The study investigates isometric strength testing in sports science, hypothesizing that traditional tests measuring both peak force (PF) and rate of force development (RFD) may undermine the assessment of early RFD and its connection to vertical jump performance.
Researchers analyzed 47 participants using a standard isometric midthigh pull protocol and a specific RFD protocol, comparing their results to various jump performance measures.
Results indicated that the RFD-specific protocol yielded higher RFD values for quick time frames but lower PF, with weak to moderate correlations between jump performance and RFD/PF measures, regardless of the testing method used.