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Mastrandrea CJ, Hedge ET, Hughson RL. The Detrimental Effects of Bedrest: Premature Cardiovascular Aging and Dysfunction. Can J Cardiol 2024; 40:1468-1482. [PMID: 38759726 DOI: 10.1016/j.cjca.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024] Open
Abstract
Bedrest as an experimental paradigm or as an in-patient stay for medical reasons has negative consequences for cardiovascular health. The effects of severe inactivity parallel many of the changes experienced with natural aging but over a much shorter duration. Cardiac function is reduced, arteries stiffen, neural reflex responses are impaired, and metabolic and oxidative stress responses impose burden on the heart and vascular systems. The effect of these changes is revealed in studies of integrative function. Aerobic fitness progressively deteriorates with bedrest and tolerance of upright posture is rapidly impaired. In this review we consider the similarities of aging and bedrest-induced cardiovascular deconditioning. We concur with many recent clinical recommendations that early and regular mobility with upright posture will reduce likelihood of hospital-associated disability related to bedrest.
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Affiliation(s)
- Carmelo J Mastrandrea
- Schlegel-UW Research Institute for Aging, Waterloo, Ontario, Canada; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Eric T Hedge
- Schlegel-UW Research Institute for Aging, Waterloo, Ontario, Canada; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Richard L Hughson
- Schlegel-UW Research Institute for Aging, Waterloo, Ontario, Canada.
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McCaig JL, Gordon BA, Taylor CJ. Effectiveness of exercise intervention on physical and health outcomes in patients admitted to an acute medical ward: A systematic review and meta-analysis. Clin Rehabil 2024; 38:884-897. [PMID: 38533547 PMCID: PMC11118790 DOI: 10.1177/02692155241240637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/01/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVE To evaluate the effectiveness of inpatient medical ward exercise on physical and health outcomes in adults compared with usual care. DATA SOURCES Medline, CINAHL and EMBASE were searched from inception to 20 April 2023. REVIEW METHODS Randomised-controlled trials in English that reported physical and health outcomes of adults who received an exercise intervention on an acute medical ward were included. Two reviewers independently extracted data. Methodological quality was assessed using the PEDro and TESTEX scales. The GRADE rating assessed the quality of evidence to evaluate the certainty of effect. Meta-analyses were performed where possible. RESULTS Thirteen studies were included, with 1273 unique participants (mean [SD] age, 75.5 [11] years), which compared exercise intervention with usual care. Low quality evidence demonstrated a significant improvement in aerobic capacity ([MD], 1.39 m [95% CI, 0.23, 2.55], p = 0.02) and maximum isometric strength ([MD], 2.3 kg [95% CI, 2.2, 2.4], p < 0.001) for the exercise intervention compared with usual care. Low quality evidence demonstrated no difference for in-hospital falls count ([OR], 1.93 [95% CI, 0.61, 6.12] p = 0.27) or mortality ([OR], 0.77 [95% CI, 0.48, 1.23], p = 0.27). Moderate quality evidence demonstrated no difference for length of stay ([MD], -0.10 days [95% CI, -0.31, 0.11] p = 0.36). CONCLUSION Exercise prescribed during an acute medical ward stay improves aerobic capacity and maximum isometric strength but may not reduce length of stay, in-hospital falls or mortality.
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Affiliation(s)
- Jane L McCaig
- La Trobe Rural Health School, La Trobe University, Bendigo, Australia
- Holsworth Research Initiative, La Trobe University, Bendigo, Australia
| | - Brett A Gordon
- La Trobe Rural Health School, La Trobe University, Bendigo, Australia
- Holsworth Research Initiative, La Trobe University, Bendigo, Australia
| | - Carolyn J Taylor
- La Trobe Rural Health School, La Trobe University, Bendigo, Australia
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Casuso RA, Huertas JR, Aragón‐Vela J. The role of muscle disuse in muscular and cardiovascular fitness: A systematic review and meta-regression. Eur J Sport Sci 2024; 24:812-823. [PMID: 38874988 PMCID: PMC11235952 DOI: 10.1002/ejsc.12093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/06/2024] [Accepted: 02/12/2024] [Indexed: 06/15/2024]
Abstract
We aimed to assess the effects of muscle disuse on muscle strength (MS), muscle mass (MM) and cardiovascular fitness. Databases were scrutinized to identify human studies assessing the effects of muscle disuse on both (1) MM and (2) maximal oxygen uptake (VO2max) and/or MS. Random-effects meta-analysis and meta-regression with initial physical fitness and length of the protocol as a priori determined moderators were performed. We quantitatively analyzed 51 different studies, and the level of significance was set at p < 0.05. Data from the participants in 14 studies showed a decline in both VO2max (SMD: -0.93; 95% CI: -1.27 to -0.58) and MM (SMD: -0.34; 95% CI: -0.57 to -0.10). Data from 47 studies showed a decline in strength (-0.88; 95% CI: -1.04 to -0.73) and mass (SMD: -0.47; 95% CI: -0.58 to -0.36). MS loss was twice as high as MM loss, but differences existed between anatomical regions. Notably, meta-regression analysis revealed that initial MS was inversely associated with MS decline. VO2max and MS decline to a higher extent than MM during muscle disuse. We reported a more profound strength loss in subjects with high muscular strength. This is physiologically relevant for athletes because their required muscular strength can profoundly decline during a period of muscle disuse. It should however be noted that a period of muscle disuse can have devastating consequences in old subjects with low muscular strength.
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Affiliation(s)
- Rafael A. Casuso
- Department of Health SciencesUniversidad Loyola AndalucíaCórdobaSpain
| | - Jesús R. Huertas
- Department of PhysiologyInstitute of Nutrition and Food TechnologyUniversity of GranadaGranadaSpain
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Luciano F, Minetti AE, Pavei G. Metabolic cost and mechanical work of walking in a virtual reality emulator. Eur J Appl Physiol 2024; 124:783-792. [PMID: 37776345 PMCID: PMC10879236 DOI: 10.1007/s00421-023-05306-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/31/2023] [Indexed: 10/02/2023]
Abstract
PURPOSE The purpose of this study was to investigate the metabolic cost (C), mechanical work, and kinematics of walking on a multidirectional treadmill designed for locomotion in virtual reality. METHODS Ten participants (5 females, body mass 67.2 ± 8.1 kg, height 1.71 ± 0.07 m, age 23.6 ± 1.9 years, mean ± SD) walked on a Virtuix Omni multidirectional treadmill at four imposed stride frequencies: 0.70, 0.85, 1.00, and 1.15 Hz. A portable metabolic system measured oxygen uptake, enabling calculation of C and the metabolic equivalent of task (MET). Gait kinematics and external, internal, and total mechanical work (WTOT) were calculated by an optoelectronic system. Efficiency was calculated either as WTOT/C or by summing WTOT to the work against sliding frictions. Results were compared with normal walking, running, and skipping. RESULTS C was higher for walking on the multidirectional treadmill than for normal walking, running, and skipping, and decreased with speed (best-fit equation: C = 20.2-27.5·speed + 15.8·speed2); the average MET was 4.6 ± 1.4. Mechanical work was higher at lower speeds, but similar to that of normal walking at higher speeds, with lower pendular energy recovery and efficiency; differences in efficiency were explained by the additional work against sliding frictions. At paired speeds, participants showed a more forward-leaned trunk and higher ankle dorsiflexion, stride frequency, and duty factor than normal walking. CONCLUSION Walking on a multidirectional treadmill requires a higher metabolic cost and different mechanical work and kinematics than normal walking. This raises questions on its use for gait rehabilitation but highlights its potential for high-intensity exercise and physical activity promotion.
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Affiliation(s)
- Francesco Luciano
- Locomotion Physiomechanics Laboratory, Department of Pathophysiology and Transplantation - Division of Physiology, University of Milan, Via Mangiagalli 32, 20133, Milan, Italy.
| | - Alberto E Minetti
- Locomotion Physiomechanics Laboratory, Department of Pathophysiology and Transplantation - Division of Physiology, University of Milan, Via Mangiagalli 32, 20133, Milan, Italy
| | - Gaspare Pavei
- Locomotion Physiomechanics Laboratory, Department of Pathophysiology and Transplantation - Division of Physiology, University of Milan, Via Mangiagalli 32, 20133, Milan, Italy
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Alme TN, Andreasson A, Asprusten TT, Bakken AK, Beadsworth MBJ, Boye B, Brodal PA, Brodwall EM, Brurberg KG, Bugge I, Chalder T, Due R, Eriksen HR, Fink PK, Flottorp SA, Fors EA, Jensen BF, Fundingsrud HP, Garner P, Havdal LB, Helgeland H, Jacobsen HB, Johnson GE, Jonsjö M, Knoop H, Landmark L, Launes G, Lekander M, Linnros H, Lindsäter E, Liira H, Linnestad L, Loge JH, Lyby PS, Malik S, Malt UF, Moe T, Norlin AK, Pedersen M, Pignatiello SE, Rask CU, Reme SE, Roksund G, Sainio M, Sharpe M, Thorkildsen RF, van Roy B, Vandvik PO, Vogt H, Wyller HB, Wyller VBB. Chronic fatigue syndromes: real illnesses that people can recover from. Scand J Prim Health Care 2023; 41:372-376. [PMID: 37740918 PMCID: PMC11001335 DOI: 10.1080/02813432.2023.2235609] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 07/07/2023] [Indexed: 09/25/2023] Open
Abstract
The 'Oslo Chronic Fatigue Consortium' consists of researchers and clinicians who question the current narrative that chronic fatigue syndromes, including post-covid conditions, are incurable diseases. Instead, we propose an alternative view, based on research, which offers more hope to patients. Whilst we regard the symptoms of these conditions as real, we propose that they are more likely to reflect the brain's response to a range of biological, psychological, and social factors, rather than a specific disease process. Possible causes include persistent activation of the neurobiological stress response, accompanied by associated changes in immunological, hormonal, cognitive and behavioural domains. We further propose that the symptoms are more likely to persist if they are perceived as threatening, and all activities that are perceived to worsen them are avoided. We also question the idea that the best way to cope with the illness is by prolonged rest, social isolation, and sensory deprivation.Instead, we propose that recovery is often possible if patients are helped to adopt a less threatening understanding of their symptoms and are supported in a gradual return to normal activities. Finally, we call for a much more open and constructive dialogue about these conditions. This dialogue should include a wider range of views, including those of patients who have recovered from them.
