Triceps (back of the upper arm)
The back of the upper arm. Keeps the elbow straight.
Where is it?
The muscle at the back of the upper arm. It has three heads; the long head starts from the shoulder blade (scapula), so it crosses the shoulder joint as well.
Muscles included: triceps brachii (long, lateral and medial heads)
Main actions
- Straighten (extend) the elbow
- Hold the elbow straight while the hands support the body
- The long head helps take the arm backwards
Stretches that lengthen the triceps (2)
When it works in Pilates
They work in exercises where the hands support the body, such as Reverse Plank, and in strap work that presses backwards. Check that the elbow is held by the muscles rather than by locking the joint.
Exercises with the triceps as a main muscle (2)
Exercises with the triceps in a supporting role (13)
Supine Arm Press, Supine Arm Circles, Curl Up · Single Leg Stretch and others: show all 13
Supine Arm PressSupine Arm CirclesCurl Up · Single Leg StretchSwan on Long BoxResistance Cat BackQuadruped Rear DeltoidQuadruped Trunk ResistTall Kneeling Shoulder CircleKneeling Side PlankArm Arcs · Overhead ReachSwan Prep · Low Chest LiftHundred Prep · Feet SupportedSide Bend Prep · Bent Knees
In daily life
Pushing things, pressing up with your hands to stand, and holding something at arm’s length.
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.
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