Table 3: Parameters of oxygen uptake response during moderate exercise as a function of exercise modality (muscle group involved) (mean ± SD).

VariableKayakersCyclists
LegsaArmsbLegcArmd

(L/min) 0.46 ± 0.04 0.46 ± 0.09 0.41 ± 0.07 0.40 ± 0.10
(L/min) 1.99 ± 0.34cd1.94 ± 0.40cd2.85 ± 0.33abd1.50 ± 0.38ac
(L/min) 1.54 ± 0.34cd1.45 ± 0.36cd2.45 ± 0.38abd1.03 ± 0.26abc
(mL O2/min/W) 14.35 ± 1.11 13.6 ± 2.21 14.38 ± 0.84 14.5 ± 3.83
(sec) 16.50 ± 2.6bd18.81 ± 3.7ac 14.90 ± 2.7bd19.70 ± 3.6ac
MRT (sec) 22.62 ± 3.1bcd 26.73 ± 8.9ad 25.76 ± 4.9d 40.90 ± 5.6abc
O2D (mL) 34.6 ± 11.9c39.4 ± 11.5c61.2 ± 17.4abd40.7 ± 15.3c
Relative O2D (mL O2/min/W) 323.2 ± 97d363.2 ± 92d 370.3 ± 90d 594.5 ± 155abc

Like letters denote significant difference ( ).
: average value over the two min of resting baseline; : rate of oxygen uptake at steady state level; : the asymptotic amplitude for the exponential term; : time constant of primary phase; MRT: mean VO2 response time; O2D: calculated oxygen deficit; G: relative (to work rate) gain of the VO2 response; Relative O2D: O2 deficit normalized to work rate.