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Affiliation(s)
- The Oslo Chronic Fatigue Consortium
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
- Department of Clinical Epidemiology, Karolinska Institutet, Stockholm, Sweden
- General Practitioner, Hjelmeland, Norway
- VID Specialized University, Oslo, Norway
- St. Olavs Hospital, Trondheim, Norway
- Tropical and infectious Disease Unit, Royal Liverpool University Hospital. Liverpool University Hospitals Foundation Trust, Liverpool, UK
- Department of Behavioral Medicine, University of Oslo, Oslo, Norway
- Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division for Health Services, Norwegian Institute of Public Health, Oslo, Norway
- Department of Child and Adolescent Mental Health in Hospitals, Oslo University Hospital, Oslo, Norway
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
- Department of Sport, Food and Natural Sciences, Western Norway University of Applied Sciences, Bergen, Norway
- Research Clinic for Functional Disorders and Psychosomatics. Aarhus University Hospital, Aarhus, Denmark
- Centre for Epidemic Interventions Research, Norwegian Institute of Public Health, Oslo, Norway
- Department of General Practice, University of Oslo, Oslo, Norway
- Faculty of Medicine and Health Sciences, Department of Public Health and Nursing, General Practitioner Research Unit, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Nydalen Helsehus, Oslo, Norway
- The Child & Adolescent Health Services, University Hospital of North Norway, Tromsø, Norway
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, England
- Department of Behavior Medicine, Karolinskal University Hospital, Stockholm, Sweden
- National Advisory Unit on Psychosomatic Disorders in Children and Adolescents. Department of Child and Adolescent Mental Health in Hospitals, Oslo University Hospital, Oslo, Norway
- Department of Pain management and research, Oslo University Hospital, Oslo, Norway
- CatoSenteret Rehabilitation Center, Son, Norway
- University of Oslo, Oslo, Norway
- Department of Clinical Neuroscience, Karolinska Institutet Stockholm, Sweden
- Department of Medical Psychology, Amsterdam University Medical Centres, Location University of Amsterdam, Amsterdam, The Netherlands
- Department of Psychology, NTNU, Trondheim, Norway
- University of Bergen, Bergen, Norway
- Stress Research Institute, Department of psychology, Stockholm University, Division of Psychology/Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Health, Medicine, and Caring Sciences Pain and Rehabilitation Center, Linköping University Hospital, Linköping, Sweden
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Helsinki University Hospital, Helsinki, Finland
- Saglia medical center, Vestby, Norway
- Division of Clinical Neuroscience. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Chief Physician, Falck Norge, Oslo, Norway
- Unit Psychosomatic medicine and CL psychiatry, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Department of Child and Adolescent Psychiatry, Aarhus University Hospital, Aarhus, Denmark
- The Mind Body Lab, Department of Psychology, University of Oslo
- General Practitioner, Klosterhagen Legesenter, Norway
- Outpatient Clinic for Functional Disorders, Helsinki University Hospital, Helsinki, Finland
- Psychological Medicine, University of Oxford, Oxford, UK
- Department of Medicine, Diakonhjemmet Hospital, Oslo, Norway
- Department of Medicine, Lovisenberg Diaconal Hospital, Oslo, Norway
- Department of Community Medicine and Global Health, Institute for Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
- Clinical Psychologist, Oslo, Norway
| | - Tomas Nordheim Alme
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Anna Andreasson
- Department of Clinical Epidemiology, Karolinska Institutet, Stockholm, Sweden
| | | | - Anne Karen Bakken
- VID Specialized University, Oslo, Norway
- St. Olavs Hospital, Trondheim, Norway
| | - Michael BJ Beadsworth
- Tropical and infectious Disease Unit, Royal Liverpool University Hospital. Liverpool University Hospitals Foundation Trust, Liverpool, UK
| | - Birgitte Boye
- Department of Behavioral Medicine, University of Oslo, Oslo, Norway
- Unit Psychosomatic medicine and CL psychiatry, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Per Alf Brodal
- Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Elias Myrstad Brodwall
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Ingrid Bugge
- Department of Child and Adolescent Mental Health in Hospitals, Oslo University Hospital, Oslo, Norway
| | - Trudie Chalder
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
| | - Reidar Due
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Hege Randi Eriksen
- Department of Sport, Food and Natural Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Per Klausen Fink
- Research Clinic for Functional Disorders and Psychosomatics. Aarhus University Hospital, Aarhus, Denmark
| | - Signe Agnes Flottorp
- Centre for Epidemic Interventions Research, Norwegian Institute of Public Health, Oslo, Norway
- Department of General Practice, University of Oslo, Oslo, Norway
| | - Egil Andreas Fors
- Faculty of Medicine and Health Sciences, Department of Public Health and Nursing, General Practitioner Research Unit, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | | | | | - Paul Garner
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, England
| | - Lise Beier Havdal
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Helene Helgeland
- National Advisory Unit on Psychosomatic Disorders in Children and Adolescents. Department of Child and Adolescent Mental Health in Hospitals, Oslo University Hospital, Oslo, Norway
| | - Henrik Børsting Jacobsen
- Department of Pain management and research, Oslo University Hospital, Oslo, Norway
- The Mind Body Lab, Department of Psychology, University of Oslo
| | | | - Martin Jonsjö
- Department of Behavior Medicine, Karolinskal University Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet Stockholm, Sweden
| | - Hans Knoop
- Department of Medical Psychology, Amsterdam University Medical Centres, Location University of Amsterdam, Amsterdam, The Netherlands
| | - Live Landmark
- Department of Psychology, NTNU, Trondheim, Norway
- The Mind Body Lab, Department of Psychology, University of Oslo
| | | | - Mats Lekander
- Stress Research Institute, Department of psychology, Stockholm University, Division of Psychology/Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Hannah Linnros
- Department of Health, Medicine, and Caring Sciences Pain and Rehabilitation Center, Linköping University Hospital, Linköping, Sweden
| | - Elin Lindsäter
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Jon Håvard Loge
- Department of Behavioral Medicine, University of Oslo, Oslo, Norway
| | | | - Sadaf Malik
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Ulrik Fredrik Malt
- Division of Clinical Neuroscience. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Trygve Moe
- Chief Physician, Falck Norge, Oslo, Norway
| | - Anna-Karin Norlin
- Department of Health, Medicine, and Caring Sciences Pain and Rehabilitation Center, Linköping University Hospital, Linköping, Sweden
| | - Maria Pedersen
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Siv Elin Pignatiello
- Unit Psychosomatic medicine and CL psychiatry, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Charlotte Ulrikka Rask
- Department of Child and Adolescent Psychiatry, Aarhus University Hospital, Aarhus, Denmark
| | - Silje Endresen Reme
- Department of Pain management and research, Oslo University Hospital, Oslo, Norway
- The Mind Body Lab, Department of Psychology, University of Oslo
| | - Gisle Roksund
- General Practitioner, Klosterhagen Legesenter, Norway
| | - Markku Sainio
- Outpatient Clinic for Functional Disorders, Helsinki University Hospital, Helsinki, Finland
| | - Michael Sharpe
- Psychological Medicine, University of Oxford, Oxford, UK
| | | | - Betty van Roy
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Per Olav Vandvik
- Department of Medicine, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Henrik Vogt
- Department of Community Medicine and Global Health, Institute for Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Vegard Bruun Bratholm Wyller
- Department of Paediatrics and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Fernandes IA, Balavenkataraman A, Bonvie-Hill NE, Patel NM, Taylor BJ, Helgeson SA. Does COVID-19 impair V̇o 2peak in patients with cardiorespiratory disease? Insight from cardiopulmonary responses to maximal exercise pre- and post-illness. J Appl Physiol (1985) 2023; 135:1146-1156. [PMID: 37855032 PMCID: PMC10979800 DOI: 10.1152/japplphysiol.00357.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 10/20/2023] Open
Abstract
Reduced exercise capacity has been suggested as a cardinal sequela of COVID-19. However, only cross-sectional approaches that either do not consider individuals with concomitant cardiorespiratory disease or account for exercise capacity before infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) support this assumption. Is reduced exercise capacity a sequela of SARS-CoV-2 infection in patients with concomitant cardiorespiratory disease? We retrospectively reviewed cardiopulmonary exercise testing (CPET) data collected across three hospitals between October 2018 and March 2022. Forty-two patients who completed a CPET before and after COVID-19 and 25 patients who performed two separate CPETs but did not contract COVID-19 (CTL) were included. Within each patient, the same test protocol was performed at the first and second CPETs. The time between CPETs was similar between the groups (COVID-19 489 ± 534 vs. CTL 534 ± 257 days, P = 0.662). The COVID-19 group performed the CPETs 312 ± 232 days before and 176 ± 110 days after infection. Exercise time, peak heart rate, peak systolic pressure, oxygen uptake (V̇o2) at anaerobic threshold, peak ventilation, and ventilatory efficiency were not different between the CPETs in both groups. Peak V̇o2 was reduced from before to after SARS-CoV-2 infection. However, the change in V̇o2peak from the first to the second CPET was not different between COVID-19 vs. CTL. Accounting for V̇o2peak before COVID-19 and including a group of control patients, we find limited evidence for reduced exercise capacity as a sequela of SARS-CoV-2 infection in patients with concomitant cardiorespiratory disease.NEW & NOTEWORTHY There is accumulating evidence that reduced exercise capacity is, or can be, an outcome following COVID-19. However, evidence to date relies upon cross-sectional approaches that either do not consider patients with concomitant cardiorespiratory disease or account for pre-infection exercise capacity data. Accounting for V̇o2peak before COVID-19 and including a group of control patients, we find limited evidence for reduced exercise capacity as a sequela of SARS-CoV-2 infection in patients with concomitant cardiorespiratory disease.
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Affiliation(s)
- Igor A Fernandes
- Cardiovascular Disease, Mayo Clinic, Jacksonville, Florida, United States
- Department of Health and Kinesiology, Purdue University, West Lafayette, Indiana, United States
| | | | | | - Neal M Patel
- Pulmonary & Critical Care Medicine, Mayo Clinic, Jacksonville, Florida, United States
| | - Bryan J Taylor
- Cardiovascular Disease, Mayo Clinic, Jacksonville, Florida, United States
| | - Scott A Helgeson
- Pulmonary & Critical Care Medicine, Mayo Clinic, Jacksonville, Florida, United States
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Hajj-Boutros G, Sonjak V, Faust A, Hedge E, Mastrandrea C, Lagacé JC, St-Martin P, Naz Divsalar D, Sadeghian F, Chevalier S, Liu-Ambrose T, Blaber AP, Dionne IJ, Duchesne S, Hughson R, Kontulainen S, Theou O, Morais JA. Impact of 14 Days of Bed Rest in Older Adults and an Exercise Countermeasure on Body Composition, Muscle Strength, and Cardiovascular Function: Canadian Space Agency Standard Measures. Gerontology 2023; 69:1284-1294. [PMID: 37717560 PMCID: PMC10634275 DOI: 10.1159/000534063] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023] Open
Abstract
INTRODUCTION Head-down bed rest (HDBR) has long been used as an analog to microgravity, and it also enables studying the changes occurring with aging. Exercise is the most effective countermeasure for the deleterious effects of inactivity. The aim of this study was to investigate the efficacy of an exercise countermeasure in healthy older participants on attenuating musculoskeletal deconditioning, cardiovascular fitness level, and muscle strength during 14 days of HDBR as part of the standard measures of the Canadian Space Agency. METHODS Twenty-three participants (12 males and 11 females), aged 55-65 years, were admitted for a 26-day inpatient stay at the McGill University Health Centre. After 5 days of baseline assessment tests, they underwent 14 days of continuous HDBR followed by 7 days of recovery with repeated tests. Participants were randomized to passive physiotherapy or an exercise countermeasure during the HDBR period consisting of 3 sessions per day of either high-intensity interval training (HIIT) or low-intensity cycling or strength exercises for the lower and upper body. Peak aerobic power (V̇O2peak) was determined using indirect calorimetry. Body composition was assessed by dual-energy X-ray absorptiometry, and several muscle group strengths were evaluated using an adjustable chair dynamometer. A vertical jump was used to assess whole-body power output, and a tilt test was used to measure cardiovascular and orthostatic challenges. Additionally, changes in various blood parameters were measured as well as the effects of exercise countermeasure on these measurements. RESULTS There were no differences at baseline in main characteristics between the control and exercise groups. The exercise group maintained V̇O2peak levels similar to baseline, whereas it decreased in the control group following 14 days of HDBR. Body weight significantly decreased in both groups. Total and leg lean masses decreased in both groups. However, total body fat mass decreased only in the exercise group. Isometric and isokinetic knee extension muscle strength were significantly reduced in both groups. Peak velocity, flight height, and flight time were significantly reduced in both groups with HDBR. CONCLUSION In this first Canadian HDBR study in older adults, an exercise countermeasure helped maintain aerobic fitness and lean body mass without affecting the reduction of knee extension strength. However, it was ineffective in protecting against orthostatic intolerance. These results support HIIT as a promising approach to preserve astronaut health and functioning during space missions, and to prevent deconditioning as a result of hospitalization in older adults.
