Quantifying wrist angular excursion on impact for Jab and Hook lead arm shots in boxing

GATT, Ian, ALLEN, Thomas and WHEAT, Jonathan (2021). Quantifying wrist angular excursion on impact for Jab and Hook lead arm shots in boxing. Sports Biomech.

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Official URL: https://www.tandfonline.com/doi/full/10.1080/14763...
Open Access URL: https://www.tandfonline.com/doi/pdf/10.1080/147631... (Published version)
Link to published version:: https://doi.org/10.1080/14763141.2021.2006296


The hand region is reported as the most common injury site in boxing, with more observed time loss than any other area in this sport. The amount of wrist motion, specifically flexion, has been described as contributing to these injuries, yet no literature is available to quantify wrist kinematics in boxing. This is the first paper describing wrist motion on impact in boxing. Utilising an electromagnetic tracking system, two types of shots were assessed, Jab (straight arm) and Hook (bent arm), during in-vivo testing procedures with 29 elite boxers. For both shots, flexion and ulnar deviation occurred concurrent on impact, with an M and SD of 9.3 ± 1.9° and 4.7 ± 1.2° respectively for Jab shots, and 5.5 ± 1.1° and 3.3 ± 1.1° respectively for Hook shots, supporting dart throwing motion at the wrist. For both Jab &amp; Hook, wrist motion on impact occurred within >30% and >20% respectively of total available active range of motion, with wrist angles greater in both flexion (t = 9.0, p < 0.001, d = 1.7) and ulnar deviation (t = 8.4, p < 0.001, d = 1.6) for Jab compared to Hook shots. The study provides novel and quantifiable information regarding wrist kinematics during the impact phase of punching and potentially an improved understanding of injury mechanisms in boxing.

Item Type: Article
Uncontrolled Keywords: Boxing; dart throwing motion; electromagnetic tracking system; hand injuries; wrist kinematics; 0913 Mechanical Engineering; 1106 Human Movement and Sports Sciences; 1303 Specialist Studies in Education; Sport Sciences
Identification Number: https://doi.org/10.1080/14763141.2021.2006296
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 20 Dec 2021 13:03
Last Modified: 20 Dec 2021 13:15
URI: https://shura.shu.ac.uk/id/eprint/29458

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