Comparison of Catecholamine Values Before and After Exercise-Induced Bronchospasm in Professional Cyclists.

Background: The concentration of circulating catecholamine increases during exercise in healthy athletes, but the variation has not been studied much in athletes who develop exercise-induced bronchospasm. This study measured changes in circulating catecholamine levels using the induced maximal effort test in the laboratory in professional cyclists sensitive to bronchospasm.

Materials And Methods: This experimental study included 86 professional cyclists.

Is osteopenia a health risk in professional cyclists?

Bone mineral content (BMC) and bone mineral density (BMD) were measured by dual-energy X-ray absorptiometry Lunar DPX-NT, SV 4.0 in 23 professional male cyclists (age: 28.5+/-3.

Relationship between %HRmax, %HR reserve, %VO2max, and %VO2 reserve in elite cyclists.

Purpose: To evaluate the relations between %HRmax, %HRR, %VO2max, and %VO2R in elite cyclists and to check whether the intensity scale recommended by ACSM in its 1998 position stand is also applicable to this specific population.

Methods: Twenty-six male elite road cyclists (25.1 +/- 0.