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Affiliation(s)
- Guy Hajj-Boutros
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada,
| | - Vita Sonjak
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Andréa Faust
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Eric Hedge
- Department of Kinesiology, Schlegel-University of Waterloo Research Institute for Aging, Waterloo, Ontario, Canada
| | - Carmelo Mastrandrea
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Jean-Christophe Lagacé
- Faculté des Sciences de l'activité Physique, Centre de Recherche sur le Vieillissement, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Philippe St-Martin
- Faculté des Sciences de l'activité Physique, Centre de Recherche sur le Vieillissement, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Donya Naz Divsalar
- Department of Biomedical Physiology and Kinesiology, Aerospace Physiology Laboratory, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Farshid Sadeghian
- Department of Biomedical Physiology and Kinesiology, Aerospace Physiology Laboratory, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Stéphanie Chevalier
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
- School of Human Nutrition, McGill University, Montreal, Québec, Canada
| | - Teresa Liu-Ambrose
- Aging, Mobility and Cognitive Neuroscience Laboratory, Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew P Blaber
- Department of Biomedical Physiology and Kinesiology, Aerospace Physiology Laboratory, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Isabelle J Dionne
- Faculté des Sciences de l'activité Physique, Centre de Recherche sur le Vieillissement, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Simon Duchesne
- Department of Radiology and Nuclear Medicine, Université Laval, Quebec City, Québec, Canada
- CERVO Brain Research Center, Quebec City, Québec, Canada
| | - Richard Hughson
- Department of Kinesiology, Schlegel-University of Waterloo Research Institute for Aging, Waterloo, Ontario, Canada
| | - Saija Kontulainen
- College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Olga Theou
- Division of Geriatric Medicine, Queen Elizabeth II Health Sciences Centre, Nova Scotia Health, Halifax, Nova Scotia, Canada
| | - José A Morais
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
- Division of Geriatric Medicine, Faculty of Medicine, McGill University, Montreal, Québec, Canada
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8
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Woodward SH, Jamison AL, Gala S, Lawlor C, Villasenor D, Tamayo G, Puckett M. Heart Rate During Sleep in PTSD Patients: Moderation by Contact with a Service Dog. Biol Psychol 2023; 180:108586. [PMID: 37187229 DOI: 10.1016/j.biopsycho.2023.108586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 04/12/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023]
Abstract
There is growing interest in the potential health benefits of dog ownership in both the lay and scientific communities. Large reductions in risk for cardiovascular disease and all-cause mortality in dog owners relative to non-owners have been observed in epidemiological samples. Persons diagnosed with posttraumatic stress disorder exhibit elevated risk for cardiovascular disease. The current study tested a sample of 45 U.S. military veterans with deployment-related posttraumatic stress disorder employing an intensive, longitudinal, within-subjects design contrasting sleep heart rate on nights with and without a service dog. As participants were engaged in residential psychiatric treatment, sleep opportunities, waking activities, meals, and medications, were consistently scheduled. The primary recording methodology, mattress actigraphy, enabled passive quantification of heart rate over a total sample of 1097 nights. Service dog contact was associated with reduced sleep heart rate especially in participants with more severe PTSD. Longer-term longitudinal studies will be needed to assess the durability and asymptotic magnitude of this effect. An unexpected effect of nights in study was associated with increased heart rate consistent with hospitalization-associated deconditioning.
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Affiliation(s)
- Steven H Woodward
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304.
| | - Andrea L Jamison
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304
| | - Sasha Gala
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304
| | - Catherine Lawlor
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304
| | - Diana Villasenor
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304
| | - Gisselle Tamayo
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 3801 Miranda Ave, Palo Alto, CA 94304
| | - Melissa Puckett
- Trauma Recovery Programs and Recreation Service, VA Palo Alto Healthcare System. 3801 Miranda Ave, Palo Alto, CA 94304
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9
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Kerr NR, Booth FW. Contributions of physical inactivity and sedentary behavior to metabolic and endocrine diseases. Trends Endocrinol Metab 2022; 33:817-827. [PMID: 36283907 DOI: 10.1016/j.tem.2022.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
Physical inactivity is the fourth leading global cause of death and is a major contributor to metabolic and endocrine diseases. In this review we provide a current update of the past 5 years in the field as it pertains to the most prevalent and deadly chronic diseases. Despite the prevalence of physical inactivity in modern society, it remains largely overlooked relative to other comparable risk factors such as obesity, and our molecular understanding of how physical inactivity impacts metabolism is still partially unknown. Therefore, we discuss current clinical inactivity models along with their most recent findings regarding health outcomes along with any discrepancies that are present in the field. Lastly, we discuss future directions and the need for translatable animal models of physical inactivity to discover novel molecular targets for the prevention of chronic disease.
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Affiliation(s)
- Nathan R Kerr
- Department of Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Frank W Booth
- Department of Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA.
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10
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Reljic D, Eichhorn A, Herrmann HJ, Neurath MF, Zopf Y. Very Low-Volume, High-Intensity Interval Training Mitigates Negative Health Impacts of COVID-19 Pandemic-Induced Physical Inactivity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12308. [PMID: 36231609 PMCID: PMC9565952 DOI: 10.3390/ijerph191912308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/17/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Initially, we aimed to investigate the impact of a one-year worksite low-volume, high-intensity interval training (LOW-HIIT) on cardiometabolic health in 114 sedentary office workers. Due to the COVID-19 pandemic outbreak, LOW-HIIT was discontinued after 6 months and participants were followed up for 6 months to analyze physical activity/exercise behavior and outcome changes during lockdown. Health examinations, including cardiopulmonary exercise testing and the assessment of cardiometabolic markers were performed baseline (T-1), after 6 months (T-2, termination of worksite LOW-HIIT) and 12 months (T-3, follow-up). Cycle ergometer LOW-HIIT (5 × 1 min at 85-95% HRmax) was performed 2×/week. For follow-up analyses, participants were classified into three groups: HIIT-group (continued home-based LOW-HIIT), EX-group (continued other home-based exercises), and NO-EX-group (discontinued LOW-HIIT/exercise). At T-2, VO2max (+1.5 mL/kg/min, p = 0.002), mean arterial blood pressure (MAB, -4 mmHg, p < 0.001), HbA1c (-0.2%, p = 0.005) and self-reported quality of life (QoL, +5 points, p < 0.001) were improved. At T-3, HIIT-group maintained VO2max and QoL and further improved MAB. EX-group maintained MAB and QoL but experienced a VO2max decrease. In NON-EX, VO2max, MAB and QoL deteriorated. We conclude that LOW-HIIT can be considered a promising option to improve cardiometabolic health in real-life conditions and to mitigate physical inactivity-related negative health impacts during lockdowns.
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Affiliation(s)
- Dejan Reljic
- Hector-Center for Nutrition, Exercise and Sports, Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Annalena Eichhorn
- Hector-Center for Nutrition, Exercise and Sports, Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Hans J. Herrmann
- Hector-Center for Nutrition, Exercise and Sports, Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Markus F. Neurath
- German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Yurdagül Zopf
- Hector-Center for Nutrition, Exercise and Sports, Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
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11
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Hedge ET, Hughson RL. Longitudinal assessment of cardiorespiratory fitness and body mass of young healthy adults during COVID-19 pandemic. J Appl Physiol (1985) 2022; 133:622-628. [PMID: 35916663 PMCID: PMC9448336 DOI: 10.1152/japplphysiol.00253.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/06/2022] [Accepted: 07/26/2022] [Indexed: 11/22/2022] Open
Abstract
Physical activity was reduced during the COVID-19 pandemic, especially when lockdowns were mandated; however, little is known about the impact of these lifestyle changes on objective measures of cardiorespiratory fitness. To address this knowledge gap, we evaluated the cardiorespiratory fitness of 14 young healthy adults (4 women, age: 27 ± 6 yr) just before the pandemic and after ∼1 yr of public health measures being in place. During fitness assessments, participants performed submaximal pseudorandom cycling exercise to assess cardiorespiratory kinetics, and a 25 W·min-1 ramp-incremental cycling test to determine peak oxygen uptake (V̇o2). Cluster analysis identified two subgroups of participants: those who had reduced peak V̇o2 at the 1-yr follow-up (-0.50 ± 0.17 L·min-1) and those whose peak V̇o2 was maintained (0.00 ± 0.10 L·min-1). Participants with reduced peak V̇o2 also exhibited slower heart rate kinetics (interaction: P = 0.01), reduced peak O2 pulse (interaction: P < 0.001), and lower peak work rate (interaction: P < 0.001) after 1 yr of the pandemic, whereas these variables were unchanged in the group of participants who maintained peak V̇o2. Regardless of changes in peak V̇o2, both subgroups of participants gained body mass (main effect: P = 0.002), which was negatively correlated with participants' level of self-reported physical activity level at the follow-up assessment (mass: ρ = -0.59, P = 0.03) These findings suggest that some young healthy individuals lost cardiorespiratory fitness during the pandemic, whereas others gained weight, but both changes could potentially increase the risk of adverse health outcomes and disease later in life if left unaddressed.NEW & NOTEWORTHY Some young healthy adults experienced cardiovascular deconditioning during the COVID-19 pandemic, with measurable reductions in cardiorespiratory fitness, whereas others experienced no change in fitness but gained body mass, which was related to self-reported physical activity during the pandemic.
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Affiliation(s)
- Eric T Hedge
- Schlegel-University of Waterloo Research Institute for Aging, Waterloo, Ontario, Canada
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Richard L Hughson
- Schlegel-University of Waterloo Research Institute for Aging, Waterloo, Ontario, Canada
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12
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Robin A, Wang L, Custaud MA, Liu J, Yuan M, Li Z, Lloret JC, Liu S, Dai X, Zhang J, Lv K, Li W, Gauquelin-Koch G, Wang H, Li K, Li X, Qu L, Navasiolava N, Li Y. Running vs. resistance exercise to counteract deconditioning induced by 90-day head-down bedrest. Front Physiol 2022; 13:902983. [PMID: 36117704 PMCID: PMC9473647 DOI: 10.3389/fphys.2022.902983] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/29/2022] [Indexed: 11/13/2022] Open
Abstract
Spaceflight is associated with enhanced inactivity, resulting in muscular and cardiovascular deconditioning. Although physical exercise is commonly used as a countermeasure, separate applications of running and resistive exercise modalities have never been directly compared during long-term bedrest. This study aimed to compare the effectiveness of two exercise countermeasure programs, running and resistance training, applied separately, for counteracting cardiovascular deconditioning induced by 90-day head-down bedrest (HDBR). Maximal oxygen uptake (V˙O2max), orthostatic tolerance, continuous ECG and blood pressure (BP), body composition, and leg circumferences were measured in the control group (CON: n = 8), running exercise group (RUN: n = 7), and resistive exercise group (RES: n = 7). After HDBR, the decrease in V˙O2max was prevented by RUN countermeasure and limited by RES countermeasure (−26% in CON p < 0.05, −15% in RES p < 0.05, and −4% in RUN ns). Subjects demonstrated surprisingly modest orthostatic tolerance decrease for different groups, including controls. Lean mass loss was limited by RES and RUN protocols (−10% in CON vs. −5% to 6% in RES and RUN). Both countermeasures prevented the loss in thigh circumference (−7% in CON p < 0.05, −2% in RES ns, and −0.6% in RUN ns) and limited loss in calf circumference (−10% in CON vs. −7% in RES vs. −5% in RUN). Day–night variations in systolic BP were preserved during HDBR. Decrease in V˙O2max positively correlated with decrease in thigh (r = 0.54 and p = 0.009) and calf (r = 0.52 and p = 0.012) circumferences. During this 90-day strict HDBR, running exercise successfully preserved V˙O2max, and resistance exercise limited its decline. Both countermeasures limited loss in global lean mass and leg circumferences. The V˙O2max reduction seems to be conditioned more by muscular than by cardiovascular parameters.
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Affiliation(s)
- Adrien Robin
- Univ Angers, CHU Angers, CRC, INSERM, CNRS, MITOVASC, Equipe CarMe, SFR ICAT, Angers, France
| | - Linjie Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Marc-Antoine Custaud
- Univ Angers, CHU Angers, CRC, INSERM, CNRS, MITOVASC, Equipe CarMe, SFR ICAT, Angers, France
| | - Jiexin Liu
- Beijing Tiantan Hospital, Medical Capital University, Beijing, China
| | - Min Yuan
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Zhili Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | | | - Shujuan Liu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaoqian Dai
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Jianfeng Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Ke Lv
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Wenjiong Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | | | - Huijuan Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Kai Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaotao Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Lina Qu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Nastassia Navasiolava
- Univ Angers, CHU Angers, CRC, INSERM, CNRS, MITOVASC, Equipe CarMe, SFR ICAT, Angers, France
- *Correspondence: Nastassia Navasiolava, ; Yinghui Li,
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
- *Correspondence: Nastassia Navasiolava, ; Yinghui Li,
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13
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Hedge ET, Patterson CA, Mastrandrea CJ, Sonjak V, Hajj-Boutros G, Faust A, Morais JA, Hughson RL. Implementation of exercise countermeasures during spaceflight and microgravity analogue studies: Developing countermeasure protocols for bedrest in older adults (BROA). Front Physiol 2022; 13:928313. [PMID: 36017336 PMCID: PMC9395735 DOI: 10.3389/fphys.2022.928313] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/27/2022] [Indexed: 12/18/2022] Open
Abstract
Significant progress has been made in the development of countermeasures to attenuate the negative consequences of prolonged exposure to microgravity on astronauts’ bodies. Deconditioning of several organ systems during flight includes losses to cardiorespiratory fitness, muscle mass, bone density and strength. Similar deconditioning also occurs during prolonged bedrest; any protracted time immobile or inactive, especially for unwell older adults (e.g., confined to hospital beds), can lead to similar detrimental health consequences. Due to limitations in physiological research in space, the six-degree head-down tilt bedrest protocol was developed as ground-based analogue to spaceflight. A variety of exercise countermeasures have been tested as interventions to limit detrimental changes and physiological deconditioning of the musculoskeletal and cardiovascular systems. The Canadian Institutes of Health Research and the Canadian Space Agency recently provided funding for research focused on Understanding the Health Impact of Inactivity to study the efficacy of exercise countermeasures in a 14-day randomized clinical trial of six-degree head-down tilt bedrest study in older adults aged 55–65 years old (BROA). Here we will describe the development of a multi-modality countermeasure protocol for the BROA campaign that includes upper- and lower-body resistance exercise and head-down tilt cycle ergometry (high-intensity interval and continuous aerobic exercise training). We provide reasoning for the choice of these modalities following review of the latest available information on exercise as a countermeasure for inactivity and spaceflight-related deconditioning. In summary, this paper sets out to review up-to-date exercise countermeasure research from spaceflight and head-down bedrest studies, whilst providing support for the proposed research countermeasure protocols developed for the bedrest study in older adults.
