BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Textbook Question
Chapter 5, Problem 2IP
Describe the directions and approximate ranges of movement that occur at the joints of the human body during each of the following movements:
a. Walking
b. Running
c. Performing a jumping jack
d. Rising from a seated position
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Using approximately 400-500 words, choose a sports skill you wish to analyze (note this will be the same sports skill used in a future Unit). Some examples include a free throw shot, softball pitch, soccer kick, baseball swing, etc. Discuss what movements occur at the ankle, knee, hip, spine, shoulder, elbow, and wrist. Compare the movements bilaterally, or both sides. In which planes do these movements occur? What axis of rotation occurs at each joint? Include at least two scholarly references (using APA formatting and style) to guide your answers.
An isometric exercise is one in which the joint angle does not change during the application of muscle force. For instance, you can join your hands together, pushing down with one hand and pushing up with the other. In each arm, the muscles that provide the force are connected to the bones of the arm by tendons. If you increase the forces but keep the angles the same, the muscles will still contract. Explain how this is possible.
Which of the following is true regarding internal/external rotation of the knee?
A. Can occur at any angle of knee flexion
B. Greater range of motion in internal rotation
C. During initial flexion from full extension, knee must unlock by externally rotating
D. The popliteus is the muscle responsible for “unlocking” the knee
Chapter 5 Solutions
BASIC BIOMECHANICS
Ch. 5 - Prob. 1IPCh. 5 - Describe the directions and approximate ranges of...Ch. 5 - Prob. 3IPCh. 5 - Prob. 4IPCh. 5 - What factors contribute to flexibility?Ch. 5 - Prob. 6IPCh. 5 - How is flexibility related to the likelihood of...Ch. 5 - Prob. 8IPCh. 5 - Explain why grip strength diminishes as the wrist...Ch. 5 - Why is ballistic stretching contraindicated?
Ch. 5 - Prob. 1APCh. 5 - How is articular cartilage similar to and...Ch. 5 - Prob. 4APCh. 5 - Discuss the relative importance of joint stability...Ch. 5 - What specific exercises would you recommend for...Ch. 5 - What specific exercises would you recommend for...Ch. 5 - Prob. 8APCh. 5 - Prob. 9APCh. 5 - What exercises would you recommend for senior...
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