Knee Touch Crunches
The knee-touch crunch gives the classic crunch a measurable finish line: fingertips slide up to touch the knees at the top of every rep. That physical checkpoint keeps range honest, making it a smart first crunch variation for people learning what a full rep should feel like. Coached by Maddy (NASM-CPT) — these are the exact form cues he gives on every client's first week.
Muscles worked
Sets & reps by goal
| Goal | Sets × Reps | Rest |
|---|---|---|
| Strength | 4 × 6 (3-second pause at the touch) | 90 s |
| Muscle | 3–4 × 9–12 | 60–90 s |
| Endurance | 3 × 18–27 | 45–60 s |
Level — Beginner
Beginner — the knee touch is a built-in range referee; let it call every rep.
Proper form — 5 cues
- Lie back with knees bent, feet flat, arms extended along the thighs.
- Curl the shoulder blades off the mat, sliding the hands up the thighs toward the knees.
- Touch the knees — or the kneecaps' base — with both hands on every rep.
- Pause one beat at the touch, abs fully shortened, before lowering.
- Lower the shoulders down with the same control they came up with.
Breathing: Exhale as the hands slide to the knees, inhale on the controlled lowering.
The 3 mistakes Maddy corrects most
Common questions
Are knee-touch crunches better than regular crunches?
Mechanically they are the same exercise; the knee touch simply adds an objective range marker. That matters more than it sounds — most self-taught crunches shrink over a set without the person noticing. If your reps already reach full range consistently, the touch adds a pacing rhythm, nothing more.
Why do I feel this in my neck?
Usually because the head is leading the movement instead of riding on it. Keep the gaze on the knees, imagine holding a small orange under the chin, and shrink the range until the abs — not the neck — do the lifting. Building up gradually beats pushing through neck strain.
How many crunches a day should I do for visible abs?
Visible abs are decided mostly by body-fat level, which training volume alone does not control — nutrition does the heavy lifting there. Train the abs like any muscle: two to four quality sets, two or three times a week, progressed over time, rather than daily high-rep marathons.
Related exercises
Harder: Crunches
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