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Affiliation(s)
- Eric T. Hedge
- Schlegel-University of Waterloo Research Institute for Aging, Waterloo, ON, Canada
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON, Canada
| | | | | | - Vita Sonjak
- Research Institute of McGill University Health Centre, McGill University, Montréal, QC, Canada
| | - Guy Hajj-Boutros
- Research Institute of McGill University Health Centre, McGill University, Montréal, QC, Canada
| | - Andréa Faust
- Research Institute of McGill University Health Centre, McGill University, Montréal, QC, Canada
| | - José A. Morais
- Research Institute of McGill University Health Centre, McGill University, Montréal, QC, Canada
- Division of Geriatric Medicine, McGill University Health Centre, McGill University, Montréal, QC, Canada
| | - Richard L. Hughson
- Schlegel-University of Waterloo Research Institute for Aging, Waterloo, ON, Canada
- *Correspondence: Richard L. Hughson,
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14
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Bailly M, Pélissier L, Coudeyre E, Evrard B, Bingula R, Rochette C, Mériade L, Blavignac C, Fournier AC, Bignon YJ, Rannou F, Dutheil F, Thivel D, Duclos M. Systematic Review of COVID-19-Related Physical Activity-Based Rehabilitations: Benefits to Be Confirmed by More Robust Methodological Approaches. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159025. [PMID: 35897400 PMCID: PMC9331032 DOI: 10.3390/ijerph19159025] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
The first emergency was to receive and treat COVID-19 patients in their acute phase; today, there is a clear need to propose appropriate post-acute rehabilitation programs. The aim of this research was to systematically review the effects of physical activity programs in the recovery of post-COVID-19 patients. The literature search followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines, was registered in the PROSPERO database (CRD42022289219), and was conducted between August and December 2021. A total of 35 studies out of the 1528 initially identified were finally included in the analysis. The systematic review clearly showed the health benefits of rehabilitation including physical activity in post-COVID-19 recovery, regardless of exercise modalities. These positive results were even observed using minor muscle re-mobilization for severe cases (i.e., postural changes, few steps—2 times/day) or using low volumes of exercise for mild-to-moderate cases (i.e., 120 min/week). A total of 97% of the 29 studies that performed statistical analyses demonstrated a significant increase in at least one parameter of functional capacity, and 96% of the 26 studies that statistically investigated the effects on the quality of life, mental health, and general state reported improvements. Yet, most of the studies were retrospective, uncontrolled, and enrolled aged people with comorbidities presented in severe forms of COVID-19. Physical activity programs, in addition to their high heterogeneity, remained poorly described in 83% of the studies and were part of a multidisciplinary program for 89% of the studies. Despite promising results, there is today a real need for prospective well-designed studies specifically assessing the effects of physical activity. In addition, it might appear relevant to propose standardized programs further considering the main characteristics of patients such as age, comorbidities, or the severity of COVID-19.
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Affiliation(s)
- Mélina Bailly
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
| | - Léna Pélissier
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
- Correspondence:
| | - Emmanuel Coudeyre
- Service de Médecine Physique et de Réadaptation, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Bertrand Evrard
- Service d’Immunologie, Centre Hospitalier Universitaire (CHU) Gabriel-Montpied, 63000 Clermont-Ferrand, France;
- Micro-Environnement CellulaiRE, Immunomodulation et Nutrition (ECREIN), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche (UMR) 1019 Unité de Nutrition Humaine (UNH), Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Rea Bingula
- Micro-Environnement CellulaiRE, Immunomodulation et Nutrition (ECREIN), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche (UMR) 1019 Unité de Nutrition Humaine (UNH), Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Corinne Rochette
- Health and Territory Chair, Université Clermont Auvergne, CleRMa, 63000 Clermont-Ferrand, France; (C.R.); (L.M.)
| | - Laurent Mériade
- Health and Territory Chair, Université Clermont Auvergne, CleRMa, 63000 Clermont-Ferrand, France; (C.R.); (L.M.)
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Anne-Cécile Fournier
- Cluster Auvergne-Rhône-Alpes Innovation Innovatherm, 63000 Clermont-Ferrand, France;
| | - Yves-Jean Bignon
- U1240 Imagerie Moléculaire et Stratégies Théranostiques, Institut National de la Santé et de la Recherche Médicale (INSERM), Université Clermont Auvergne, 63000 Clermont Ferrand, France;
- Département d’Oncogénétique, Centre Jean Perrin, 63011 Clermont-Ferrand, France
| | - Fabrice Rannou
- Service de Médecine du Sport et des Explorations Fonctionnelles, Centre Hospitalier Universitaire (CHU) de Clermont-Ferrand, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre de Recherche en Nutrition Humaine (CRNH) Auvergne, Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (F.R.); (M.D.)
| | - Frédéric Dutheil
- Preventive and Occupational Medicine, LaPSCo, Physiological and Psychosocial Stress, Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Witty Fit, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - David Thivel
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
| | - Martine Duclos
- Service de Médecine du Sport et des Explorations Fonctionnelles, Centre Hospitalier Universitaire (CHU) de Clermont-Ferrand, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre de Recherche en Nutrition Humaine (CRNH) Auvergne, Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (F.R.); (M.D.)
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15
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Baldassarre G, Zuccarelli L, Manferdelli G, Manfredini V, Marzorati M, Pilotto A, Porcelli S, Rasica L, Šimunič B, Pišot R, Narici M, Grassi B. Decrease in work rate in order to keep a constant heart rate: biomarker of exercise intolerance following a 10-day bed rest. J Appl Physiol (1985) 2022; 132:1569-1579. [PMID: 35511721 DOI: 10.1152/japplphysiol.00052.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aerobic exercise prescription is often set at specific heart rate (HR) values. Previous studies demonstrated that during exercise carried out at a HR slightly above that corresponding to the gas exchange threshold (GET), work rate (WR) has to decrease in order to maintain HR constant. We hypothesized a greater WR decrease at a fixed HR following simulated microgravity/inactivity (bed rest, BR). Ten male volunteers (23±5 yr) were tested before (PRE) and after (POST) a 10-day horizontal BR, and performed on a cycle ergometer: a) incremental exercise; b) 15-min HRCLAMPED exercise, in which WR was continuously adjusted to maintain a constant HR, corresponding to that at 120% of GET determined in PRE; c) two moderate-intensity constant WR (MOD) exercises. Breath-by-breath VO2, HR and other variables were determined. After BR, VO2peak and GET significantly decreased, by about 10%. During HRCLAMPED (145±11 b∙min-1), the decrease in WR needed to maintain a constant HR was greater in POST vs. PRE (-39±10 vs. -29±14%, p<0.01). In 6 subjects the decreased WR switched from the heavy- to the moderate-intensity domain. The decrease in WR during HRCLAMPED, in PRE vs. POST, was significantly correlated with the VO2peak decrease (R2=0.52; p=0.02). A greater amplitude of the slow component of the HR kinetics was observed during MOD following BR. Exercise at a fixed HR is not associated with a specific WR or WR domain; the problem, affecting exercise evaluation and prescription, is greater following BR. The WR decrease during HRCLAMPED is a biomarker of exercise intolerance following BR.
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Affiliation(s)
| | | | - Giorgio Manferdelli
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | | | - Mauro Marzorati
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Andrea Pilotto
- Department of Medicine, University of Udine, Udine, Italy.,Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Simone Porcelli
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy.,Department of Molecular Medicine, University of Pavia, Italy
| | - Letizia Rasica
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Boštjan Šimunič
- Institute for Kinesiology Research, Science and Research Center, Koper, Slovenia
| | - Rado Pišot
- Institute for Kinesiology Research, Science and Research Center, Koper, Slovenia
| | - Marco Narici
- Department of Biomedical Sciences, University of Padova, Italy
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy
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16
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Capin JJ, Bade MJ, Jennings JM, Snyder-Mackler L, Stevens-Lapsley JE. Total Knee Arthroplasty Assessments Should Include Strength and Performance-Based Functional Tests to Complement Range-of-Motion and Patient-Reported Outcome Measures. Phys Ther 2022; 102:6556168. [PMID: 35358318 PMCID: PMC9393064 DOI: 10.1093/ptj/pzac033] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/29/2021] [Accepted: 02/02/2022] [Indexed: 11/14/2022]
Abstract
Range of motion (ROM) and pain often define successful recovery after total knee arthroplasty (TKA), but these routine clinical outcomes correlate poorly or not at all to functional capacity after TKA. The purpose of this Perspective is to underscore the importance of muscle strength and performance-based functional tests in addition to knee ROM and patient-reported outcome (PRO) measures to evaluate outcomes after TKA. Specifically: (1) muscle strength is the rate-limiting step for recovery of function after TKA; (2) progressive rehabilitation targeting early quadriceps muscle strengthening improves outcomes and does not compromise ROM after TKA; (3) ROM and PROs fail to fully capture functional limitations after TKA; and (4) performance-based functional tests are critical to evaluate function objectively after TKA. This Perspective also addresses studies that question the need for or benefit of physical therapy after TKA because their conclusions focus only on ROM and PRO measures. Future research is needed to determine the optimal timing, delivery, intensity, and content of physical therapy.
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Affiliation(s)
- Jacob J Capin
- Physical Therapy Program, Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, Colorado, USA,Eastern Colorado Veterans Affairs Geriatric Research Education and Clinical Center (GRECC), Aurora, Colorado, USA,Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin, USA
| | - Michael J Bade
- Physical Therapy Program, Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, Colorado, USA,Eastern Colorado Veterans Affairs Geriatric Research Education and Clinical Center (GRECC), Aurora, Colorado, USA
| | - Jason M Jennings
- Colorado Joint Replacement, Porter Adventist Hospital, Denver, Colorado, USA,Department of Mechanical and Materials Engineering, University of Denver, Denver, Colorado, USA
| | - Lynn Snyder-Mackler
- Department of Physical Therapy, Department of Biomedical Engineering, and Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware, USA
| | - Jennifer E Stevens-Lapsley
- Physical Therapy Program, Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, Colorado, USA,Eastern Colorado Veterans Affairs Geriatric Research Education and Clinical Center (GRECC), Aurora, Colorado, USA,Address all correspondence to Dr. Stevens-Lapsley at ; Follow the author(s): @JacobCapin, @PhysioBade, @DocLSmack, @JSLapsley
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17
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Luciano F, Cenacchi V, Ruggiero L, Pavei G. From the Lab to Real Life: Monitoring Cardiorespiratory Fitness during the COVID-19 Pandemic through Wearable Devices. An Exploratory Longitudinal Study on Healthy Participants. Healthcare (Basel) 2022; 10:healthcare10040634. [PMID: 35455812 PMCID: PMC9028944 DOI: 10.3390/healthcare10040634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 11/21/2022] Open
Abstract
COVID-19 containment measures hampered population cardiorespiratory fitness (which can be quantified as peak oxygen consumption (V.O2peak)) and the possibility to assess it using laboratory-based techniques. Although it is useful to ascertain the V.O2peak recovery after lockdowns, the community and most scientific institutions were unable to evaluate it. Wearable devices may provide the opportunity to estimate cardiorespiratory fitness outside of the laboratory, without breaking self-isolation; herein, we explore the feasibility of this approach. Fifteen healthy participants were tested every 2 weeks for 10 weeks during a reduction of containment measures after a strict lockdown. Physical activity levels were measured using the International Physical Activity Questionnaire-Short Form (IPAQ-SF). V.O2peak was estimated through a previously validated test based on the speed of a 60 m sprint run, the baseline-to-peak heart rate (HR) variation, and the velocity of HR decay after the sprint, and measured through a wearable HR monitor. Participants increased physical activity from the end of lockdown (1833 [917–2594] MET-min/week; median [1st quartile–3rd quartile]) until the end of follow-up (2730 [1325–3380] MET-min/week). The estimated V.O2peak increased by 0.24 ± 0.19 mL/(min*kg*week) (regression coefficient ± standard error). Based on previous knowledge on the impact of inactivity on V.O2peak, our study indicates that a 10-week period of reducing the stringency of containment measures may not be sufficient to counteract the detrimental effects of the preceding lockdown.
