Mechanical Demands at the Ankle Joint During Saut de Chat and Temps levé Jumps in Classically Trained Ballet Dancers

Figures & data

Figure 1 Experimental set-up for the saut de chat (SDC) jump.

Figure 2 Experimental set-up for the temps levé (TL) jump.

Figure 3 Representative normalized vertical GRF data during the take-off phase for both jumps.

Figure 4 Representative net ankle joint moment during the take-off phase for both jumps. Positive moments are plantarflexor.

Figure 5 Representative net ankle joint power during the take-off phase for both jumps.

Table 1 Kinetic Variables for the Take-off Phase of SDC and TL

	Saut de chat	Temps levé	t-Value	p	Cohen’s d
Peak vertical force (N/kg)	23.2 ± 2.7	21.2 ± 2.3	t14=3.53	0.003*	0.914
Mean RFD (N/kg/s)	103.3 ± 35.6	74.4 ± 17.8	t14=3.83	0.002*	0.987
Flight time (s)	0.35 ± 0.04	0.32 ± 0.05	t14=3.37	0.005*	0.869
Peak ankle moment (Nm/kg)	3.03 ± 0.40	2.61 ± 0.38	t13=4.68	<0.001*	1.238
Peak ankle power (W/kg)	20.7 ± 4.7	15.6 ± 3.5	t13=8.53	<0.001*	2.290

Notes: *Denotes significant difference (p<0.05). Data presented as mean ± 1 standard deviation.