EBK BASIC BIOMECHANICS
7th Edition
ISBN: 8220100409455
Author: Hall
Publisher: MCG
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Chapter 8, Problem 3IP
INTRODUCTORY PROBLEMS
3. Construct a chart listing all muscles crossing the ankle joint according to whether they are anterior or posterior to the joint center. Note that some muscles may fall into more than one category. Identify the action or actions performed by the muscles listed in the four categories.
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The three main forces that act on the patella are shown on
the diagram of the knee joint below. These forces are the
quadriceps muscle force (FQ), the patella ligament force
(FPL), and the patellofemoral joint reaction force (FPF). The
angles a and ẞ are with respect to a line that is
perpendicular to FPF. Assuming a = 15°, ẞ = 20°, and FQ =
3725 N, use equations for static equilibrium to calculate (a)
FPL, and (b) FPF. (Hint: To solve this problem consider using
a coordinate system that is aligned with the principal axes
of the patella instead of the usual vertical and horizontal
axes). (c) Many people assume FQ and FPL are always equal
in magnitude but this is only true under certain
circumstances. Under what conditions are FQ and FPL equal
in magnitude?
Fo
FPF
FP B
GriffithUNIVERSITY
Queensland Australia
Give the correct instructions on how to perform the following skills under locomotor & non locomotor movements.
Locomotor
1.crawl
2.creep
3.jump 4.walk
5.lunge turn
6.squat turn
Non locomotor
1.Standing position
2.Sitting pos.
3.Kneeling pos.
4.Lying pos.
5.Arm support pos.
6.Four base pos.
7.Hand pos.
8.Arms pos.
Chapter 8 Solutions
EBK BASIC BIOMECHANICS
Ch. 8 - INTRODUCTORY PROBLEMS 1. Construct a chart listing...Ch. 8 - INTRODUCTORY PROBLEMS 2. Construct a chart listing...Ch. 8 - INTRODUCTORY PROBLEMS 3. Construct a chart listing...Ch. 8 - INTRODUCTORY PROBLEMS 4. Compare the structure of...Ch. 8 - INTRODUCTORY PROBLEMS 5. Compare the structure of...Ch. 8 - INTRODUCTORY PROBLEMS 6. Describe sequentially the...Ch. 8 - INTRODUCTORY PROBLEMS 7. Describe sequentially the...Ch. 8 - INTRODUCTORY PROBLEMS 8. Describe sequentially the...Ch. 8 - 9. Use the diagram in Sample Problem 8.1 as a...Ch. 8 - Prob. 10IP
Ch. 8 - ADDITIONAL PROBLEMS 1. Explain the roles of...Ch. 8 - ADDITIONAL PROBLEMS 2. Explain the sequencing of...Ch. 8 - Prob. 3APCh. 8 - ADDITIONAL PROBLEMS 4. Which muscles of the lower...Ch. 8 - ADDITIONAL PROBLEMS 5. The squat exercise with a...Ch. 8 - ADDITIONAL PROBLEMS 6. Explain why compression at...Ch. 8 - Prob. 7APCh. 8 - ADDITIONAL PROBLEMS 8. Explain why lifting a heavy...Ch. 8 - ADDITIONAL PROBLEMS 9. Explain how excessive...Ch. 8 - Prob. 10AP
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- Name 4 exercises that include VARIOUS DIRECTIONAL LOCOMOTOR & BALLISTIC MOVEMENTS, 3 PLANES OF MOVEMENTS.arrow_forwardCompare your results for the 3 conditions (see figure 1 above): Extend hand with no weight Extend hand with weight Flex hand with weightarrow_forwardGIVE 3 EXERCISES THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH ABDUCTION AND ADDUCTION MOVEMENT. WHY?arrow_forward
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