Hack Squat Machine vs One Leg Knee Up
Which one fits your Leg workout plan?
Contents
Hack Squat Machine works multiple joints at once, One Leg Knee Up isolates — difficulty 2 of 5 vs 2. See which fits your Leg day.
Compare the benefits of Hack Squat Machine and One Leg Knee Up and pick the one that fits your Leg workout.
Hack Squat Machine vs One Leg Knee Up: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Hack Squat Machine more often — 5,707 sessions compared to 1,113 for One Leg Knee Up.
What most people do isn't always what fits you. Hack Squat Machine and One Leg Knee Up differ in the muscles they work, the equipment they need, and how hard they are to learn — the comparison below covers each.
How Hack Squat Machine and One Leg Knee Up Differ
| What differs | Hack Squat Machine | One Leg Knee Up |
|---|---|---|
| Muscles worked | quads, hamstrings, and glutes | quads, abs, and hamstrings |
| Equipment | a machine | bodyweight only |
| One side at a time | No | Yes |
| Difficulty | 2 of 5 | 2 of 5 |
| Sessions logged by Planfit users | 5,707 sessions | 1,113 sessions |
How to Do Hack Squat Machine
Hack Squat Machine Muscles Worked: Leg
Form
- 1. Tighten your abdomen and keep your waist straight, then bend at the hip joint to lower your hips down.
- 2. Lower yourself until your knees naturally bend and your thighs are vertical to your body.
- 3. Push strongly through the center of your feet to rise up.
- 4. As your hips rise, straighten your knees and hip joints in sequence, and return to the starting position.
Coach's Tips
- 1. Please be careful not to lean your upper body excessively forward.
- 2. Keep your chest up and engage your core to avoid bending your waist.
- 3. Don't excessively bend your waist while trying to keep it straight.
- 4. Please do not push your hips too far back.
- 5. Make sure your feet do not come off the ground.
- 6. When standing up, please ensure your knees do not come together.
For a full Hack Squat Machine guide with alternatives and benefits, see the Hack Squat Machine exercise guide.
How to Do One Leg Knee Up
One Leg Knee Up Muscles Worked: Leg
Form
- 1. Lift one knee forward and touch it with both hands.
- 2. Please do the same on the other side.
Coach's Tips
- Please be careful not to let your legs spread apart.
For a full One Leg Knee Up guide with alternatives and benefits, see the One Leg Knee Up exercise guide.
Frequently Asked Questions
Which is better for Leg, Hack Squat Machine or One Leg Knee Up?
Planfit users log Hack Squat Machine more often — 5,707 sessions against 1,113 for One Leg Knee Up. Both train Leg, so pick the one that matches the equipment you have and the muscles you want to load.
Do Hack Squat Machine and One Leg Knee Up work the same muscles?
Not quite. Hack Squat Machine loads quads, hamstrings, and glutes, and One Leg Knee Up loads quads, abs, and hamstrings.
What equipment do Hack Squat Machine and One Leg Knee Up need?
Hack Squat Machine needs a machine, and One Leg Knee Up needs bodyweight only.
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