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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mosti, Mats P. Carlsen, Trude Aas, Elisabeth Hoff, Jan Stunes, Astrid K. Syversen, Unni |
| Description | Country affiliation: Norway Author Affiliation: Mosti MP ( Departments of 1Cancer Research and Molecular Medicine) |
| Abstract | -Exercise guidelines highlight maximizing bone mass early in life as a strategy to prevent osteoporosis. Which intervention is most effective for this purpose remains unclear. This study investigated the musculoskeletal effects of high acceleration, maximal strength training (MST), in young adult women. Thirty healthy women (22 ± 2 years) were randomly assigned to a training group (TG) and a control group (CG). The TG completed 12 weeks of squat MST, executed at 85-90% of maximal strength 1 repetition maximum (1RM), emphasizing progressive loading and high acceleration in the concentric phase. The CG was encouraged to follow the American College of Sports Medicine's exercise guidelines for skeletal health. Measurements included bone mineral density (BMD) and body composition by dual-energy X-ray absorptiometry, dynamic and isometric rate of force development (RFD), and squat 1RM. Serum levels of type 1 collagen amino-terminal propeptide (P1NP), type 1 collagen C breakdown products (CTX), and sclerostin were analyzed by immunoassays. In the TG, lumbar spine and total hip BMD increased by 2.2 and 1.0%, whereas serum P1NP increased by 26.2%. Dynamic RFD and 1RM improved by 81.7 and 97.7%, and isometric RFD improved by 38% at 100 milliseconds. These improvements were significantly greater than those observed in the CG. Within the CG, dynamic RFD and 1RM increased by 27.2 and 12.9% while no other significant changes occurred. These findings suggest that squat MST may serve as a simple, time-efficient strategy to optimize peak bone mass in early adulthood. |
| File Format | HTM / HTML |
| ISSN | 10648011 |
| Issue Number | 10 |
| Volume Number | 28 |
| e-ISSN | 15334287 |
| Journal | Journal of Strength and Conditioning Research |
| Language | English |
| Publisher | Lippincott Williams & Wilkins |
| Publisher Date | 2014-10-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Sport Sciences Bone Density Muscle, Skeletal Physiology Physical Conditioning, Human Resistance Training Methods Absorptiometry, Photon Body Composition Bone Morphogenetic Proteins Blood Collagen Type I Metabolism Female Genetic Markers Humans Muscle Strength Peptide Fragments Procollagen Young Adult Journal Article Randomized Controlled Trial Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
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