This exercise is targeted for eccentric strengthening of the hamstring muscles and tendons. Start with your hands on each side of your hips. Engage your inner core by making yourself skinnier below the belly button and pulling in your waistline. Standing on one leg, bend your body forward by pivoting at the hips and allowing the non weighted leg to pendulum upwards with the movement. Return back to the start and repeat 3 sets of 15 repetitions. This exercise is excellent for increasing the functional strength of your hamstring muscles in conjunction with your core stability. It is particularly useful after recovering from hamstring muscle and tendon strains and overuse tendinopathies.