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Validity of skinfold-based measures for tracking changes in body composition in professional rugby league players
- Publication Year :
- 2016
- Publisher :
- Human Kinetics Publishers Inc., 2016.
-
Abstract
- High levels of lean mass are important in collision-based sports for the development of strength and power, which may also assist during contact situations. While skinfold-based measures have been shown to be appropriate for cross-sectional assessments of body composition, their utility in tracking changes in lean mass is less clear.Purpose:To determine the most effective method of quantifying changes in lean mass in rugby league athletes.Methods:Body composition of 21 professional rugby league players was assessed on 2 or 3 occasions separated by ≥6 wk, including bioelectrical impedance analysis (BIA), leanmass index (LMI), and a skinfold-based prediction equation (SkF). Dual-X-ray absorptiometry provided a criterion measure of fat-free mass (FFM). Correlation coefficients (r) and standard errors of the estimate (SEE) were used as measures of validity for the estimates.Results:All 3 practical estimates exhibited strong validity for cross-sectional assessments of FFM (r > .9, P < .001). The correlation between change scores was stronger for the LMI (r = .69, SEE 1.3 kg) and the SkF method (r = .66, SEE = 1.4 kg) than for BIA (r = .50, SEE = 1.6 kg).Conclusions:The LMI is probably as accurate in predicting changes in FFM as SkF and very likely to be more appropriate than BIA. The LMI offers an adequate, practical alternative for assessing in FFM among rugby league athletes.
- Subjects :
- Adult
Male
medicine.medical_specialty
muscle
Football
Physical Therapy, Sports Therapy and Rehabilitation
League
bone
Young Adult
03 medical and health sciences
Absorptiometry, Photon
0302 clinical medicine
Fat free mass
fat
Electric Impedance
medicine
Humans
Orthopedics and Sports Medicine
030212 general & internal medicine
skin and connective tissue diseases
Mathematics
DXA
Anthropometry
biology
Athletes
nutritional and metabolic diseases
030229 sport sciences
biology.organism_classification
Skinfold Thickness
Standard error
Body Composition
Lean body mass
Physical therapy
Tracking (education)
sense organs
team sports
Bioelectrical impedance analysis
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....471b1ee138a6a40ccaf55b4a8cbc6c63