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dos Santos IK, Cobucci RN, de Medeiros JA, de Assis GG, de Medeiros RCDSC, Knackfuss MI, Cabral BGDAT, dos Santos RVT, Dantas PMS. Home-Based Indoor Physical Activity Programs for Community-Dwelling Older Adults: A Systematic Review. Sports Health 2024; 16:377-382. [PMID: 37329120 PMCID: PMC11025514 DOI: 10.1177/19417381231175665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023] Open
Abstract
CONTEXT Home-based exercise programs are a good strategy to promote benefits to health for people who cannot visit gyms, clinics, or have limited time for physical activity outside. OBJECTIVE To synthesize the effect of home-based indoor physical activity on psychosocial outcomes and mobility in community-dwelling older adults. DATA SOURCES A comprehensive search was conducted in the MEDLINE, PubMed, Embase, SPORTDiscus, Cochrane Library, Scopus, and Google Scholar databases. STUDY SELECTION A total of 11 studies (13 publications) were included involving a total of 1004 older adults. STUDY DESIGN A systematic review of randomized controlled trials was conducted using the aforementioned 7 databases. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. LEVEL OF EVIDENCE Level 2. DATA EXTRACTION Two authors independently selected studies, extracted data, and determined the risk of bias and evidence level using the Grading quality of evidence and strength of recommendations (GRADE) guidelines. We conducted a synthesis without meta-analysis (SWiM) to assess the outcome. RESULTS There is moderately certain evidence that home-based exercise programs reduced the fear of falling. Psychosocial (mental health and quality of life) and mobility outcomes may improve after participating in the intervention inside the home. CONCLUSION The review found very low to certain evidence that home-based exercises programs improved psychosocial outcomes (mental health and quality of life) and walking speed (mobility). Moderately certain evidence suggests that home-based exercises improved fear of falling. PROTOCOL REGISTER NUMBER CRD42020182008.
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Affiliation(s)
- Isis Kelly dos Santos
- Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Ricardo Ney Cobucci
- Graduate Program of Biotechnology and Medical School, Universidade Potiguar (UnP), Natal, Rio Grande do Norte, Brazil
| | | | - Gilmara Gomes de Assis
- Department of Molecular Biology, Gdansk University of Physical Education and Sports, Gdansk, Poland, and Department of Applied Physiology, Mossakowski Medical Research Centre, Polish Academy of Science, Poland
| | | | - Maria Irany Knackfuss
- Department of Physical Activity, State University of Rio Grande do Norte, Natal, Brazil
| | | | | | - Paulo Moreira Silva Dantas
- Graduate Program in Health Sciences and Graduate Program in Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
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Branquinho L, de França E, Teixeira JE, Titton A, Leite de Barros LF, Campos P, Marinho DA, Forte P, Caperuto EC, Thomatieli dos Santos RV, Ferraz R. Identifying the ideal weekly training load for in-game performance in an elite Brazilian soccer team. Front Physiol 2024; 15:1341791. [PMID: 38505708 PMCID: PMC10948442 DOI: 10.3389/fphys.2024.1341791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024] Open
Abstract
Introduction: The purpose of this study was to investigate the ideal training load to be applied during periods of fixture congestion to ensure an adequate dose-response effect for performance maintenance. Methods: Match performance data and corresponding pre-match training load sessions (both N = 498 match performance cases and training-block session cases) were collected (with the catapult system, VECTOR7) from 36 male professional soccer players (23.5 ± 5.2 years; 178 ± 4 cm; 75.5 ± 6.0 kg) belonging to the Brazilian First Division team during the 2022 season. The following data were collected in match and training sessions: jump, acceleration, deceleration, and change of direction (COD); running distance producing metabolic power at different intensities (>20, >20-35, >35-45, >45-55, and >55 W kg-1), total distance (m), relative distance (m/min), running distance at different speeds (>20, >25, and >30 km/h), number of sprints (running >25 km/h), and maximum speed (km/h). Mixed linear model (MLM), decision tree regression (DTR), and cluster K means model (SPSS v.26) approach were performed to identify the most critical variables (and their respective load) in the training sessions that could explain the athlete's match performance. Results: MLM and DTR regression show that training load significantly affects game performance in a specific way. According to the present data, an interference phenomenon can occur when a high load of two different skills (running in a straight line vs COD, deceleration, and jumping) is applied in the same training block of the week. The cluster approach, followed by a chi-squared test, identified significant associations between training load and athlete match performance in a dose-dependent manner. Discussion: The high load values described here have a beneficial effect on match performance, despite the interference between stimuli discussed above. We present a positive training load from a congested season from the Brazilian First Division team. The study suggests that an interference effect occurs when high physical training loads are applied to different specific physical skills throughout the season.