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Affiliation(s)
- Francesco Luciano
- Department of Pathophysiology and Transplantation, University of Milan, 20133 Milan, Italy; (L.R.); (G.P.)
- Correspondence: ; Tel.: +39-02-50315441
| | | | - Luca Ruggiero
- Department of Pathophysiology and Transplantation, University of Milan, 20133 Milan, Italy; (L.R.); (G.P.)
| | - Gaspare Pavei
- Department of Pathophysiology and Transplantation, University of Milan, 20133 Milan, Italy; (L.R.); (G.P.)
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18
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Serviente C, Decker ST, Layec G. From heart to muscle: pathophysiological mechanisms underlying long-term physical sequelae from SARS-CoV-2 infection. J Appl Physiol (1985) 2022; 132:581-592. [PMID: 35019775 PMCID: PMC8873035 DOI: 10.1152/japplphysiol.00734.2021] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 12/26/2022] Open
Abstract
The long-term sequelae of the coronavirus disease 2019 (COVID-19) are multifaceted and, besides the lungs, impact other organs and tissues, even in cases of mild infection. Along with commonly reported symptoms such as fatigue and dyspnea, a significant proportion of those with prior COVID-19 infection also exhibit signs of cardiac damage, muscle weakness, and ultimately, poor exercise tolerance. This review provides an overview of evidence indicating cardiac impairments and persistent endothelial dysfunction in the peripheral vasculature of those previously infected with COVID-19, irrespective of the severity of the acute phase of illness. In addition, V̇o2peak appears to be lower in convalescent patients, which may stem, in part, from alterations in O2 transport such as impaired diffusional O2 conductance. Together, the persistent multi-organ dysfunction induced by COVID-19 may set previously healthy individuals on a trajectory towards frailty and disease. Given the large proportion of individuals recovering from COVID-19, it is critically important to better understand the physical sequelae of COVID-19, the underlying biological mechanisms contributing to these outcomes, and the long-term effects on future disease risk. This review highlights relevant literature on the pathophysiology post-COVID-19 infection, gaps in the literature, and emphasizes the need for the development of evidence-based rehabilitation guidelines.
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Affiliation(s)
- Corinna Serviente
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
- Institute for Applied Life Sciences, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Stephen T Decker
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Gwenael Layec
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
- Institute for Applied Life Sciences, University of Massachusetts Amherst, Amherst, Massachusetts
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19
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Tabata A, Yabe H, Mitake Y, Shirai T, Yoshida M, Kurosu R, Kawamura K. Effectiveness and Safety of Rehabilitation for Pediatric Patients with Nephrotic Syndrome in the Acute Phase: A Case Study. Prog Rehabil Med 2022; 7:20220040. [PMID: 35991772 PMCID: PMC9359940 DOI: 10.2490/prm.20220040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 07/26/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Aki Tabata
- Department of Rehabilitation, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Hiroki Yabe
- Department of Physical Therapy, School of Rehabilitation Sciences, Seirei Christopher University, Hamamatsu, Japan
| | - Yuya Mitake
- Department of Rehabilitation, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Tomohiro Shirai
- Department of Rehabilitation, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Marina Yoshida
- Department of Pediatric Nephrology, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Rie Kurosu
- Department of Pediatric Nephrology, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Ken Kawamura
- Department of Pediatric Nephrology, Seirei Sakura Citizen Hospital, Chiba, Japan
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20
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Knight M, Vancheeswaran R. Post-acute covid-19 in primary care. BMJ 2021; 375:n3080. [PMID: 34965928 DOI: 10.1136/bmj.n3080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Matthew Knight
- Department of Respiratory Medicine, West Hertfordshire Hospitals NHS Trust, UK
| | - Rama Vancheeswaran
- Department of Respiratory Medicine, West Hertfordshire Hospitals NHS Trust, UK
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21
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Salvadego D, Grassi B, Keramidas ME, Eiken O, McDonnell AC, Mekjavic IB. Heterogeneity of human adaptations to bed rest and hypoxia: a retrospective analysis within the skeletal muscle oxidative function. Am J Physiol Regul Integr Comp Physiol 2021; 321:R813-R822. [PMID: 34585615 DOI: 10.1152/ajpregu.00053.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This retrospective study was designed to analyze the interindividual variability in the responses of different variables characterizing the skeletal muscle oxidative function to normoxic (N-BR) and hypoxic (H-BR) bed rests and to a hypoxic ambulatory confinement (H-AMB) of 10 and 21 days. We also assessed whether and how the addition of hypoxia to bed rest might influence the heterogeneity of the responses. In vivo measurements of O2 uptake and muscle fractional O2 extraction were carried out during an incremental one-leg knee-extension exercise. Mitochondrial respiration was assessed in permeabilized muscle fibers. A total of 17 subjects were included in this analysis. This analysis revealed a similar variability among subjects in the alterations induced by N-BR and H-BR both in peak O2 uptake (SD: 4.1% and 3.3% after 10 days; 4.5% and 8.1% after 21 days, respectively) and peak muscle fractional O2 extraction (SD: 5.9% and 7.3% after 10 days; 6.5% and 7.3% after 21 days), independently from the duration of the exposure. The individual changes measured in these variables were significantly related (r = 0.66, P = 0.004 after N-BR; r = 0.61, P = 0.009 after H-BR). Mitochondrial respiration showed a large variability of response after both N-BR (SD: 25.0% and 15.7% after 10 and 21 days) and H-BR (SD: 13.0% and 19.8% after 10 and 21 days); no correlation was found between N-BR and H-BR changes. When added to bed rest, hypoxia altered the individual adaptations within the mitochondria but not those intrinsic to the muscle oxidative function in vivo, both after the short- and medium-term exposures.
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Affiliation(s)
- Desy Salvadego
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy
| | - Michail E Keramidas
- Department of Environmental Physiology, Swedish Aerospace Physiology Centre, Royal Institute of Technology, Stockholm, Sweden
| | - Ola Eiken
- Department of Environmental Physiology, Swedish Aerospace Physiology Centre, Royal Institute of Technology, Stockholm, Sweden
| | - Adam C McDonnell
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Igor B Mekjavic
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia.,Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
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22
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Rasmussen IE, Foged F, Bjørn Budde J, Rasmussen RS, Rasmussen V, Lyngbæk M, Jønck S, Krogh-Madsen R, Lindegaard B, Ried-Larsen M, Jørgensen PG, Lund MAV, Køber L, Vejlstrup N, Pedersen BK, Berg RMG, Christensen RH. Protective potential of high-intensity interval training on cardiac structure and function after COVID-19: protocol and statistical analysis plan for an investigator-blinded randomised controlled trial. BMJ Open 2021; 11:e048281. [PMID: 34794987 PMCID: PMC8602927 DOI: 10.1136/bmjopen-2020-048281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 10/13/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION COVID-19 is associated with a marked systemic inflammatory response with concomitant cardiac injury and remodelling, but it is currently unknown whether the latter is reversible. Given that high-intensity interval training (HIIT) is a powerful stimulus to improve cardiorespiratory fitness while also eliciting marked anti-inflammatory effects, it may be an important countermeasure of reducing cardiopulmonary morbidity following COVID-19. METHODS AND ANALYSIS 40 COVID-19 survivors who have been discharged from hospital will be included in this investigator-blinded randomised study with a 12-week HIIT intervention. Patients will be 1:1 block-randomised by sex to either a supervised HIIT exercise group or standard care (control group). The main hypothesis is that a 12-week HIIT scheme is a safe way to improve loss of cardiac mass and associated cardiorespiratory fitness, despite hypothesised limited HIIT-induced changes in conventional lung function indices per se. Ultimately, we hypothesise that the HIIT scheme will reduce post-COVID-19 symptoms and improve quality of life. ETHICS AND DISSEMINATION This study is approved by the Scientific Ethical Committee at the Capital Region of Denmark (H-20033733, including amendments 75068 and 75799) and registered at ClinicalTrials.gov (NCT04647734, pre-results). The findings will be published in a peer-reviewed journal, including cases of positive, negative and inconclusive results.Trial registration number NCT04549337.
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Affiliation(s)
- Iben Elmerdahl Rasmussen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Frederik Foged
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Josephine Bjørn Budde
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rasmus Syberg Rasmussen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Villads Rasmussen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Mark Lyngbæk
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Simon Jønck
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Rikke Krogh-Madsen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Infectious Diseases, Copenhagen University Hospital - Hvidovre Hospital, Hvidovre, Denmark
| | - Birgitte Lindegaard
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Pulmonary Medicine and Infectious Diseases, Copenhagen University Hospital - North Zealand Hospital, Hillerød, Denmark
| | - Mathias Ried-Larsen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Peter Godsk Jørgensen
- Department of Cardiology, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
| | - Morten Asp Vonsild Lund
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
| | - Niels Vejlstrup
- Department of Cardiology, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
| | - Bente Klarlund Pedersen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Ronan M G Berg
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
- Department of Clinical Physiology and Nuclear Medicine, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
| | - Regitse Højgaard Christensen
- Centre for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Cardiology, University Hospital Copenhagen - Rigshospitalet, Copenhagen, Denmark
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23
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Zuccarelli L, Baldassarre G, Magnesa B, Degano C, Comelli M, Gasparini M, Manferdelli G, Marzorati M, Mavelli I, Pilotto A, Porcelli S, Rasica L, Šimunič B, Pišot R, Narici M, Grassi B. Peripheral impairments of oxidative metabolism after a 10-day bed rest are upstream of mitochondrial respiration. J Physiol 2021; 599:4813-4829. [PMID: 34505290 PMCID: PMC9293208 DOI: 10.1113/jp281800] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 09/08/2021] [Indexed: 11/20/2022] Open
Abstract
Abstract In order to identify peripheral biomarkers of impaired oxidative metabolism during exercise following a 10‐day bed rest, 10 males performed an incremental exercise (to determine peak pulmonary V̇O2 (V̇O2p)) and moderate‐intensity exercises, before (PRE) and after (POST) bed rest. Blood flow response was evaluated in the common femoral artery by Eco‐Doppler during 1 min of passive leg movements (PLM). The intramuscular matching between O2 delivery and O2 utilization was evaluated by near‐infrared spectroscopy (NIRS). Mitochondrial respiration was evaluated ex vivo by high‐resolution respirometry in isolated muscle fibres, and in vivo by NIRS by the evaluation of skeletal muscle V̇O2 (V̇O2m) recovery kinetics. Resting V̇O2m was estimated by NIRS. Peak V̇O2p was lower in POST vs. PRE. The area under the blood flow vs. time curve during PLM was smaller (P = 0.03) in POST (274 ± 233 mL) vs. PRE (427 ± 291). An increased (P = 0.03) overshoot of muscle deoxygenation during a metabolic transition was identified in POST. Skeletal muscle citrate synthase activity was not different (P = 0.11) in POST (131 ± 16 nmol min–1 mg–1) vs. PRE (138 ± 19). Maximal ADP‐stimulated mitochondrial respiration (66 ± 18 pmol s–1 mg–1 (POST) vs. 72 ± 14 (PRE), P = 0.41) was not affected by bed rest. Apparent Km for ADP sensitivity of mitochondrial respiration was reduced in POST vs. PRE (P = 0.04). The V̇O2m recovery time constant was not different (P = 0.79) in POST (22 ± 6 s) vs. PRE (22 ± 6). Resting V̇O2m was reduced by 25% in POST vs. PRE (P = 0.006). Microvascular‐endothelial function was impaired following a 10‐day bed rest, whereas mitochondrial mass and function (both in vivo and ex vivo) were unaffected or slightly enhanced. Key points Ten days of horizontal bed rest impaired in vivo oxidative function during exercise. Microvascular impairments were identified by different methods. Mitochondrial mass and mitochondrial function (evaluated both in vivo and ex vivo) were unchanged or even improved (i.e. enhanced mitochondrial sensitivity to submaximal [ADP]). Resting muscle oxygen uptake was significantly lower following bed rest, suggesting that muscle catabolic processes induced by bed rest/inactivity are less energy‐consuming than anabolic ones.
