Basic Biomechanics
7th Edition
ISBN: 9780073522760
Author: Susan J Hall
Publisher: McGraw-Hill Education
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Chapter 9, Problem 4AP
Summary Introduction
To explain: The reason why an individuals who work at desk all day often develop low back pain.
Concept introduction: Spine is made up of vertebral columns and discs that form curvature. Spine curves help to reduce the stress from the movement of the body and its gravity. Spina allows motion in all three movement planes. The range of motion is facilitated by the anatomical constraints that differ through cervical, thoracic, and lumbar regions of the spine.
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Exercise 2. Identify all the labeled items. Note some are sulci and some are gyri not just the main section of the brain.
Place your answers in table E2.
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VII. Real life problem. You are a trainer and are called on to the field where a player is down with a severe cramp of his right hamstring (biceps femoris) muscle. You know that cramps are caused by over-active motor nerve activity to the muscle. Your associates want to stretch the cramping hamstring, but you say, “No! I want the player to concentrate on contracting his right quadriceps muscles before we stretch.”
2. Why would contracting the opposing muscle rapidly improve the situation?
Chapter 9 Solutions
Basic Biomechanics
Ch. 9 - INTRODUCTORY PROBLEMS 1. What regions of the spine...Ch. 9 - INTRODUCTORY PROBLEMS 2. Construct a chart listing...Ch. 9 - INTRODUCTORY PROBLEMS Construct a chart listing...Ch. 9 - INTRODUCTORY PROBLEMS Construct a chart listing...Ch. 9 - INTRODUCTORY PROBLEMS How would trunk movement...Ch. 9 - INTRODUCTORY PROBLEMS What are the postural...Ch. 9 - INTRODUCTORY PROBLEMS Weight training is used in...Ch. 9 - INTRODUCTORY PROBLEMS What exercises strengthen...Ch. 9 - Prob. 9IPCh. 9 - Solve Sample Problem 9.1 using the following data:...
Ch. 9 - Prob. 1APCh. 9 - ADDITIONAL PROBLEMS 2. What exercises should be...Ch. 9 - ADDITIONAL PROBLEMS 3. Compare and contrast the...Ch. 9 - Prob. 4APCh. 9 - Prob. 5APCh. 9 - ADDITIONAL PROBLEMS 6. Formulate a theory...Ch. 9 - Prob. 7APCh. 9 - Prob. 8APCh. 9 - ADDITIONAL PROBLEMS 9. What spinal exercises are...
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- II. Real life problem. You are a trainer and are called on to the field where a player is down with a severe cramp of his right hamstring (biceps femoris) muscle. You know that cramps are caused by over-active motor nerve activity to the muscle. Your associates want to stretch the cramping hamstring, but you say, “No! I want the player to concentrate on contracting his right quadriceps muscles before we stretch.” Why might stretching a cramping muscle INCREASE the cramping?arrow_forwardStudentVUE Perioc Block 1-Math Nearpod: Make ev X A app.nearpod.com/presentation?pin3DNW6D9 Question 1/5 Motion can be described by all of the following except... speed. B. direction. C. size. answerls selecarrow_forward7. Nursingarrow_forward
- I. INSTRUCTION: Compute for the following given problem. 1. Emily can lift 21 kg (210 newtons force) using muscles that have a cross-sectional area of 6 cm2. Use this formula to work out how many newtons per square centimetre her muscles can pull with: Formula: Force/Areaarrow_forwardWhat are the benefits when performing movement based exercises and how does your body react?arrow_forward1. Explain why isokinetic work is more beneficial towards the later stages of the rehabilitation process compared to isometric and isotonic muscle actions? 2. Describe what influence may be the #1 factor that may influence the rate of sustaining injuries in sports and why.arrow_forward
- 3 E there to search D Calculate the ankle torque during initial gait contact from the following data set to 1 decimal place. NOTE if your answer is negative put the negative sign in the answer! FZ 765 N 4 с Fx-290 N CoP z 0 m Cop x 0.51 m Ankle z 0.074 m Ankle x 0.62 m Answer Check R F 96 5 Bi T G B 6 y H N U J 8 M 1 hp к Ji C 9 9 P O alt gr O P ? ctri 910- C > pri se 1 GBP/AUD-0.41% pause # ← tock Next page 7 11:26 02/12/2023 1 end ☐ po up 5 Carrow_forwardMove Making Connections, Student Laboratory Packet, page 5 A2. How Does Fatigue Affect Muscle Performance? A condition known as muscle fatigue occurs when certain waste products of muscle cell activity build up in the cells. Until these waste chemicals are removed, the fatigue will continue. Do the Following Activity Hold a spring-type clothespin between your thumb and index finger. Pinch the ends together completely (until the two ends touch) and release them. Do this as rapidly as possible for one minute. Record the number of times you could squeeze the clothespin in one minute: Try the activity again, doing it the same way and using the same two fingers as before. Record the number of times you could squeeze the clothespin the second time: Answer the Following Questions Some people are able to squeeze the clothespin more times in a minute than others. Suggest a possible explanation for this. Could you do as many in a minute the second time as you could do the first time? Provide a…arrow_forwardWork 6. Comparison of physiological properties of different types of muscles. TABLE 4. SKELETAL MUSCLES SMOOTH MUSCLES RESTING POTENTIAL (LEVEL, IN MV) DURATION OF ACTION POTENTIAL CALCIUM-BINDING PROTEINS DURATION OF THE CYCLE CONTRACTION-RELAXATION AYTOMATICITY NTERCELLULAR CONTACTS SENSITIVITY TO BIOLOGICALLY ACTIVE SUBSTANCESarrow_forward
- 4. Define the Myopia Problem and Discuss 2 solutions to the myopia problem?arrow_forward1) Why do you think movement variability can be functional? 2) An example of a motor skill that requires movment variability, How does the concept of movment variabilty relate to this activity?arrow_forwardWrite the name in illustration on the blankarrow_forward
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