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Affiliation(s)
- Luís Branquinho
- Agrarian School of Elvas, Polytechnic Institute of Portalegre, Portalegre, Portugal
- CI-ISCE–ISCE Douro, Penafiel, Portugal
- Research Center in Sports Sciences, Health Sciences and Human Development, Covilhã, Portugal
| | - Elias de França
- Department of Biosciences, Federal University of São Paulo, São Paulo, Brazil
| | - José E. Teixeira
- Research Center in Sports Sciences, Health Sciences and Human Development, Covilhã, Portugal
- Sport Sciences and Physical Education Department, Polytechnic Institute of Bragança, Bragança, Portugal
- Sport Department, Polytechnic Institute of Guarda, Guarda, Portugal
| | | | | | | | - Daniel A. Marinho
- Research Center in Sports Sciences, Health Sciences and Human Development, Covilhã, Portugal
- University of Beira Interior, Covilhã, Portugal
| | - Pedro Forte
- CI-ISCE–ISCE Douro, Penafiel, Portugal
- Research Center in Sports Sciences, Health Sciences and Human Development, Covilhã, Portugal
- Sport Sciences and Physical Education Department, Polytechnic Institute of Bragança, Bragança, Portugal
- Sport Department, Higher Institute of Educational Sciences of the Douro, Penafiel, Portugal
- LiveWell—Research Centre for Active Living and Wellbeing, Polytechnic Institute of Bragança, Bragança, Portugal
| | | | | | - Ricardo Ferraz
- Research Center in Sports Sciences, Health Sciences and Human Development, Covilhã, Portugal
- University of Beira Interior, Covilhã, Portugal
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dos Santos Quaresma MVL, Marques CG, Magalhães ACO, Cirillo L, Ciudi RB, Oliveira LS, dos Santos RVT, Nakamoto FP. Prevalence of dietary supplement consumption among CrossFit practitioners. Nutrire 2023; 48:9. [PMID: 38625281 PMCID: PMC9924833 DOI: 10.1186/s41110-023-00193-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 02/02/2023] [Indexed: 02/15/2023]
Abstract
Purpose We aimed to verify the prevalence of dietary supplements among CrossFit practitioners (CFPs), considering gender and training status. Still, we aimed to determine the type, reasons, and associated factors of dietary supplement utilization among CFPs. Methods This is a cross-sectional, exploratory, and descriptive study with the snowball sampling method. Data were collected through online questionnaires using the Google Forms® tool. We included CFPs aged 18-64 years, from Aug 1, 2020, to Sept 31, 2020. The questionnaire contained questions to assess the prevalence, type, and reasons for supplement use; also, we assessed information about sociodemographic variables and the prevalence of the main chronic morbidities. To analyze aspects of eating behavior and sleep-related parameters, we applied the three-factor eating questionnaire (TFEQ)-R21 and the Pittsburgh Sleep Quality Index questionnaire (PSQI), respectively. Results We assessed one hundred twelve (n = 112; 57 men; 55 women) CFPs (28.9 ± 7.64 years old; body mass index (BMI), 25.5 ± 4.83 kg/m2). Eighty-seven (50 men; 37 women; 28.2 ± 6.66 years old; BMI, 25.4 ± 4.55 kg/m2) reported using dietary supplements. Whey protein was the most used supplement (n = 70), followed by creatine (n = 54). Cognitive restraint (a dimension of eating behavior) score was higher in supplement users than in non-users (51.7 ± 18.6 vs. 42.6 ± 20.5; p = 0.040). Sleep-related parameters did not differ between supplement users and non-users. The most associated factors to supplement use were sex (being man; OR, 7.99; p = 0.007), sleep quality (poor; OR, 5.27; p = 0.045), CrossFit level (as prescribed (RX); OR, 4.51; p = 0.031), and cognitive restraint (OR, 1.03; p = 0.029). Conclusion The CFPs, especially RX and Elite ones, showed a higher prevalence of supplement utilization. Anabolic-related supplements (i.e., whey protein and creatine) were the most used; moreover, several CFPs used supplements not supported by scientific evidence. Cognitive restraint score was higher in supplement users than in non-users. RX level, being men, and poor sleep quality were associated with supplement utilization. These data draw attention to the necessity of nutritional education for CrossFit coaches and athletes. Broader studies are necessary to confirm our findings.
