Wall sit (60–90 s isometric)
Back flat on wall, thighs parallel to floor, knees at 90°, hold position.
Muscles
- Primary
- quads
- Supporting
- glutes, knee stability
Mechanics
- Pattern
- knee flexion
- Equipment
- bodyweight
- Geometry
- Variable Range
- Target feel
- Quad burn builds steadily; no joint motion — pure time under tension.
- Progression
- Add a plate on the thighs or progress to single-leg wall sit.
- Regression
- Higher knee angle (less than 90°) to reduce quad demand.
Watch for
- Letting thighs rise above parallel over time
- Pushing off knees with hands to cheat
- Feet too close — puts excessive stress on knees
Equipment context
Bodyweight exercises need no equipment, but progression depends on leverage and position rather than added load.
Substitutions
- Leg extension isometric hold
- Spanish squat (band, knee-over-toe)
Related exercises
Progression ladder
- Beginner / regression: Higher knee angle (less than 90°) to reduce quad demand.
- Standard: Wall sit (60–90 s isometric)
- Advanced / progression: Add a plate on the thighs or progress to single-leg wall sit.
Atlas metrics
- Movement pattern
- knee flexion
- Primary target
- quads
- Supporting muscles
- glutes, knee stability
- Equipment
- bodyweight
- Joint geometry
- Variable Range
- Alternatives
- 2 substitutions
Evidence & limits
Last reviewed against peer-reviewed biomechanics references. Exercise descriptions are framed as training guidance, not medical advice.
Source: ExRx.net Exercise & Muscle Directory
Eccentryx is fitness software. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease, injury, or medical condition. Consult a licensed physician before beginning any exercise program.
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FAQ
- How do I set up Wall sit (60–90 s isometric)?
- Back flat on wall, thighs parallel to floor, knees at 90°, hold position.
- What should I feel during Wall sit (60–90 s isometric)?
- Quad burn builds steadily; no joint motion — pure time under tension.
- What are common mistakes with Wall sit (60–90 s isometric)?
- Letting thighs rise above parallel over time; Pushing off knees with hands to cheat; Feet too close — puts excessive stress on knees
- How do I progress Wall sit (60–90 s isometric)?
- Add a plate on the thighs or progress to single-leg wall sit.
- What can I do instead of Wall sit (60–90 s isometric)?
- Leg extension isometric hold, Spanish squat (band, knee-over-toe)
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- Movement family
- wall sit 60 90 s isometric
- Force type
- pull
- Graph edges
- 1360 Atlas movement links reviewed
- nearest visible Atlas substitute found in 1 movement graph hop
- movement graph path: Wall sit (60–90 s isometric) -> Leg extension (3s eccentric)
- curated substitution in the Atlas
- same target muscle: quads