Table 2. Methodologies for assessing the VO kinetic response to heavy and severe intensity exercise in children. |
| Author |
Sex |
N |
Age (y) |
Step change |
Sampling interval |
Quantification method |
No of transitions |
Confidence interval |
| Robinson (1938) |
M
M |
8
10 |
6.0
10.5 |
Treadmill to exhaustion |
30s |
% of peak VO2 after 30s |
1 |
|
| Mácek and Vavra (1977) |
M
M
M
M |
10
14
23
6 |
10
12
15
17 |
Treadmill to exhaustion |
30s |
% of peak VO2 after 30s |
1 |
|
| Mácek and Vávra (1980) |
M |
10 |
10-11 |
Cycle to exhaustion |
30s |
% of peak VO2 after 30s |
1 |
|
| Sady (1981) |
M |
21 |
10.2 (.3) |
Cycle - 110% VO2max |
15s |
t ½ |
1 |
|
| Zanconato et al. (1991) |
M+F |
10 |
9.0 (1.3) |
BL – 50% D
BL – 100% peakVO2
BL – 125% peak VO2
|
BB |
1min t½ |
1 |
|
| Armon et al. (1991) |
M+F |
6 |
6 – 12 |
BL – 25% D
BL – 50% D
BL – 75% D |
BB |
Model 4, σ1 = σ2, t > 0s |
1 |
|
| Obert et al. (2000) |
M+F |
23 |
10-13 |
BL – 90% max power |
BB |
Model 4, t > phase 1 |
1 |
|
| Williams et al (2001) |
M |
8 |
12 (.2) |
Rest – 50% D |
BB |
Model 5, t > 0s |
2 |
|
| Hebestreit et al (1998) |
M |
9 |
11.1 (1.2) |
20W-100% peak VO2
20W – 130% peakVO2
|
BB |
Model 2, t > phase1 |
2 |
|
| Fawkner and Armstrong (2004c) |
M
F |
13
9 |
10.6 (.3)
10.9 (.2) |
BL – 40% TVent |
BB |
Model 2, phase 1 < t <onset of SC |
3-4 |
σ < ± 5s
A1 < ± 5% |
| Fawkner and Armstrong (2004a) |
M
F |
25
23 |
10.6 (.3)
10.7 (.7) |
BL – 40% TVent |
BB |
Model 2, phase 1 < t <onset of SC |
3-4 |
Mean σ , 4.3 ± 1.3s
Mean A1, 3.0 ± 1.3 % |
|
Abbreviations: L = baseline pedalling; D = difference between anaerobic threshold had peak VO; = ventilatory threshold; 𝜏 = time constant; A1 = primary amplitude; for model details see text. |
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