Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats

Little information exists about the effects of swimming exercise on bone health in ovariectomized animals with estrogen deficiency, which resembles the postmenopausal state and age-related bone loss in humans. This study investigated the effects of swimming exercise on tibia and femur bone mineral...

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Main Authors: Foong, Kiew Ooi, Norsyam, Wan Mohd, Ghosh, Asok Kumar, Sulaiman, Siti Amrah, Chee, Keong Chen, Hung, Leung Kim
Format: Article
Published: Elsevier 2014
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Online Access:http://eprints.usm.my/38905/
https://doi.org/10.1016/j.jesf.2014.09.001
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spelling my.usm.eprints.38905 http://eprints.usm.my/38905/ Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats Foong, Kiew Ooi Norsyam, Wan Mohd Ghosh, Asok Kumar Sulaiman, Siti Amrah Chee, Keong Chen Hung, Leung Kim RM Therapeutics. Pharmacology Little information exists about the effects of swimming exercise on bone health in ovariectomized animals with estrogen deficiency, which resembles the postmenopausal state and age-related bone loss in humans. This study investigated the effects of swimming exercise on tibia and femur bone mineral density (BMD), geometry, and microstructure in sham and ovariectomized rats. Forty 3-month-old female rats were divided into four groups: sham operated-sedentary control (Sham-control), sham operated with swimming exercise group (Sham-Swim), ovariectomysedentary control (OVx-control), and ovariectomy and swimming exercise (OVx-Swim) groups. Swimming sessions were performed by the rats 90 minutes/day for 5 days/week for a total of 8 weeks. At the end of the study, tibial and femoral proximal volumetric total BMD, midshaft cortical volumetric BMD, cross-sectional area, and cross-sectional moment of inertia (MOI), and bone microstructural properties were measured for comparison. Data were analyzed using one-way analysis of variance (ANOVA). The Sham-Swim group exhibited significantly ( p < 0.05; one-way ANOVA) greater values in bone geometry parameters, that is, tibial midshaft cortical area and MOI compared to the Sham-control group. However, no significant differences were observed in these parameters between the Ovx-Swim and Ovx-control groups. There were no significant differences in femoral BMD between the Sham-Swim and Sham-control groups. Nevertheless, the Ovx-Swim group elicited significantly ( p < 0.05; one-way ANOVA) higher femoral proximal total BMD and improved bone microstructure compared to the Ovx-Sham group. In conclusion, the positive effects of swimming on bone properties in the ovariectomized rats in the present study may suggest that swimming as a non- or low-weight-bearing exercise may be beneficial for enhancing bone health in the postmenopausal population. Elsevier 2014-12 Article PeerReviewed Foong, Kiew Ooi and Norsyam, Wan Mohd and Ghosh, Asok Kumar and Sulaiman, Siti Amrah and Chee, Keong Chen and Hung, Leung Kim (2014) Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats. Journal of Exercise Science and Fitness, 12 (2). pp. 80-87. ISSN 1728-869X https://doi.org/10.1016/j.jesf.2014.09.001
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
topic RM Therapeutics. Pharmacology
spellingShingle RM Therapeutics. Pharmacology
Foong, Kiew Ooi
Norsyam, Wan Mohd
Ghosh, Asok Kumar
Sulaiman, Siti Amrah
Chee, Keong Chen
Hung, Leung Kim
Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
description Little information exists about the effects of swimming exercise on bone health in ovariectomized animals with estrogen deficiency, which resembles the postmenopausal state and age-related bone loss in humans. This study investigated the effects of swimming exercise on tibia and femur bone mineral density (BMD), geometry, and microstructure in sham and ovariectomized rats. Forty 3-month-old female rats were divided into four groups: sham operated-sedentary control (Sham-control), sham operated with swimming exercise group (Sham-Swim), ovariectomysedentary control (OVx-control), and ovariectomy and swimming exercise (OVx-Swim) groups. Swimming sessions were performed by the rats 90 minutes/day for 5 days/week for a total of 8 weeks. At the end of the study, tibial and femoral proximal volumetric total BMD, midshaft cortical volumetric BMD, cross-sectional area, and cross-sectional moment of inertia (MOI), and bone microstructural properties were measured for comparison. Data were analyzed using one-way analysis of variance (ANOVA). The Sham-Swim group exhibited significantly ( p < 0.05; one-way ANOVA) greater values in bone geometry parameters, that is, tibial midshaft cortical area and MOI compared to the Sham-control group. However, no significant differences were observed in these parameters between the Ovx-Swim and Ovx-control groups. There were no significant differences in femoral BMD between the Sham-Swim and Sham-control groups. Nevertheless, the Ovx-Swim group elicited significantly ( p < 0.05; one-way ANOVA) higher femoral proximal total BMD and improved bone microstructure compared to the Ovx-Sham group. In conclusion, the positive effects of swimming on bone properties in the ovariectomized rats in the present study may suggest that swimming as a non- or low-weight-bearing exercise may be beneficial for enhancing bone health in the postmenopausal population.
format Article
author Foong, Kiew Ooi
Norsyam, Wan Mohd
Ghosh, Asok Kumar
Sulaiman, Siti Amrah
Chee, Keong Chen
Hung, Leung Kim
author_facet Foong, Kiew Ooi
Norsyam, Wan Mohd
Ghosh, Asok Kumar
Sulaiman, Siti Amrah
Chee, Keong Chen
Hung, Leung Kim
author_sort Foong, Kiew Ooi
title Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
title_short Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
title_full Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
title_fullStr Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
title_full_unstemmed Effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
title_sort effects of short-term swimming exercise on bone mineral density, geometry, and microstructural properties in sham and ovariectomized rats
publisher Elsevier
publishDate 2014
url http://eprints.usm.my/38905/
https://doi.org/10.1016/j.jesf.2014.09.001
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score 13.211869