Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation

Rationale: Evidence suggests that training in hypoxia can be very effective even while requiring less physical effort. We therefore aimed to measure the effect of endurance training under hypoxic conditions on pulmonary and cardiovascular parameters in an elderly population undergoing inpatient reha...

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Main Authors: Stephan Pramsohler, Martin Burtscher, Martin Faulhaber, Hannes Gatterer, Linda Rausch, Arn Eliasson, Nikolaus C. Netzer
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-07-01
Series:Frontiers in Physiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fphys.2017.00514/full
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author Stephan Pramsohler
Martin Burtscher
Martin Faulhaber
Hannes Gatterer
Linda Rausch
Arn Eliasson
Nikolaus C. Netzer
Nikolaus C. Netzer
Nikolaus C. Netzer
author_facet Stephan Pramsohler
Martin Burtscher
Martin Faulhaber
Hannes Gatterer
Linda Rausch
Arn Eliasson
Nikolaus C. Netzer
Nikolaus C. Netzer
Nikolaus C. Netzer
author_sort Stephan Pramsohler
collection DOAJ
description Rationale: Evidence suggests that training in hypoxia can be very effective even while requiring less physical effort. We therefore aimed to measure the effect of endurance training under hypoxic conditions on pulmonary and cardiovascular parameters in an elderly population undergoing inpatient rehabilitation.Methods: Forty patients over age 65 years with multiple co-morbid conditions were recruited during a 3-week stay in a geriatric rehabilitation center. Using a randomized, single-blinded, placebo-controlled design, patients were assigned to a hypoxic (HG) or normoxic (NG) group. HG patients completed seven training sessions of 30 min duration on a treadmill in a normobaric chamber with inspired oxygen fraction (FiO2) of 15.27%, with 10–30 min active training. Training was conducted with target heart rate at 80% of peak oxygen consumption (VO2-peak). NG group performed similar training in sham hypoxia (room air or FiO2 = 20.94%). At pre- and post-test completion, measures included: (1) cycle ergometry with ECG monitoring and measurement of VO2-peak, and (2) echocardiography for ejection fraction.Results: The physical effort required of patients to reach target heart rate was reduced significantly (−28%, p = 0.043) in the HG compared to NG. Cardiopulmonary parameters showed no differences between groups.Conclusion: Endurance training at 3,000 meters elevation imposes less stress on the locomotor systems while resulting in a similar physiological strain (i.e., heart rate). Hypoxic training holds promise for successful geriatric rehabilitation by being more accommodating to physical limitations in geriatric patients.Trial registration: Registration at DRKS. (Approval No. 359/12, Trial No. DRKS00005241).
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spelling doaj.art-ca44bb27b9224525a1afeafcae54e2112022-12-22T01:44:50ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2017-07-01810.3389/fphys.2017.00514266805Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric RehabilitationStephan Pramsohler0Martin Burtscher1Martin Faulhaber2Hannes Gatterer3Linda Rausch4Arn Eliasson5Nikolaus C. Netzer6Nikolaus C. Netzer7Nikolaus C. Netzer8Hermann Buhl Institute for Hypoxia and Sleep Medicine ResearchBad Aibling, GermanyDepartment of Sport Science, University of InnsbruckInnsbruck, AustriaDepartment of Sport Science, University of InnsbruckInnsbruck, AustriaDepartment of Sport Science, University of InnsbruckInnsbruck, AustriaHermann Buhl Institute for Hypoxia and Sleep Medicine ResearchBad Aibling, GermanyDepartment of Medicine, Uniformed Services University of the Health SciencesBethesda, MD, United StatesHermann Buhl Institute for Hypoxia and Sleep Medicine ResearchBad Aibling, GermanyDepartment of Sport Science, University of InnsbruckInnsbruck, AustriaDivision of Sports Medicine and Rehabilitation, Department of Medicine, University of UlmUlm, GermanyRationale: Evidence suggests that training in hypoxia can be very effective even while requiring less physical effort. We therefore aimed to measure the effect of endurance training under hypoxic conditions on pulmonary and cardiovascular parameters in an elderly population undergoing inpatient rehabilitation.Methods: Forty patients over age 65 years with multiple co-morbid conditions were recruited during a 3-week stay in a geriatric rehabilitation center. Using a randomized, single-blinded, placebo-controlled design, patients were assigned to a hypoxic (HG) or normoxic (NG) group. HG patients completed seven training sessions of 30 min duration on a treadmill in a normobaric chamber with inspired oxygen fraction (FiO2) of 15.27%, with 10–30 min active training. Training was conducted with target heart rate at 80% of peak oxygen consumption (VO2-peak). NG group performed similar training in sham hypoxia (room air or FiO2 = 20.94%). At pre- and post-test completion, measures included: (1) cycle ergometry with ECG monitoring and measurement of VO2-peak, and (2) echocardiography for ejection fraction.Results: The physical effort required of patients to reach target heart rate was reduced significantly (−28%, p = 0.043) in the HG compared to NG. Cardiopulmonary parameters showed no differences between groups.Conclusion: Endurance training at 3,000 meters elevation imposes less stress on the locomotor systems while resulting in a similar physiological strain (i.e., heart rate). Hypoxic training holds promise for successful geriatric rehabilitation by being more accommodating to physical limitations in geriatric patients.Trial registration: Registration at DRKS. (Approval No. 359/12, Trial No. DRKS00005241).http://journal.frontiersin.org/article/10.3389/fphys.2017.00514/fullhypoxiatraining with geriatricslow external loadtraininggeriatrics
spellingShingle Stephan Pramsohler
Martin Burtscher
Martin Faulhaber
Hannes Gatterer
Linda Rausch
Arn Eliasson
Nikolaus C. Netzer
Nikolaus C. Netzer
Nikolaus C. Netzer
Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
Frontiers in Physiology
hypoxia
training with geriatrics
low external load
training
geriatrics
title Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
title_full Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
title_fullStr Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
title_full_unstemmed Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
title_short Endurance Training in Normobaric Hypoxia Imposes Less Physical Stress for Geriatric Rehabilitation
title_sort endurance training in normobaric hypoxia imposes less physical stress for geriatric rehabilitation
topic hypoxia
training with geriatrics
low external load
training
geriatrics
url http://journal.frontiersin.org/article/10.3389/fphys.2017.00514/full
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