Most runners are enthusiastic about their sport and take steps to work out safely. But injuries like stress fractures and muscle strains, among others, are common and can sideline you, sometimes for weeks if not months.
Orthopedic surgeons should examine hip range of motion and look for asymmetry in baseball pitchers who present with shoulder pain, according to a presenter at the Advances in Throwing Symposium: Latest on Injury Treatment and Performance Optimization.
Joints emit a variety of noises, including popping, snapping, catching, clicking, grinding, grating and clunking. The technical term for these noises is "crepitus", from the Latin "to rattle".