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Muscle mass and physical function in ageing : the effects of physical activity and healthy diet
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- Edholm, Peter, 1977- (author)
- Örebro universitet,Institutionen för hälsovetenskaper
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- Kadi, Fawzi, professor, 1970- (thesis advisor)
- Örebro universitet,Institutionen för hälsovetenskaper
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- Nilsson, Andreas, Phd, 1973- (thesis advisor)
- Örebro universitet,Institutionen för hälsovetenskaper
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- (creator_code:org_t)
- ISBN 9789175293264
- Örebro : Örebro University, 2020
- English 103 s.
- Series: Örebro Studies in Sport Sciences, 1654-7535 ; 32
- Doctoral thesis (other academic/artistic)
Abstract
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- Ageing is associated with a gradual deterioration in physical function, accompanied by a decrease in muscle mass, leading to loss of independency. In this respect, physical activity and healthy diet represent key lifestyle factors with potential to delay onset of age-related physical disability. The overall aim of the present thesis was to explore the effects of physical activity behaviours in general and resistance training (RT) in particular, with or without addition of a healthy diet (HD), on muscle mass and physical function in older community-dwelling women. A main finding was that physical activity of at least moderate intensity at old age infers beneficial effects on physical function, even in individuals with a previously sedentary lifestyle. Additionally, engagement in exercise-related activities during middleage years is linked to better physical function and higher muscle massat old age, regardless of present physical activity level. This thesis further highlights that in older women RT combined with HD rich in omega-3 polyunsaturated fatty acids elicits significant gains in muscle mass, whereas no corresponding gain was induced by RT alone. Likewise, larger improvements in muscle strength and physical function were evident in response to combined effects by RT and HD compared to RT alone. Taken together, findings from this thesis support public health efforts aiming to promote physical activity of at least moderate intensity together with a healthy diet rich in omega-3 polyunsaturated fatty acids in order to combat age-related decline in muscle mass and physical function.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Keyword
- Healthy ageing
- Sarcopenia
- Dynapenia
- Functional capacity
- Resistance training
- Omega-3 fatty acids
- Muscle mass
- Body fat
Publication and Content Type
- vet (subject category)
- dok (subject category)
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