What you'll gain

• Builds glute and quad strength through a side-to-side hip pattern.

• Opens up the inner thighs and improves lateral hip mobility.

• Trains balance and single-leg control without weights.

Step-by-Step Instructions

1. 1

   Stand tall with feet together, hands at your chest, and your core braced for balance.

2. 2

   Take a wide step out to one side and plant the foot flat with toes pointing forward.

3. 3

   Sit your hips back and bend the stepping leg, keeping the trailing leg straight and the chest tall.

4. 4

   Lower until the working thigh is roughly parallel to the floor and you feel a stretch in the inner thigh.

5. 5

   Push through the heel of the working leg to drive back up to standing in one strong motion.

6. 6

   Repeat on the opposite side and continue alternating for the prescribed reps.

Common Mistakes

• Letting the knee of the working leg cave inward instead of tracking over the foot.

• Leaning the chest too far forward, which loads the lower back instead of the glutes and quads.

• Rounding the back when sitting into the lunge instead of hinging cleanly at the hips.

• Cutting the depth short and turning a real lateral lunge into a shallow side step.

About This Exercise

The alternating lateral lunge is a frontal-plane leg exercise that most lower-body programs skip. By stepping out wide to one side and sitting back into that leg, it trains the glutes and quads through a hip pattern that forward squats and lunges never touch. It also opens up the inner thighs and improves lateral hip mobility. For app builders, this is a smart inclusion in mobility-rich leg days, warm-up flows, and athletic-prep blocks. It is especially useful for sports apps targeting lateral movement — basketball, tennis, soccer — where side-to-side strength matters. Drop it into beginner onboarding tracks too, since it teaches the hip hinge in a less intimidating pattern than the back squat.

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