Maximal oxygen uptake and running velocity at a blood lactate concentration of 4 mmol/l differed markedly among elite male runners specializing in different racing distances.
Cross-Sectional (n=29)
Elite runners specializing in different distances exhibit distinct physiological profiles, particularly in maximal oxygen uptake and running velocity at a 4 mmol/l blood lactate concentration.
Physiological characteristics of elite runners from different racing events were studied. Twenty-seven middle- and long-distance runners and two 400-m runners belonging to the Swedish national team in track and field were divided, according to their distance preferences, into six groups from 400 m up to the marathon. The maximal oxygen uptake (VO2 max, ml X kg-1 X min-1) on the treadmill was higher the longer the main distance except for the marathon runners (e.g., 800-1500-m group, 72.1; 5000-10,000-m group, 78.7 ml X kg-1 X min-1). Running economy evaluated from oxygen uptake measurements at 15 km/h (VO2 15) and 20 km/h (VO2 20) did not differ significantly between the groups even though VO2 15 tended to be lower in the long-distance runners. The running velocity corresponding to a blood lactate concentration of 4 mmol/l (vHla 4.0) differed markedly between the groups with the highest value (5.61 m/s) in the 5000-10,000-m group. The oxygen uptake (VO2) at vHla 4.0 in percentage of VO2 max did not differ significantly between the groups. The blood lactate concentration after exhaustion (VO2 max test) was lower in the long-distance runners. In summary, the present study demonstrates differences in physiological characteristics of elite runners specializing in different racing events. The two single (but certainly inter-related) variables in which this was most clearly seen were the maximal oxygen uptake (ml X kg-1 X min-1) and the running velocity corresponding to a blood lactate concentration of 4 mmol/l.
Svedenhag et al. (Mon,) conducted a cross-sectional in Elite male runners (n=29). Racing event distance preference vs. Other distance preferences was evaluated on Maximal oxygen uptake (VO2 max) and running velocity at blood lactate 4 mmol/l. Maximal oxygen uptake and running velocity at a blood lactate concentration of 4 mmol/l differed markedly among elite male runners specializing in different racing distances.