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Affiliation(s)
| | | | | | | | - Marina Comelli
- Department of Medicine, University of Udine, Udine, Italy
| | | | - Giorgio Manferdelli
- Institute of Biomedical Technologies, National Research Council, Milan, Italy
| | - Mauro Marzorati
- Institute of Biomedical Technologies, National Research Council, Milan, Italy
| | - Irene Mavelli
- Department of Medicine, University of Udine, Udine, Italy
| | - Andrea Pilotto
- Department of Medicine, University of Udine, Udine, Italy.,Institute of Biomedical Technologies, National Research Council, Milan, Italy
| | - Simone Porcelli
- Institute of Biomedical Technologies, National Research Council, Milan, Italy.,Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Letizia Rasica
- Institute of Biomedical Technologies, National Research Council, Milan, Italy
| | - Boštjan Šimunič
- Institute of Kinesiology Research, Science and Research Centre, Koper, Slovenia
| | - Rado Pišot
- Institute of Kinesiology Research, Science and Research Centre, Koper, Slovenia
| | - Marco Narici
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy
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24
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White PD, Etherington J. Adverse outcomes in trials of graded exercise therapy for adult patients with chronic fatigue syndrome. J Psychosom Res 2021; 147:110533. [PMID: 34091377 DOI: 10.1016/j.jpsychores.2021.110533] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Graded exercise therapy (GET) is an effective treatment for chronic fatigue syndrome (CFS), but concerns have been raised about its safety. Two randomised controlled trials have not supported these concerns. We further assessed safety outcomes in all ten published trials of GET for CFS. METHODS We undertook meta-analyses of three outcomes: Self-ratings of Clinical Global Impression (CGI) change scores of 6 or 7 ("much worse" or "very much worse"), numbers of participants withdrawing from treatments, and numbers of participants dropping out of trial follow up. We provide risk ratios (95% confidence intervals (CI)), comparing GET with control interventions. RESULTS The 10 trials involved 1279 participants. CGI scores of 6 or 7 were reported by 14/333 (4%) participants after GET and 26/334 (8%) participants after control interventions (RR (CI): 0.62 (0.32, 1.17)). Withdrawals from treatment occurred in 64/535 (12%) participants after GET and 53/534 (10%) participants after control interventions (RR (CI):1.21 (0.86, 1.69)). Drop-outs from trial follow up occurred in 74/679 (11%) participants after GET and 41/600 (7%) participants after control interventions (RR (CI): 1.51 (1.03, 2.22)). The certainty of this evidence was rated low by GRADE, due to imprecision. CONCLUSIONS There was no evidence of excess harm with graded exercise therapy by either self-rated deterioration or by withdrawing from GET, in comparison to control interventions. More GET participants dropped out of trial follow up in comparison to control interventions. Future research should ascertain the most effective and safest form of graded exercise therapy.
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Affiliation(s)
- P D White
- Wolfson Institute of Preventive Medicine, St Bartholomew's and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - J Etherington
- Pure Sports Medicine, 12 Finsbury Square, London, UK
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25
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Hama T, Morita N, Ushijima A, Ueno A, Iida T, Ikari Y, Kobayashi Y. Impact of bedrest on cardiovascular events and complications associated with temporary pacemakers in patients waiting for permanent pacemaker implantation. J Arrhythm 2021; 37:669-675. [PMID: 34141020 PMCID: PMC8207420 DOI: 10.1002/joa3.12534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Patients with a temporary pacemaker (TPM) for bradycardias are required to maintain bedrest until permanent pacemakers (PPMs) are implanted because of the development of Adams-Stokes syndrome, worsening heart failure, or complications associated with TPMs is anticipated. However, bedrest may be detrimental in patients because it leads to disuse syndrome. This study examined whether bedrest could decrease the incidence of cardiovascular events or complications associated with TPMs in patients waiting for PPM implantation. METHODS We conducted a retrospective cohort study on 88 patients who had emergency hospitalization for the treatment of bradycardias, and a TPM was inserted during the waiting period before PPM implantation. We divided patients into two groups according to whether they underwent bedrest (Bedrest Group) or not (Ambulation Group) during the period that patients were supported with TPM. We evaluated whether bedrest was a predictor of adverse events using a logistic regression analysis. RESULTS Adverse events occurred in 31 patients (35%). In the univariate analysis, there was no significant difference in the incidence of adverse events between the Bedrest and Ambulation Groups (39% vs. 29%). In the logistic regression analysis, bedrest was not a predictor of adverse events (odds ratio, 1.40; 95% confidence interval, 0.53-3.68, P = .497). CONCLUSIONS In patients with TPMs for bradyarrhythmias during the waiting period for PPM implantations, bedrest might not prevent adverse events, such as cardiovascular events and complications associated with TPMs.
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Affiliation(s)
- Tomoaki Hama
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
| | - Norishige Morita
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
| | - Akiko Ushijima
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
| | - Akira Ueno
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
| | - Takayuki Iida
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
| | - Yuji Ikari
- The Division of CardiologyDepartment of MedicineTokai University HospitalIseharaJapan
| | - Yoshinori Kobayashi
- The Division of CardiologyDepartment of MedicineTokai University Hachioji HospitalHachiojiJapan
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26
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Kramer A, Venegas-Carro M, Zange J, Sies W, Maffiuletti NA, Gruber M, Degens H, Moreno-Villanueva M, Mulder E. Daily 30-min exposure to artificial gravity during 60 days of bed rest does not maintain aerobic exercise capacity but mitigates some deteriorations of muscle function: results from the AGBRESA RCT. Eur J Appl Physiol 2021; 121:2015-2026. [PMID: 33811556 PMCID: PMC8192329 DOI: 10.1007/s00421-021-04673-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/28/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Spaceflight impairs physical capacity. Here we assessed the protective effect of artificial gravity (AG) on aerobic exercise capacity and muscle function during bed rest, a spaceflight analogue. METHODS 24 participants (33 ± 9 years, 175 ± 9 cm, 74 ± 10 kg, 8 women) were randomly allocated to one of three groups: continuous AG (cAG), intermittent AG (iAG) or control (CTRL). All participants were subjected to 60 days of six-degree head-down tilt bed rest, and subjects of the intervention groups completed 30 min of centrifugation per day: cAG continuously and iAG for 6 × 5 min, with an acceleration of 1g at the center of mass. Physical capacity was assessed before and after bed rest via maximal voluntary contractions, cycling spiroergometry, and countermovement jumps. RESULTS AG had no significant effect on aerobic exercise capacity, flexor muscle function and isometric knee extension strength or rate of force development (RFD). However, AG mitigated the effects of bed rest on jumping power (group * time interaction of the rmANOVA p < 0.001; iAG - 25%, cAG - 26%, CTRL - 33%), plantar flexion strength (group * time p = 0.003; iAG - 35%, cAG - 31%, CTRL - 48%) and plantar flexion RFD (group * time p = 0.020; iAG - 28%, cAG - 12%, CTRL - 40%). Women showed more pronounced losses than men in jumping power (p < 0.001) and knee extension strength (p = 0.010). CONCLUSION The AG protocols were not suitable to maintain aerobic exercise capacity, probably due to the very low cardiorespiratory demand of this intervention. However, they mitigated some losses in muscle function, potentially due to the low-intensity muscle contractions during centrifugation used to avoid presyncope.
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Affiliation(s)
- Andreas Kramer
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, 78457, Konstanz, Germany.
| | - María Venegas-Carro
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, 78457, Konstanz, Germany
| | - Jochen Zange
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Wolfram Sies
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | | | - Markus Gruber
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, 78457, Konstanz, Germany
| | - Hans Degens
- Department of Life Sciences, Manchester Metropolitan University, Manchester, UK.,Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania
| | - María Moreno-Villanueva
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, 78457, Konstanz, Germany
| | - Edwin Mulder
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
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Filgueira TO, Castoldi A, Santos LER, de Amorim GJ, de Sousa Fernandes MS, Anastácio WDLDN, Campos EZ, Santos TM, Souto FO. The Relevance of a Physical Active Lifestyle and Physical Fitness on Immune Defense: Mitigating Disease Burden, With Focus on COVID-19 Consequences. Front Immunol 2021; 12:587146. [PMID: 33613573 PMCID: PMC7892446 DOI: 10.3389/fimmu.2021.587146] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/13/2021] [Indexed: 12/15/2022] Open
Abstract
The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a fast spreading virus leading to the development of Coronavirus Disease-2019 (COVID-19). Severe and critical cases are characterized by damage to the respiratory system, endothelial inflammation, and multiple organ failure triggered by an excessive production of proinflammatory cytokines, culminating in the high number of deaths all over the world. Sedentarism induces worse, continuous, and progressive consequences to health. On the other hand, physical activity provides benefits to health and improves low-grade systemic inflammation. The aim of this review is to elucidate the effects of physical activity in physical fitness, immune defense, and its contribution to mitigate the severe inflammatory response mediated by SARS-CoV-2. Physical exercise is an effective therapeutic strategy to mitigate the consequences of SARS-CoV-2 infection. In this sense, studies have shown that acute physical exercise induces the production of myokines that are secreted in tissues and into the bloodstream, supporting its systemic modulatory effect. Therefore, maintaining physical activity influence balance the immune system and increases immune vigilance, and also might promote potent effects against the consequences of infectious diseases and chronic diseases associated with the development of severe forms of COVID-19. Protocols to maintain exercise practice are suggested and have been strongly established, such as home-based exercise (HBE) and outdoor-based exercise (OBE). In this regard, HBE might help to reduce levels of physical inactivity, bed rest, and sitting time, impacting on adherence to physical activity, promoting all the benefits related to exercise, and attracting patients in different stages of treatment for COVID-19. In parallel, OBE must improve health, but also prevent and mitigate COVID-19 severe outcomes in all populations. In conclusion, HBE or OBE models can be a potent strategy to mitigate the progress of infection, and a coadjutant therapy for COVID-19 at all ages and different chronic conditions.
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Affiliation(s)
| | - Angela Castoldi
- Keizo Asami Immunopathology Laboratory, Universidade Federal de Pernambuco, Recife, Brazil
| | - Lucas Eduardo R. Santos
- Pós Graduação em Educação Física, Universidade Federal de Pernambuco, Recife, Brazil
- Pós Graduação em Neuropsiquiatria e Ciências do Comportamento, Universidade Federal de Pernambuco, Recife, Brazil
| | - Geraldo José de Amorim
- Keizo Asami Immunopathology Laboratory, Universidade Federal de Pernambuco, Recife, Brazil
- Serviço de Nefrologia do Hospital das Clínicas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Matheus Santos de Sousa Fernandes
- Pós Graduação em Educação Física, Universidade Federal de Pernambuco, Recife, Brazil
- Pós Graduação em Neuropsiquiatria e Ciências do Comportamento, Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Tony Meireles Santos
- Pós Graduação em Educação Física, Universidade Federal de Pernambuco, Recife, Brazil
| | - Fabrício Oliveira Souto
- Keizo Asami Immunopathology Laboratory, Universidade Federal de Pernambuco, Recife, Brazil
- Núcleo de Ciências da Vida, Centro Acadêmico do Agreste, Universidade Federal de Pernambuco, Caruaru, Brazil
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López-Bueno R, Calatayud J, Andersen LL, Casaña J, Ezzatvar Y, Casajús JA, López-Sánchez GF, Smith L. Cardiorespiratory fitness in adolescents before and after the COVID-19 confinement: a prospective cohort study. Eur J Pediatr 2021; 180:2287-2293. [PMID: 33733288 PMCID: PMC7968551 DOI: 10.1007/s00431-021-04029-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/27/2022]
Abstract
Long periods of free-movement restrictions may negatively affect cardiorespiratory fitness and health. The present study investigated changes after the COVID-19 confinement in maximal oxygen intake (VO2 max) levels in a sample of 89 Spanish school children aged 12 and 14 years at baseline (49.8% girls). The 20-m shuttle run test served to estimate VO2 max before and after the COVID-19 confinement. Paired t-tests estimated an overall difference of - 0.5 ml.kg-1.min-1 (SD 0.3) (p = 0.12), whereas the highest significant reductions were observed for girls aged 14 years (- 1.5 ml.kg-1.min-1 (SD 0.6) (p < 0.05)). Boys aged 14 years showed a slight increase (0.4 ml.kg-1.min-1 (SD 0.5) (p = 0.44)), whereas boys aged 12 years presented an important decrease (- 1.2 ml.kg-1.min-1 (SD 0.7) (p = 0.14)). Healthy Fitness Zone (HFZ) levels also experienced a decrease of - 3.4% as regards baseline levels over the examined period. All the examined subgroups showed lower levels in relation to a normal VO2 max rate development, although girls aged 14 and boys aged 12 years accounted for the highest part.Conclusion: The results indicate that COVID-19 confinement might delay the normal development of VO2 max in adolescents. Strategies to tackle this concerning decline are warranted. What is Known: • First study analyzing cardiorespiratory fitness levels in teenagers after COVID-19 confinement. What is New: • Important delay in maximal oxygen intake identified in a sample of Spanish teenagers. • These results should be considered to develop strategies of a more active lifestyle in teenagers during and after confinements.
