Immediate effects of various physical therapeutic modalities on cervical myofascial pain and trigger-point sensitivity.

Objective: To investigate the immediate effect of physical therapeutic modalities on myofascial pain in the upper trapezius muscle.

Design: Randomized controlled trial.

Setting: Institutional practice.

Effects of a calcium channel blocker on electrical activity in myofascial trigger spots of rabbits.

Objective: This study investigated the effect of a calcium channel blocking agent, verapamil, on the spontaneous electrical activity (SEA) in a myofascial trigger spot of biceps femoris muscles of rabbits.

Design: Left and right legs of eight adult New Zealand rabbits were randomly assigned into either experimental or control groups to assess the effect of verapamil on SEA. Verapamil and normal saline were injected into the external iliac artery for experimental and control groups, respectively.