The Cardiovascular Response to Interval Exercise Is Modified by the Contraction Type and Training in Proportion to Metabolic Stress of Recruited Muscle Groups.

ABSTRACT:

Background

Conventional forms of endurance training based on shortening contractions improve aerobic capacity but elicit a detriment of muscle strength. We hypothesized that eccentric interval training, loading muscle during the lengthening phase of contraction, overcome this interference and potentially adverse cardiovascular reactions, enhancing both muscle metabolism and strength, in association with the stress experienced during exercise.

Methods

Twelve healthy participants completed an eight-week program of work-matched progressive interval-type pedaling exercise on a soft robot under predominately concentric or eccentric load.

Results

Eccentric interval training specifically enhanced the peak power of positive anaerobic contractions (+28%), mitigated the strain

SUBMITTER: Gasser B 

PROVIDER: S-EPMC7795051 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature