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. 2018 Sep 5;118(12):2563–2576. doi: 10.1007/s00421-018-3981-1

Fig. 3.

Fig. 3

Interaction between speed and angle on absolute V˙O2, displaying SEM. ‘Asterisk’ indicates a significant difference in energy expenditure of turning relative to straight-line walking at 5.5 km h− 1 (p < 0.006)