Journal of Sports Medicine & Doping Studies

Objective: Doping in sports now seems to be more widespread despite testing. The objective is to assess the effectiveness and cost effectiveness of the current anti-doping system.

The aim of this experiment was to test the effect of brief exercise on the concentration of plasma hypocretin-1, a peptide that regulates many physiological variables. Blood samples were collected from participants (men, n=6) before (time 0 min) and after (times 15 and 30 min) a cycle ergo meter exercise at 75 W for 15 min. The physical exertion was monitored by heart rate registration. The exercise causes a significant increase in plasmatic hypocretin-1, in association with an increase of hearth rate. These results are the first demonstration, which indicates that plasma hypocretin-1 is involved in the reactions induced by physical activity.

Throwing arm injuries are common, especially in overhead or throwing sports. They can lead to loss of performance, periods of time off the court or even surgery. This review article discusses the anatomy and biomechanics of the shoulder, in order to explain how we can avoid these injuries and improve performance.

Objectives: The effect of performance enhancing drugs on historic performance records in sport is open to interpretation and needs empirical support. Here we addressed this contentious issue by assessing whether a double sigmoidal model could detect decrements in sporting performance attributed to introduction of drug testing protocols.