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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

PREDICTING PUNCHING ACCELERATION FROM SELECTED STRENGTH AND POWER VARIABLES IN ELITE KARATE ATHLETES: A MULTIPLE REGRESSION ANALYSIS

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Author(s):
Loturco, Irineu [1, 2, 3] ; Artioli, Guilherme Giannini [2, 4] ; Kobal, Ronaldo [1] ; Gil, Saulo [5, 1] ; Franchini, Emerson [2]
Total Authors: 5
Affiliation:
[1] NAR Nucleus High Performance Sport, Sao Paulo - Brazil
[2] Univ Sao Paulo, Sch Phys Educ & Sport, Martial Arts & Combat Sports Res Grp, BR-05508 Sao Paulo - Brazil
[3] Brazilian Karate Confederat, Sao Paulo - Brazil
[4] Univ Sao Paulo, Sch Phys Educ & Sport, Lab Appl Nutr & Metab, BR-05508 Sao Paulo - Brazil
[5] Univ Sao Paulo, Sch Phys Educ & Sport, Sao Paulo - Brazil
Total Affiliations: 5
Document type: Journal article
Source: JOURNAL OF STRENGTH AND CONDITIONING RESEARCH; v. 28, n. 7, p. 1826-1832, JUL 2014.
Web of Science Citations: 30
Abstract

Loturco, I, Artioli, GG, Kobal, R, Gil, S, and Franchini, E. Predicting punching acceleration from selected strength and power variables in elite karate athletes: A multiple regression analysis. J Strength Cond Res 28(7): 1826-1832, 2014-This study investigated the relationship between punching acceleration and selected strength and power variables in 19 professional karate athletes from the Brazilian National Team (9 men and 10 women; age, 23 +/- 3 years; height, 1.71 +/- 0.09 m; and body mass {[} BM], 67.34 +/- 13.44 kg). Punching acceleration was assessed under 4 different conditions in a randomized order: (a) fixed distance aiming to attain maximum speed (FS), (b) fixed distance aiming to attain maximum impact (FI), (c) self-selected distance aiming to attain maximum speed, and (d) self-selected distance aiming to attain maximum impact. The selected strength and power variables were as follows: maximal dynamic strength in bench press and squat-machine, squat and countermovement jump height, mean propulsive power in bench throw and jump squat, and mean propulsive velocity in jump squat with 40% of BM. Upper-and lower-body power and maximal dynamic strength variables were positively correlated to punch acceleration in all conditions. Multiple regression analysis also revealed predictive variables: relative mean propulsive power in squat jump (W.kg(-1)), and maximal dynamic strength 1 repetition maximum in both bench press and squat-machine exercises. An impact-oriented instruction and a self-selected distance to start the movement seem to be crucial to reach the highest acceleration during punching execution. This investigation, while demonstrating strong correlations between punching acceleration and strength-power variables, also provides important information for coaches, especially for designing better training strategies to improve punching speed. (AU)

FAPESP's process: 11/17059-2 - Effects of beta-alanine supplementation combined or not with sodium bicarbonate on intermittent anaerobic performance
Grantee:Guilherme Giannini Artioli
Support type: Scholarships in Brazil - Post-Doctorate