Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone, Apple Watch and Android. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App StoreGet it on Google Play

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.

  1. Home
  2. /
  3. Exercises
  4. /
  5. Legs
  6. /
  7. Alternate Sprinter Lunge

Exercise guide

Alternate Sprinter Lunge

  • Intermediate
  • Compound
  • Rep-based
  • Lower legs
  • Upper legs

This dynamic lunge variation mimics a sprinter's starting block position to develop explosive power and deep hip flexion, targeting the glutes and quads through an increased range of motion.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Alternate Sprinter Lunge demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Calves
  • Glutes
  • Hamstrings
  • Quadriceps

Secondary

  • Abs
  • Obliques

Equipment

  • Body weight

Setup

  1. Stand tall with your feet hip-width apart and your core engaged.
  2. Position your arms at your sides, ready to move in a rhythmic running motion.
  3. Ensure you have adequate clear space behind you for a full backward stride.

How to do it

  1. Step one leg back into a deep reverse lunge while simultaneously hinging forward at the hips to bring your torso toward your front thigh.
  2. Touch the fingertips of the hand opposite your front leg to the floor, mimicking a sprinter's start position.
  3. Exhale and drive powerfully through your front heel to return to the initial standing position.
  4. Immediately repeat the movement on the opposite side, alternating legs with a controlled, athletic tempo.

Form checklist

  • Keep your front knee tracked over your mid-foot, preventing it from caving inward.
  • Maintain a neutral spine and flat back even when leaning forward to touch the floor.
  • Ensure the back knee hovers just above the ground without touching it.
  • Keep your weight primarily in the front heel to maximize glute and hamstring recruitment.

Pro tips

  • Focus on 'loading' the front glute like a spring during the descent to maximize explosive power on the way up.
  • Coordinate your arm swing with your leg movement to improve balance and reinforce natural running mechanics.

Make it harder

  • Add a vertical knee drive or a small plyometric hop at the top of the movement to increase power output.
  • Increase the depth of the hinge and the speed of the transition between sides while maintaining perfect stability.

Frequently asked

What muscles does the alternate sprinter lunge work?
The alternate sprinter lunge primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the abs and obliques as secondary muscles.
What equipment do you need for the alternate sprinter lunge?
The alternate sprinter lunge requires no equipment — just your body weight.
Is the alternate sprinter lunge good for beginners?
The alternate sprinter lunge is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
  • Alternate Knee Cross Over Sit Against WallIntermediate · calves, glutes, hamstrings, and quadriceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

Download on the App StoreGet it on Google Play

See how a Crucible works