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Group Fitness Instructor

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Sally is starting a group cycling class after a 4 month absence due to a knee injury. She has been cleared by her physical therapist (PT) to perform gentle, slow Range of Motion exercises on a bike with an elevated seat height. What is meant by the term Range of Motion (ROM)?
  1. The amount of motion that a person can tolerate in any given exercise session
  2. The amount of movement that a person can make before injury occurs
  3. The distance and direction in which a particular joint can move
  4. The amount that a joint can be moved before injury occurs
Explanation
Answer: C - Range of motion is defined as the distance and direction in which a particular joint can move. Each joint has a normal range of motion. For example, a typical knee joint will have a range of motion of 0-130° of flexion, over 100° of which are needed to pedal a bike. If Sally raises the set height on the cycle, her knee will not need to flex as much in order to execute a full 360° rotation. She can work on executing a full, painless rotation at the elevated height and then gradually drop the seat height as instructed by her PT.
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