Comparing the effects of low and high load resistance exercise to failure on adaptive responses to resistance exercise in young women

Stefanaki, D.G.A., Dzulkarnain, A. and Gray, S.R. (2019) Comparing the effects of low and high load resistance exercise to failure on adaptive responses to resistance exercise in young women. Journal of Sports Sciences, 37(12), pp. 1375-1380. (doi:10.1080/02640414.2018.1559536) (PMID:30646835)

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Abstract

The aim of this study was to compare the effect of 6 weeks of resistance training to volitional failure at low (30% 1 repetition maximum (RM)) or high (80%1RM) loads on gains in muscle size and strength in young women. Thirteen women (age: 29.7 ± 4.7years; height 166.7 ± 6.4cm; weight 64.2 ± 12.2kg) completed 2 training sessions per week for 6 weeks and muscle strength (1RM), muscle thickness (ultrasound) were measured before and after training. Training comprised 1 set to volitional failure of unilateral leg extensions and bicep curls with each limb randomly assigned to train at either 80% 1RM or 30% 1RM. Increases in muscle thickness [arms: 6.81 ± 3.15% (30% 1RM), 5.90 ± 3.13% (80% 1RM) and legs: 9.37 ± 5.61% (30% 1RM), 9.13 ± 7.9% (80% 1RM)] and strength [arms: 15.4 ± 12.2% (30% 1RM), 18.26 ± 12.2% (80% 1RM) and legs: 25.30 ± 18.4 (30% 1RM), 27.20 ± 14.5 (80% 1RM)] were not different between loads. When resistance exercise is performed to volitional failure gains in muscle size and strength are independent of load in young women.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gray, Dr Stuart and Dzulkarnain Bin Ismail, Ahmad and Stefanaki, Miss Danai
Authors: Stefanaki, D.G.A., Dzulkarnain, A., and Gray, S.R.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
Journal Name:Journal of Sports Sciences
Publisher:Taylor & Francis
ISSN:0264-0414
ISSN (Online):1466-447X
Published Online:16 January 2019
Copyright Holders:Copyright © 2019 Informa UK Limited, trading as Taylor & Francis Group
First Published:First published in Journal of Sports Sciences 37(12):1375-1380
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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