If you're a competitive athlete -- or if you play a sport that calls for fast, explosive movement (e.g., tennis) -- you should be aware of the distinctions between strength/weight training and power training.

When you work out regularly with weights, your muscles increase in strength over time. Strength training has many additional benefits, including higher resting metabolism and more bone strength. In men, muscles usually also increase in size.

However, once you have enhanced your muscle strength to your satisfaction, you may want to begin enhancing your muscle power as well. While similar in some ways to regular strength training, power training is geared to enhancing the muscles' speed along with strength. In general, power training involves a more intense workout in which you perform the exercises with more force or speed up your repetitions to finish more within your usual time frame.