The effects of whole body vibration training and vitamin D supplementation on muscle strength, muscle mass and bone density in institutionalised elderly women - A 6-month randomised controlled trial.
Summary of "The effects of whole body vibration training and vitamin D supplementation on muscle strength, muscle mass and bone density in institutionalised elderly women - A 6-month randomised controlled trial."
Sarcopenia and osteoporosis represent a growing public health problem. We studied the potential benefit of whole body vibration (WBV) training given a conventional or a high dose of daily vitamin D supplementation in improving strength, muscle mass and bone density in postmenopausal women.In a 2 x 2 factorial-design trial 113 institutionalised elderly females aged >70 years (mean age 79.6) were randomly assigned, either to a WBV or a no-training group, receiving either a conventional dose (880 IU/d) or a high dose (1600 IU/d) of vitamin D3. The primary aim was to determine the effects of 6 months of WBV and/or vitamin D supplementation on isometric and dynamic strength, leg muscle mass and hip BMD. Additionally, the increase in 25(OH)D levels between conventional and high dose supplementation was compared.After 6 months of treatment, dynamic muscle strength, hip BMD, and vitamin D serum levels improved significantly in all groups while isometric strength and muscle mass did not change. When compared to no-training, the WBV programme did not result in additional improvements. When compared to 880 IU, a high dose of 1600 IU of vitamin D did result in higher serum vitamin D levels but did not result in additional improvements.In institutionalised women above 70, the WBV training protocol tested is not more efficient in enhancing muscle mass, strength and hip BMD compared with vitamin D supplementation. A higher dose of 1600 IU of vitamin D does not provide additional musculoskeletal benefit in this population compared with conventional doses. (c) 2010 American Society for Bone and Mineral Research.
Division of Musculoskeletal Rehabilitation, Department of Rehabilitation Sciences.
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Medical and Biotech [MESH] Definitions
Vitamin E Deficiency
A nutritional condition produced by a deficiency of VITAMIN E in the diet, characterized by posterior column and spinocerebellar tract abnormalities, areflexia, ophthalmoplegia, and disturbances of gait, proprioception, and vibration. In premature infants vitamin E deficiency is associated with hemolytic anemia, thrombocytosis, edema, intraventricular hemorrhage, and increasing risk of retrolental fibroplasia and bronchopulmonary dysplasia. An apparent inborn error of vitamin E metabolism, named familial isolated vitamin E deficiency, has recently been identified. (Cecil Textbook of Medicine, 19th ed, p1181)
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
Enzyme Replacement Therapy
Therapeutic replacement or supplementation of defective or missing enzymes to alleviate the effects of the enzyme deficiency (e.g., GLUCOSYLCERAMIDASE replacement for GAUCHER DISEASE).
Financial support for training including both student stipends and loans and training grants to institutions.
Vitamin D Deficiency
A nutritional condition produced by a deficiency of VITAMIN D in the diet, insufficient production of vitamin D in the skin, inadequate absorption of vitamin D from the diet, or abnormal conversion of vitamin D to its bioactive metabolites. It is manifested clinically as RICKETS in children and OSTEOMALACIA in adults. (From Cecil Textbook of Medicine, 19th ed, p1406)
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