Bone mineral density in athletes during and after career: a comparison between loaded and unloaded skeletal regions
(1996) In Calcified Tissue International 59(4). p.245-248- Abstract
- Bone mineral density (BMD) was measured in the upper part of the skull, the femoral neck, and the total body by dual energy X-ray absorptiometry in 56 male and 33 female active athletes, 18-40 years of age, together with 64 male ex-weight lifters, 35-79 years of age. The active athletes were compared with 41 male and 54 female controls, the ex-weight lifters with 133 male controls. The purpose of the study was to see if BMD in the upper part of the skull, a region virtually unaffected by physical load, is different in athletes and controls. The male athletes had a 3% higher BMD for the total body and 12% for the hip, whereas the BMD for the upper part of the skull was 10% lower than controls. Corresponding BMD values for the female... (More)
- Bone mineral density (BMD) was measured in the upper part of the skull, the femoral neck, and the total body by dual energy X-ray absorptiometry in 56 male and 33 female active athletes, 18-40 years of age, together with 64 male ex-weight lifters, 35-79 years of age. The active athletes were compared with 41 male and 54 female controls, the ex-weight lifters with 133 male controls. The purpose of the study was to see if BMD in the upper part of the skull, a region virtually unaffected by physical load, is different in athletes and controls. The male athletes had a 3% higher BMD for the total body and 12% for the hip, whereas the BMD for the upper part of the skull was 10% lower than controls. Corresponding BMD values for the female athletes were 4% higher for total body and 10% for the femoral neck, and the upper part of the skull was 7% lower than in controls. After 65 years of age there was no difference in BMD comparing ex-weightlifters and controls. Using a constructed ratio BMD total body to BMD upper part of the skull, the ex-weight lifters had 10% higher values also after age 65. It appears that bone mass is higher in weight-loaded areas and lower in an unloaded region, such as the upper part of the skull, in exercising athletes. After cessation of the active career, the bone mass approaches that of the controls and after 65 years of age, no difference was found comparing ex-weight lifters and controls. Due to the apparent bone mass shift from unloaded skeletal regions to loaded skeletal regions that seems to take place in active athletes, the constructed ratio, BMD total body to BMD upper part of the skull, seems to discriminate the influence on the skeleton in a more sensitive way than measuring the BMD in defined skeletal regions on their own. By using this constructed ratio, the influence on bone mass of physical exercise early in life is also detectable at older ages. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1110393
- author
- Karlsson, M K LU ; Hasserius, Ralph LU and Obrant, Karl LU
- publishing date
- 1996
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Athletes, Bone mineral density, Dual energy x-ray absorptiometry, Ex-athletes, Physical activity, Unloaded, Weight-loaded
- in
- Calcified Tissue International
- volume
- 59
- issue
- 4
- pages
- 245 - 248
- publisher
- Springer
- external identifiers
-
- pmid:8781046
- scopus:0029849175
- ISSN
- 1432-0827
- DOI
- 10.1007/s002239900117
- language
- English
- LU publication?
- no
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Clinical and Molecular Osteoporosis Research Unit (013242930), Reconstructive Surgery (013240300)
- id
- fb7f51ef-f371-45b0-a71e-d3ee32015183 (old id 1110393)
- date added to LUP
- 2016-04-01 16:55:11
- date last changed
- 2022-01-28 23:06:34
@article{fb7f51ef-f371-45b0-a71e-d3ee32015183,
abstract = {{Bone mineral density (BMD) was measured in the upper part of the skull, the femoral neck, and the total body by dual energy X-ray absorptiometry in 56 male and 33 female active athletes, 18-40 years of age, together with 64 male ex-weight lifters, 35-79 years of age. The active athletes were compared with 41 male and 54 female controls, the ex-weight lifters with 133 male controls. The purpose of the study was to see if BMD in the upper part of the skull, a region virtually unaffected by physical load, is different in athletes and controls. The male athletes had a 3% higher BMD for the total body and 12% for the hip, whereas the BMD for the upper part of the skull was 10% lower than controls. Corresponding BMD values for the female athletes were 4% higher for total body and 10% for the femoral neck, and the upper part of the skull was 7% lower than in controls. After 65 years of age there was no difference in BMD comparing ex-weightlifters and controls. Using a constructed ratio BMD total body to BMD upper part of the skull, the ex-weight lifters had 10% higher values also after age 65. It appears that bone mass is higher in weight-loaded areas and lower in an unloaded region, such as the upper part of the skull, in exercising athletes. After cessation of the active career, the bone mass approaches that of the controls and after 65 years of age, no difference was found comparing ex-weight lifters and controls. Due to the apparent bone mass shift from unloaded skeletal regions to loaded skeletal regions that seems to take place in active athletes, the constructed ratio, BMD total body to BMD upper part of the skull, seems to discriminate the influence on the skeleton in a more sensitive way than measuring the BMD in defined skeletal regions on their own. By using this constructed ratio, the influence on bone mass of physical exercise early in life is also detectable at older ages.}},
author = {{Karlsson, M K and Hasserius, Ralph and Obrant, Karl}},
issn = {{1432-0827}},
keywords = {{Athletes; Bone mineral density; Dual energy x-ray absorptiometry; Ex-athletes; Physical activity; Unloaded; Weight-loaded}},
language = {{eng}},
number = {{4}},
pages = {{245--248}},
publisher = {{Springer}},
series = {{Calcified Tissue International}},
title = {{Bone mineral density in athletes during and after career: a comparison between loaded and unloaded skeletal regions}},
url = {{http://dx.doi.org/10.1007/s002239900117}},
doi = {{10.1007/s002239900117}},
volume = {{59}},
year = {{1996}},
}