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Nicole C.A. Strock, Kristen J. Koltun, Emily A. Southmayd, Nancy I. Williams and Mary Jane De Souza

to specifically use lean body mass to estimate RMR ( Cunningham, 1980 ). Whether or not the use of lean body mass and fat-free mass interchangeably may impact the result of predicted RMR and RMR ratio is unknown. Most recently, dual-energy X-ray absorptiometry (DXA) modeling, based on tissue

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D. Enette Larson-Meyer, Kathleen Woolf and Louise Burke

errors and must be consistent with repeated measurements • Compared to UWW, may underestimate % body fat in some group of athletes and overestimate % body fat in others b • Estimate of thoracic gas volume can cause additional errors Dual energy x-ray absorptiometry (DXA): SEE = 2–3% mc h Passes filtered

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purpose of this study was to develop a predict equation to calculate body fat percentage in youth soccer athletes from skinfold measurements, considering dual energy X-ray absorptiometry (DXA) values as a reference. Eighty-one males aged 15 to 26 years old (18±2 years; 73.0±8.2 kg; 1.80±1.7 m) from four

Open access

by a newly developed sport-specific questionnaire and clinical interview (SEAQ-I), received dual energy X-ray absorptiometry (DXA) bone mineral density (BMD) and body composition scans and blood tests for endocrine markers. Low EA as assessed using the SEAQ-I, was observed in 28% of cyclists. Low

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medications. Dual energy x-ray absorptiometry scan showed low bone density with L1-4 Z-score -1.8. Serum calcium and Vitamin D were within normal limits. She was treated for her fractures and returned to activity. Discussion regarding her endocrine management plan was put on hold when she left for a 6 month

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Mark Messina, Heidi Lynch, Jared M. Dickinson and Katharine E. Reed

were assessment of maximal muscular strength (upper body or lower body) and assessments of LBM. Strength was measured as one-repetition maximum (in kilograms) in all studies that assessed changes in muscle strength. LBM was assessed via dual-energy X-ray absorptiometry in four studies ( Candow et