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Affiliation(s)
- Rubén López-Bueno
- Department of Physical Medicine and Nursing, University of Zaragoza, Zaragoza, Spain
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Joaquín Calatayud
- National Research Centre for the Working Environment, Copenhagen, Denmark
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | | | - José Casaña
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - Yasmín Ezzatvar
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | | | | | - Lee Smith
- Cambridge Centre for Sport and Exercise Science, Anglia Ruskin University, Cambridge, UK
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29
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Rabineau J, Hossein A, Landreani F, Haut B, Mulder E, Luchitskaya E, Tank J, Caiani EG, van de Borne P, Migeotte PF. Cardiovascular adaptation to simulated microgravity and countermeasure efficacy assessed by ballistocardiography and seismocardiography. Sci Rep 2020; 10:17694. [PMID: 33077727 PMCID: PMC7573608 DOI: 10.1038/s41598-020-74150-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
Head-down bed rest (HDBR) reproduces the cardiovascular effects of microgravity. We tested the hypothesis that regular high-intensity physical exercise (JUMP) could prevent this cardiovascular deconditioning, which could be detected using seismocardiography (SCG) and ballistocardiography (BCG). 23 healthy males were exposed to 60-day HDBR: 12 in a physical exercise group (JUMP), the others in a control group (CTRL). SCG and BCG were measured during supine controlled breathing protocols. From the linear and rotational SCG/BCG signals, the integral of kinetic energy ([Formula: see text]) was computed on each dimension over the cardiac cycle. At the end of HDBR, BCG rotational [Formula: see text] and SCG transversal [Formula: see text] decreased similarly for all participants (- 40% and - 44%, respectively, p < 0.05), and so did orthostatic tolerance (- 58%, p < 0.01). Resting heart rate decreased in JUMP (- 10%, p < 0.01), but not in CTRL. BCG linear [Formula: see text] decreased in CTRL (- 50%, p < 0.05), but not in JUMP. The changes in the systolic component of BCG linear iK were correlated to those in stroke volume and VO2 max (R = 0.44 and 0.47, respectively, p < 0.05). JUMP was less affected by cardiovascular deconditioning, which could be detected by BCG in agreement with standard markers of the cardiovascular condition. This shows the potential of BCG to easily monitor cardiac deconditioning.
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Affiliation(s)
- Jeremy Rabineau
- LPHYS, Université Libre de Bruxelles, Brussels, Belgium. .,TIPs, Université Libre de Bruxelles, Brussels, Belgium.
| | - Amin Hossein
- LPHYS, Université Libre de Bruxelles, Brussels, Belgium
| | - Federica Landreani
- Electronic, Information and Biomedical Engineering Department, Politecnico Di Milano, Milan, Italy
| | - Benoit Haut
- TIPs, Université Libre de Bruxelles, Brussels, Belgium
| | - Edwin Mulder
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Elena Luchitskaya
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Jens Tank
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Enrico G Caiani
- Electronic, Information and Biomedical Engineering Department, Politecnico Di Milano, Milan, Italy
| | - Philippe van de Borne
- Department of Cardiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
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van der Zwaard S, de Leeuw AW, Meerhoff LRA, Bodine SC, Knobbe A. Articles with impact: insights into 10 years of research with machine learning. J Appl Physiol (1985) 2020; 129:967-979. [PMID: 32790596 DOI: 10.1152/japplphysiol.00489.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Worldwide scientific output is growing faster and faster. Academics should not only publish much and fast, but also publish research with impact. The aim of this study is to use machine learning to investigate characteristics of articles that were published in the Journal of Applied Physiology between 2009 and 2018, and characterize high-impact articles. Article impact was assessed for 4,531 publications by three common impact metrics: the Altmetric Attention Scores, downloads, and citations. Additionally, a broad collection of (more than 200) characteristics was collected from the article's title, abstract, authors, keywords, publication, and article engagement. We constructed random forest (RF) regression models to predict article impact and articles with the highest impact (top-25% and top-10% for each impact metric), which were compared with a naive baseline method. RF models outperformed the baseline models when predicting the impact of unseen articles (P < 0.001 for each impact metric). Also, RF models predicted top-25% and top-10% high-impact articles with a high accuracy. Moreover, RF models revealed important article characteristics. Higher impact was observed for articles about exercise, training, performance and V̇o2max, reviews, human studies, articles from large collaborations, longer articles with many references and high engagement by scientists, practitioners and public or via news outlets and videos. Lower impact was shown for articles about respiratory physiology or sleep apnea, editorials, animal studies, and titles with a question mark or a reference to places or individuals. In summary, research impact can be predicted and better understood using a combination of article characteristics and machine learning.NEW & NOTEWORTHY Common measures of article impact are the Altmetric Attention Scores, number of downloads, and number of citations. To our knowledge, this is the first study that applies machine learning on a comprehensive collection of article characteristics to predict article attention scores, downloads, and citations. Using 10 years of research articles, we obtained accurate predictions of high-impact articles and discovered important article characteristics related to article impact.
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Affiliation(s)
- Stephan van der Zwaard
- Leiden Institute of Advanced Computer Science, Universiteit Leiden, Leiden, the Netherlands.,Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Arie-Willem de Leeuw
- Leiden Institute of Advanced Computer Science, Universiteit Leiden, Leiden, the Netherlands
| | - L Rens A Meerhoff
- Leiden Institute of Advanced Computer Science, Universiteit Leiden, Leiden, the Netherlands
| | - Sue C Bodine
- Department of Internal Medicine, Endocrinology and Metabolism, University of Iowa, Iowa City, Iowa
| | - Arno Knobbe
- Leiden Institute of Advanced Computer Science, Universiteit Leiden, Leiden, the Netherlands
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31
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Rosa CSC, Giannaki CD, Krase A, Mplekou M, Grigoriou SS, Stefanidis I, Lavdas E, Pappas A, Bloxham S, Karatzaferi C, Sakkas GK. Effects of 12 months of detraining on health-related quality of life in patients receiving hemodialysis therapy. Int Urol Nephrol 2020; 52:1771-1778. [PMID: 32797383 PMCID: PMC7426199 DOI: 10.1007/s11255-020-02560-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/29/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE Limited data exist regarding the effects of detraining on functional capacity and quality of life (QoL) in the hemodialysis population. The aim of the current study was to assess whether the discontinuation from a systematic intradialytic exercise training program will affect aspects of health-related QoL and functional capacity in hemodialysis patients. METHODS Seventeen hemodialysis patients (12 Males/5 Females, age 60.8 ± 13.6 year) participated in this study. Patients were assessed for functional capacity using various functional capacity tests while QoL, daily sleepiness, sleep quality, depression and fatigue were assessed using validated questionnaires at the end of a 12-month aerobic exercise program and after 12 months of detraining. RESULTS The detraining significantly reduced patients' QoL score by 20% (P = 0.01). More affected were aspects related to the physical component summary of the QoL (P < 0.001) rather than those related to the mental one (P = 0.096). In addition, the performance in the functional capacity tests was reduced (P < 0.05), while sleep quality (P = 0.020) and daily sleepiness scores (P = 0.006) were significantly worse after the detraining period. Depressive symptoms (P = 0.214) and the level of fatigue (P = 0.163) did not change significantly. CONCLUSIONS Detraining has a detrimental effect in patients' QoL, functional capacity and sleep quality. The affected physical health contributed significantly to the lower QoL score. It is crucial for the chronic disease patients, even during emergencies such as lockdowns and restrictions in activities to maintain a minimum level of activity to preserve some of the acquired benefits and maintain their health status.
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Affiliation(s)
- Clara Suemi Costa Rosa
- Bioscience Institute, Sao Paulo State University, Rio Claro, Brazil.,CAPES Foundation, Ministry of Education of Brazil, Brasília, Brazil
| | | | - Argyro Krase
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece
| | - Meropi Mplekou
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece
| | | | - Ioannis Stefanidis
- Department of Medicine, School of Health Science, University of Thessaly, Larissa, Greece
| | - Eleftherios Lavdas
- Department of Biomedical Sciences, University of West Attica, Athens, Greece
| | - Aggelos Pappas
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece
| | - Saul Bloxham
- School of Sports, Health and Wellbeing, Plymouth Marjon University, Plymouth, UK
| | | | - Giorgos K Sakkas
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece. .,School of Sports and Health Sciences, Cardiff Metropolitan University, Cardiff, UK.
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32
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Guinet P, MacNamara JP, Berry M, Larcher F, Bareille MP, Custaud MA, Pavy-Le Traon A, Levine BD, Navasiolava N. MNX (Medium Duration Nutrition and Resistance-Vibration Exercise) Bed-Rest: Effect of Resistance Vibration Exercise Alone or Combined With Whey Protein Supplementation on Cardiovascular System in 21-Day Head-Down Bed Rest. Front Physiol 2020; 11:812. [PMID: 32765296 PMCID: PMC7378749 DOI: 10.3389/fphys.2020.00812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/18/2020] [Indexed: 12/20/2022] Open
Abstract
Current inflight countermeasures do not completely prevent bone and cardiovascular changes induced by microgravity. High load Resistance Exercise combined with whole body Vibration (RVE) demonstrated benefits on bone and cardiovascular system during previous Head-Down Bed Rest (HDBR) studies. We examined the effectiveness of RVE alone or combined with a nutritional supplementation of Whey protein (NeX) on cardiovascular deconditioning. Eight male subjects (age 34 ± 8 years) in a crossover design completed three 21-day HDBR campaigns (Control-CON, RVE, and NeX). Pre and post HDBR Orthostatic Tolerance (OT) was evaluated by a 15-min head-up tilt test followed by increasing levels of Lower Body Negative Pressure (LBNP). Heart rate (HR), blood pressure (BP), and Sympathetic Index (ΣI) through spectral analysis were measured during OT test. Plasma Volume (PV), and Maximal Oxygen Uptake (VO2max) were measured before and after each campaign. Left ventricular mass, left ventricular end diastolic (LVEDV), end systolic (LVESV), stroke (SV) volumes, and circumferential deformation at rest and during an orthostatic stress simulated by a 30 mmHg LBNP were measured by cardiac MRI. RVE failed to prevent any change in these variables and NeX did not have any additional effect over exercise alone. In the 3 groups, (1) OT time dropped similarly (bed rest p < 0.001), (2) HR and ΣI were increased at rest at the end of HDBR and HR increased markedly during LBNP-tilt test, with inability to increase further the ΣI, (3) PV dropped (bed rest p < 0.001), along with LVEDV, LVESV and SV (p = 0.08, p < 0.001, and p = 0.045, respectively), (4) Left ventricle mass did not change significantly, (5) Deformation of the heart assessed by global circumferential strain was preserved and early diastolic circumferential strain rate was increased during orthostatic stress at the end of HDBR, illustrating preserved systolic and diastolic function respectively, without any difference between groups. Despite the drop in PV and LV volumes, RVE and NeX tended to alleviate the decrease in VO2max. In conclusion, RVE and NeX failed to prevent the cardiovascular deconditioning induced by a 21 day-HDBR.
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Affiliation(s)
- Patrick Guinet
- Département d’Anesthésie Réanimation, Centre Hospitalier Universitaire de Rennes, Rennes, France
- Centre Hospitalier de Fougères, Fougères, France
| | - James Patrick MacNamara
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | | | - Françoise Larcher
- Laboratoire de Biochimie, Centre Hospitalier Universitaire d’Angers, Angers, France
| | | | - Marc-Antoine Custaud
- Centre de Recherche Clinique, Centre Hospitalier Universitaire d’Angers, Angers, France
- Mitovasc UMR INSERM 1083-CNRS 6015, Université d’Angers, Angers, France
| | - Anne Pavy-Le Traon
- Department of Neurology, French Reference Center for MSA, University Hospital of Toulouse, Toulouse, France
- Institute of Cardiovascular and Metabolic Diseases INSERM U 1048, Toulouse, France
| | - Benjamin D. Levine
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Nastassia Navasiolava
- Centre de Recherche Clinique, Centre Hospitalier Universitaire d’Angers, Angers, France
- Mitovasc UMR INSERM 1083-CNRS 6015, Université d’Angers, Angers, France
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Counteracting Physical Inactivity during the COVID-19 Pandemic: Evidence-Based Recommendations for Home-Based Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17113909. [PMID: 32492778 PMCID: PMC7311977 DOI: 10.3390/ijerph17113909] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 11/16/2022]
Abstract
To reduce transmission of the coronavirus, from its initial outbreak in 2019 up to now, various safety measures have been enacted worldwide by the authorities that have likely led to reduced physical activity levels in the general population. This short communication aims to briefly outline the deteriorative consequences of physical inactivity on parameters of physical fitness and ultimately to highlight associated increases of cardiovascular disease risk and mortality. Finally, evidence-based practical recommendations for exercise that can be performed at home are introduced, to help avoid physical inactivity and therefore maintain or achieve good physical health.
