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Predictors of Repeated High-Intensity-Effort Ability in Rugby League Players.
- Source :
- International Journal of Sports Physiology & Performance; Sep2015, Vol. 10 Issue 6, p718-724, 7p, 1 Diagram, 2 Charts, 1 Graph
- Publication Year :
- 2015
-
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 micro-technology 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- ARM physiology
LEG physiology
PHYSIOLOGICAL effects of acceleration
ANALYSIS of variance
ATHLETIC ability
CARDIOPULMONARY system
STATISTICAL correlation
EXERCISE physiology
EXERCISE tests
GEOGRAPHIC information systems
MUSCLE strength testing
PHYSICAL fitness
PROBABILITY theory
RUGBY football
RUNNING
STATISTICS
T-test (Statistics)
WEARABLE technology
DATA analysis
STATISTICAL reliability
EFFECT sizes (Statistics)
COOLDOWN
ELITE athletes
REPEATED measures design
OXYGEN consumption
EXERCISE intensity
DESCRIPTIVE statistics
Subjects
Details
- Language :
- English
- ISSN :
- 15550265
- Volume :
- 10
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- International Journal of Sports Physiology & Performance
- Publication Type :
- Academic Journal
- Accession number :
- 109127858
- Full Text :
- https://doi.org/10.1123/ijspp.2014-0127