Muscle strength and activity in men and women performing maximal effort biceps curl exercise on a new machine that automates eccentric overload and drop setting.

ABSTRACT:

Purpose

Connected adaptive resistance exercise (CARE) machines are new equipment purported to adjust resistances within and between repetitions to make eccentric (ECC) overload and drop sets more feasible. Here, we examined muscle strength, endurance, electromyographic activity (EMG), and perceptions of fatigue during unilateral bicep curl exercise with a CARE machine and dumbbells. We also tested for sex differences in muscle fatigability.

Methods

Twelve men and nine women attempted 25 consecutive coupled maximal ECC-concentric (CON) repetitions (ECC_max-CON_max) on a CARE machine. Participants also completed a CON one repetition maximum (1RM) and repetitions-to-failure tests with 60 and 80% 1RM dumbbells.

Results

Maximal strength on the CARE mach

SUBMITTER: Nuzzo JL 

PROVIDER: S-EPMC10191922 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature