BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Textbook Question
Chapter 5, Problem 7IP
How is flexibility related to the likelihood of injury?
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What is neuromuscular efficiency and synergistic dominance? How do these terms relate to “good” and/or “altered” posture?
ney:
Load (L) = 5 kgs
= Effort
E = Fulcrum
Weight of forearm = 1.8 kgs
L = Load
Biceps brachii
muscle
Distance of load from elbow joint = 35 cm
%3D
Effort (E) = contraction
of biceps brachii
Distance of center of mass of forearm from elbow = 17 cm
Distance of tendon from elbow = 4 cm
A) Draw the free-body diagram to represent the forces and moments
Load (L) = weight of
object plus forearm
B) Write the torque equation for static equilibrium
Fulcrum (F) = elbow joint
How does exercise prevent injury?
How do you use the FITT principle for a beginner?
What exercise causes the most injuries?
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, bioengineering and related others by exploring similar questions and additional content below.Similar questions
- Muscular endurance is defined as the: O a) ability of a muscle to contract repeatedly over an extended period of time b) amount of force a muscle can produce with a single maximal effort O c) ability to move the joints through a full range of motion O d) amount of time required to contract a muscle completelyarrow_forwardIsometric exercise is best described as applying a force O a) with movement through a full and complete range of motion O b) while a muscle is lengthening and returning to a resting position c) without any change in length of the muscle O d) at a constant speedarrow_forwardDefine synergistic effectarrow_forward
- demonstrate an understanding of and assess factors that affect performance during human movement.arrow_forwardplease explain in detail in your own words Differentiate between muscle tone, postural tone and pathological tension in the muscles. Classify free exercises and what are the effects and uses of free exercises?arrow_forwardWhen will arm span and knee height be used? Are there any limitations on using these two methods?arrow_forward
- According to the free-body diagram, which forces act on both teams and rope before motion begins and in which directions?arrow_forwardWith regards to transversus abdominus, how does its activation differ during a simple shoulder flexion task, in subjects with and without a history lower back pain? Is this the cause of or the result of lower back pain?arrow_forwardDiscuss physiological and pathological influences on mobility ?arrow_forward
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