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.

Bone status in professional cyclists.

Professional cycling combines extensive endurance training with non weight-bearing exercise, two factors often associated with lower bone mineral density (BMD). Therefore BMD was measured with dual-energy x-ray absorptiometry in 30 professional road cyclists (mean (SD) age: 29.1 (3.

Low bone mineral density and calcium intake in elite cyclists.

Aim: High physical activity is associated with larger bone mineral content (BMC) and density (BMD) in young males though competitive road cyclists have been reported to have similar or lower BMD than controls.

Methods: BMC and BMD were assessed in 73 highly trained (42 professional and 31 elite amateur) road cyclists (CYCLIST; age: 25.8+/-4.

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.