Muscle-strengthening activities make muscles do more work than they are accustomed to during activities of daily life. Muscle strengthening includes strength training, resistance training, and muscular endurance exercises.
Research has shown that strength training increases power and endurance and also:
- Helps control weight by boosting the metabolism
- Halts bone loss and even restores bone
- Helps prevent bone fractures from osteoporosis
- Improves balance and flexibility
In addition, in women age 40 or older, strength training helps prevent loss of muscle mass.