The effect of elastic therapeutic taping on lumbar extensor isokinetic performance.

Objectives: To investigate the effects of elastic therapeutic tape when applied overlaying the lumbar extensors on different measures of muscle performance, compared to a placebo taping technique and a no-tape control.

Design: A cross-sectional experimental study.

Setting: A biomechanics laboratory.

Humeral elevation reduces the dynamic control ratio of the shoulder muscles during internal rotation.

Objectives: To determine the differences in the dynamic control ratio of the glenohumeral joint rotators, during internal rotation at 20° and 60° of humeral elevation in the scapular plan. Dynamic control ratio (DCR) is defined as the ratio between eccentric action of the lateral rotators and the concentric action of the medial rotators.

Design: A cross-sectional laboratory study.