TY - RPRT TI - Effect of instructions on isokinetic trunk strength testing variability, reliability, absolute value, and predictive validity. AU - L Matheson AU - V Mooney AU - V Caiozzo AU - G Jarvis AU - J Pottinger AU - C DeBerry AU - K Backlund AU - K Klein AU - J Antoni PY - 1992 DO - 10.1097/00007632-199208000-00008 UR - https://pubmed.ncbi.nlm.nih.gov/1523494/ ID - 1523494 ER -