How many reps of the front leg swing should you do as a warm-up?

Do 10 to 12 swings per leg, letting the arc grow naturally rather than forcing height on the early reps. This is a warm-up drill, not a strength movement, so one set per leg before training is enough.

How do you make the front leg swing easier or harder?

Make it easier by holding onto a wall or rack with both hands and keeping the swings small and slow. Make it harder by letting go of the support once balance allows, or by gradually increasing the arc as the hip opens up.

What is the front leg swing good for, and when should you skip it?

It dynamically opens the hip flexors and hamstrings and primes the glutes before squats, running, or any lower-body session. Skip forcing a big arc with a current hamstring strain or hip flexor pull, since a fast dynamic stretch is more provocative on an already irritated muscle than a slow static one.

Beginner

Front Leg Swing

The front leg swing is a staple pre-lift drill that dynamically opens the hip flexors and hamstrings without the cool-down effect of a long static hold. Swinging the leg forward and back through a growing range wakes up the glutes and hip flexors while the stance leg practices staying tall and stable. Use it before squats, running, or any lower-body session to prime clean hip motion.

Equipment: Body Weight
Body part: Hamstring, Quads
Type: Functional, Stretching
Browse by muscle: Biceps Femoris, Semitendinosus, Rectus Femoris

How to do it

1
Stand tall beside a wall or rack and rest one hand on it for balance.
2
Shift your weight onto the leg nearest the wall and let the outside leg hang relaxed.
3
Swing the free leg forward and backward like a pendulum, keeping the knee soft.
4
Start with a small arc and let each swing travel a little farther.
5
Keep the torso upright and the pelvis quiet so the motion comes from the hip.
6
Do your reps, then turn around and swing the other leg.

Tips

Build range gradually rather than forcing a high kick on the first rep.
Brace the abs lightly so your lower back does not arch on the backswing.
Keep the stance knee slightly bent to protect your balance.

Variations

Common mistakes

The pelvis rotates open to help the leg swing higher, turning a straight hip-hinge movement into a twisting one that stops isolating the hip.
The torso rocks forward and back to add momentum to the swing instead of letting the leg itself generate the movement from the hip.
Gripping the wall or rack tightly for balance tenses the whole upper body instead of using it as a light touch point.
Both legs get the same number of swings even when one hip is clearly stiffer or swings with a smaller arc than the other.
The knee of the swinging leg locks straight through the whole arc, which turns a loose pendulum motion into a stiff, jarring one.

Frequently asked

How many reps of the front leg swing should you do as a warm-up?: Do 10 to 12 swings per leg, letting the arc grow naturally rather than forcing height on the early reps. This is a warm-up drill, not a strength movement, so one set per leg before training is enough.
How do you make the front leg swing easier or harder?: Make it easier by holding onto a wall or rack with both hands and keeping the swings small and slow. Make it harder by letting go of the support once balance allows, or by gradually increasing the arc as the hip opens up.
What is the front leg swing good for, and when should you skip it?: It dynamically opens the hip flexors and hamstrings and primes the glutes before squats, running, or any lower-body session. Skip forcing a big arc with a current hamstring strain or hip flexor pull, since a fast dynamic stretch is more provocative on an already irritated muscle than a slow static one.

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