COMPARISON OF MAXIMAL AEROBIC SPEED AS ASSESSED WITH LABORATORY AND FIELD-MEASUREMENTS IN MODERATELY TRAINED SUBJECTS

In order to compare the Maximal Aerobic Speed (MAS) evaluated with dif ferent methods, eleven male physical education students (22.2 +/- 3.0 years) were submitted to a maximal treadmill protocol and to the Unive rsite de Montreal Track Test (UMTT). Four methods were used to calcula te MAS. After treadmill measurement of VO(2)max, MAS was calculated (M AS_calc) by the following formula: MAS_calc = (VO(2)max-0.083)/C, wher e VO(2)max is the maximal oxygen uptake (ml . kg(-1). s(-1)) and C the energy cost of running (ml . kg(-1). m(-1)). The extrapolated MAS (MA S_ex) was obtained from the measured VO(2)max and by extrapolation of the VO2 versus speed relationship. The MAS for treadmill measurement ( MAS_tr) and for UMTT (MAS_(UMTT)) were the velocities at the last comp leted stages. The average MAS_calc (4.71 +/- 0.48 m . s(-1)), MAS_ex ( 4.62 +/- 0.48 m . s(-1)), MAS_tr (4.75 +/- 0.57 m . s(-1)) and MAS_(UM TT) (4.64 +/- 0.35 m . s(-1)) were not significantly different and wer e significantly correlated, between 0.85 (MAS_ex vs MAS_(UMTT)) and 0. 99 (MAS_calc vs MAS_tr), with p < 0.001 in both cases. MAS measurement s were significantly correlated to measured VO(2)max but independent o f C.