Chapter One Biomechanics
Which of the following conversions is accurate? A. 2.54 cm = 1 in B. 2.54 in = 1 cm C. 4.45 lb = 1 N D. none of the above
2.54cm = 1 in
A 200 lb. man weighs approximately what in metric units?
890 N
Biomechanical research has contributed to which of the following? A. injury prevention B. enhanced sport performance C. equipment design D. all of the above
All
Exercise walking can have which of the following effects? A. improved balance in older adults B. decreased likelihood of falls in older adults C. decreased risk of osteoporosis for women D. all of the above
All
Possible detrimental effects of knee braces include(s) which of the following? A. changes muscle activity during gait B. reduces sprinting speed C. increases onset of fatigue D. all of the above
All
Which of the following affects the flight of a discus? A. speed at release B. projection angle C. orientation angle relative to the wind D. all of the above
All
Which of the following are anthropometric factors? A. the length of a forearm B. the shape of a body C. the weight of the trunk D. all of the above
All of the above
Which of the following are components of a structured approach to problem solving? A. writing down the given information B. drawing a diagram representing the problem situation C. rereading the problem to look for additional information that may be inferred from the problem statement D. all of the above
All of the above
Which of the following characterizes a formal problem? A. a goal or answer B. a set of given information C. a set of operations that can be used to arrive at the desired answer from the given information D. all of the above
All of the above
Which of the following professionals regularly make use of qualitative observations? A. teachers B. coaches C. clinicians D. all of the above
All of the above
Which of the following topics might be studied by biomechanists? A. optimal form during the pole vault B. forces on the spine during lifting C. the mechanics of the jump shot D. all of the above
All of the above
Biomechanics has roots in which of the following disciplines? A. physics B. biology C. both A and B D. neither A nor B
Both A and B
Which of the following could be performed by a biomechanist? A. quantitative analysis of human movement B. qualitative analysis of human movement C. both A and B D. none of the above
Both A and B
Which of the following is an example of a kinetic consideration? A. muscle force producing a vertical jump B. impact force landing from a jump C. both A and B D. neither A nor B
Both A and B
Which of the following is an example of a static situation? A. a cyclist riding at a constant velocity B. a person balancing motionless on one foot C. both A and B D. neither A nor B
Both A and B
Which of the following is included in sports medicine? A. clinical aspects of exercise and sport B. scientific aspects of exercise and sport C. both A and B D. neither A nor B
Both A and B
Which of the following is true about carpal tunnel syndrome? A. it is a neurological impairment B. it is associated with repetitive keyboard use C. both A and B D. none of the above
Both A and B
Which of the following is true regarding mechanics? A. branch of physics B. analyzes the actions of forces on particles C. both A and B D. none of the above
Both A and B
Which of the following questions about the long jump should be answered quantitatively? A. What is the horizontal velocity at take-off? B. What is the angle at take-off? C. both A and B D. neither A nor B
Both A and B
Which type of analysis involves identifying, analyzing and answering a question of interest? A. quantitative B. qualitative C. both A and B D. none of the above
Both A and B
The kinetics of an exercise or sport skill execution is commonly known as form or technique. [true/false]
FALSE
Which of the following countries uses the metric system?
France, Germany, Japan
Which of the following statements is true regarding qualitative analysis?
It does not involve the use of numbers
Which of the following is true about osteoporosis? A. it is a disease with acute onset B. it inevitably accompanies aging C. it is a lifestyle disease that develops and progresses over a number of years D. all of the above are true
It is a lifestyle disease that develops and progresses over a number of years
What is the base unit for mass in the metric system?
Kilogram
Which of the following is an example of equipment designed to enhance performance?
Klapskate aerodynamic helmet
In which of the following systems of measurement are units of the same variable related to each other by factors of ten?
Metric system
What does the word qualitative mean?
Pertaining to quality
What are the risk factors for osteoporosis?
Physical inactivity, estrogen deficiency, excessive consumption of caffeine
. Which of the following defines inference?
Process of forming deductions from available information
.The high incidence of knee injuries among snow skiers is partially due to which of the following?
Rigid boot which limit ankle motion
Force can be thought of as a push or pull acting on a body.
TRUE
More than half of all sport injuries are to the knee.
TRUE
Promising work in the development of intervention strategies has shown that the key to preventing falls may be the ability to limit trunk motion.
TRUE
Within the fields of kinesiology and exercise science, the living organism most commonly of interest to the biomechanist is the human body. [true/false]
TRUE
Biomechanical analysis has revealed which of the following about high velocity pitchers compared to lower velocity pitchers? A. they have greater internal rotation at the shoulder B. they have greater upright posture at release C. they have higher angular velocity of the pelvis and upper torso D. all of the above
They have higher angular velocity of the pelvis and upper torso
What term is given to considerations such as the size, shape, and weight of body segments?
anthropometric
Which of the following is true? A. No particular biomechanical factors have been associated with running economy. B. 3-year olds walking fast can use 70% more energy than adults. C. both A and B D. none of the above
both A and B
An overuse condition caused by compression of the median nerve, involving numbness, tingling and pain in the hand is called ___________________________
carpel tunnel syndrome
Which of the following is associated with kinematics?
displacement
Sport shoes are designed to prevent ____________________________ and enhance __________________.
excessive loading, performance
The branch of biomechanics which studies the actions of forces is called __________________.
kinetics
Which of the following would not be measured in a kinematic analysis of a tennis serve? A. angular velocity B. linear velocity C. muscular force D. angular acceleration
muscular force
Why is swimming not the best exercise for prevention of osteoporosis?
no weight bearing
A field that focuses on the prevention of work-related injuries and the improvement of working conditions and worker performance is known as ______________ biomechanics.
occupational
______________ refers to an excessive loss of bone mineral mass and strength resulting in one or more fractures
osteoporosis
Astronauts who travel out of the earth's gravitational field have experienced which of the following?
reduced strength
Which of the following terms is applied to the study of systems in a constant state of motion?
statics
Which of the following is the most appropriate definition of biomechanics?
the study of the mechanical aspects of biological organisms