Bone Mineral Density and Sports Participation

Influential role of lean soft tissue in the association between training volume and bone mineral density among male adolescent practitioners of impact-loading sports: ABCD Growth study

“…On every day of measurement, a researcher checked the quality status of the scanner before performing the evaluation. The participants wore light clothes and took off any metal accessories (e.g., rings, necklaces, and ear rings) [ 12 , 28 ]. The measurement was performed in the supine position for approximately 15 min [ 12 , 28 ].…”

“…The participants wore light clothes and took off any metal accessories (e.g., rings, necklaces, and ear rings) [ 12 , 28 ]. The measurement was performed in the supine position for approximately 15 min [ 12 , 28 ]. The radiation dose applied is lower than 0.05mrem [ 29 ] with potentially minimal harm to the adolescent’s health.…”

“…A single whole-body DXA assessment was performed. Region of interest (ROIs) analysis of aBMD in the upper limbs, lower limbs, spine, and whole body occurred offline after the scans, using the DXA software, following the General Electric Health recommendations and previous studies based [ 27 , 28 ] on the anatomical points:…”

“…The medial boundary of the ROI (separation of the trunk) was made in the midline of the glenohumeral joint and the lateral boundary defined comprising all soft tissues (the same for right and left sides). [ 28 , 30 ]. - Lower limbs ROI: Lower limbs: measured considering the position of the line passing through the lower edge of the ischium.…”

“…The lateral and medial lines defined comprised all soft tissues (the same for right and left sides). [ 28 , 30 ]. - Spine ROI: Measured from the posterior-superior edge of the iliac crest (L4/L5 level) to the lower edge of the chin.…”