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Affiliation(s)
| | | | - Ana Carolina Oumatu Magalhães
- Centro Universitário São Camilo, Curso de Nutrição, São Paulo, SP Brazil
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Letícia Cirillo
- Centro Universitário São Camilo, Curso de Nutrição, São Paulo, SP Brazil
| | | | | | - Ronaldo Vagner Thomatieli dos Santos
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
- Departamento de Biociências, Universidade Federal de São Paulo, Santos, SP Brazil
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Giampá SQDC, Souza JFTD, Mello MTD, Tufik S, Santos RVTD, Antunes HKM. MAXIMUM EFFORT TRAINING PERFORMED IN HYPOXIA ALTERS THE MOOD PROFILE. REV BRAS MED ESPORTE 2018. [DOI: 10.1590/1517-869220182406133712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Introduction: Physical exercise at high altitude has become constant. However, the risks associated with this type of exercise represent a major concern, considering the influence of important stressors such as hypoxia and physical exercise on psychobiological and physiological responses. Objective: Analyze the mood state and behavior of physiological variables of volunteers subjected to a progressive loading protocol until they reached maximum volitional exhaustion, both at sea level and at a simulated altitude of 4500 meters. Method: For both conditions studied, the volunteers responded to two instruments that assess mood responses: The Brunel Mood Scale and the Visual Analogue Mood Scale. They also underwent blood sampling to measure blood lactate levels and to evaluate oxygen-hemoglobin saturation. These procedures were performed before, immediately after, and 30 and 60 minutes after the end of the protocol. Results: Hypoxia triggered negative effects on mood responses, especially when compared to sea level conditions. An increase in fatigue level (p=0.02) and mental confusion (p=0.04) was observed immediately after the exercise session, and reduction of vigor (p=0.03) was noted at 30 minutes, accompanied by a reduction in oxygen-hemoglobin saturation immediately after the session and at 30 minutes. There was also an increase in blood lactate levels immediately after the session (p=0.006). Conclusion: The particularities of the hypoxic environment associated with maximum exercise are able to cause a deterioration of mood and physiological responses, which can negatively modulate physical performance. This is a cross-sectional clinical study.
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Affiliation(s)
| | | | | | | | - Ronaldo Vagner Thomatieli dos Santos
- Universidade Federal de São Paulo, Brazil; Laboratório Interdisciplinar em Fisiologia e Exercício, Brazil; Universidade Federal de São Paulo, Brazil
| | - Hanna Karen Moreira Antunes
- Universidade Federal de São Paulo, Brazil; Laboratório Interdisciplinar em Fisiologia e Exercício, Brazil; Universidade Federal de São Paulo, Brazil
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de Aquino Lemos V, dos Santos RVT, Antunes HKM, Behn C, Viscor G, Lira FS, Bittar IGL, Caris AV, Tufik S, De Mello MT. Melatonin and sleep responses to normobaric hypoxia and aerobic physical exercise: A randomized controlled trial. Physiol Behav 2018; 196:95-103. [DOI: 10.1016/j.physbeh.2018.08.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/27/2018] [Accepted: 08/27/2018] [Indexed: 12/11/2022]
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Antunes BM, Campos EZ, dos Santos RVT, Rosa‐Neto JC, Franchini E, Bishop NC, Lira FS. Anti‐inflammatory response to acute exercise is related with intensity and physical fitness. J Cell Biochem 2018; 120:5333-5342. [DOI: 10.1002/jcb.27810] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/12/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Barbara Moura Antunes
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
| | - Eduardo Zapaterra Campos
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
- Department of Physical Education Federal University of Pernambuco Recife Brazil
| | | | - José Cesar Rosa‐Neto
- Immunometabolism Research Group, Institute of Biomedical Sciences, University of São Paulo São Paulo Brazil
| | - Emerson Franchini
- School of Physical Education and Sport, University of São Paulo São Paulo Brazil
| | - Nicolette C. Bishop
- School of Sport, Exercise and Health Sciences, Loughborough University Loughborough United Kingdom
