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Table 2.

Mean values of selected variables during hindlimb push

	Hindlimb push
Variable	Start	Min E_tot	End
E_tot (J kg^-1)	33.0±2.3	31.4±2.4	35.5±2.1
E_kin,COM,x (J kg^-1)	17.8±2.1	15.8±2.2	17.1±2.1
E_kin,COM,y (J kg^-1)	0.2±0.2	0.5±0.2	1.5±0.4
E_pot (J kg^-1)	13.7±0.6	14.1±0.5	16.4±0.4
E_rot (J kg^-1)	0.5±0.2	0.3±0.1	0.2±0.1
E_rest (J kg^-1)	0.8±0.2	0.6±0.2	0.4±0.1
ẋ_COM (m s^-1)	6.0±0.4	5.7±0.4	5.9±0.4

	Hindlimb push
Variable	Start	Min E_tot	End
E_tot (J kg^-1)	33.0±2.3	31.4±2.4	35.5±2.1
E_kin,COM,x (J kg^-1)	17.8±2.1	15.8±2.2	17.1±2.1
E_kin,COM,y (J kg^-1)	0.2±0.2	0.5±0.2	1.5±0.4
E_pot (J kg^-1)	13.7±0.6	14.1±0.5	16.4±0.4
E_rot (J kg^-1)	0.5±0.2	0.3±0.1	0.2±0.1
E_rest (J kg^-1)	0.8±0.2	0.6±0.2	0.4±0.1
ẋ_COM (m s^-1)	6.0±0.4	5.7±0.4	5.9±0.4

Values are means ± s.d. (N=23).

Abbreviations of variables as in Table 1.