BIOS4200_2023_FINALExam_PracticeQuestions_KEY

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Georgia Institute Of Technology *

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4200

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Mechanical Engineering

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Feb 20, 2024

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pdf

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BIOS 4200 Kinesiological Basis of Human Movement Final Exam 4 – KEY Practice Questions Instructor: Young-Hui Chang, Ph.D. For exam, you will be allowed: 1 hour, 1 sheet of notes (8.5” x 11” front/back), a calculator 60 minutes *** EXAM MUST be taken during the assigned final exam block: Dec 8: 11am-2:30pm 150 pts. total

1. A motor unit consists of an alpha motor neuron and all of the extrafusal muscle fibers that it innervates. (circle best answer) a) True b) False 2. Muscle tendon units provide sensory feedback about muscle length and tendon forces. (circle best answer) a) True b) False 3. The first muscle fibers to be recruited during moderate-intensity exercise are _________. (circle best answer) a) fast-twitch fibers b) slow-twitch fibers c) glycolytic fibers d) none of the above 4. Efferent neurons _________. (circle best answer) a) carry ascending sensory information to the brain b) exit the spinal cord via the ventral horn c) exit the spinal cord via the dorsal horn d) carry ascending motor commands to the brain 5. A research subject is asked to stand quietly on a foamy/spongy surface in the dark. You measure the person’s center of pressure and body sway in order to _________. (circle best answer) a) assess the role of her visual system in balance control b) assess the role of her kinesthetic receptors in balance control c) assess the role of her vestibular apparatus in balance control d) assess the role of her cutaneous feedback in balance control

6. The left motor cortex controls the movement of the right hand. (circle best answer) a) True b) False 7. The ability to sign your name with a pen held in your hand or in your teeth is an example of motor equivalence. (circle best answer) a) True b) False 8. The cognitive science approach to the study of motor control focuses on _________. (circle best answer) a) the components of the neuromuscular system b) the movement receptors and the spinal cord c) developing conceptual models to describe and explain collective behavior d) none of the above 9. An information-processing model of motor control indicates that detection and selective attention are both perceptual processes. (circle best answer) a) True b) False 10. ( 2 pts. ) In the first two years of life, _________. (circle best answer) a) control of muscles crossing the axial skeleton is achieved first b) development of limb control precedes the development of head control c) tone in the muscles of the limbs increases and control in the trunk decreases d) development follows cephalocaudal, but not proximodistal principles

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11. Children with Down syndrome usually _________. (circle best answer) a) achieve all major motor milestones at the same time as typically developing children b) achieve limb control at the same time but postural control later than typically developing children c) achieve postural control at the same time but limb control later than typically developing children d) achieve all major motor milestones later than typically developing children 12. The nervous system is most vulnerable to the effects of environmental influences such as malnutrition or drugs _________. (circle best answer) a) from conception to the end of the first year after birth b) from years 2 to 5 postnatally c) during adolescence d) from age 65 onwards 13. Which of the following statements regarding phases of learning is incorrect ? (circle best answer) a) In the verbal-cognitive phase, performance can fluctuate wildly as new strategies are tested. b) In the associative phase, the majority of time is spent attempting to determine the correct movement pattern to use. c) In the autonomous phase, there is an increased capability to undertake the skill while simultaneously completing other tasks. d) In the autonomous phase, much of the control of movement is below the level of conscious awareness.

14 . One of the key factors that distinguishes expert performers from novices is that experts have better visual and kinesthetic acuity as measured using standardized tests. (circle best answer) a) True b) False 15. Which of these statements regarding expert pattern perception is correct ? (circle best answer) a) Experts show an advantage in recalling pattern information but only if the pattern is from their domain of expertise and contains usual structure. b) Experts show an advantage in recalling pattern information for all patterns showing images from their domain of expertise. c) Experts show an advantage in recalling pattern information of all kinds regardless of whether it is from their domain of expertise. d) Pattern perception is not an attribute on which systematic differences between experts and novices are typically found. 16. The specificity notion indicates that the best way to train skills is under conditions that most closely replicate the demands of the situation in which the skill must ultimately be performed. (circle best answer) a) True b) False 17. In implicit learning, conscious attention is directed to movement control in order to consolidate learning. (circle best answer) a) True b) False 18. Improvements in performance can occur from the end of one practice session to the start of the next if the intervening time includes a period of non-REM sleep. This type of improvement is known as practice-dependent learning. (circle best answer) a) True b) False