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Long-Term Time-Course of Strength Adaptation to Minimal Dose Resistance Training Through Retrospective Longitudinal Growth Modeling by James Steele; James P. Fisher; Jurgen Giessing; Patroklos Androulakis-Korakakis; Milo Wolf; Bram Kroeske; Rob Reuters is a Medicine article available to read on EtoBox.

What is Long-Term Time-Course of Strength Adaptation to Minimal Dose Resistance Training Through Retrospective Longitudinal Growth Modeling about?

Public health guidelines for resistance training emphasize a minimal effective dose intending for individuals to engage in these behaviors long term. However, few studies have adequately examined the longitudinal time-course of strength adaptations to resistance training. The aim of this study was to examine the time-course of strength development from minimal-dose resistance training in a large sample through retrospective training records from a private international exercise company. Data were available for analysis from 14,690 participants (60% female; aged 48 ± 11 years) having undergone minimal-dose resistance training (1x/week, single sets to momentary failure of six exercises) up to 352 weeks (~6.8 years) in length. Linear-log growth models examined strength development over time allowing random intercepts and slopes by participant. All models demonstrated a robust linear-log relationship with the first derivatives (i.e., changes in strength with time) trending asymptotically such that by ~1-2 years strength had practically reached a "plateau." Sex, bodyweight, and age had minimal interaction effects. However, substantial strength gains were apparent; approximately ~30-50%

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Author

James Steele; James P. Fisher; Jurgen Giessing; Patroklos Androulakis-Korakakis; Milo Wolf; Bram Kroeske; Rob Reuters

Publisher

Informa UK Limited

Published

2022

Language

EN

Field

Medicine (Health Sciences)