74% of surfers have external auditory exostoses

Objective  To determine (1) the prevalence of external auditory exostoses in a population of surfers and (2) the relationship between the length of time spent surfing and the prevalence, severity, and location of the exostoses. Design  Cross-sectional epidemiological...

Heart rate kinetics in paddle training

In lower body exercise, the percentage of the heartrate reserve is equivalent to the percentage of the oxygen consumption reserve. In upper body exercise a given heartrate reserve was found not to be equivalent to its oxygen consumption reserve. Therefore the autors...