Overuse injuries occur from stressing your joints, muscles,
or other tissues without allowing them to recover. For example, throwing a
baseball at high speeds over and over can stress your shoulder joint and cause
an injury to part of that joint (the
Stress fractures, in which a bone breaks from the
pressure placed on it through activity, are also common for athletes. Anyone
who does too much activity without proper conditioning or proper equipment is
at risk for injury.