A grave change associated with human ageing is progressive decline in skeletal muscle mass, a downward spiral that may lead to decreased strength and functionality. The term 'sarcopenia' (Greek 'sarx' or flesh + 'penia' or loss) has been proposed to describe this age-related decrease of muscle mass. Sarcopenia represents an impaired state of health with increased risk of falls and fractures, impaired ability to perform activities of daily living, and loss of independence. The imaging technologies used to detect loss of skeletal muscle mass in sarcopenia include: dual X-ray absorptiometry (DXA), magnetic resonance imaging (MR), computed tomography, peripheral quantitative computed tomography, and ultrasound.~The main scope of the present pilot study is to evaluate the possible association between the status of sarcopenia and the risk of fall in osteoporotic postmenopausal women. Forty osteoporotic postmenopausal women, previously (pre-recruitment) classified by DXA in 20 sarcopenic and 20 non-sarcopenic subjects, will be recruited. Data will be collected on: 1) bone (vitamin D) and muscle (myokines) metabolisms through blood sampling; 2) Risk of fall by the OAK device produced by Khymeia; 3) thigh muscle quality through MR.~A secondary outcome is to evaluate the differences in bone and muscle metabolism, risk of fall, and muscle quality between sarcopenic and non-sarcopenic subjects.
The main scope of the present pilot study is to evaluate the possible association between the status of sarcopenia and the risk of fall in osteoporotic postmenopausal women. Forty osteoporotic postmenopausal women, previously (pre-recruitment) classified by DXA in 20 sarcopenic and 20 non-sarcopenic subjects, will be recruited. The investigators will collect data on: 1) bone (vitamin D) and muscle (myokines) metabolisms through blood sampling; 2) Risk of fall by the OAK device produced by Khymeia; 3) thigh muscle quality through MR.