Bicycle Crunch Hold
Isometric bicycle crunch hold that braces the obliques while one leg extends and the opposite elbow meets the knee.
Overview
Bicycle Crunch Hold is an isometric core hold on Flexor. From a curled-up position, extend one leg and rotate to bring the opposite elbow toward the bent knee, then hold the twist while breathing steadily.
What Bicycle Crunch Hold targets
You'll feel the rectus abdominis and external obliques working to maintain the twist, with the lower back pressed toward the floor throughout.
Why add Bicycle Crunch Hold to your routine
Isometric holds build core endurance in a rotational pattern useful for running, twisting sports, and stable lifting.
- Static hold — no rep bouncing needed.
- Switch sides halfway for balanced oblique work.
- Floor-based with no equipment.
Who it's for
Intermediate movers comfortable with curl-up positions who want rotational core endurance.
When to do it
Use in core sessions or warm-ups. Hold 15–30 seconds per side.
From a curled-up position, extend one leg long and rotate to bring the opposite elbow toward the bent knee, then hold the twist with steady breathing. Switch sides halfway through the set.
Setup cue
Lie on your back with hands behind your head. Lift your shoulder blades, rotate your elbow across to the opposite knee, extend the other leg straight out, and hold the contraction while keeping your lower back pressed to the floor.
Practice notes
In Flexor, Bicycle Crunch Hold is typically prescribed as about 1 min per round, 1 rep, and 1 set. Adjust the dosage to what feels sustainable, breathe steadily, and ease off if anything feels sharp or unsafe.
Guidance
How to perform, tips, mistakes, safety notes, and benefits for Bicycle Crunch Hold.
Follow these cues in order. Move with control and stay in a comfortable range.
- Lie on your back with knees bent and feet on the floor, then lace your fingers lightly behind your head.
- Lift head, shoulders, and upper back off the mat while pressing your lower spine down—keep it smooth.
- Extend one leg long and pull the opposite knee toward your chest as you rotate to bring the opposite elbow toward that knee.
- Hold the twist with steady breathing, then switch sides halfway through the set—keep it smooth.
Cues that help the movement stay smoother and more controlled.
- Move with control and keep breathing steadily.
- Maintain stable posture; avoid compensating with other joints.
- Keep the core braced so the lower back stays glued to the mat.
Patterns to watch for so the shape stays clearer.
- Pulling on the neck with the hands instead of rotating from the trunk.
- Letting the lower back arch off the floor during the hold.
- Rushing the leg switch instead of holding each side steadily.
Keep things comfortable and stop if something feels wrong.
- Stop if you feel sharp pain, numbness, tingling, dizziness, or symptoms that radiate.
- Stay within a comfortable, controlled range; muscular effort or mild stretch tension should not become pain.
- Move smoothly without bouncing, jerking, or forcing the range.
Why people include this movement in their practice.
- Builds isometric endurance in the obliques and rectus abdominis.
- Trains trunk rotation control with the lower back pressed toward the floor.
Similar movements to explore next
-
Elbow Plank Leg Lift
Hold an elbow plank and lift one leg to hip height without letting the pelvis twist.
-
Single Arm Plank
High plank with one arm lifted to train anti-rotation core strength and shoulder stability.
-
Spiderman Push Up Hold
Hold a half push-up while driving one knee toward the same-side elbow to challenge core anti-rotation and hip flexor control.
-
Wide Leg Torso Circles
Circle the torso from a wide stance with hands on the hips to loosen the hips, hamstrings, and lower back.
-
Crunches
Curl the shoulder blades off the floor to train controlled abdominal flexion.
-
Elbow Side Plank Leg Lift
Hold an elbow side plank and lift the top leg toward the ceiling without losing hip alignment.
-
Hand Side Plank Leg Lift
Hold a straight-arm side plank and lift the top leg while keeping the hips stacked and lifted.
-
Hollow Body
Use Hollow Body for dynamic hollow-body rocks that challenge core tension while the body moves as one piece.
Common questions
Which body areas does Bicycle Crunch Hold target?
Bicycle Crunch Hold is a movement that mainly targets your core, abdomen, and obliques. Move within a comfortable range and skip it if it does not feel suitable for you.
Which muscles does Bicycle Crunch Hold work?
Primary muscles associated with Bicycle Crunch Hold include rectus abdominis and external obliques. Flexor presents this as general wellness guidance, not a clinical assessment.
Is Bicycle Crunch Hold suitable for beginners?
Bicycle Crunch Hold is listed as intermediate in Flexor. Choose a smaller range of motion, fewer repetitions, or an easier variation whenever you want more control.
How long should you hold Bicycle Crunch Hold?
In Flexor, Bicycle Crunch Hold runs for about 1 min per round. Adjust the time to what feels sustainable, breathe steadily, and ease off sooner if anything feels sharp.
How do you do Bicycle Crunch Hold?
Bicycle Crunch Hold has 4 guided steps. Follow them in order on this page, breathe steadily, and keep the movement smooth and within a comfortable range. Stop if anything feels sharp, unstable, or unsafe for you.
Do you need any equipment for Bicycle Crunch Hold?
No. Bicycle Crunch Hold is a no-equipment movement you can do at home with just enough space to move comfortably.
Which Flexor routines include Bicycle Crunch Hold?
Bicycle Crunch Hold appears in guided Flexor sessions such as Warm-Up: Full-Body Shakeout, Warm-Up: Cycling Mobility, and Pre-Workout Mobility: Core. Open a routine page to follow the full sequence, or practise this movement on its own from this guide.
Is this medical advice?
No. Flexor provides general fitness and wellness guidance. It does not diagnose, treat, or prevent medical conditions. Speak with a qualified professional about injuries, persistent pain, or health concerns.
