Copenhagen Plank
The copenhagen plank is an isometric hold for the abs (core), done with bodyweight only. It also works the quads. It is trained one side at a time. It is logged in seconds held rather than reps. On weyt.ai it counts toward Balance as Abs (minimum 4 sets per 30 days) and toward Routine, not your strength trend: a long hold never counts as a heavy lift.
At a glance
| Muscle group | Abs |
|---|---|
| Primary muscles | abs (core) |
| Secondary muscles | quads |
| Equipment | Bodyweight · one side at a time |
| Logged as | Seconds held per set (timed hold) |
| Strength scoring | Counts for balance and consistency, not strength |
| Balance group | Abs · minimum 4 sets per 30 days |
| Strength standards | none (standards exist for barbell and dumbbell lifts with published norms) |
How weyt.ai scores it
- Balance: every logged set counts toward the Abs group, which needs at least 4 sets per 30 days for full credit.
- Strength: counts for balance and consistency, not strength. Core, isometric and conditioning work adds nothing to your volume, your best lift estimate or your PRs, even with added weight, so a long hold never counts as a heavy lift. It still counts fully for Balance and Routine.
- Routine: any session that includes it counts toward your weekly target, the 4-week consistency window and your streak.
Scoring is plain arithmetic, not AI: the same sets always give the same result. Read the method on the about page.
Also called
copenhagen side plank, copenhagen hold, copenhagen adductor plank, copenhagen planks
Log it under any of these names and weyt.ai files it under the same exercise, so your history never splits across spellings.
Related abs exercises
Everything else that counts as abs
Suitcase Carry · Turkish Get-Up · Sit-Up · Dumbbell Sit-Up · Decline Sit-Up · Bicycle Crunch · Reverse Crunch · Side Crunch · Dumbbell Side Crunch · Cable Crunch · Machine Crunch · Lying Leg Raise · Hanging Leg Raise · Hanging Knee Raise · V-Up · Toe Touch · Flutter Kick · Scissor Kick · Mountain Climber · Dead Bug · Hollow Body Hold · Ab Wheel Rollout · Russian Twist · Standing Cable Ab Rotation · Cable Wood Chop · Pallof Press · Bird Dog · Medicine Ball Slam · Medicine Ball Rotational Throw · Bear Crawl · Front Rack Carry · Sandbag Carry · Kettlebell Windmill · Dumbbell Windmill · Landmine Rotation · Dumbbell Russian Twist · Medicine Ball Russian Twist · Dumbbell Wood Chop · Dumbbell Crunch · Dumbbell V-Up · Hanging Oblique Knee Raise · Toes to Bar · Dragon Flag · Windshield Wiper · Heel Touch · Cross-Body Crunch · Stability Ball Crunch · Leg Lowers · Bear Plank · Plank Shoulder Tap · Side Plank Hip Dip · Machine Torso Rotation · Pilates Hundred · Pilates Roll-Up · Single-Leg Stretch · Double-Leg Stretch · Pilates Teaser