Precise Instruction and Consideration of the Vertical and Horizontal Force Component Increase Validity and Reliability of the 90:20 Isometric Posterior Chain Test
D. M. Rasp, F. K. Paternoster, J. Kern, A. Schwirtz
This study improves the 90:20 Isometric Posterior Chain Test by adding precise instructions and parameters, resulting in better validity and reliability for assessing hamstring strength.
bioRxiv · Jun 6, 2024 · PreprintPhysiology