Core strengthening Core strengthening exercises keep your spine and body stable. The exercises use the muscles in your trunk, hips, abdomen and pelvis. Swimming, this site ballet, Pilates, yoga and tai chi are some of the effective core-strengthening approaches. Besides increasing your core strength, these exercises help improve flexibility. Strength training helps you away from the stiff, achy muscles and joints Weight-bearing exercises Bone density begins to deteriorate from 30s. It’s essential to keep your bones strong in order to prevent the risk of osteoporosis and bone breaks in the years ahead. Weight-bearing exercises such as hiking, jogging, climbing stairs, dancing, lifting weights and walking help strengthen your bones.