Obliques

Short definition

Rotate and laterally flex the trunk, forming the waist.

Full definition

Obliques (external and internal) — planar muscles from ribs V–XII to the iliac crest, sacroiliac fascia and linea alba. Functions: lateral trunk flexion and rotation, intra-abdominal pressure (squat, deadlift, press), pelvic and thoracic stabilization. Mass ≈ 0.7–1 % at 20–25 % body fat.

Examples

Russian twists — the obliques.

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