Muscle activation strategies during strength training with heavy loading versus repetitions to failure

Emil Sundstrup, Markus D Jakobsen, Christoffer H Andersen, Mette K Zebis, Ole S Mortensen, Lars L Andersen

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Abstrakt

Going to failure - or not, have probably been one of the most debated issues during the history of strength training. However, few studies have directly compared the physiological effect of failure versus non-failure strength training. The purpose of this study was to evaluate muscle activation strategies with electromyography during heavy repetitions versus repetitions to failure with lighter resistance. 15 healthy untrained females performed a set with heavy loading (3 Repetition maximum) and a set of repetitions to failure with lower resistance (∼15 RM) during lateral raise with elastic tubing. Electromyographic (EMG) amplitude and median power frequency (MPF) of specific shoulder and neck muscles was analysed and the Borg CR10 scale was used to rate perceived loading immediately after each set of exercise. During the failure set normalized EMG was significantly lower during the first repetition and significantly higher during the latter repetitions compared with the heavy 3 RM set (P
OriginalsprogEngelsk
TidsskriftJournal of strength and conditioning research / National Strength & Conditioning Association
Vol/bind26
Udgave nummer7
Sider (fra-til)1897–1903
DOI
StatusUdgivet - jul. 2012

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NB! Også poster med næsten samme navn - Affiliation !!!!!!!
POST ACCEPTANCE, 07 October 2011

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