Oliver Bee RMTRegistered Massage Therapist

Massage therapy · Kitchener–WaterlooTennis Elbow

Elbow, Wrist & Hand

What It Is

Line drawing of the back of the forearm and hand in several views, showing the wrist and finger extensor muscles running from the outer elbow down to tendons over the back of the hand.
These are the muscles that lift the wrist and fingers — they all anchor at the outer elbow, where tennis elbow sits.
Line drawing of the front of the forearm in four views, showing the layered wrist and finger flexor muscles running from the inner elbow down to tendons in the palm.
On the palm side, the gripping and wrist-curling muscles share an anchor at the inner elbow — golfer's elbow territory.

Tennis elbow (known as lateral epicondylitis) is a painful condition of the elbow caused by overuse. Playing tennis and other racquet sports can cause this condition to occur, but there are other activities and sports that can place you at risk (American Academy of Orthopaedic Surgeons, n.d.). You can get tennis elbow from activities that involve gripping something and repeatedly twisting your wrist and forearm, such as computer work (typing or using a mouse), using a screwdriver or playing a musical instrument (NHS, 2024). Tennis elbow involves wearing down (degeneration), and in some cases tiny tears, of the tendons that join the forearm muscles on the outside of the elbow (American Academy of Orthopaedic Surgeons, n.d.). It was traditionally thought of as an inflammation, but research now describes it mainly as a degenerative, rather than inflammatory, tendon problem (Cutts et al., 2020). Repeating the same movements over and over can irritate the tendon attachments, which leads to tenderness and pain on the outer part of the elbow.

The pain may be worse when lifting or bending your arm, gripping objects or moving your wrist. Tennis elbow usually gets better with rest, but it can sometimes last over a year (NHS, 2024).

Tennis Elbow Anatomy

The elbow joint is made up of three bones: the upper arm bone (humerus) and the two bones of the forearm (ulna and radius). Bony bumps at the bottom part of the humerus are referred to as the epicondyles. The bony bump on the outside of the elbow is known as the lateral epicondyle. Ligaments, muscles and tendons all hold the joint together.

Tennis elbow involves the tendons and the muscles in the forearm. These forearm muscles work to extend (straighten) the fingers and the wrist. The forearm tendons attach the muscles to the bone, at the lateral epicondyle. The tendon that is most often involved with this condition is the extensor carpi radialis brevis (American Academy of Orthopaedic Surgeons, n.d.).

Not a diagnosis — for more information, contact me or another trusted healthcare provider.

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At Fearless Heart, 25 Dupont St E in Uptown Waterloo, or as a home visit across Kitchener–Waterloo.