Lower extremity physical performance measures (part 1)
Physical performance tests (PPTs) are used extensively throughout the sporting world as a means of screening athletes pre-season and pre-injury. The following systematic review evaluated the measurement properties of PPTs related to the knee as each pertains to athletes. Furthermore, the authors set to endeavor the relationship between PPTs and the onset of injury in athletes.
A search strategy yielded 29 articles pertaining to the knee detailing 19 PPTs. Six of these were compiled in a best evidence synthesis. These included: one-leg hop for distance (single and triple hop), 6m timed hop, crossover hop for distance, triple jump, and single-leg vertical jump. The validity of the hop is questionable, whilst moderate evidence suggests that the hop test is responsive to changes during rehabilitation. At this stage, no test appears to predict knee injury in athletes.
There is currently limited and conflicting evidence regarding the validity, reliability and responsiveness of commonly used PPTs at the knee in athletes.
> From: Hegedus et al., Br J Sports Med 49 (2015) 642-648. All rights reserved to BMJ Publishing Group Ltd. Click here for the Pubmed summary.