Abstract des Autors

This study was conducted to investigate the influence of fitness
level and gradually increased amounts of exercise on indiciduals'
ratings of perceived exertion (RPE). 20 men served as paid
subjects. They were divided into groups of high (>56ml/kg/min.)
and low fitness (<46 ml/kg/min.) according to their maximal
oxygen uptake (VO2max). Participants were required to pedal on
a cycle ergometer at a progressively increased workload (every 10
min.) corresponding to 40, 50, 60, 70, and 80% of individual
VO2max values. Heart rates, RPR, and core temperatures were
recorded every 5th minute after the initiation of exercising at a
specific workload. Analysis indicated that, when controlling for
VO2max values, elevations of heart rate and core temperature
were not affected by fitness. However, highly fit individuals
perceived themselves under loss exertion than did the group low
in fitness. Correlations showed that, taking into consideration
fitness, there is a stronger relationship between RPE and heart
rate and RPE and core temperature for the highly fit individuals
than for the less fit. Verf.-Referat