and sufficient scientific evidence, using an established methodology. Four rounds of anonymous questionnaires were administered to create useful suggestions and instructions in terms of the therapeutic activity for patients with LBP, and a group consensus conference.

RESULTS

A consensus was reached on most of the questions after 35 physiotherapists completed the questionnaires. Participants agreed that proper TE requires correct posture, body awareness, breathing, movement control, and instruction. Patients with LBP were advised to participate in supervised sessions twice a week for 30 to 60 min for a period of 3 to 6 months. Participants added that tailored evaluation and exercise prescription, monitoring, and functional integration of exercise, as well as using specific equipment, would benefit patients with LBP.

CONCLUSIONS

TE recommendations for patients with LBP should be dosed and customized based on their personal psychological needs, level of fitness, and kinesiophobia.

Hybrid Exercise Program Enhances Physical Fitness and Reverses Frailty in Older Adults: Insights and Predictions from Machine Learning

PURPOSE

The declining physical condition of the older adults is a pressing issue. Wu Qin Xi exercise, despite being low-intensity, is highly effective among older adults. Inspired by its characteristics, we designed a new exercise program for frail older adults, combining strength, endurance, and Wu Qin Xi. Furthermore, we employed machine learning to predict whether frailty can be reversed in older adults after the intervention.

METHODS

A total of 181 community-dwelling frail older adults aged 65 years or older participated in this single-center, randomized controlled study, with 54.7% (n=99) being female. The study assessed the effectiveness of several exercise modalities in reversing frailty. The Fried's frailty criterion was used to assess the degree of frailty of the subjects. Participants were assigned a three-digit code 001-163 and randomly assigned (1:1:1) by computer to three different groups based on the study participant number: the Wu Qin Xi group (WQX), the strength exercise mixed with endurance exercise training group (SE), and the WQXSE hybrid exercise group incorporated the above two. Body composition and frailty-related physical fitness factors were measured before and after a 24-week intervention. The measurements included Body height, Body mass, Timed Up and Go Test (TUGT), grip strength assessment (GS), 6min walk test (6 min WT), and 10 m maximum walk speed (10 m MWS). Data were analyzed using repeated measures ANOVA to determine group and time interaction effects and machine learning models were used to predict program effectiveness.

RESULTS

A total of 163 participants completed the study, with 53.9% (n=88) of them being female. The two items, 10 m maximum walking speed (10 m MWS) and grip strength, were significantly affected by the interaction of group and time. Compared to the other two groups, the WQXSE group showed the most improvement in the item 10 m MWS. In addition, following 24 weeks of training, 68 (41.7%) of the initially frail older adults had reversed their frailty status. Among them, 19 (36.5%) were in the WQX group, 24 (44.4%) were in the WQXSE group, and 25 (43.9%) were in the SE group. The stacking model exhibited superior performance when compared to other algorithms.

CONCLUSION

A hybrid exercise regimen comprising the Wu Qin Xi routine and exercises focused on both strength and endurance holds the potential to yield greater improvements in the physical fitness of older adults, as well as reducing frailty. Leveraging a stacking model, it is possible to forecast the likelihood of older adults successfully reversing their frailty status following participation in a prevention exercise program.