Table 1

The five stages of the Chester step test and the oxygen cost estimates (VO₂) for varying step heights (m) and stepping rates (steps/min)

Stage	I	II	III	IV	V
Stepping rate	15	20	25	30	35
VO₂ (ml/kg/min)
0.15 m step	11	14	18	21	25
0.20 m step	12	17	21	26	29
0.25 m step	14	19	24	28	33
0.30 m step	16	21	27	32	37