Long term cycling can cause the hamstring muscles to shorten as a result of the knees being bent over an extended period of time. (infinitelifefitness.com)
Slowly lower your hips until both knees are bent at about a 90 - degree angle and the left knee is close to touching the floor. (fitnessandpower.com)
Step backward with your right leg and slowly lower your body until your front knee is bent at least 90 degrees. (womenshealthandfitness.com.au)