The Advantage of Standing Up to Fight and the Evolution of Habitual Bipedalism in Hominins
Figure 2
Illustrations of the pendulum transducer used to measure the energy imparted during maximum effort vertically directed strikes from (A) quadrupedal and (B) bipedal posture.
The starting posture of the subject and position of the transducer are shown in black. Body posture and the swing of the transducer after the strike are illustrated with grey.