Bottom Knee Pain

RapidForce Muscle-Support Shape - U Shape

RapidForce® Shapes stabilize and support the muscles, tendons, and ligaments in the knee. The U Shape is designed to reduce swelling by gently lifting the skin above the pain point, which can help circulate blood, oxygen, fluids, and nutrients to an injury site.

Pain below the knee or kneecap—in the front or anterior of the knee—is very common in both athletes and non-athletes. The knees bear most of the body’s weight and also take the force of many athletic and day-to-day movements, such as twisting, bending, turning, and kicking.
Bottom knee pain will be located just below the knee, on the outer edge of the kneecap (AKA the patella). The pain can range from a general ache to a sharp pain to stiffness, and a burning feeling can occur in more severe cases. The knee or kneecap may also appear mildly swollen or be tender to touch, and some people experience a clicking or grinding sensation.
Pain the bottom of the knee usually occurs after overuse of the knees, often from a sudden increase in athletic or physical activity, running, excessive walking, or other repetitive movements that might put extra strain on the knees. It can also be the result of weak, under-conditioned knee or leg muscles. Bottom knee pain is often caused by irritation of the tissues or tendons around the kneecap, worn-down cartilage in the knee, or dislocation or misalignment of the kneecap.
RapidForce® U Shapes are designed to reduce pain in the bottom of the knee or kneecap. The Shape’s central core adheres to the skin directly above the point with the most pain, which stabilizes the injury site, and the dual arms are stretched outwards, creating structural support. The U Shape also provides some mechanical lift, which is intended to lift the upper layers of skin so blood, oxygen, nutrients, and fluids can flow to the injury site more efficiently.
RapidForce® Shapes are unlike any other pain-relief product on the market today. Each shape’s design was carefully developed and perfected by a team of physical therapists, athletic trainers, engineers, and an ultrasound technician who sought to create a product that supports the muscles and helps relieve pain caused by muscle, tendon, joint, and ligament injuries. RapidForce® Shapes are used by athletes at all levels, including professional athletes, semi-pro athletes, and people who lead or want to lead an active lifestyle.

If you'd like assistance choosing the best RapidForce® Shape for your needs, please email us at

Disclaimer: Please see your medical professional with any kind of pain. Pain could be an indication of a serious condition. RapidForce® Shapes are not meant to replace professional medical advice, professional treatment, or a professional treatment plan.

RapidForce Shapes for Bottom Knee Pain Relief

U Shape

From $9.95

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Application Instructions

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Time it Right

While RapidForce® Shapes can be applied at any time, they should be applied 1–2 hours before beginning strenuous physical activity. The Shapes can start working is as little as two hours, but some applications take up to four hours.

Prep Skin Thoroughly

Wash and dry the skin to remove oils, moisture, and dirt. Trim or shave body hair; this helps create a more secure bond and more comfortable removal. Apply the provided Skin Tac liquid adhesive wipe. Allow 30 seconds for it to dry.

Customize Stretch

Secure the Shape’s central core to the most painful spot. For daily wear or moderate-to-light athletics, a mild stretch of 1” is ideal. Application instructions vary based on Shape, so read and follow the instructions mailed with your shape(s).

Secure Bond

With both the Shape and the skin at room temperature, carefully begin applying the shape. Once the shape is secure, rub it vigorously to maximize adhesive bond to skin.

  1. 1. Apply the center of the U Shape

    1. Apply the center of the U Shape

    Press around the bottom of the knee to find the area with the most pain. With the knee slightly bent, peel off the backing of the center of the U Shape and place directly over this area. Press to secure the bond.

  2. 1. Apply the center of the U Shape

    2. Apply the arms around the joint - 1" Stretch

    Peel off the middle backing of one of the arms of the U Shape, leaving the end tab in place. While stabilizing the center with one hand, customize stretch for level of activity and place the arm of the Shape around the joint. Stay one finger’s width from the kneecap to encapsulate the joint. Smooth the fabric onto the skin, moving from the center of the U Shape outwards. Remove the backing from the end tab and place on the skin. Do not stretch this small piece. Press over the entire arm of the U Shape for about 10 seconds to secure bond. Apply the second arm using the same method as the first arm.

  3. 1. Apply the center of the U Shape

    3. Feel Relief and Remove

    You may begin feeling relief within a few hours. However, it could take up to 24 hours. RapidForce shapes can provide pain relief and muscle support for up to five days but can be removed at any time. To remove, pull from the end of the arms to the center. If hair is present, pull in the direction of the hair’s growth to reduce discomfort. For easier removal, use mild warm water in the shower and then remove the shape slowly.