"decline in physical function" is a correct and usable phrase in written English.
You can use it when referring to the loss of physical ability or capability due to age, illness, or injury. For example: Recent studies have shown a significant decline in physical function among the elderly population over the past decade.
Frailty is a condition characterized by a decline in physical function and functional capacity.
Finally, frailty, a condition characterized by a decline in physical function and functional capacity predisposing to disability, is highly prevalent among patients with CKD [ 86].
They measured the time used for walking 6 meters and for completing five chair stands to define decline in physical function, and found that decline in physics explained an estimate of 9% of clinically frequent incontinence [ 18].
Subjects receiving GHRH also showed no change in scores on an integrated physical functional performance test mimicking activities of daily living, but there was a significant decline in physical function in the placebo group (Merriam et al 1997, 2003; Cummings and Merriam 2003).
"People more likely to develop dementia show early signs of physical function decline, and people, especially in old age, will develop decline in physical function as a result of dementia that may be too mild to be detected".
To quantify the variance attributable to age and estimate annual decline in physical function and self-reported health using a battery of outcome measures in healthy older females.
Objective: To determine the effects of center-based exercise on physical performance in older persons at risk for decline in physical functioning.
To investigate whether depressive symptoms and antidepressant use at baseline predict the subsequent decline in physical functioning and number of hospitalizations in nursing home residents.
Sleep deprivation is also associated with a decline in physical functioning (PF) that mediates the ability to perform activities of daily living.
To assess the association of decline in physical functioning with number of chronic diseases and with specific comorbidity in different index diseases.
Makizako H, Shimada H, Doi T, Yoshida D, Ito K, Kato T, Shimokata H, Washimi Y, Endo H, Suzuki T. The association between decline in physical functioning and atrophy of medial temporal areas in community-dwelling older adults with amnestic and nonamnestic mild cognitive impairment.
