LongformDead Bug · Teaching default
Alternate opposite arm and leg, recording repetitions per side.
Exercise mat
- Keep the trunk stable while limbs move.
Core Movement
Core Movement
Practice trunk stability while limbs move. Core training is not local fat loss.
Purpose and Equipment
Trunk anti-extension control
Equipment: Exercise mat
Primary muscles: Abdominal muscles; other involved muscles: Hip stabilizers
Observation Checkpoints
- Brace the trunk while supine and breathe naturally.
- Slowly reach opposite arm and leg while keeping the lower back stable.
- Reach only as far as control allows, then return and switch sides.
Common Errors
- Uncontrolled lower-back arching.
- Holding the breath or pursuing a long reach.
- Moving arms and legs too quickly.
Variants
Short-range Dead Bug
Shorten the reach, prioritizing trunk stability and breathing.
Exercise mat
- Move only within the range you can control.
Safety Boundaries
- Shorten the reach or move one limb first. Stop for lower-back pain.
- Default counts are repetitions per side, not plank duration in seconds.
Movement-learning information for healthy adults without known exercise contraindications. Sources are reviewed; this does not replace on-site technique assessment.
- Muscle labels are teaching summaries, not precise activation rates.
- Pain, injury, pregnancy or postpartum circumstances, and other special conditions require professional adaptation. This information cannot diagnose injury.
Sources and Review
Review date: 2026-10-14. Sources support the stated claims without endorsing an individual's plan.
- Strength training: Get stronger, leaner, healthier · Mayo Clinic
Stop for pain, learn correct technique, and remember to breathe.；Discuss chronic conditions or training-safety concerns with medical professionals.；Allow recovery days for particular muscle groups. This is not a personal prescription.
- Strength training: How-to video collection · Mayo Clinic
Breathe freely during training rather than holding the breath to force repetitions. Technique education does not replace individual assessment.
- Injury prevention advice for runners · Dead bug · Newcastle Hospitals NHS Foundation Trust
Only the dead-bug movement is used: supine, slowly reaching and returning opposite arm and leg with stable trunk control.；The source concerns runners. Its doses, running-volume rules, and injury-prevention effects are not imported as product conclusions.