Movement guide
Quadratus lumborum
Connects the pelvis, lumbar spine, and lowest rib; resists side bending.
01
Suitcase carry
Lateral trunk stability · Dumbbell
Also works
Obliques, spinal extensors; forearm and shoulder muscles carry the load
How to perform
Carry one moderate dumbbell at your side and walk steadily without leaning. Switch hands.
Keep the pelvis level and breathe throughout.
Example volume · 2–3 carries × 15–30 metres / side
02
Side plank
Isometric · Bodyweight
Also works
Obliques, gluteus medius; shoulder stabilizers
How to perform
Support yourself on one forearm and the side of your foot. Lift your hips to form a straight line. Use bent knees to reduce difficulty.
Stack the shoulder above the elbow and breathe steadily.
Example volume · 3 sets × 20–40 sec / side
References
openstax.orgCommunity draft · awaiting expert review