Physical Activity Enhances Metabolic Fitness Independently of Cardiorespiratory Fitness in Marathon Runners
Table 2
(mL/kg/min)
(mL/kg FFM/min)
Predicted
(k/h)
Lactate threshold (k/h)
RE (mL O2/kg/km)
Resting HR (bpm)
Similar-
Controls
46.3 ± 1.6
58.2 ± 1.6
39.2 ± 2.4
13.2 ± 0.6
10.1 ± 0.5
234.2 ± 6.9
58 ± 2
Runners
48.5 ± 1.2#
62.5 ± 1.4#
51.6 ± 4.4#∧
15.7 ± 0.5#∧
13.0 ± 0.6#∧
205.7 ± 8.8#∧
50 ± 3#
Different-
Controls
40.2 ± 2.2
54.2 ± 1.8
36.9 ± 3.5
11.8 ± 0.6
8.2 ± 0.5
224.4 ± 3.5
59 ± 3
Runners
57.5 ± 2.2#∧
69.9 ± 2.2#∧
57.3 ± 4.0#∧
17.2 ± 0.9#∧
14.5 ± 0.5#∧
210.8 ± 5.1#∧
47 ± 3#∧
All data presented as mean ± SEM. # indicates significant effect of marathon running. ∧ indicates post hoc difference in runner versus control within either similar or divergent group. = ventilation of maximum oxygen consumption, FFM = fat-free mass, = velocity at , k/h = kilometers per hour, RE = running economy, HR = heart rate, and bpm = beats per a minute.
