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Deep Breathing Drill

Primary target: Serratus Posterior (后锯肌)

Exercise Details

Equipment

Bodyweight (supine is best)

Sets & Reps

3-5 rounds × 5-8 deep breaths

How to do it

Lying with knees bent, one hand on the chest, one on the belly; inhale through the nose so the belly and lower ribs (posterior serratus/intercostals) expand in all directions; exhale over 6-8 seconds; feel the side ribs widen.

Common mistakes

Shallow chest-only breathing, shrugging as you inhale, exhaling too fast

Muscles Worked

Other Exercises for the Same Muscle

Yoga Stretching · Intercostal Breathing