Rôle prédictif de l'activité physique sur la force musculaire du sujet âgé

Content Provider	Semantic Scholar
Author	Vuillemin, Anne Tessier, Andrée Messin, Lydia
Copyright Year	2002
Abstract	Objective: to study the relationship between body composition, knee isokinetic muscle strength, and physical activity over lifetime and during specific age periods in healthy elderly men and women aged 60 years and over. Methods: peak torque measurement of right and left knee extensors and flexors were realized using a Biodex dynamometer in 25 men (age: 70.3 ± 7.1 years) and 49 women (age: 70.0 ± 6.3 years). Physical activity was measured using QUANTAP, a computer-assisted questionnaire designed to quantify lifetime physical activity. Relationship between peak torque and physical activity was studied in multiple regression models including following variables: sex, age, height, weight, lean mass, and interaction between sex and age and sex and lean mass. Results: whatever the model considered, lean mass and age explain muscular performance. Past year, past 20 years and lifetime sport activity explain peak torque of the knee (R2 = 0.71, 0.69 and 0.68 respectively). Conclusion: Aging is associated with decreased muscle strength resulting in an increased risk of dependent living. These data suggests that physical activity over lifetime contribute to preserve muscular performance with advancing age.
Starting Page	33
Ending Page	44
Page Count	12
File Format	PDF HTM / HTML
Volume Number	41
Alternate Webpage(s)	http://documents.irevues.inist.fr/bitstream/handle/2042/28188/ALS_2002_1-2_33.pdf?sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article