Influence of kilohertz frequency, burst duty cycle and burst duration on evoked torque, discomfort and muscle efficiency: A randomized crossover trial.

ABSTRACT: Kilohertz-frequency alternating currents (KFACs) have been indicated to minimize muscle atrophy and weakness. However, the optimal stimulation parameters still need to be determined.

Objective

This study aimed to investigate the effects of different KFACs on evoked torque, current efficiency, and perceived discomfort.

Design

KFACs with frequencies of 1 kHz (Aussie current) and 2.5 kHz (Russian current), along with two duty cycles (10% and 20%), were randomly applied to the triceps surae muscle of healthy participants using a crossover design. The NMES intensity, NMES-evoked torque, NMES efficiency, and NMES discomfort were measured in maximal and submaximal conditions. Statistical analyses were conducted using a two-way mixed-model ANOVA with repeated measures. Forty-four par

SUBMITTER: Modesto KAG 

PROVIDER: S-EPMC11480646 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature