Serum amino acid responses to three different exercise sessions in male power athletes.

Background: The purpose of this study was to investigate serum amino acid responses to 3 different exercise sessions in male power athletes (sprinters and jumpers; n=11).

Methods: All subjects performed 2 running exercise sessions: a short run session (SRS) of 3 x 4 x 60 m with recoveries of 120 and 360 sec, and a long run session (LRS) of 20 sec runs with recoveries of 100 sec until exhaustion. Ten subjects performed a strength exercise session (SES) of 90 min.

Leucine supplementation and serum amino acids, testosterone, cortisol and growth hormone in male power athletes during training.

Objective: The purpose of the present study was to examine the effects of leucine supplementation on the amino acid and hormone profile during training.

Experimental Design: The study was a randomised double-blind cross-over study during 10 weeks of training.

Setting: The study occurred during a sport training period.

Comparative effects of exposure to different light sources (He-Ne laser, InGaAl diode laser, a specific type of noncoherent LED) on skin blood flow for the head.

Background And Objective: This study assessed the effects of optic stimuli emitted by three different light sources on head skin blood flow.

Materials And Methods: The irradiation effects of the He-Ne laser (632.8 nm, 10 mW, total energy appr.

Low power lasers in physical therapy: measurement of optical output power of devices.

This report outlines the most essential characteristics of low power lasers commonly used in physical medicine. The optical output power of two Helium-Neon (HeNe) lasers (CW scanner) and two collimated Infrared (IR) laser diodes was measured with a CoherentR Model 212 meter designed to measure output power and its power density. The energy of two collimated IR lasers was measured with a Laser Precision Energy Meter equipped with an RJP-735 probe.

Effects of the electrical stimulation of myofascial trigger points with tension headache.

The effects of electrical stimulation by simple pocket size stimulator were evaluated on myofascial trigger points by pain threshold (PTH) algometry. The study consisted 14 patients with 76 treated trigger points in randomly selected double blind cross-over study protocol. The effects of 30 seconds stimulation increased the PTH values 0.