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Narici M, Vito GD, Franchi M, Paoli A, Moro T, Marcolin G, Grassi B, Baldassarre G, Zuccarelli L, Biolo G, di Girolamo FG, Fiotti N, Dela F, Greenhaff P, Maganaris C. Impact of sedentarism due to the COVID-19 home confinement on neuromuscular, cardiovascular and metabolic health: Physiological and pathophysiological implications and recommendations for physical and nutritional countermeasures. Eur J Sport Sci 2020; 21:614-635. [PMID: 32394816 DOI: 10.1080/17461391.2020.1761076] [Citation(s) in RCA: 219] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The COVID-19 pandemic is an unprecedented health crisis as entire populations have been asked to self-isolate and live in home-confinement for several weeks to months, which in itself represents a physiological challenge with significant health risks. This paper describes the impact of sedentarism on the human body at the level of the muscular, cardiovascular, metabolic, endocrine and nervous systems and is based on evidence from several models of inactivity, including bed rest, unilateral limb suspension, and step-reduction. Data form these studies show that muscle wasting occurs rapidly, being detectable within two days of inactivity. This loss of muscle mass is associated with fibre denervation, neuromuscular junction damage and upregulation of protein breakdown, but is mostly explained by the suppression of muscle protein synthesis. Inactivity also affects glucose homeostasis as just few days of step reduction or bed rest, reduce insulin sensitivity, principally in muscle. Additionally, aerobic capacity is impaired at all levels of the O2 cascade, from the cardiovascular system, including peripheral circulation, to skeletal muscle oxidative function. Positive energy balance during physical inactivity is associated with fat deposition, associated with systemic inflammation and activation of antioxidant defences, exacerbating muscle loss. Importantly, these deleterious effects of inactivity can be diminished by routine exercise practice, but the exercise dose-response relationship is currently unknown. Nevertheless, low to medium-intensity high volume resistive exercise, easily implementable in home-settings, will have positive effects, particularly if combined with a 15-25% reduction in daily energy intake. This combined regimen seems ideal for preserving neuromuscular, metabolic and cardiovascular health.
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Affiliation(s)
- Marco Narici
- Department of Biomedical Sciences, CIR-MYO Myology Center, Neuromuscular Physiology Laboratory, University of Padova, Padua, Italy
| | - Giuseppe De Vito
- Department of Biomedical Sciences, CIR-MYO Myology Center, Neuromuscular Physiology Laboratory, University of Padova, Padua, Italy
| | - Martino Franchi
- Department of Biomedical Sciences, Neuromuscular Physiology Laboratory, University of Padova, Padua, Italy
| | - Antonio Paoli
- Department of Biomedical Sciences, Nutrition and Exercise Physiology Laboratory, University of Padova, Padua, Italy
| | - Tatiana Moro
- Department of Biomedical Sciences, Nutrition and Exercise Physiology Laboratory, University of Padova, Padua, Italy
| | - Giuseppe Marcolin
- Department of Biomedical Sciences, Nutrition and Exercise Physiology Laboratory, University of Padova, Padua, Italy
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy
| | | | | | - Gianni Biolo
- Department of Internal Medicine, University of Trieste, Ospedale di Cattinara, Trieste, Italy
| | | | - Nicola Fiotti
- Department of Internal Medicine, University of Trieste, Ospedale di Cattinara, Trieste, Italy
| | - Flemming Dela
- Xlab, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Geriatrics, Bispebjerg-Frederiksberg University Hospital, Copenhagen, Denmark
| | - Paul Greenhaff
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, Centre for Sport, Exercise and Osteoarthritis Research Versus Arthritis, National Institute for Health Research Nottingham Biomedical Research Centre, School of Life Sciences, The Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, UK
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Farshad M, Aichmair A, Wanivenhaus F, Betz M, Spirig J, Bauer DE. No benefit of early versus late ambulation after incidental durotomy in lumbar spine surgery: a randomized controlled trial. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2019; 29:141-146. [PMID: 31552537 DOI: 10.1007/s00586-019-06144-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 07/29/2019] [Accepted: 09/07/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Incidental durotomy (ID) is a complication occurring in 4-17% of decompressive spinal surgeries. Persisting CSF leakage can occur even after ID repair and requires revision surgery. Prolonged flat bed rest (BR) to reduce the incidence of persisting CSF leakage is frequently applied but highly debated. A randomized controlled trial comparing prolonged BR versus early ambulation after ID repair is lacking. The aim of this study was to investigate the incidence of revision surgery as a result of persistent cerebro-spinal fluid (CSF) leakage and medical complications after immediate or late post-operative ambulation following ID during decompressive spinal surgery. METHODS Ninety-four of 1429 consecutive cases undergoing lumbar spine surgery (6.58%) were complicated by an ID. Sixty patients (mean age of 64 ± 13.28 years) were randomized to either early post-operative ambulation (EA, n = 30) or flat BR for 48 h (BR, n = 30). The incidence of CSF leakage resulting in revision surgery, medical complications and duration of hospitalization were compared between groups. RESULTS Two patients in the BR group and two patients in the EA group underwent revision surgery as a result of persisting CSF leakage. Four patients in the BR group experienced medical complications associated with prolonged immobilization. The duration of hospitalization was 7.25 ± 3.0 days in the BR group versus 6.56 ± 2.64 days in the EA group, p = 0.413. CONCLUSION The results of this study indicate no benefit of prolonged BR after an adequately repaired ID in lumbar spine surgery. LEVEL OF EVIDENCE Level 1b (individual randomized controlled trial). These slides can be retrieved under Electronic Supplementary Material.
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Affiliation(s)
- Mazda Farshad
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland.
| | - Alexander Aichmair
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - Florian Wanivenhaus
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - Michael Betz
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - Jose Spirig
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - David Ephraim Bauer
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
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Kehler DS, Theou O, Rockwood K. Bed rest and accelerated aging in relation to the musculoskeletal and cardiovascular systems and frailty biomarkers: A review. Exp Gerontol 2019; 124:110643. [PMID: 31255732 DOI: 10.1016/j.exger.2019.110643] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 12/27/2022]
Abstract
Prolonged bed rest and lifelong physical inactivity cause deleterious effects to multiple physiological systems that appear to hasten aging processes. Many such changes are similar to those seen with microgravity in space, but at a much faster rate. Head down tilt bed rest models are used to study whole-body changes that occur with spaceflight. We propose that bed rest can be used to quantify accelerated human aging in relation to frailty. In particular, frailty as a measure of the accumulation of deficits estimates the variability in aging across systems, and moves away from the traditional single-system approach. Here, we provide an overview of the impact of bed rest on the musculoskeletal and cardiovascular systems as well as frailty-related biological markers and inflammatory cytokines. We also propose future inquiries to study the accumulation of deficits with head down bed rest and bed rest in the clinical setting, specifically to understand how unrepaired and unremoved subclinical and subcellular damage give rise to clinically observable health problems.
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Affiliation(s)
- D S Kehler
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Halifax, NS, Canada.
| | - O Theou
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - K Rockwood
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Halifax, NS, Canada
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Hoffmeyer P, Miozzari H, Holzer N. Non-hip/non-vertebral fractures - How to treat best? Best Pract Res Clin Rheumatol 2019; 33:236-263. [PMID: 31547981 DOI: 10.1016/j.berh.2019.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Fractures of the extremities in the elderly constitute more than two-thirds of all fragility fractures befalling frail, osteoporotic and sarcopenic patients. Although treatment controversies abound, consensus exists. Upper extremity fractures hinder activities of daily living and are debilitating. Open fractures or displaced fractures will need surgical intervention. Wrist fractures treated operatively allow early use of the hand. Most pelvic fractures are treated conservatively. In the lower extremities, fractures of the long bones, tibia and femur need surgical intervention. Non-displaced fractures around the foot may be treated with immobilisation and avoidance of full weight-bearing. As a rule, fractures take four months for consolidation. Individually tailored solutions are needed for frail patients with comorbidities. Maintaining joint mobility and muscle strength preserves mobility and autonomy. Caring for extremities trauma is team work, involving family and health care providers. Prevention efforts are mandatory.
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Affiliation(s)
- Pierre Hoffmeyer
- Swiss Foundation for Innovation and Training in Surgery, University Hospitals of Geneva, Rue Gabrielle-Perret-Gentil 4, CH-1205, Switzerland.
| | - Hermes Miozzari
- Department of Orthopaedics, University Hospitals of Geneva, Rue Gabrielle-Perret-Gentil 4, CH-1205, Switzerland.
| | - Nicolas Holzer
- Department of Orthopaedics, University Hospitals of Geneva, Rue Gabrielle-Perret-Gentil 4, CH-1205, Switzerland.
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Maggioni MA, Castiglioni P, Merati G, Brauns K, Gunga HC, Mendt S, Opatz OS, Rundfeldt LC, Steinach M, Werner A, Stahn AC. High-Intensity Exercise Mitigates Cardiovascular Deconditioning During Long-Duration Bed Rest. Front Physiol 2018; 9:1553. [PMID: 30510516 PMCID: PMC6252355 DOI: 10.3389/fphys.2018.01553] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 10/16/2018] [Indexed: 02/02/2023] Open
Abstract
Head-down-tilt bed rest (HDT) mimics the changes in hemodynamics and autonomic cardiovascular control induced by weightlessness. However, the time course and reciprocal interplay of these adaptations, and the effective exercise protocol as a countermeasure need further clarification. The overarching aim of this work (as part of a European Space Agency sponsored long-term bed rest study) was therefore to evaluate the time course of cardiovascular hemodynamics and autonomic control during prolonged HDT and to assess whether high-intensity, short-duration exercise could mitigate these effects. A total of n = 23 healthy, young, male participants were randomly allocated to two groups: training (TRAIN, n = 12) and non-training (CTRL, n = 11) before undergoing a 60-day HDT. The TRAIN group underwent a resistance training protocol using reactive jumps (5–6 times per week), whereas the CTRL group did not perform countermeasures. Finger blood pressure (BP), heart rate (HR), and stroke volume were collected beat-by-beat for 10 min in both sitting and supine positions 7 days before HDT (BDC−7) and 10 days after HDT (R+10), as well as on the 2nd (HDT2), 28th (HDT28), and 56th (HDT56) day of HDT. We investigated (1) the isolated effects of long-term HDT by comparing all the supine positions (including BDC−7 and R+10 at 0 degrees), and (2) the reactivity of the autonomic response before and after long-term HDT using a specific postural stimulus (i.e., supine vs. sitting). Two-factorial linear mixed models were used to assess the time course of HDT and the effect of the countermeasure. Starting from HDT28 onwards, HR increased (p < 0.02) and parasympathetic tone decreased exclusively in the CTRL group (p < 0.0001). Moreover, after 60-day HDT, CTRL participants showed significant impairments in increasing cardiac sympathovagal balance and controlling BP levels during postural shift (supine to sitting), whereas TRAIN participants did not. Results show that a 10-day recovery did not compensate for the cardiovascular and autonomic deconditioning following 60-day HDT. This has to be considered when designing rehabilitation programs—not only for astronauts but also in general public healthcare. High-intensity, short-duration exercise training effectively minimized these impairments and should therefore deserve consideration as a cardiovascular deconditioning countermeasure for spaceflight.
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Affiliation(s)
- Martina A Maggioni
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | | | - Giampiero Merati
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Katharina Brauns
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Hanns-Christian Gunga
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Stefan Mendt
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Oliver S Opatz
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Lea C Rundfeldt
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Mathias Steinach
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
| | - Anika Werner
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany.,Université de Normandie, INSERM U 1075 COMETE, Caen, France
| | - Alexander C Stahn
- Charité-Universitätsmedizin Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany.,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Grassi B. Bed Rest Studies as Analogs of Conditions Encountered in Space and in Diseases. Med Sci Sports Exerc 2018; 50:1907-1908. [PMID: 30113540 DOI: 10.1249/mss.0000000000001621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Bruno Grassi
- Department of Medicine, University of Udine, Udine, ITALY
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