Side Crunch Version 2

Body Part: Waist

Muscle: Obliques

Equipment: Body Weight

Side Crunch Version 2 is a floor-based oblique crunch performed on your side with body weight only. You lie long on one side, stack the legs, and curl the rib cage toward the hip on the same side while keeping the pelvis mostly still. The goal is not to swing the torso or roll backward; it is to create a clean side bend through the trunk so the obliques do the work.

The main training focus is the obliques, especially the external obliques on the working side, with the rectus abdominis, transverse abdominis, and deeper trunk stabilizers helping control the spine and pelvis. Because the exercise is done on the floor, it is a useful way to train lateral trunk flexion without load from a machine or dumbbell. That makes the movement easy to scale by changing tempo, range, and rep count.

The setup matters because the start position determines whether the set is honest or sloppy. Keep the body in one long line, let the shoulders stay stacked, and place the hands lightly behind the head without pulling on the neck. From there, shorten the space between the rib cage and the hip on the working side. If the pelvis starts to rotate or the lower back arches, the range is too large or the pace is too fast.

Each repetition should feel like a controlled curl rather than a throw. Exhale as you lift, pause briefly at the top, and lower under tension until the torso is back on the floor with the same stacked alignment. This version works well in core-focused sessions, warm-ups, and accessory blocks where you want a low-load movement that still teaches trunk control, breathing, and side-to-side balance.

Use a small to moderate range if you are new to side crunches, and increase the challenge by slowing the lowering phase or adding a pause rather than by jerking higher. The exercise is most useful when the neck stays quiet, the elbows stay open, and the working side of the waist does the lifting instead of momentum or hip flexors.

Instructions

• Lie on one side on a mat with both legs straight and stacked, then bend your elbows and place your hands lightly behind your head.
• Keep your shoulders, hips, and ankles lined up so your torso starts in one long side-lying position.
• Tuck your chin slightly and keep your elbows open so your hands do not pull your head forward.
• Brace the waist on the side facing up before you start the rep.
• Exhale and curl your upper rib cage toward the hip on the same side without rolling onto your back.
• Lift only as far as you can keep the pelvis stacked and the neck relaxed.
• Pause briefly at the top, then lower slowly until your shoulder blades and ribs return to the floor.
• Reset your stack on each rep and repeat for the planned number of repetitions on that side before switching.

Tips & Tricks

• Think about shortening the space between your ribs and hip, not pulling your elbow toward your knee.
• Keep the bottom shoulder relaxed against the floor so the neck and upper traps do not take over.
• If your hips start to roll backward, shorten the range instead of chasing a bigger crunch.
• A long exhale on the way up helps the obliques close the side of the waist more cleanly.
• Keep the hands light behind the head; if you feel a tug in the neck, the hands are too active.
• Lower under control for two to three seconds so the side body stays loaded through the full rep.
• Use a very small range at first if the movement feels cramped on the floor.
• Match the number of reps on both sides and stop when the torso starts twisting instead of bending.

Frequently Asked Questions

What muscles does Side Crunch Version 2 work?

It mainly trains the obliques on the working side, with the rectus abdominis and transverse abdominis helping control the curl.

Can beginners perform this exercise?

Yes. Beginners should keep the range small, move slowly, and avoid pulling on the head.

Should I feel this in my neck?

No. A little upper-abdominal effort is normal, but neck tension usually means the hands are tugging or the chin is drifting forward.

Do I stay on my side the whole time?

Yes. The torso should curl sideways without rolling flat onto the back or twisting open through the ribs.

How many reps should I do?

Use controlled sets of about 10 to 20 reps per side, depending on how slow and strict each repetition is.

Why are the legs kept straight in the image?

Straight legs make it easier to keep the body stacked and to isolate the side bend instead of using hip flexor drive.

What is the most common mistake?

The biggest mistake is twisting backward and turning the movement into a sloppy sit-up instead of a true side crunch.

How do I make it harder without adding weight?

Slow the lowering phase, add a pause at the top, or increase the total time under tension while keeping the same clean shape.