Predictors of repeated high-intensity-effort ability in rugby league players

Gabbett, Tim J. and Wheeler, Aaron J. (2015) Predictors of repeated high-intensity-effort ability in rugby league players. International Journal of Sports Physiology and Performance, 10 (6). pp. 718-724. ISSN 1555-0265

Abstract

Purpose: To investigate the relationship between repeated high-intensity-effort (RHIE) ability and selected physical qualities in rugby league players. Methods: Sixteen rugby league players underwent measurements of upper-body strength (4-repetition-maximum [4RM] bench press, weighted chin-up, weighted dips), upper-body muscle endurance (body-mass maximum-repetition chin-up, body-mass maximum-repetition dips), lower-body strength (4RM squat), estimated maximal aerobic power (multistage fitness test), and RHIE ability. The RHIE-ability test consisted of 1 x 10-m sprint, 3 x full-contact 1-on-1 tackling efforts, and a 30-m jog recovery. Players performed 4 repetitions of the test, with each repetition completed in 40 second. During the RHIE test, player speed was evaluated with a 10-m sprint effort while the movement of players was recorded using a wearable microtechnology device. 2D Player Load was used to quantify the collision component of the test. Results: Speed decrement was lower for the first- (-2.4% ± 1.0%) than the second-grade (-4.7% ± 2.1%) players. Players with greater initial speed had a higher average speed over the 4 sprints (r = .75), while players with greater maximum-repetition dips maintained a higher 2D Player Load (r = .76). Conclusions: These findings demonstrate a relationship between well-developed acceleration and upper-body muscle-endurance qualities and RHIE ability in rugby league players. Training programs designed to develop acceleration and upper-body muscle endurance are likely to improve RHIE ability.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 30 May 2017 04:12
Last Modified: 30 May 2017 04:12
Uncontrolled Keywords: collision; contact sport; repeated sprint; tackling; acceleration; adult; athletes; athletic performance; biomechanical phenomena; competitive behavior; exercise test; football; geographic information systems; humans; male; motor activity; muscle fatigue; muscle strength; muscle, skeletal; physical endurance; recovery of function; running; task performance and analysis; time factors; young adult
Fields of Research : 11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Socio-Economic Objective: C Society > 92 Health > 9299 Other Health > 929999 Health not elsewhere classified
Identification Number or DOI: 10.1123/ijspp.2014-0127
URI: http://eprints.usq.edu.au/id/eprint/32283

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