Association Between Sit-to-Stand and Stair Climb Power and Isometric/Isokinetic Muscle Strength: A Cross-Sectional Study

This cross-sectional study aims to examine whether lower-limb muscle power, estimated from the Sit-to-Stand and Stair Climb tests, is associated with isometric and isokinetic muscle strength. By comparing functional performance-based measures with laboratory-based strength assessments, the study seeks to determine the extent to which simple clinical tests can reflect underlying muscle strength capacity. The results may help inform the use of functional power tests as practical, time-efficient indicators of muscle strength in both clinical and research settings.