Exercise guide
Bodyweight Squat On Slackline
- Advanced
- Compound
- Rep-based
- Lower legs
- Upper legs
An advanced stability exercise that challenges the entire lower body and core by performing a squat on an unstable, narrow surface. It significantly increases recruitment of the stabilizers in the ankles, hips, and obliques to maintain equilibrium.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Mount the slackline with your feet placed shoulder-width apart, ensuring your weight is centered over the line.
- Find a stationary focal point approximately 10-15 feet in front of you to help maintain balance.
- Extend your arms out to the sides at shoulder height to act as counterweights.
How to do it
- Inhale and slowly initiate the movement by hinging at the hips and bending the knees, lowering your center of gravity straight down.
- Descend with a controlled 3-second tempo until your thighs are parallel to the line, or as low as your balance permits.
- Exhale and drive through the mid-foot to return to a standing position, keeping your core braced to minimize line oscillation.
Form checklist
- Keep your chest upright and avoid excessive forward lean.
- Ensure your knees track directly over the line and do not cave inward.
- Maintain a neutral spine and keep your gaze fixed on your focal point.
- Use small, fluid arm movements for balance rather than sudden, jerky corrections.
Pro tips
- Focus on 'gripping' the line with the arches of your feet to engage the intrinsic muscles of the foot and improve ankle stability.
- Keep your weight distributed evenly between your heels and the balls of your feet to prevent the line from swinging laterally.
Make it harder
- Add a 3-second isometric hold at the bottom of the squat to maximize stabilizer recruitment.
- Perform the movement with your hands behind your head (Prisoner Squat) to remove the use of arms as counterweights.
Frequently asked
- What muscles does the bodyweight squat on slackline work?
- The bodyweight squat on slackline primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the serratus anterior and trapezius as secondary muscles.
- What equipment do you need for the bodyweight squat on slackline?
- The bodyweight squat on slackline requires no equipment — just your body weight.
- Is the bodyweight squat on slackline good for beginners?
- The bodyweight squat on slackline is rated advanced. Build a base with simpler variations first, then progress to it with light load and strict form.
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