[Preventive effects of exercise training on bone loss during 21 d -6 degrees head down bed-rest].
Space Med Med Eng (Beijing)
; 16(2): 96-9, 2003 Apr.
Article
em Zh
| MEDLINE
| ID: mdl-12830833
ABSTRACT
OBJECTIVE:
To observe the protective effects of exercise training during 21 d -6 degrees head down bed rest (HDBR) on bone loss.METHOD:
Ten healthy young men were randomly divided into HDBR group and HD-BR exercise group, with 5 in each group. Both groups were exposed to -6 degrees head down bed rest for 21 d. The subjects in the exercise group performed exercise with a bicycle ergometer in supine position 1 h/d during bed rest. Femur bone mineral density (BMD), serum bone gla protein (BGP) as well as hydroxyproline/creatinine (HOP/Cr) were determined before and during 20 d HDBR.RESULT:
As compared with the before HDBR values, average femur BMD decreased by 5.8% and 0.9% for HDBR group and HDBR and exercise group respectively. HOP/Cr significantly increased in the HDBR group and was significantly higher than the HDBR exercise group. BGP decreased in both groups with no significant difference.CONCLUSION:
Exercise during 21 d -6 degrees HDBR is beneficial in preventing bone loss.
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Base de dados:
MEDLINE
Assunto principal:
Densidade Óssea
/
Simulação de Ausência de Peso
/
Contramedidas de Ausência de Peso
/
Decúbito Inclinado com Rebaixamento da Cabeça
/
Desmineralização Patológica Óssea
/
Terapia por Exercício
Limite:
Adolescent
/
Adult
/
Humans
/
Male
Idioma:
Zh
Revista:
Space Med Med Eng (Beijing)
Assunto da revista:
ENGENHARIA BIOMEDICA
/
MEDICINA AEROESPACIAL
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
China