ABSTRACT
For these reasons, the treadmill has often been used in investigations into the VO2 of running (eg. Bransford and Howley, 1977; Duggan, 1989; Epstein et al., 1987). The direct applicability of data from such investigations to overground running is supported by the studies of McMiken and Daniels (1976) and
Bassett et al. (1985) in which no difference was found between VO2 of overground and treadmill running at the same speed. On the other hand, the validity of generalising from treadmill running to overground running is brought into question by studies which have reported energy expenditure on a treadmill to be less than on a track during running (Pugh, 1970) and less than on a road during walking (Daniels et al., 1953).
