Exercise Comparison
90/90 Hamstring vs Box Skip




Side-by-Side
Muscle Analysis
Shared
Only in Box Skip
Instructions
90/90 Hamstring
Lie on your back, with one leg extended straight out.
With the other leg, bend the hip and knee to 90 degrees. You may brace your leg with your hands if necessary. This will be your starting position.
Extend your leg straight into the air, pausing briefly at the top. Return the leg to the starting position.
Repeat for 10-20 repetitions, and then switch to the other leg.
Box Skip
You will need several boxes lined up about 8 feet apart.
Begin facing the first box with one leg slightly behind the other.
Drive off the back leg, attempting to gain as much height with the hips as possible.
Immediately upon landing on the box, drive the other leg forward and upward to gain height and distance, leaping from the box. Land between the first two boxes with the same leg that landed on the first box.
Then, step to the next box and repeat.
Verdict
Both exercises target the hamstrings. 90/90 Hamstring is a beginner exercise using bodyweight, while Box Skip is beginner and uses other. Choose 90/90 Hamstring if you have access to bodyweight, or Box Skip if you prefer other.