Journal
CURRENT OSTEOPOROSIS REPORTS
Volume 13, Issue 5, Pages 351-357Publisher
SPRINGER
DOI: 10.1007/s11914-015-0279-7
Keywords
Sarcopenia; Sarcopenic obesity; Depression; Anxiety; Inflammation
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Funding
- NHMRC Career Development Fellowship [1064272]
- postgraduate scholarship from the Australian Rotary Health Fund
- Postdoctoral Training Fellowship from the NHMRC
- Alfred Deakin Postdoctoral Research Fellowship
- NHMRC Senior Principal Research Fellowship
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While it is understood that body composition impacts on physical conditions, such as diabetes and cardiovascular disease, it is only now apparent that body composition might play a role in the genesis of common mental disorders, depression and anxiety. Sarcopenia occurs in ageing and comprises a progressive decline in muscle mass, strength and function, leading to frailty, decreased independence and poorer quality of life. This review presents an emerging body of evidence to support the hypothesis that shared pathophysiological pathways for sarcopenia and the common mental disorders constitute links between skeletal muscle and brain function. Contracting skeletal muscle secretes neurotrophic factors that are known to play a role in mood and anxiety, and have the dual role of nourishing neuronal growth and differentiation, while protecting the size and number of motor units in skeletal muscle. Furthermore, skeletal muscle activity has important immune and redox effects that impact behaviour and reduce muscle catabolism.
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