Journal
BRITISH JOURNAL OF SPORTS MEDICINE
Volume 39, Issue 10, Pages 710-719Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bjsm.2004.014126
Keywords
-
Categories
Ask authors/readers for more resources
Objective: The biomechanics of the head for punches to the jaw and the risk of head injury from translational and rotational acceleration were studied. Methods: Seven Olympic boxers from five weight classes delivered 18 straight punches to the frangible face of the Hybrid III dummy. Translational and rotational head acceleration, neck responses, and jaw pressure distribution were measured. High speed video recorded each blow and was used to determine punch velocity. Equilibrium was used to determine punch force, energy transfer, and power. Results: Punch force averaged 3427 ( standard deviation (SD) 811) N, hand velocity 9.14 ( SD 2.06) m/s, and effective punch mass 2.9 ( SD 2.0) kg. Punch force was higher for the heavier weight classes, due primarily to a higher effective mass of the punch. Jaw load was 876 ( SD 288) N. The peak translational acceleration was 58 ( SD 13) g, rotational acceleration was 6343 ( SD 1789) rad/s(2), and neck shear was 994 ( SD 318) N. Conclusions: Olympic boxers deliver straight punches with high impact velocity and energy transfer. The severity of the punch increases with weight class.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available