Medicine and Health Sciences Commons^™

Post-Activation Potentiation Versus Post-Activation Performance Enhancement In Humans: Historical Perspective, Underlying Mechanisms, And Current Issues, Anthony J. Blazevich, Nicolas Babault

Research outputs 2014 to 2021

Post-activation potentiation (PAP) is a well-described phenomenon with a short half-life (~28 s) that enhances muscle force production at submaximal levels of calcium saturation (i.e., submaximal levels of muscle activation). It has been largely explained by an increased myosin light chain phosphorylation occurring in type II muscle fibers, and its effects have been quantified in humans by measuring muscle twitch force responses to a bout of muscular activity. However, enhancements in (sometimes maximal) voluntary force production detected several minutes after high-intensity muscle contractions are also observed, which are also most prominent in muscles with a high proportion of type II …

Validity Of The Velocomp Powerpod Compared With The Verve Cycling Infocrank Power Meter, Paul F. J. Merkes, Paolo Menaspà, Chris R. Abbiss

Research outputs 2014 to 2021

Purpose:

To determine the validity of the Velocomp PowerPod power meter in comparison with the Verve Cycling InfoCrank power meter.

Methods:

This research involved 2 separate studies. In study 1, 12 recreational male road cyclists completed 7 maximal cycling efforts of a known duration (2 times 5 s and 15, 30, 60, 240, and 600 s). In study 2, 4 elite male road cyclists completed 13 outdoor cycling sessions. In both studies, power output of cyclists was continuously measured using both the PowerPod and InfoCrank power meters. Maximal mean power output was calculated for durations of 1, 5, …