Differences in electromyographic activity of biceps brachii and brachioradialis while performing three variants of curl.

ABSTRACT:

Background

Dumbbell curl (DC) and barbell curl in its two variants, straight (BC) or undulated bar (EZ) are typical exercises to train the elbow flexors. The aim of the study was to verify if the execution of these three variants could induce a selective electromyographic (EMG) activity of the biceps brachii (BB) and brachioradialis (BR).

Methods

Twelve participants performed one set of ten repetitions at 65% of their 1-RM for each variant of curl. Pre-gelled electrodes were applied with an inter-electrode distance of 24 mm on BB and BR. An electrical goniometer was synchronously recorded with EMG signals to determine the concentric and eccentric phases of each variant of curl.

Results

We detected higher activation profile of both BB (P < 0.05) and BR (P

SUBMITTER: Marcolin G 

PROVIDER: S-EPMC6047503 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature