Background Quadriceps muscle weakness is a well-defined characteristic of chronic obstructive pulmonary disease (COPD). Vitamin D deficiency has been shown to be highly prevalent in COPD but its ...

The muscle strength is one of the main physical components and is associated with the quality of movement execution in the everyday activities and sports performance. To quantify and classify the ...

Conventional methods of assessing cardiorespiratory fitness and muscular strength among people with multiple sclerosis may underestimate participants' capabilities, prompting clinicians to prescribe ...