Table 3. Changes in performance variables over the course of the training period. Values represent mean (±standard deviation).
Pre Post Change (%)
VO2max (ml·kg·-1min-1) Mask 44.8 (6.4) 52.2 (7.5)# + 16.5
Control 43.6 (6.2) 49.5 (7.0)# + 13.5
PPO (watts) Mask 276.1 (61.8) 313.5 (69.4)# + 13.6
Control 282.5 (52.0) 310.4 (56.0)# + 9.9
VT (ml/kg/min) Mask 29.4 (8.1) 33.5 (7.0)# + 14.0
Control 29.1 (3.6) 29.7 (6.9) + 2.1
PO at VT (watts) Mask 162.5 (63.5) 193.8 (51.3)# + 19.3
Control 158.3 (38.9) 172.9 (48.2) + 9.2
RCT (ml·kg·-1min-1)
Mask 39.1 (8.1) 43.1 (7.2)# + 10.2*
Control 39.2 (5.8) 39.6 (6.0) + 1.0
PO at RCT (watts) Mask 243.4 (62.4) 283.3 (75.6)# + 16.4*
Control 262.5 (57.9) 272.9 (52.7) + 4.0
Maximal Heart Rate
Mask 187 (10.4) 187 (8.5) + 0.0
Control 186 (10.7) 186 (9.8) + 0.0
# Significantly different than pretest (p<0.05).
*Change significantly different than control group (p<0.05).