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Strengthen Muscles With Stationary Bike Exercise You can still get a great exercise from a stationary bike even if you don't wish to or aren't able to attend a cycling class at your local gym. This type of exercise helps to burn calories, build muscles and even ease arthritis symptoms. One of the primary muscles to be worked during cycling workouts is the hip flexor muscles. This muscle contracts in the second half of the pedal stroke, bringing your straightened leg up to