Dedi Lumbroso, BPT
Journal of Bodywork and Movement Therapies
Volume 18, Issue 1 , Pages 130-138, January 2014

Summary
Background
Scarce evidence exists about effectiveness and mechanisms of action of Kinesio tape (KT) application.

Objectives
To evaluate the effect of KT application over the gastrocnemius or hamstring on range of motion and peak force.

Methods
Thirty-six physical therapy students participated (18 per group). KT was applied with 30% tension for 48 h to: Group 1 – the gastrocnemius; Group 2 – the hamstrings. The straight leg raise (SLR), knee extension angle (KEA), weight bearing ankle dorsiflexion, gastrocnemius, quadriceps and hamstrings peak forces were evaluated prior to application, 15 min and 48 h after.

Results and conclusions
A significant increase of peak force in the gastrocnemius group appeared immediately and two days later; no immediate change of peak force in the hamstrings group, however, two days later, peak force significantly increased. SLR and ankle dorsiflexion increased immediately in the gastrocnemius group; KEA improved significantly only after two days. It is possible that certain muscles react differently when KT is applied, and the effect may be subsequently detected.

Journal Reference:  http://www.bodyworkmovementtherapies.com/article/S1360-8592(13)00137-X/abstract