Athletic performance in speed-skating is supposed to be related to the force level which corresponds with the onset of anaerobiosis. Using gas exchange parameters during bicycle ergometry, we have elucidated the importance of the AerT and the AnT, in particular AnT, for speed-skaters in endurance events (1988). No study has been performed concerning lactate threshold (LT) and onset of blood lactate accumulation (OBLA) during speed-skating on the ice. In order to investigate the feasibility of LT and OBLA during speed-skating and its relations to performance, 19 male collegiate speed-skaters volunteered for the study. LT and OBLA were determined during a series of 9 bouts of 1000 m skating with incremental modes of speeds (m・s⁻¹) in an indoor 333 m oval. Maximal oxygen uptake (VO₂max) was obtained during teadmill running. The velocity at which LT (V-LT) and OBLA (V-OBLA) occured during skating were greater in all-rounders (AL ; n= 9) than in sprinters (SP ; n= 10, NS). AL's VO₂max (ml・kg⁻¹・min⁻¹) was significantly higher than SP's.
　Of the parameters examined, only VO₂max was significantly related to skating performance. V-LT (r= 0.55, P< 0.05) and V-OBLA (r= 0.73, P< 0.001) were related to training volume prior to the test. It might be suggested that neither LT nor OBLA are directly related to athletic performance in speed-skating.

DESCENTE SPORTS SCIENCE Vol.11/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE