Bicycle Sit-Up
The Bicycle Sit-Up mainly works the core. No equipment needed: it uses just your bodyweight.
Optional Equipment

Bicycle Sit-Up Muscles Worked
Primary
Obliques; Abdominals (rectus abdominis)
Secondary
Hip Flexor (iliopsoas)
How to do the Bicycle Sit-Up
Setup
Lie flat on your back on a mat, placing your hands behind your head with elbows pointing outward.
Lift your legs so your knees are bent at a 90-degree angle, with your thighs perpendicular to the floor.
Movement
Inhale and engage your core, lifting your head and shoulders slightly off the ground.
Exhale as you extend your right leg straight out while simultaneously twisting your torso to bring your right elbow toward your left knee.
Return to the starting position in a smooth, controlled motion while inhaling.
Repeat the exercise on the opposite side, extending your left leg straight while bringing your left elbow toward your right knee.
Continue alternating sides, maintaining a steady, pedaling rhythm without pulling on your neck.
Bicycle Sit-Up FAQs
What muscles does the Bicycle Sit-Up work?
The Bicycle Sit-Up mainly works the core. The main muscles are the obliques and rectus abdominis.
What equipment do you need for the Bicycle Sit-Up?
None. The Bicycle Sit-Up is a bodyweight exercise, so you can do it anywhere.
Training calculators
Work out the numbers behind your training before your next session.
