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High thigh muscle strength but not bone mass in young horseback-riding females
Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
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1998 (Engelska)Ingår i: Calcified Tissue International, ISSN 0171-967X, E-ISSN 1432-0827, Vol. 62, nr 6, s. 497-501Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

To evaluate whether the type of weight-bearing loading subjected to the skeleton during horseback-riding was associated with differences in bone mass and muscle strength of the thigh, we investigated bone mass and isokinetic muscle strength in 20 female horse riders (age 17.9 +/- 0.6 years) who were riding 7.0 +/- 3.4 hours/week, and 20 nonactive females (age 17.8 +/- 1.1 years). The groups were matched according to age, weight, and height. Areal bone mineral density was measured in total body, head, lumbar spine, right femoral neck, Ward's triangle, and trochanter, the whole dominant and nondominant humerus, and in specific sites in the right femur diaphysis, distal femur, proximal tibia, and tibia diaphysis using dual X-ray absorptiometry. Isokinetic concentric and eccentric peak torque of the quadricep and hamstring muscles were measured using an isokinetic dynamometer. There were no significant differences in bone mass between the horseback riders and nonactives at any site measured. The horse riders were significantly (P < 0.05-0.01) stronger in concentric hamstrings strength at 90 degrees/second and 225 degrees/second and in eccentric quadricep and hamstring strength at 90 degrees/second. Horseback riding in young females is associated with a high muscle strength of the thigh, but not with a high bone mass.

Ort, förlag, år, upplaga, sidor
Springer , 1998. Vol. 62, nr 6, s. 497-501
Nyckelord [en]
bone mass, muscle strength, horse-riding females
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
URN: urn:nbn:se:umu:diva-35350DOI: 10.1007/s002239900468PubMedID: 9576976OAI: oai:DiVA.org:umu-35350DiVA, id: diva2:343428
Tillgänglig från: 2010-08-13 Skapad: 2010-08-13 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

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Alfredson, HåkanNordström, PeterLorentzon, Ronny

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