"I had a stroke 4 years ago and am partially paralyzed on my left side. The Power Grip Pedals makes it easier for me to peddle my trike. My only suggestion would be to add an additional strap to go around the back of my ankle to ensure that my foot doesn't slip off the peddle when I get tired. I use a flexible velcro strap but I need help to put it on. If the back strap was part of Power Grip Pedal it would be more secure and easier to use independently. Thanks for a great riding experience!"