Crunches flex your spine repeatedly and load it in the one direction most of us already spend all day loading. The dead bug does the opposite: it teaches your trunk to stay still while your arms and legs move — which is what your core actually does when you carry shopping, run, or pick up a child.
Anti-extension training loads the deep abdominal wall in the position you want to protect, without repeatedly flexing the spine.
Move both at once, over about three seconds. Keep your lower back glued to the floor and your ribs from flaring up.
That is your range today. It might be an arm halfway to the floor and a leg only slightly extended. That is fine — control defines the exercise.
Alternate sides smoothly without letting your back lift in between. Eight careful reps per side.
Once you can move through full range with your back flat, add a three-second hold at the end of each rep before returning.
The most common and most important fault — it means you have lost the position you are training. Reduce your range until it stays flat.
You are extending your spine instead of bracing. Keep the ribs stacked over the hips and breathe into the sides, not the chest.
Speed hides instability and turns it into a hip flexor exercise. Slow down to three seconds per direction.
Stop if you feel pain in the lower back during the movement. A small amount of muscular fatigue is normal; pain is not. Do not let the lower back lift, and do not chase range at the cost of control. If you have an existing injury, are pregnant, or are returning to exercise after a long break, get clearance from a doctor or physiotherapist before starting.
For most people, yes. It trains stability without repeatedly flexing the spine, it is easier on the neck, and it transfers better to lifting and daily life. Crunches are not evil, they are just a narrower tool.
Core control improves within two to three weeks — you will notice it in your squat and deadlift first. Visible changes take longer and depend on overall training and diet.
Often it is exactly the right exercise, because it trains the trunk to stay stable. Keep the range small, and if pain increases during or after, stop and get individual guidance.
You should feel a deep tension, not a skin-level burn. If you feel it mostly in your hip flexors, reduce leg range and focus on keeping the back flat.
Yes, and they usually enjoy it. Keep the range small and turn it into a game — 'keep your back stuck to the floor' works well.
The best first squat variation for beginners: how to hold the bell, how deep to go, and the three fixes for every common fault.
Four movements, five rounds, twenty minutes. A full-body session that works in a living room and scales from beginner to advanced.
Eight movements covering ankles, hips, spine and shoulders — the joints that stiffen from sitting, in ten minutes flat.
