The age-associated deterioration of force-generating properties of skeletal muscles can be directly associated with increased risk of physical disability, functional impairments, and increased mortality.<unk>  can contribute to increased risk of falling as well as feeling weak and/or fatigued. With regard to the relation of higher levels of muscular strength to a lower risk of premature death, studies by Newman et al. have shown that grip and knee extensor muscle strength are strongly correlated with mortality. For women, they observed crude hazard ratios of 1.84 for grip strength and 1.65 for knee extensor strength. For men, they observed crude hazard ratios of 1.36 for grip strength and 1.51 for knee extensor strength. More recent studies by Xue et al. have observed that faster decline in hip flexor and grip strengths individually predicted mortality after accounting for potential contributors. Manini et al. recently conducted an informal meta-analysis that showed significant correlation between low levels of muscle strength and poor physical performance and/or physical disability in 90% of the studies. Together, these studies provide evidence that<unk>  in older adults is strongly correlated with increased risk of physical disabilities and mortality, and decreased physical function.
Dynapenia
Neuroglycopenia
Neuromyotonia
Synkinesis
Paresis
Myotonia
Diplophonia
Cynanthropy