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Article

Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas

by
Dale M. Harris
1,2,*,
Kristina Kendall
3,
G. Gregory Haff
3,4 and
Christopher Latella
3,5
1
First Year College, Footscray Park Campus, Victoria University, Melbourne 3011, Australia
2
High Performance Department, Inspire Institute of Sport, Vidyanagar, Bellary 583275, India
3
Centre for Exercise and Sports Science Research, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Australia
4
Directorate of Sports, Exercise and Physiotherapy, University of Salford, Greater Manchester M5 4WT, UK
5
Neurophysiology Research Laboratory, Edith Cowan University, Joondalup 6027, Australia
*
Author to whom correspondence should be addressed.
Sports 2020, 8(2), 14; https://doi.org/10.3390/sports8020014
Submission received: 2 January 2020 / Revised: 23 January 2020 / Accepted: 24 January 2020 / Published: 28 January 2020

Abstract

The physical qualities that underpin successful junior judokas requires continuing investigation. We investigated the physical and physiological characteristics of junior national level judokas. We tested 25 (15 male, 10 female) Indian judokas for absolute and relative strength (back-squat and bench-press one-repetition maximum (1RM) as well as isometric handgrip), aerobic (RAMP test) and lower-body anaerobic power (Wingate 6-s sprint and countermovement jump), change-of-direction (5-0-5 test) and speed (30 m sprint). Athletes were grouped according to national-level competition placing (gold-medal winners (GM; n = 8), all medal winners (MW; n = 13), non-medallists (NM; n = 12), and NM plus silver and bronze; all others (AO; n = 17)). Stepwise discriminant function analysis determined characteristics likely to predict successful performance. Independent t-tests and effect size (Hedge’s g) analyses were performed between groups. GM demonstrated greater lower-body absolute (20.0%; g = 0.87, p = 0.046) and relative 1RM strength (21.0%; g = 0.87, p = 0.047), and greater lower-body absolute (25.4%; g=1.32, p=0.004) and relative (27.3%; g = 1.27, p = 0.005) anaerobic power compared to AO. Furthermore, anaerobic power can correctly predict 76.5% and 62.5% of AO and GM athletes, respectively. No differences were observed between MW and NM groups. The results suggest the importance of lower-body strength and power for junior national-level judokas and provides information for professionals working with these athletes.
Keywords: judo; combat sport; strength; power; martial arts; performance judo; combat sport; strength; power; martial arts; performance

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MDPI and ACS Style

Harris, D.M.; Kendall, K.; Haff, G.G.; Latella, C. Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas. Sports 2020, 8, 14. https://doi.org/10.3390/sports8020014

AMA Style

Harris DM, Kendall K, Haff GG, Latella C. Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas. Sports. 2020; 8(2):14. https://doi.org/10.3390/sports8020014

Chicago/Turabian Style

Harris, Dale M., Kristina Kendall, G. Gregory Haff, and Christopher Latella. 2020. "Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas" Sports 8, no. 2: 14. https://doi.org/10.3390/sports8020014

APA Style

Harris, D. M., Kendall, K., Haff, G. G., & Latella, C. (2020). Absolute and Relative Strength, Power and Physiological Characteristics of Indian Junior National-Level Judokas. Sports, 8(2), 14. https://doi.org/10.3390/sports8020014

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