| | - Fábio Santos Lira
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
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Mônico-Neto M, Moreira Antunes HK, dos Santos RVT, D'Almeida V, Alves Lino de Souza A, Azeredo Bittencourt LR, Tufik S. Physical activity as a moderator for obstructive sleep apnoea and cardiometabolic risk in the EPISONO study. Eur Respir J 2018; 52:13993003.01972-2017. [DOI: 10.1183/13993003.01972-2017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 07/28/2018] [Indexed: 11/05/2022]
Abstract
Obstructive sleep apnoea (OSA) is positively associated with cardiometabolic diseases; however, high levels of physical activity could decrease the incidence of OSA and associated comorbidities.In this study we aimed to examine the incidence of OSA in relation to physical activity, and its role as a protective factor in individuals with OSA on the incidence of cardiometabolic diseases, in an 8–9-year follow-up study. We analysed data of 658 volunteers from the São Paulo Epidemiologic Sleep Study (EPISONO), a cohort study of individuals aged 20–80 years, collected through polysomnography, the International Physical Activity Questionnaire and an assessment of cardiometabolic profile.Active subjects had a lower risk of developing OSA compared with nonactive subjects (relative risk 0.877, 95% CI 0.296–0.855) and there was a reduced risk of developing type 2 diabetes mellitus in active/apnoeic subjects (relative risk 0.493, 95% CI 0.252–0.961) compared with nonactive subjects. Metabolic equivalent was negatively associated to cardiometabolic markers, such as C-reactive protein (exp(B)=0.720; p=0.001), interleukin-6 (exp(B)=0.991; p=0.03), insulin (exp(B)=0.982; p=0.03), triglycerides (exp(B)=0.997; p<0.001), homeostasis model assessment for insulin resistance (exp(B)≤0.946; p<0.024), quantitative insulin sensitivity check index (exp(B)=992.4; p<0.001) and mean arterial pressure (exp(B)=0.987; p=0.001).Physical activity was a protective factor against type 2 diabetes mellitus in apnoeic individuals; moreover, being active reduced the risk of developing OSA and was associated with a better cardiometabolic profile.
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Mônico-Neto M, Antunes HKM, Santos RVTD, D’Almeida V, Bittencourt LRA, Tufik S. Association Between Cardiovascular Markers And Physical Activity In Patients With Obstructive Sleep Apnea. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000536677.85109.3a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Minari ALA, Oyama LM, dos Santos RVT. The Secretory Leukocyte Protease Inhibitor mRNA expression is involved with inflammatory control after downhill exercise in the triceps brachii intermediary head in Wistar rats. J Muscle Res Cell Motil 2017; 38:231-239. [DOI: 10.1007/s10974-017-9475-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 06/27/2017] [Indexed: 01/07/2023]
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Caris AV, Ysis W, Lemos VDA, Bottura R, Santos RVTD. Nutrition and exercise can attenuate inflammatory and psychobiological changes in hypoxia? Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2016.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Silveira LS, Antunes BDMM, Minari ALA, dos Santos RVT, Neto JCR, Lira FS. Macrophage Polarization: Implications on Metabolic Diseases and the Role of Exercise. Crit Rev Eukaryot Gene Expr 2016; 26:115-32. [DOI: 10.1615/critreveukaryotgeneexpr.2016015920] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Piovezan RD, Abucham J, dos Santos RVT, Mello MT, Tufik S, Poyares D. The impact of sleep on age-related sarcopenia: Possible connections and clinical implications. Ageing Res Rev 2015. [PMID: 26216211 DOI: 10.1016/j.arr.2015.07.003] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sarcopenia is a geriatric condition that comprises declined skeletal muscle mass, strength and function, leading to the risk of multiple adverse outcomes, including death. Its pathophysiology involves neuroendocrine and inflammatory factors, unfavorable nutritional habits and low physical activity. Sleep may play a role in muscle protein metabolism, although this hypothesis has not been studied extensively. Reductions in duration and quality of sleep and increases in prevalence of circadian rhythm and sleep disorders with age favor proteolysis, modify body composition