A well-rounded exercise program is comprised of both cardiovascular aerobic exercise and resistance training. Many people still focus only on aerobic conditioning for weight loss and health, while ignoring the benefits of resistance training. Resistance training is important for both athletic performance and general fitness. A well-rounded fitness program includes strength training to improve joint function, bone density, muscle, tendon and ligament strength as well as aerobic exercise to improve heart and lung fitness, flexibility and balance.
Resistance training (also called strength training or weight training) is defined as using resistance to muscular contraction in order to increase the strength, anaerobic endurance, and size of skeletal muscles. It incorporates the use of free weights, weight machines, resistance bands, and body weight. Resistance training is based on the concept that the muscles of the body will work to overcome a resistance force when required.
There are many physical and mental benefits to resistance training. It improves tone and strength of muscles, which protects joints from injury. It also may help prevent cognitive decline and improve mood by increasing self-esteem, helping to prevent depression, improving body image, and decreasing insomnia. Resistance training improves mobility and balance, increases flexibility & stamina, improves posture, and decreases the risk for injury. Additionally it prevents osteoporosis, sarcopenia, lower-back pain, and other disabilities. More recent research demonstrates that resistance training may positively affect risk factors for diabetes, heart disease, and cancer. These include insulin resistance, resting metabolic rate, glucose metabolism, blood pressure, body fat, and gastrointestinal transit time. Lastly, building and maintaining muscle is good for your metabolism and helps with weight loss and weight maintenance.
In order to become stronger and build muscle, resistance training must be done on a consistent basis. Most guidelines for physical activity recommend that adults do muscle strengthening activities at least two days each week. It is not necessarily required that the resistance is heavy; it just has to be controlled and precise for all the major muscle groups.
Proper form is essential in resistance training to avoid injury. Before starting any type of training, it is recommended to work with a qualified personal trainer who will assess your strengths and weaknesses, as well as help you create an exercise program to reach your goals, both safely and effectively.