Strength training or resistance training involves the performance of physical exercises that are designed to improve strength and endurance. It is often associated with the lifting of weights. It can also incorporate a variety of training techniques such as calisthenics, isometrics, and plyometrics.

When properly performed, strength training can provide significant functional benefits and improvement in overall health and well-being, including increased muscle, tendon, ligament and bone strength and toughness, improved joint function, reduced potential for injury increased bone density, increased metabolism, increased fitness and improved cardiac function.