Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations

Background Based on emerging evidence that brief periods of cessation from resistance training (RT) may re-sensitize muscle to anabolic stimuli, we aimed to investigate the effects of a 1-week deload interval at the midpoint of a 9-week RT program on muscular adaptations in resistance-trained indivi...

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Main Authors: Max Coleman, Ryan Burke, Francesca Augustin, Alec Piñero, Jaime Maldonado, James P. Fisher, Michael Israetel, Patroklos Androulakis Korakakis, Paul Swinton, Douglas Oberlin, Brad J. Schoenfeld
Format: Article
Language:English
Published: PeerJ Inc. 2024-01-01
Series:PeerJ
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Online Access:https://peerj.com/articles/16777.pdf
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author Max Coleman
Ryan Burke
Francesca Augustin
Alec Piñero
Jaime Maldonado
James P. Fisher
Michael Israetel
Patroklos Androulakis Korakakis
Paul Swinton
Douglas Oberlin
Brad J. Schoenfeld
author_facet Max Coleman
Ryan Burke
Francesca Augustin
Alec Piñero
Jaime Maldonado
James P. Fisher
Michael Israetel
Patroklos Androulakis Korakakis
Paul Swinton
Douglas Oberlin
Brad J. Schoenfeld
author_sort Max Coleman
collection DOAJ
description Background Based on emerging evidence that brief periods of cessation from resistance training (RT) may re-sensitize muscle to anabolic stimuli, we aimed to investigate the effects of a 1-week deload interval at the midpoint of a 9-week RT program on muscular adaptations in resistance-trained individuals. Methods Thirty-nine young men (n = 29) and women (n = 10) were randomly assigned to 1 of 2 experimental, parallel groups: An experimental group that abstained from RT for 1 week at the midpoint of a 9-week, high-volume RT program (DELOAD) or a traditional training group that performed the same RT program continuously over the study period (TRAD). The lower body routines were directly supervised by the research staff while upper body training was carried out in an unsupervised fashion. Muscle growth outcomes included assessments of muscle thickness along proximal, mid and distal regions of the middle and lateral quadriceps femoris as well as the mid-region of the triceps surae. Adaptions in lower body isometric and dynamic strength, local muscular endurance of the quadriceps, and lower body muscle power were also assessed. Results Results indicated no appreciable differences in increases of lower body muscle size, local endurance, and power between groups. Alternatively, TRAD showed greater improvements in both isometric and dynamic lower body strength compared to DELOAD. Additionally, TRAD showed some slight psychological benefits as assessed by the readiness to train questionnaire over DELOAD. Conclusion In conclusion, our findings suggest that a 1-week deload period at the midpoint of a 9-week RT program appears to negatively influence measures of lower body muscle strength but has no effect on lower body hypertrophy, power or local muscular endurance.
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spelling doaj.art-a4dfa13a91684830aed3d274e84cb4e32024-01-24T15:05:24ZengPeerJ Inc.PeerJ2167-83592024-01-0112e1677710.7717/peerj.16777Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptationsMax Coleman0Ryan Burke1Francesca Augustin2Alec Piñero3Jaime Maldonado4James P. Fisher5Michael Israetel6Patroklos Androulakis Korakakis7Paul Swinton8Douglas Oberlin9Brad J. Schoenfeld10Applied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaSolent University, Southampton, United KingdomApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaRobert Gordon Univesity, Aberdeen, United KingdomApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaApplied Muscle Development Laboratory, City University of New York, Herbert H. Lehman College, Bronx, United States of AmericaBackground Based on emerging evidence that brief periods of cessation from resistance training (RT) may re-sensitize muscle to anabolic stimuli, we aimed to investigate the effects of a 1-week deload interval at the midpoint of a 9-week RT program on muscular adaptations in resistance-trained individuals. Methods Thirty-nine young men (n = 29) and women (n = 10) were randomly assigned to 1 of 2 experimental, parallel groups: An experimental group that abstained from RT for 1 week at the midpoint of a 9-week, high-volume RT program (DELOAD) or a traditional training group that performed the same RT program continuously over the study period (TRAD). The lower body routines were directly supervised by the research staff while upper body training was carried out in an unsupervised fashion. Muscle growth outcomes included assessments of muscle thickness along proximal, mid and distal regions of the middle and lateral quadriceps femoris as well as the mid-region of the triceps surae. Adaptions in lower body isometric and dynamic strength, local muscular endurance of the quadriceps, and lower body muscle power were also assessed. Results Results indicated no appreciable differences in increases of lower body muscle size, local endurance, and power between groups. Alternatively, TRAD showed greater improvements in both isometric and dynamic lower body strength compared to DELOAD. Additionally, TRAD showed some slight psychological benefits as assessed by the readiness to train questionnaire over DELOAD. Conclusion In conclusion, our findings suggest that a 1-week deload period at the midpoint of a 9-week RT program appears to negatively influence measures of lower body muscle strength but has no effect on lower body hypertrophy, power or local muscular endurance.https://peerj.com/articles/16777.pdfDetrainingHypertrophyStrengthMuscle enduranceResensitize
spellingShingle Max Coleman
Ryan Burke
Francesca Augustin
Alec Piñero
Jaime Maldonado
James P. Fisher
Michael Israetel
Patroklos Androulakis Korakakis
Paul Swinton
Douglas Oberlin
Brad J. Schoenfeld
Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
PeerJ
Detraining
Hypertrophy
Strength
Muscle endurance
Resensitize
title Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
title_full Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
title_fullStr Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
title_full_unstemmed Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
title_short Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations
title_sort gaining more from doing less the effects of a one week deload period during supervised resistance training on muscular adaptations
topic Detraining
Hypertrophy
Strength
Muscle endurance
Resensitize
url https://peerj.com/articles/16777.pdf
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