Table 5.

Absolute and scaled $\dot{V}{\text{O}}_{\text{2}}$ models

	Absolute $\dot{V}{\text{O}}_{\text{2}}$ (l min− 1)			Scaled $\dot{V}{\text{O}}_{\text{2}}$ (l kg− 0.79 min− 1)
	Estimate (β)	SE	Sig.	Estimate (β)	SE	Sig.
Parameter	Speed
5.5 km h−1	0.23	0.03	0.007	13.87	1.95	0.00a
4.5 km h−1	0.14	0.02	0.00a	8.78	1.48	0.00a
3.5 km h−1	0.07	0.02	0.002a	4.06	1.19	0.00a
2.5 km h−1	1.00	–	–	1.00	–	–
Parameter	Angle
180°	0.02	0.02	0.38	1.26	1.39	0.37
90°	0.03	0.02	0.10	2.68	1.17	0.03
45°	0.10	0.02	0.62	0.89	1.20	0.46
0°	1.00	–	–	1.00	–	–
Parameter	Speed × angle
Speed 5.5 × angle 180°	0.14	0.05	0.005a	8.84	2.89	0.003a
Speed 5.5 × angle 90°	− 0.32	0.04	0.48	− 1.95	2.65	0.46
Speed 5.5 × angle 45°	− 0.02	0.04	0.67	− 1.01	2.60	0.70
Speed 5.5 × angle 0°	1.00	–	–	1.00	–	–
Speed 4.5 × angle 180°	0.05	0.04	0.17	3.59	2.27	0.12
Speed 4.5 × angle 90°	− 0.03	0.03	0.40	− 2.11	2.06	0.31
Speed 4.5 × angle 45°	− 0.02	0.03	0.50	− 1.33	2.07	0.52
Speed 4.5 × angle 0°	1.00	–	–	1.00	–	–
Speed 3.5 × angle 180°	0.41	0.03	0.19	2.77	1.82	0.13
Speed 3.5 × angle 90°	− 0.02	0.03	0.52	− 1.15	1.66	0.49
Speed 3.5 × angle 45°	− 0.02	0.03	0.57	− 1.58	1.73	0.36
Speed 3.5 × angle 0°	1.00	–	–	1.00	–	–
Parameter	Sex
Girl	− 0.02	0.01	0.01	− 1.48	0.55	0.008
Boy	1.00	–	–	1.00	–	–
Parameter	Covariates
Stature	0.00	0.00	0.00a	0.08	0.04	0.04
Peak $\dot{V}{\text{O}}_{\text{2}}$	0.08	0.02	0.00a	–	–	–
Scaled $\dot{V}{\text{O}}_{\text{2}}$peak	–	–	–	− 0.01	0.01	0.32

Reference values speed 2.5 km h^− 1 and angle set at 0°. ‘×’ Indicates interaction

^aSignificant effect at (p < 0.006)