Table 2.  Intensities (VO2mean, % VO2max, VE mean, HR mean) and coefficients of determinations (rČsession) from the relations VO2 = f (VE) and VO2 = f (HR). Data are means (±SD).
Part 1: Physical activities with oxygen consumption steady state
     

Intensities

   

session

 
 

Subjects (n = 12)

VO2mean

% VO2max

VE mean

HRmean

  VO2 = f (VE)

VO2 = f (HR)

Group 1

  20 % VO2max
< I < 55 % VO2max
20 walks : 3 min

1.45 (.54)

33.4 (10.8)

30.3 (10.2)

96 (18)

.87 (**)

.61

Group 2

17 % VO2max
< I < 62 % VO2max
26 walks : 6 min

1.42 (.56)

33.5 (13.1)

30.7 (12.3)

92 (19)

.80 (**)

.50


Part 2: Physical activities
without oxygen consumption steady state
     

Intensities

   

session

 
 

Subjects (n = 12)

VO2mean

% VO2max

VE mean

HRmean

VO2 = f (VE)

VO2 = f (HR)

Group 3

  13 % VO2max
< I < 40 % VO2max
22 walks : 1 min

1.05 (.32)

24.2 (7.6)

23.6 (6.5)

89 (12)

.82 (**)

.63

Group 4

  40 % VO2max
< I < 60 % VO2max
12 intermittent work

2.02 (.20)

47.1 (4.5)

46.0 (4.7)

114 (13)

.82 (*)

.73

VO2mean: Mean oxygen uptake (l·min-1), SD: Standard deviation, % VO2max: Percentage of maximum oxygen uptake, VE mean : Mean ventilation (l·min-1), HRmean : Heart rate (beats·min-1), VO2: oxygen uptake (l.min-1), VE: Ventilation (l.min-1), HR : heart rate (beats.min-1), I : intensity. * and ** denote p < 0.05 and 0.01 respectively.