Weight training: It's all about technique

Weight training offers important health benefits when done properly. But it can lead to injuries, such as sprains, strains and fractures, if it's not done correctly.

For best results, consider these basic weight training principles:

• Learn proper technique. If you're new to weight training, work with a trainer or other fitness specialist to learn correct form and technique. Even experienced athletes may need to brush up on their form from time to time.
• Warm up. Cold muscles are more prone to injury than are warm muscles. Try brisk walking or another aerobic activity for five or 10 minutes before lifting weights.
• Do a single set of repetitions. Theories on the best way to approach weight training abound, including countless repetitions and hours at the gym. But research shows that a single set of exercise with a weight that fatigues your muscle after about 12 to 15 repetitions can build muscle efficiently in most people and can be as effective as three sets of the same exercise.
• Use the proper weight. The proper weight to lift is heavy enough to tire your muscles after about 12 to 15 repetitions. You should be barely able to finish the last repetition.
• Start slowly. If you're a beginner, you may find that you're able to lift only a few pounds. That's OK. Once your muscles, tendons and ligaments get used to weight training exercises, you may be surprised at how quickly you progress. Once you can easily do 12 to 15 repetitions or more with a particular weight, gradually increase the weight.
• Take time to rest. To give your muscles time to recover, rest one full day between exercising each specific muscle group. You might choose to work the major muscle groups at a single session two or three times a week, or plan daily sessions for specific muscle groups. For example, on Monday work your arms and shoulders, on Tuesday work your legs, and so on.