Performance Determinants in Short (68 km) and Long (121 km) Mountain Ultra-Marathon Races

Abstract

Background Standard performance parameters measured during a laboratory test have been shown to be related to mountain ultra-marathon performance up to a competition length of 75 km. It is not known if a similar relationship exists for longer races. Objective This study aimed to investigate the association between laboratory-based performance parameters and performance times in a short (68 km) and a long (121 km) mountain ultra-marathon. Materials and Methods Eleven male finishers of the short race and seven male finishers of the long race were investigated. Participants performed an incremental exercise test to exhaustion in the 2 weeks prior to the event. During the event, the heart rate was monitored and finishing times were registered. Results The maximal oxygen consumption and the oxygen uptake at the ventilatory thresholds 1 and 2 were related to performance time during the short run (∼12h; r = -0.764 up to r = -0.782; p < 0.05), but there was no correlation during the long race (∼28h; r = -0.107 to 0.357; p > 0.05). Conclusions This study shows that physical fitness parameters established in a laboratory setting determine competition completion times in ultra-mountain marathon events lasting for ∼12 h. During longer races, i. e. ∼28 h, other factors not established in the present investigation, such as experience, race strategy, coping with pain and fatigue resistance, may be important for performance.