Effects of a low-volume, vigorous intensity step exercise program on functional mobility in middle-aged adults.
Ann Biomed Eng
; 41(8): 1748-57, 2013 Aug.
Article
in En
| MEDLINE
| ID: mdl-23568151
ABSTRACT
Aging-related decline in functional mobility is associated with loss of independence. This decline may be mitigated through programs of physical activity. Despite reports of aging-related mobility impairment in middle-aged adults, this age group has been largely overlooked in terms of exercise programs that target functional mobility and the preservation of independence in older age. A method to quantitatively assess changes in functional mobility could direct rehabilitation in a proactive rather than reactive manner. Thirty-three healthy but sedentary middle-aged adults participated in a four week low-volume, vigorous intensity stepping exercise program. Two baseline testing sessions and one post-training testing session were conducted. Functional mobility was assessed using the timed up and go (TUG) test, with its constituent sit-to-walk and walk-to-sit phases examined using a novel inertial sensor-based method. Additionally, semi-tandem balance and knee extensor muscle isometric torque were assessed. Trunk acceleration during walk-to-sit reduced significantly post-training, suggesting altered movement control due to the exercise program. No significant training-induced changes in sit-to-walk acceleration, TUG time, balance or torque were observed. The novel method of functional mobility assessment presented provides a reliable means to quantify subtle changes in mobility during postural transitions. Over time, this exercise program may improve functional mobility.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Posture
/
Adaptation, Physiological
/
Exercise
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Physical Fitness
/
Walking
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Postural Balance
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Physical Exertion
Limits:
Aged
/
Female
/
Humans
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Male
/
Middle aged
Language:
En
Journal:
Ann Biomed Eng
Year:
2013
Document type:
Article
Affiliation country:
Irlanda