Exercises for Thumb Arthritis and Osteoarthritis based on Last Evidence
One of the main treatment for thumb Osteoarthritis is to exercise thenar muscles. That could releive your Pain and Stiffness in your finger.
If you prefer, you could watch the video in Youtube:
The therapeutic purpose of this protocol is to recover the lost length of the Adductor Pollicis (TA), and to re-educate the motor control of the Opponent Pollicis (OP), the Abductor Brevis Pollicis (ABP) and the First Dorsal Interosseous (FDI). In this way, it is possible to correct the unbalanced position of the thumb as in this picture:
How to perform my Thumb Exercises?
1. Thumb exercise with a Tennis Ball
Using a tennis ball, the patient places it in the palm of the hand and grabs it, in a way that allows us:
– to maintain palmar arc.
– to bring the MCF joint into flexion and the CMC into abduction.
With this position he will be asked to squeeze the ball, taking the emphasis off the fingertips. In this way, a more efficient contraction of the tenar and extrinsic muscles will be possible.
2. “Bunny Ears” Exercise
Taking advantage of the same position as in the previous exercise with the ball, we will separate the 2nd and 3rd fingers of the ball, leaving them relaxed, and forming the “ears of the rabbit“. In this position, I’ll ask for an isometric contraction by squeezing the ball, taking the emphasis off the fingertips, as we did before.
It is important that when doing so we can observe the rotation/pronation of the thumb, as this is an indication of contraction of the OP.
3. First Dorsal Interosseous Exercise
With this exercise we look for the specific contraction of this muscle, which will allow us to correct the unstable position of the base of the first metacarpal.
With the same position with the ball in the palm of the hand, we will add an elastic around the fingers, leaving out the thumb. In this position we will request an extension and abduction of the 2nd finger. The muscular belly of the FDI will be clearly observed.
According to the American Collegue of Sport Medicine, it is recommended to perform them at 40-50% of the patient’s maximum effort, in 5-second isometry, and without pain. 10-15 repetitions of each will be performed every two days.
Here you have complete publication:
More Thumb exercises in ReHand App
If you need more exercises for you Thumb, you can obtain it in your own tablet with ReHand App. Here we show an exercise example working thenar muscles.
DeMott, L. (2017). Novel isometric exercises for the dynamic stability programs for thumb carpal metacarpal joint instability. Journal of Hand Therapy, 30(3), 372-375. https://doi.org/10.1016/j.jht.2016.09.005.
Pablo Rodríguez Sánchez-Laulhé
Physiotherapist and Health Researcher