concave in the plane of CMC abduction/adductionĭuring CMC abduction or adduction (in a direction perpendicular to the palm), the metacarpal rolls and glides in opposite directions.Compare it with the figure in your text (Hertling & Kessler, 1996, Fig. 287) depicts the plane for CMC abduction/adduction. The diagram (Norkin & Levangier, 1992, p. The first metacarpal articulates with the trapezium. In these positions, the capsular fibers are maximally elongated and taut, and so prevent CMC rotation. You cannot passively rotate the CMC when you place it in full opposition or full reposition these are the CMC joint's close packed positions. combined CMC extension and adduction produces CMC reposition.combined CMC flexion and abduction produces CMC opposition.However, its loose capsule permits rotation, and the metacarpal rotates automatically when it moves in the other two planes. Why do we name CMC movements in this manner? Some therapists refer to extension as "radial abduction," because the thumb moves toward the hand's radial side. The thumb's MP and CMC joints flex and extend in a plane parallel to the palm. Some therapists also refer to abduction as "palmar abduction."Ģ. The thumb's MP and CMC joints abduct and adduct in a plane perpendicular to the palm. Naming of movements at the first CMC joint.Adduction involves pulling one or both of them toward your midline.CMC Joint of the Thumb CMC Joint of the Thumb The bottom line : Abduction refers to a movement in which you pull one or both of your arms or legs away from the midline of your body. “Training adduction and abduction exercises for the hip compound is integral for healthy flexion of the hip, and can even contribute to healthy lower back, knee, and neck movement,” says Neiman. All that adds up to noticeable gains especially lifting heavier weights. They also help with body awareness and boost balance as you slowly (yet steadily!) adjust to the moves. Benefits of both abduction and adduction exercises include increased strength. “In order to have a strong and healthy body, it’s important to train all movement patterns,” Neiman says. When you work in abduction and adduction exercises, you're naturally adding contrast to your routine. This is especially important when talking about hip mobility, which is the epicenter of our bodies.” “Simply put: The more varieties in which you train your body, the more mobile you’ll be. Neiman recommends doing both for the same amount of time. The key is working through abduction and adduction moves together. Investing in both equally is what helps with mobility, according to Neiman. Here are a few of the perks that come with them:īetter range of motion. Neiman recommends three sets of 10 to 15 reps.īenefits Of Abduction And Adduction Movesīy now, you've realized it's not just a fun vocab lesson, and abduction and adduction moves are important for your overall fitness and in daily life. Push off the right heel to an upright standing position.Take a big step to the right, then push hips back, bending right knee and lowering until right knee is bent to 90 degrees.Stand with feet hip-width apart, hands at sides.Ashley Joi, CPT, is a Los-Angeles based trainer and featured trainer on Chris Hemsworth’s Centr app. CJ Hammond, CPT, is a trainer for RSP Nutrition, and owner of sports performance gym Gym Legend, where he works on incorporating scientific-integrated programs within his workout routines. Meet the experts: Noah Neiman is the head trainer and co-founder of Rumble Boxing, with decades of fitness industry experience. “They both use muscles that help in other, more complex movements-and by knowing how to work the two, you can make your strength and alignment more powerful.” “It’s really easy to confuse the two, but knowing the difference between adduction and abduction exercises can help you train better,” says CJ Hammond, CPT, trainer for RSP Nutrition and owner of sports performance gym Fit Legend. Understanding these practically identical terms can go a long way toward helping you fine-tune your form, avoid injury, and train efficiently. Today's words are adduction and abduction.
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