Energy expended during horizontal jumping: investigating the effects of surface compliance.

ABSTRACT: We present the first data on the metabolic costs of horizontal jumping in humans, using this tractable model to explore variations in energy expenditure with substrate properties, and consider these findings in light of kinematic data. Twenty-four participants jumped consistently at the rate of 1 jump per 5 s between opposing springboards separated by either a short (1.2 m) or long (1.8 m) gap. Springboards were either 'firm' or 'compliant'. Respiratory gas exchange was measured using a back-mounted portable respiratory gas analyser to represent rate of energy expenditure, which was converted to energy expenditure per metre jumped. Video data were recorded to interpret kinematic information. Horizontal jumping was found to be between around 10 and 20 times the energy cost of cursorial loco

SUBMITTER: Coward SR 

PROVIDER: S-EPMC4163658 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature