Table 9.
Heart rate, per cent of maximal heart rate (%HRmax), per cent of heart rate reserve (%HRR), ventilation, ventilatory equivalent (VE · VO2−1), blood lactate and rated perceived exertion (RPE) in walking commuting (mean, SD and 95% CI).
| Walking commuters | Heart rate | Per cent of maximal heart rate | Per cent of heart rate reserve | Ventilation (BTPS) | Ventilatory equivalent | Breathing frequency | Tidal volume |
Blood lactate |
Rated perceived exertion leg |
Rated perceived exertion breathing |
|---|---|---|---|---|---|---|---|---|---|---|
|
beats ·min−1 |
% | % | L ·min−1 | L ·L−1 |
breaths ·min−1 |
L | mmol ·L−1 | |||
| Men (n = 10) |
113 16 (102–124) |
61.3 8.1 (55.6–67.1) |
35.5 12.3 (26.8–44.3) |
39.1 10.3 (31.8–46.5) |
25.9 2.6 (24.1–27.8) |
23.4 4.4 (20.3–26.5) |
1.67 0.29 (1.46–1.88) |
1.02 0.48 (0.67–1.36) |
10.7 1.3 (9.8–11.6) |
11.2 1.8 (9.9–12.5) |
| Women (n = 10) |
111 10 (104–118) |
63.7 6.1 (59.4–68.1) |
44.2 8.2 (38.3 – 50.1) |
31.2* 5.2 (27.5–34.9) |
26.4 3.2 (24.1–28.7) |
25.0 3.9 (22.2–27.8) |
1.26* 0.22 (1.10–1.42) |
1.24 0.46 (0.88–1.59) |
8.70* 1.57 (7.58–9.82) |
9.40* 1.58 (8.27–10.53) |
*
Significant differences (p < 0.05) between men and women. %HRmax and %HRR are calculated on the basis of HRmax in ergometer cycling. The corresponding values in relation to HRmax in treadmill running were: 61.2 ± 8.3 (55.2–67.1) for the men, and 61.9 ± 5.1 (58.3–65.5) for the women (%HRmax). %HRR were 35.4 ± 12.3 (26.6–44.2) for the men, and 42.2 ± 7.4 (36.9–47.5) for the women. The blood lactate values for the women are based on 9 participants.