Concurrent validity of barbell force measured from video-based barbell kinematics during the snatch in male elite weightlifters.

ABSTRACT: This study examined the concurrent validity of an inverse dynamic (force computed from barbell acceleration [reference method]) and a work-energy (force computed from work at the barbell [alternative method]) approach to measure the mean vertical barbell force during the snatch using kinematic data from video analysis. For this purpose, the acceleration phase of the snatch was analyzed in thirty male medal winners of the 2018 weightlifting World Championships (age: 25.2±3.1 years; body mass: 88.9±28.6 kg). Vertical barbell kinematics were measured using a custom-made 2D real-time video analysis software. Agreement between the two computational approaches was assessed using Bland-Altman analysis, Deming regression, and Pearson product-moment correlation. Further, principal component analysi

SUBMITTER: Sandau I 

PROVIDER: S-EPMC8289080 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature