From: The assessment of the kinematics of the rescuer in continuous chest compression during a 10-min simulation of cardiopulmonary resuscitation
α
cos(α)
F
0°
1
1 × F
5°
0.9962
0.9962 × F
10°
0.9848
0.9848 × F
15°
0.9659
0.9659 × F
20°
0.9397
0.9397 × F
25°
0.9063
0.9063 × F