and increase the risk of insulin resistance, all of which have been associated with sarcopenia. Data on the effects of age-related slow-wave sleep decline, circadian rhythm disruptions and obstructive sleep apnea (OSA) on hypothalamic-pituitary-adrenal (HPA), hypothalamic-pituitary-gonadal (HPG), somatotropic axes, and glucose metabolism indicate that sleep disorder interventions may affect muscle loss. Recent research associating OSA with the risk of conditions closely related to the sarcopenia process, such as frailty and sleep quality impairment, indirectly suggest that sleep can influence skeletal muscle decline in the elderly. Several protein synthesis and degradation pathways are mediated by growth hormone (GH), insulin-like growth factor-1 (IGF-1), testosterone, cortisol and insulin, which act on the cellular and molecular levels to increase or reestablish muscle fiber, strength and function. Age-related sleep problems potentially interfere intracellularly by inhibiting anabolic hormone cascades and enhancing catabolic pathways in the skeletal muscle. Specific physical exercises combined or not with nutritional recommendations are the current treatment options for sarcopenia. Clinical studies testing exogenous administration of anabolic hormones have not yielded adequate safety profiles. Therapeutic approaches targeting sleep disturbances to normalize circadian rhythms and sleep homeostasis may represent a novel strategy to preserve or recover muscle health in older adults. Promising research results regarding the associations between sleep variables and sarcopenia biomarkers and clinical parameters are required to confirm this hypothesis.
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Souza JFTD, Giampá SQDC, Lemos VDA, Santos SAD, Silva ETD, De Mello MT, Tufik S, Santos RVTD, Antunes HKM. Exercise performed at hypoxia influences mood state and anxiety symptoms. Motriz: rev educ fis 2015. [DOI: 10.1590/s1980-65742015000200008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
During hypoxia conditions, psychological states can be worsened. However, little information is available regarding the effect of physical exercise performed in hypoxia conditions on mood state and anxiety symptoms. The aim of the present study was to elucidate the acute effect of moderate physical exercise performed at hypoxia on mood states and anxiety symptoms in healthy young subjects. Ten volunteers were subjected to the following conditions: a normoxic condition (NC) and a hypoxic condition (HC). They performed 45 min of physical exercise. Their anxiety symptoms and mood states were evaluated at the initial time point as well as immediately following and 30 and 60 min after the exercise session. Our results showed a significant increase in post-exercise anxiety symptoms and a significant decrease in mood scores immediately after and 30 min after exercise performed in the HC. Moderate physical activity performed at hypoxia condition increased post-exercise anxiety and worsened mood state.
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de Aquino Lemos V, Antunes HKM, dos Santos RVT, Lira FS, Tufik S, de Mello MT. High altitude exposure impairs sleep patterns, mood, and cognitive functions. Psychophysiology 2012; 49:1298-306. [PMID: 22803634 DOI: 10.1111/j.1469-8986.2012.01411.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 05/22/2012] [Indexed: 01/19/2023]
Abstract
This work evaluated the importance of sleep on mood and cognition after 24 h of exposure to hypoxia. Ten males, aged 23-30 years, were placed in a normobaric chamber simulating an altitude of 4,500 m. Sleep assessments were conducted from 22:00-6:00; all mood and cognitive assessments were performed 20 min after awakening. The assessments were conducted in normoxic conditions and after 24 h of hypoxia. Sleep was reevaluated 14 h after the start of exposure to hypoxic conditions, and mood state and cognitive functions were reevaluated 24 h after the start of exposure to hypoxic conditions. Hypoxia reduced total sleep time, sleep efficiency, slow-wave sleep, and rapid eye movement. Depressive mood, anger, and fatigue increased under hypoxic conditions. Vigor, attention, visual and working memory, concentration, executive functions, inhibitory control, and speed of mental processing worsened. Changes in sleep patterns can modulate mood and cognition after 24 h.
