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Task-specific neural adaptations to isoinertial resistance training

Buckthorpe, M and Erskine, RM and Fletcher, G and Folland, JP (2015) Task-specific neural adaptations to isoinertial resistance training. SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS, 25 (5). pp. 640-649. ISSN 0905-7188

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Abstract

This study aimed to delineate the contribution of adaptations in agonist, antagonist and stabiliser muscle activation to changes in isometric and isoinertial lifting strength after short-term isoinertial resistance training (RT). Following familiarisation, 45 men (23.2±2.8 yrs) performed maximal isometric and isoinertial strength tests of the elbow flexors of their dominant arm before and after three weeks of isoinertial RT. During these tasks surface EMG amplitude was recorded from the agonist (biceps brachii short and long heads), antagonist (triceps brachii lateral head) and stabiliser (anterior deltoid, pectoralis major) muscles and normalised to either Mmax (agonists) or to maximum EMG during relevant reference tasks (antagonist, stabilisers). After training there was more than a two-fold greater increase in training task specific isoinertial than isometric strength (17 vs. 7%). There were also task specific adaptations in agonist EMG, with greater increases during the isoinertial than isometric strength task (ANOVA, training x task, P=0.005). A novel finding of this study was that training increased stabiliser muscle activation during all the elbow flexion strength tasks (P<0.001), although these were not task specific training effects. RT elicited specific neural adaptations to the training task that appeared to explain the greater increase in isoinertial than isometric strength.

Item Type: Article
Additional Information: This is the accepted version of the following article: "Task-specific neural adaptations to isoinertial resistance training" which has been published in final form at: http://dx.doi.org/10.1111/sms.12292
Uncontrolled Keywords: 1106 Human Movement And Sports Science
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: WILEY-BLACKWELL
Related URLs:
Date Deposited: 25 Feb 2016 13:42
Last Modified: 25 Feb 2016 13:42
DOI or Identification number: 10.1111/sms.12292
URI: http://researchonline.ljmu.ac.uk/id/eprint/2988

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