Muscular Maximal Strength Indices and Bone Variables in a Group of Elderly Women |
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| Institution: | 1. Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands;2. Department of Surgery, VieCuri Medical Centre, Venlo, the Netherlands;3. NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands;4. Department of Internal Medicine, Subdivision of Endocrinology, VieCuri Medical Centre, Venlo, the Netherlands;5. Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands;6. Department of Orthopaedic Surgery, Research School CAPHRI, Maastricht University Medical Centre, Maastricht, the Netherlands;7. Faculty of Medicine, Hasselt University, Belgium;8. Department of Orthopaedic Surgery, VieCuri Medical Centre, Venlo, the Netherlands;9. Department of Surgery and Trauma Surgery, Maastricht University Medical Centre, Maastricht, the Netherlands;1. Bone Metabolism Laboratory, Rheumatology Division, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil;2. Department of Preventive Medicine, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil;1. New Mexico Clinical Research & Osteoporosis Center, Albuquerque, NM, USA;2. University of Colorado School of Medicine, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Aurora, CO, USA;1. Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA;2. Department of Physical Therapy, University of Alabama, Birmingham, AL, USA;3. Department of Kinesiology, University of Georgia, Athens, GA, USA;4. Department of Orthopedics, Nemours AI duPont Hospital for Children, Wilmington, DE, USA |
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| Abstract: | The aim of the present study was to explore the relations between muscular maximal strength indices and bone parameters (bone mineral density BMD], hip geometry indices, and trabecular bone score TBS]) in a group of elderly women. This study included 35 healthy elderly women whose ages range between 65 and 75 yr (68.1 ± 3.1 yr). BMD (in gram per square centimeter) was determined for each individual by dual-energy X-ray absorptiometry at the whole body, lumbar spine (L1–L4), total hip (TH), and femoral neck (FN). L1–L4 TBS and hip geometry indices were also evaluated by dual-energy X-ray absorptiometry. Maximal muscle strength of bench press (1-repetition maximum RM] bench press), maximal muscle strength of leg press (1-RM leg press), and handgrip were measured using validated methods. 1-RM bench press was positively correlated to TH BMD (r = 0.40; p < 0.05), FN BMD (r = 0.41; p < 0.05), FN section modulus (r = 0.33; p < 0.05), and FN cross-sectional moment of inertia (r = 0.35; p < 0.05). 1-RM leg press was positively correlated to TH BMD (r = 0.50; p < 0.01), FN BMD (r = 0.35; p < 0.05), FN cross-sectional area (r = 0.38; p < 0.05), and TBS (r = 0.37; p < 0.05). Handgrip was correlated only to FN cross-sectional moment of inertia (r = 0.43; p < 0.01). This study suggests that 1-RM bench press and 1-RM leg press are positive determinants of BMD in elderly women. |
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