Table 2. ACL injury prevention program.
Exercises Repetitions Instructions
Two-legged squats 2 x 10 reps Keep the feet, knees, and hips in a straight line. Do not let the knees fall inward. Bend the knees and hips.
One-legged squats 10 reps/side Keep the feet, knees, and hips in a straight line. Do not let the knees fall inward. Bend the knees and hips. Keep the pelvis level.
Squat jumps 10 reps Drop into a squat position and perform a maximal vertical jump. Upon landing, return to the starting position and repeat. Keep the feet, knees, and hips in a straight line. Make a soft landing.
Tuck jumps 10 reps Leap up in the air, tucking the knees into the chest. Land softly and immediately explode back up. Keep the feet, knees, and hips in a straight line.
180° jumps 10 reps/side Jump into the air and rotate 180°. Land softly, keeping the feet, knees, and hips in a straight line. Bend the knees and hips.
Contact jumps 10 reps/side Jump towards a partner to make a shoulder-to-shoulder contact. Land softly, keeping the feet, knees, and hips in a straight line. Bend the knees and hips.
Lateral hops 10 reps/side Stand on one leg and jump to the side. Land softly on the other foot, keeping the feet, knees, and hips in a straight line. Bend the knees and hips. Keep the pelvis level.
Pivoting 20 reps/side Stand on the balls of the feet with the knees bent. Turn on the balls of the feet approximately 45° to the right and left. Keep the feet and knees pointing in the same direction.
Two-legged plant and cut 10 reps/side Sprint for 4–5 steps and plant on both legs. Pivot on the feet and cut to change direction. Keep the feet, knees, and hips aligned.