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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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Petter Fagerberg

amount of exercise (predefined and controlled amount of exercise and self-reports); objective measurements of body composition and FFM (e.g., dual-energy X-ray absorptiometry [DEXA] hydrostatic weighing, magnetic resonance imaging, skinfolds, or four-compartment model); and outcomes showing effects on

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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

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affiliated with the Mexican Olympic Committee were recruited. A convenience sample of 10 male athletes (mean age = 24 ± 4 y) participated in the study. Body composition was measured by anthropometry (ANT), bioelectrical impedance analysis (BIA), and dual-energy X-ray absorptiometry (DXA). Energy consumption

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Eric Tsz-Chun Poon, John O’Reilly, Sinead Sheridan, Michelle Mingjing Cai, and Stephen Heung-Sang Wong

 al., 2009 ). Bone Health Assessment Bone Mineral Density Dual-energy X-ray absorptiometry (DXA) scanning (EXA-3000; OsteoSys, Seoul, South Korea) was used to measure the BMD of the forearms (cortical bone) and calcaneus (trabecular bone) at both sides, as previously described by our research group ( O

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Samantha L. Winter, Sarah M. Forrest, Joanne Wallace, and John H. Challis

anthropometric parameters using dual energy X-ray absorptiometry: the influence on net joint moments during gait . Clin Biomech . 2004 ; 19 ( 1 ): 50 – 56 . PubMed doi:10.1016/j.clinbiomech.2003.08.002 10.1016/j.clinbiomech.2003.08.002 2. Pearsall DJ , Costigan PA . The effect of segment parameter error

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Sherry Robertson and Margo Mountjoy

within athlete-monitoring programs by FINA, as well as national sport governing bodies Note . RED-S = relative energy deficiency in sport; CHO = carbohydrate; EA = energy availability; LEA = low energy availability; PHE = periodic health examination; DEXA = dual-energy X-ray absorptiometry; DE

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Louise M. Burke, Graeme L. Close, Bronwen Lundy, Martin Mooses, James P. Morton, and Adam S. Tenforde

energy availability; DXA = dual-energy X-ray absorptiometry; RED-S = Relative Energy Deficiency in Sport; RMR = resting metabolic rate; EA = energy availability. RED-S in Male Road Cyclists Road cyclists may have LEA resulting from the sustained high energy expenditure combined with the challenges of

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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