PFLEXX was first designed as a rehabilitative aid for individuals recovering from injuries or surgeries, suffering from arthritic pain, or just hoping to build up their muscle strength. Some doctors even recommend wearing the PFLEXX Compression Knee Support Trainer for up to twelve weeks prior to knee replacement operations to strengthen the muscles around the knee, which will subsequently shorten post-surgery recovery time. Arthritis sufferers find support from the recoil action of the springs in the Compression Knee Support Trainer helps ease leg movement. The best form of treatment for arthritis is exercise, which can be difficult, painful, and tiresome for sufferers. The PFLEXX springs help alleviate pain during activity by absorbing some of the impact and providing stability.
Over time, the PFLEXX braces have evolved to appeal to a large audience for a wide variety of applications in addition to its humble, therapeutic origins. Athletes of all sports look to PFLEXX as a way to strengthen their muscles and prevent future injury, as well as a rehabilitative aid to minimize recovery times after sport-related injuries. People looking to enhance their personal exercise regimens turn to PFLEXX as a way to add resistance and make their workouts more intense and effective. Individuals suffering from weak joints wear PFLEXX braces while going about their day-to-day lives to strengthen those joints and increase their quality of life.
PFLEXX technology is based around two Power Springs fitted to either side of the joint that work naturally against physical movement, providing resistance and requiring more muscular pressure to move which in turn builds and strengthens muscles. University studies have shown that PFLEXX braces increase muscle activation up to 30% when walking and up to 400% when running. In the Compression Knee Support Trainer, affected muscle groups include the quads, hamstrings, calves, and glutes. Each brace comes with three sets of different resistance Power Springs that can easily be changed out, allowing users to adjust the brace to their preferred resistance level, and also providing a progressive path for rehabilitative or strength-building programs.
The compression aspect of the PFLEXX encourages healthier blood flow, which can help alleviate pain, disperse lactic acid, and generally speed recovery times. The Advansa ThermoCool textile material wicks away moisture and keeps you warm in cold environments and cool in hot environments, making the brace comfortable for extended wear any time of the year. The braces can be worn specifically during exercising or physical therapy sessions, but they can also be used day-to-day, allowing for muscle strengthening, therapeutic resistance, and arthritic comfort on the go.
For proper fitting, measure 6" (15 cm) above and below the center of your knee, like the image below.
| Sizing Chart for the PFLEXX High Compression Knee Support Sleeve Trainer |
| Size |
Thigh Circumference |
Calf Circumference |
| Small |
16.14" - 17.32" (41 - 44 cm) |
12.2" - 13.39" (31 - 34 cm) |
| Medium |
17.32" - 18.5" (44 - 47 cm) |
13.39" - 14.57" (34 - 37 cm) |
| Large |
18.5" - 19.69" (47 - 50 cm) |
14.57" - 15.75" (37 - 40 cm) |
| X-Large |
19.69" - 20.87" (50 - 53 cm) |
15.75" - 16.93" (40 - 43 cm) |
| XX-Large |
20.8" - 22" (53 - 56 cm) |
16.93" - 18.11" (43 - 46 cm) |
Spring resistance levels:
White: 3.5 kg
Yellow: 5 kg
Black: 7.5 KG
This product was featured in the following articles: 