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Affiliation(s)
- Valdir de Aquino Lemos
- Departamento de Psicobiologia-Campus São Paulo, Universidade Federal de São Paulo, São Paulo, Brasil
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Lemos VDA, Antunes HKM, Santos RVTD, Prado JMDS, Tufik S, Mello MTD. Efeitos da exposição à altitude sobre os aspectos neuropsicológicos: uma revisão da literatura. Rev Bras Psiquiatr 2009; 32:70-6. [DOI: 10.1590/s1516-44462009005000013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 07/16/2009] [Indexed: 11/22/2022]
Abstract
OBJETIVO: Discutir os efeitos da exposição à altitude sobre as funções neuropsicológicas. MÉTODO: Foi realizada uma revisão de literatura usando como fonte de pesquisa artigos indexados no Pubmed, no período de 1921 a 2008, utilizando as palavras-chave "cognition and hypoxia", "hypoxia and neuropsychology", "acute hypoxia", "chronic hypoxia" e "acclimatization and hypoxia", além de livros específicos do assunto. DISCUSSÃO: Os efeitos agudos e crônicos da hipóxia podem alterar inúmeras funções neuropsicológicas em diferentes altitudes, decorrentes de alterações fisiológicas que resultam da diminuição parcial de oxigênio (O2), que podem levar as alterações neuropsicológicas, como atenção, memória, tomada de decisão e demais funções executivas, em indivíduos expostos a grandes altitudes. CONCLUSÃO: Indivíduos que se expõem às grandes altitudes devem utilizar suplementação de O2 e prática de aclimatização, entre outras estratégias para minimizar os efeitos negativos da hipóxia nos aspectos neuropsicológicos.
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Affiliation(s)
- Valdir de Aquino Lemos
- Universidade Federal de São Paulo, Brasil; Centro de Estudos em Psicobiologia e Exercício, Brasil
| | | | | | | | - Sergio Tufik
- Universidade Federal de São Paulo, Brasil; Centro de Estudos em Psicobiologia e Exercício, Brasil; Conselho Nacional de Desenvolvimento Científico e Tecnológico
| | - Marco Túlio De Mello
- Universidade Federal de São Paulo, Brasil; Centro de Estudos em Psicobiologia e Exercício, Brasil; Conselho Nacional de Desenvolvimento Científico e Tecnológico
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Vaisberg M, de Mello MT, Seelaender MCL, dos Santos RVT, Costa Rosa LFBP. Reduced maximal oxygen consumption and overproduction of proinflammatory cytokines in athletes. Neuroimmunomodulation 2007; 14:304-9. [PMID: 18382117 DOI: 10.1159/000123155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 02/08/2008] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE It was the aim of this study to evaluate whether chronic pain in athletes is related to performance, measured by the maximum oxygen consumption and production of hormones and cytokines. METHODS Fifty-five athletes with a mean age of 31.9 +/- 4.2 years engaged in regular competition and showing no symptoms of acute inflammation, particularly fever, were studied. They were divided into 2 subgroups according to the occurrence of pain. Plasma concentrations of adrenaline, noradrenaline, cortisol, prolactin, growth hormone and dopamine were measured by radioimmunoassay, and the production of the cytokines interleukin (IL)-1, IL-2, IL-4, IL-6, tumor necrosis factor-alpha, interferon-alpha and prostaglandin E(2) by whole-blood culture. Maximal oxygen consumption was determined during an incremental treadmill test. RESULTS There was no change in the concentration of stress hormones, but the athletes with chronic pain showed a reduction in maximum oxygen consumption (22%) and total consumption at the anaerobic threshold (25%), as well as increased cytokine production. Increases of 2.7-, 8.1-, 1.7- and 3.7-fold were observed for IL-1, IL-2, tumor necrosis factor-alpha and interferon-alpha, respectively. CONCLUSIONS Our data show that athletes with chronic pain have enhanced production of proinflammatory cytokines and lipid mediators and reduced performance in the ergospirometric test.
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Affiliation(s)
- Mauro Vaisberg
- Department of Medicine, Baixada Santista Campus, Federal University of São Paulo, São Paulo, Brazil.
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