PMID- 32218063 OWN - NLM STAT- MEDLINE DCOM- 20220324 LR - 20230819 IS - 1533-4287 (Electronic) IS - 1064-8011 (Linking) VI - 36 IP - 4 DP - 2022 Apr 1 TI - Relationships Between Punch Impact Force and Upper- and Lower-Body Muscular Strength and Power in Highly Trained Amateur Boxers. PG - 1019-1025 LID - 10.1519/JSC.0000000000003585 [doi] AB - Dunn, EC, Humberstone, CE, Franchini, E, Iredale, KF, and Blazevich, AJ. Relationships between punch impact force and upper- and lower-body muscular strength and power in highly trained amateur boxers. J Strength Cond Res 36(4): 1019-1025, 2022-This study examined the relationship between upper- and lower-body strength and power characteristics and punch performance in 28 highly trained male amateur boxers. Punch performance was assessed with a custom-built punch integrator using a 3-minute maximal effort punch test that contained straight- and bent-arm punches from the lead and rear hands. Peak punch force and force-time variables including impulse and rate of force development (RFD; calculated to various points) were assessed. Force, power, and RFD of the upper and lower body were assessed with countermovement bench throw, isometric bench push, countermovement jump (CMJ), and isometric midthigh pull (IMTP) tests. Correlation and regression analyses revealed significant (p < 0.05) relationships between peak punch force and forces measured in CMJ and IMTP tests. In addition, peak punch force was moderately and significantly correlated to body mass, but RFD in the lower body was not. Moreover, no meaningful relationships between punch performance characteristics and any upper-body strength or power parameter were identified. The results of this study show that lower-body strength but not RFD had a moderate to strong positive and significant correlation to peak punch force production. Although upper-body strength and power are expected to be important in boxing, they did not discriminate between boxers who punched with higher or lower peak force nor were they correlated to peak punch force. Training that improves lower-body strength without increasing total body mass (to maintain weight category) may positively influence punch capacity in highly trained amateur boxers. CI - Copyright (c) 2020 National Strength and Conditioning Association. FAU - Dunn, Emily C AU - Dunn EC AD - Center for Exercise and Sport Science Research, School of Medical and Health Science, Edith Cowan University, Joondalup, Western Australia, Australia. AD - Australian Institute of Sport Combat Center, Bruce, Australian Capital Territory, Australia; and. FAU - Humberstone, Clare E AU - Humberstone CE AD - Australian Institute of Sport Combat Center, Bruce, Australian Capital Territory, Australia; and. FAU - Franchini, Emerson AU - Franchini E AD - Australian Institute of Sport Combat Center, Bruce, Australian Capital Territory, Australia; and. AD - Martial Arts and Combat Sports Research Group, Sport Department, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil. FAU - Iredale, K Fiona AU - Iredale KF AD - Center for Exercise and Sport Science Research, School of Medical and Health Science, Edith Cowan University, Joondalup, Western Australia, Australia. FAU - Blazevich, Anthony J AU - Blazevich AJ AD - Center for Exercise and Sport Science Research, School of Medical and Health Science, Edith Cowan University, Joondalup, Western Australia, Australia. LA - eng PT - Journal Article PL - United States TA - J Strength Cond Res JT - Journal of strength and conditioning research JID - 9415084 SB - IM MH - *Boxing MH - Humans MH - Male MH - *Muscle Strength MH - Upper Extremity EDAT- 2020/03/29 06:00 MHDA- 2022/03/25 06:00 CRDT- 2020/03/29 06:00 PHST- 2020/03/29 06:00 [pubmed] PHST- 2022/03/25 06:00 [medline] PHST- 2020/03/29 06:00 [entrez] AID - 00124278-202204000-00020 [pii] AID - 10.1519/JSC.0000000000003585 [doi] PST - ppublish SO - J Strength Cond Res. 2022 Apr 1;36(4):1019-1025. doi: 10.1519/JSC.0000000000003585.