Head, Neck, Trunk, and Pelvis Tissue Mass Predictions for Young Adults Using Anthropometric Measures and Dual-Energy X-Ray Absorptiometry
| Autor: | Charles Kahelin, Danielle L. Gyemi, Nicole C. George, David M. Andrews |
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| Rok vydání: | 2017 |
| Předmět: |
Male
0206 medical engineering Biophysics 02 engineering and technology Pelvis Young Adult 03 medical and health sciences Absorptiometry Photon 0302 clinical medicine Predictive Value of Tests Humans Medicine Orthopedics and Sports Medicine Young adult Dual-energy X-ray absorptiometry Anthropometry medicine.diagnostic_test business.industry Rehabilitation Torso 030229 sport sciences Anatomy Stepwise regression Explained variation 020601 biomedical engineering Trunk medicine.anatomical_structure Body Composition Lean body mass Female business Head Neck |
| Zdroj: | Journal of Applied Biomechanics. 33:366-372 |
| ISSN: | 1543-2688 1065-8483 |
| Popis: | Accurate prediction of wobbling mass (WM), fat mass (FM), lean mass (LM), and bone mineral content (BMC) of living people using regression equations developed from anthropometric measures (lengths, circumferences, breadths, skinfolds) has previously been reported, but only for the extremities. Multiple linear stepwise regression was used to generate comparable equations for the head, neck, trunk, and pelvis of young adults (38 males, 38 females). Equations were validated using actual tissue masses from an independent sample of 13 males and 13 females by manually segmenting full-body dual-energy x-ray absorptiometry scans. Prediction equations exhibited adjusted R2 values ranging from .249 to .940, with more explained variance for LM and WM than BMC and FM, especially for the head and neck. Mean relative errors between predicted and actual tissue masses ranged from −11.07% (trunk FM) to 7.61% (neck FM). Actual and predicted tissue masses from all equations were significantly correlated (R2 = .329 to .937), except head BMC (R2 = .046). These results show promise for obtaining in-vivo head, neck, trunk, and pelvis tissue mass estimates in young adults. Further research is needed to improve head and neck FM and BMC predictions and develop tissue mass prediction equations for older populations. |
| Databáze: | OpenAIRE |
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