BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Chapter 12, Problem 5AP
Summary Introduction
To explain: The relationship between
Concept introduction: Mechanical work is the quantity of energy transfer by a force acting on an object. It is equal to the product of force and displacement of the body.
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A 25 year old male athlete who weighs 75 kg and is 178 cm tall consumes 3200 kcal's/day. His daily physical activity level would be considered heavy.
Based on this information, what is his predicted daily energy expenditure? With his current diet and activity level, is he in positive, negative, or neutral energy balance?
Discuss briefly (in less than 100 words) the practice of carbohydrate loading for endurance in aerobic exercise. What is the role of glycogen metabolism (glycogenesis and glycogenolysis) and glycolysis in carbohydrate loading? Why is this practice more productive than usual without carbohydrate loading?
From the table below which shows the metabolic rate for each activity, if a person with height 1.50m and weight of 60kg completed all these activities in one day. Calculate the person's one day energy expenditure using Harris-Benedict Equation.
Activity8hr sleeping (35 Cal/m^2 -hr)8hr moderate physical labor (150 Cal/m^2 -hr)4hr reading, writing, TV watching (60 Cal/m^2 -hr)1hr heavy exercise (300 Cal/m^2 -hr)3hr dressing, eating (100 Cal/m^2 -hr)
A. 569.33 cal
B. 850.20 cal
C. 996.07 cal
D. 720.50 cal
Chapter 12 Solutions
BASIC BIOMECHANICS
Ch. 12 - How much force must be applied by a kicker to give...Ch. 12 - A high jumper with a body weight of 712 N exerts a...Ch. 12 - What factors affect the magnitude of friction?Ch. 12 - If s between a basketball shoe and a court is...Ch. 12 - A football player pushes a 670-N blocking sled....Ch. 12 - Lineman A has a mass of 100 kg and is traveling...Ch. 12 - Prob. 7IPCh. 12 - A ball dropped on a surface from a 2-m height...Ch. 12 - A set of 20 stairs, each of 20-cm height, is...Ch. 12 - A pitched ball with a mass of 1 kg reaches a...
Ch. 12 - Identify three practical examples of each of...Ch. 12 - Prob. 2APCh. 12 - A 2-kg block sitting on a horizontal surface is...Ch. 12 - Explain the interrelationships among mechanical...Ch. 12 - Prob. 5APCh. 12 - A 108 cm, 0.73-kg golf club is swung for 0.5 s...Ch. 12 - A 6.5-N ball is thrown with an initial velocity of...Ch. 12 - Prob. 8APCh. 12 - Using the principle of conservation of mechanical...Ch. 12 - Prob. 10AP
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