Table 1. Descriptive responses for selected physiological variables and ratings of perceived exertion (mean ± SD) and percentage of increment regarding previous pedalling cadencies stages along the maximal load incremental test.
Pedalling cadence stages
Pedalling cadence (bpm) 100 115 130 145 160 175 190
VO2max (L/min)
Δ%
1.07 (0.18) 1.39 (0.21)*
29.90
1.73 (0.21)*
24.46
2.13 (0.22)*
23.12
2.60 (0.38)*
22.06
3.24 (0.47)*
24.61
3.55 (0.48)#
9.57
VO2 (ml/kg/min)
Δ%
14.26 (2.66) 18.50 (3.35)*
29.73
22.95 (3.36)*
24.05
28.28 (3.03)*
23.22
34.42 (4.54)*
21.71
42.98 (6.85)*
24.86
46.89 (5.64)#
9.10
VE (L/min)
Δ%
23.17 (5.11) 30.56 (4.70)*
31.89
40.82 (5.50)*
33.57
52.20 (5.51)*
27.88
68.73 (9.79)*
31.66
97.03 (12.92)*
41.78
138.57 (13.12)*
42.81
HR (bpm)
Δ%
99.54 (14.98) 105(18)
5.56
116(23)
10.17
133(20)*
14.81
149(21)*
11.98
162(24)*
8.9
173(28)*
6.93
BL (mM)
Δ%
1.18 (0.43) 2.68 (1.03)
97.32
11.15 (2.22)*
88.85
11.63 (1.63)*
88.37
ACS RPE
Δ%
1.11 (0.33) 2.22 (0.83)*
100
3.1 (0.78)*
39.64
4.5 (0.73)*
45.16
6.22 (0.97)*
32.22
7.67 (0.71)*
23.31
9.33 (0.50)*
21.64
Borg Scale RPE
Δ%
7.55 (0.88) 9.33* (0.87)
23.58
11.33 (1.12)*
21.44
13.22 (1.20)*
16.68
15.22 (0.97)*
15.13
17.00 (0.71)*
11.69
19.00 (0.71)*
11.76
SD: standard deviation. bpm: beats per minute. Δ%: increment percentage regarding value of the previous stage. The Δ% was calculated with the standard formula: change (%) = [(value of the pedalling cadence stage – value of the previous pedalling cadence stage) / value of the previous pedalling cadence stage] x 100. VO2max: maximum oxygen consumption. VO2: oxygen uptake taking in account bodyweight; VE: pulmonary ventilation. HR: heart rate. BL: blood lactate. RPE: overall body rating perceived exertion from Borg or Aquatic Cycling scales (ACS).
*: Significant difference (p < 0.05) regarding value of the previous stage.
#: Trend of difference (p= 0.12) regarding previous stage.