How to Do Oblique Crunches - On The Floor
Start and end of one clean rep of Oblique Crunches - On The Floor.
Quick facts
| Primary muscle | Core |
|---|---|
| Secondary muscles | — |
| Equipment | Bodyweight |
| Category | Strength |
How to perform Oblique Crunches - On The Floor
- Start out by lying on your right side with your legs lying on top of each other. Make sure your knees are bent a little bit.
- Place your left hand behind your head.
- Once you are in this set position, begin by moving your left elbow up as you would perform a normal crunch except this time the main emphasis is on your obliques.
- Crunch as high as you can, hold the contraction for a second and then slowly drop back down into the starting position.
- Remember to breathe in during the eccentric (lowering) part of the exercise and to breathe out during the concentric (elevation) part of the exercise.
Muscles worked
- Core (primary): braces the trunk and resists twisting to protect the spine.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
Form tips
- Brace as if about to take a light punch and breathe shallowly — don't hold your breath for the whole set.
- Own the largest range you can control with clean form before you chase extra reps.
- Treat every rep the same — a repeatable setup and bar path is what lets you add weight safely over time.
- Stop a rep or two short of failure on most sets to keep form clean and recover faster.
Common mistakes
- Cranking with the hip flexors or neck instead of moving from the trunk.
- Cutting the range short to squeeze out extra reps instead of owning each full one.
- Chasing weight jumps before the current load feels solid on every rep.
Frequently asked questions
What muscles does Oblique Crunches - On The Floor work?
Oblique Crunches - On The Floor is a focused movement that primarily works the core.
What equipment do I need for Oblique Crunches - On The Floor?
None — Oblique Crunches - On The Floor is a bodyweight movement, so you only need your bodyweight and a little space.
How many sets and reps should I do for Oblique Crunches - On The Floor?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
Train Oblique Crunches - On The Floor with a coach in your pocket
Gimmy is your AI gym buddy — it programs Oblique Crunches - On The Floor into recovery-aware workouts, tracks your sets, and shows one score that tells you if it's working.
Get early access