Latissimus dorsi (back and side)
The broad back muscle. Involved in drawing a raised arm down to the side of the body.

Where is it?
A broad muscle spreading from the lower half of the back round to the side of the trunk. It starts from the spine and pelvis, passes under the armpit and attaches to the front inner side of the upper arm bone (humerus).
Muscles included: latissimus dorsi
Main actions
- Draw a raised arm down and back
- Rotate the arm inwards
- Pull the body towards the arms
Stretches that lengthen the latissimus dorsi (8)

Seated Side Bend
Side of the trunk and rib cage

Standing Side Bend
Side of the trunk and waist

Half-Kneeling Side Bend
Side of the trunk and front of the hip

Wall Side Reach
Latissimus dorsi and side of the trunk

Alternating Side Reach
Side of the trunk (latissimus dorsi and obliques)

Seated Floor Side Bend
Side of the trunk (latissimus dorsi and obliques)

Assisted Seated Side Bend
Side of the trunk (thoracic side-bending)

Side-Lying Lateral Stretch
Side of the trunk, rib cage and pelvis
When it works in Pilates
They work as the straps are drawn down to the sides of the body in Supine Arm Press and Supine Arm Circles. Watch that the shoulders do not hunch and the ribs do not flare forwards as the arms pull.
Exercises with the latissimus dorsi as a main muscle (8)

Supine Arm Press
Reformer PilatesKeep the arms long and lower them towards the sides of the body.

Supine Arm Circles
Reformer PilatesMove both arms from the shoulders, lowering the hands towards the sides.

Curl Up · Single Leg Stretch
Reformer PilatesCurl the upper trunk, lower the arms and reach the selected leg forwards on a diagonal.

Prone Pull & Arm Circle
Reformer PilatesDraw the arms towards the sides and move them through an outward arc.

Hip & Shoulder Movement
Reformer PilatesKeep the elbows extended while flexing the shoulders and sending the carriage backwards.

Quadruped Pull & Extension
Reformer PilatesDraw the elbow towards the side, then extend it while maintaining the upper-arm position.

Tall Kneeling Shoulder Circle
Reformer PilatesCircle the arms outwards from the sides and lift them in front of the shoulders.

Rowing & Twist
Reformer PilatesDraw the elbow towards the side while rotating the rib cage in the same direction.
Exercises with the latissimus dorsi in a supporting role (1)
In daily life
Sliding a door shut, pulling on a rope and drawing yourself up with a handrail.
About this page
The muscle descriptions are general anatomy, and bodies vary. They do not assess your body or promise any particular result. If you feel pain or discomfort, stop and talk to a qualified professional.
Sources, review and revision policy