4.1.2.A RangeMotion updated.pdf - Activity 4.1.2 Range of...

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Activity 4.1.2: Range of Motion Introduction You come home from school, run up the stairs and throw your backpack on your bed. This sequence of events took only minutes, but used joints in your ankles, knees, elbows, shoulders, and wrists. You realize that when you threw your bag, your cell phone slid under your dresser. You try to reach it, but you can not seem to get your arm back far enough. Your twin sister comes in and offers to help. She bends down, stretches and twists her arm and almost instantly, you have your phone back. If we all have the same general arrangement of bones and joints, why was she able to reach the phone with ease when you did not even come close? Range of motion (ROM) studies assess joint motion and provide a measure of overall flexibility. You may have heard of people who are “double-jointed.” This does not mean that they have twice as many joints as you do; rather, the ones they do have are unusually flexible. We often use the everyday terms such as bend and flex
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