Abdominals
Sit-Up


A classic trunk exercise that curls your torso from lying to sitting to work the abdominals.
Primary musclesAbdominals
Energy burned
≈ 17 kcalFor 3 × 8–12, rest 90s · ≈ 2.9 kcal/min
Estimate range 12–21 kcal (±25 %)
Muscle mass worked4 %
Effort during a set4.5 MET
Your lean mass53.5 kgBody fat estimated from BMI and age
Body-weight exercise: your whole body is the load, so heavier people burn more.
Estimate ±25 %: muscles worked (from the exercise data), sets, reps, rest and your body. See the planner for whole sessions.
Setup
- 1Lie on your back with your knees bent and feet flat on the floor, anchored if needed.
- 2Cross your arms over your chest or rest your fingertips lightly beside your head.
How to perform
- 1Brace your abs and curl your torso up toward your knees.
- 2Rise until your chest is close to your thighs without yanking on the neck.
- 3Pause briefly at the top.
- 4Lower slowly back down, one vertebra at a time.























