Stubborn Exercise Responders–Where to Next?

There is a wide variance in the magnitude of physiological adaptations after resistance or endurance training. The incidence of “non” or “poor” responders to training has been reported to represent as high as 40% of the project’s sample. However, the incidence of poor responders to training can be a...

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Main Authors: Leo R. Bell, Tim J. Gabbett, Gregory M. Davis, Matthew P. Wallen, Brendan J. O’Brien
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Sports
Subjects:
Online Access:https://www.mdpi.com/2075-4663/10/6/95
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author Leo R. Bell
Tim J. Gabbett
Gregory M. Davis
Matthew P. Wallen
Brendan J. O’Brien
author_facet Leo R. Bell
Tim J. Gabbett
Gregory M. Davis
Matthew P. Wallen
Brendan J. O’Brien
author_sort Leo R. Bell
collection DOAJ
description There is a wide variance in the magnitude of physiological adaptations after resistance or endurance training. The incidence of “non” or “poor” responders to training has been reported to represent as high as 40% of the project’s sample. However, the incidence of poor responders to training can be ameliorated with manipulation of either the training frequency, intensity, type and duration. Additionally, global non-response to cardio-respiratory fitness training is eliminated when evaluating several health measures beyond just the target variables as at least one or more measure improves. More research is required to determine if altering resistance training variables results in a more favourable response in individuals with an initial poor response to resistance training. Moreover, we recommend abandoning the term “poor” responders, as ultimately the magnitude of change in cardiorespiratory fitness in response to endurance training is similar in “poor” and “high” responders if the training frequency is subsequently increased. Therefore, we propose “stubborn” responders as a more appropriate term. Future research should focus on developing viable physiological and lifestyle screening tests that identify likely stubborn responders to conventional exercise training guidelines before the individual engages with training. Exerkines, DNA damage, metabolomic responses in blood, saliva and breath, gene sequence, gene expression and epigenetics are candidate biomarkers that warrant investigation into their relationship with trainability. Crucially, viable biomarker screening tests should show good construct validity to distinguish between different exercise loads, and possess excellent sensitivity and reliability. Furthermore “red flag” tests of likely poor responders to training should be practical to assess in clinical settings and be affordable and non-invasive. Early identification of stubborn responders would enable optimization of training programs from the onset of training to maintain exercise motivation and optimize the impact on training adaptations and health.
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spelling doaj.art-5b36e0ec92924244816bfe87ab28e89f2023-11-23T19:00:06ZengMDPI AGSports2075-46632022-06-011069510.3390/sports10060095Stubborn Exercise Responders–Where to Next?Leo R. Bell0Tim J. Gabbett1Gregory M. Davis2Matthew P. Wallen3Brendan J. O’Brien4Institute of Health and Wellbeing, Federation University, Mount Helen, VIC 3350, AustraliaInstitute of Health and Wellbeing, Federation University, Mount Helen, VIC 3350, AustraliaInstitute of Health and Wellbeing, Federation University, Mount Helen, VIC 3350, AustraliaInstitute of Health and Wellbeing, Federation University, Mount Helen, VIC 3350, AustraliaInstitute of Health and Wellbeing, Federation University, Mount Helen, VIC 3350, AustraliaThere is a wide variance in the magnitude of physiological adaptations after resistance or endurance training. The incidence of “non” or “poor” responders to training has been reported to represent as high as 40% of the project’s sample. However, the incidence of poor responders to training can be ameliorated with manipulation of either the training frequency, intensity, type and duration. Additionally, global non-response to cardio-respiratory fitness training is eliminated when evaluating several health measures beyond just the target variables as at least one or more measure improves. More research is required to determine if altering resistance training variables results in a more favourable response in individuals with an initial poor response to resistance training. Moreover, we recommend abandoning the term “poor” responders, as ultimately the magnitude of change in cardiorespiratory fitness in response to endurance training is similar in “poor” and “high” responders if the training frequency is subsequently increased. Therefore, we propose “stubborn” responders as a more appropriate term. Future research should focus on developing viable physiological and lifestyle screening tests that identify likely stubborn responders to conventional exercise training guidelines before the individual engages with training. Exerkines, DNA damage, metabolomic responses in blood, saliva and breath, gene sequence, gene expression and epigenetics are candidate biomarkers that warrant investigation into their relationship with trainability. Crucially, viable biomarker screening tests should show good construct validity to distinguish between different exercise loads, and possess excellent sensitivity and reliability. Furthermore “red flag” tests of likely poor responders to training should be practical to assess in clinical settings and be affordable and non-invasive. Early identification of stubborn responders would enable optimization of training programs from the onset of training to maintain exercise motivation and optimize the impact on training adaptations and health.https://www.mdpi.com/2075-4663/10/6/95exerciseresponderspoorlowtrainingbiomarkers
spellingShingle Leo R. Bell
Tim J. Gabbett
Gregory M. Davis
Matthew P. Wallen
Brendan J. O’Brien
Stubborn Exercise Responders–Where to Next?
Sports
exercise
responders
poor
low
training
biomarkers
title Stubborn Exercise Responders–Where to Next?
title_full Stubborn Exercise Responders–Where to Next?
title_fullStr Stubborn Exercise Responders–Where to Next?
title_full_unstemmed Stubborn Exercise Responders–Where to Next?
title_short Stubborn Exercise Responders–Where to Next?
title_sort stubborn exercise responders where to next
topic exercise
responders
poor
low
training
biomarkers
url https://www.mdpi.com/2075-4663/10/6/95
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