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國立台灣大學物理治療學系九十一學年度/ 生物力學第二次小考試卷
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HC\BioMech\qz1BM03
1
Mar 21, 2003
國立台灣大學物理治療學系九十一學年度/ 生物力學第二次小考試卷
1. Concerning with the inverted pendulum model of stance, which of the following
statements is NOT TRUE?
a. Only ankle moment is considered in this model.
b. It states that the body sways like a pendulum pivoting around the hip, knee, and ankle
joints during quiet stance.
c. The center of pressure shifts further ahead or behind the center of gravity in order to
prevent forward or backward falling.
d. The difference between the center of pressure and the center of gravity is linear to the
angular acceleration of the inverted pendulum.
2. During quiet stance, the body sways back and forth in the anteroposterior position.
When the body leans backward, the COP pressure will shift _____ the center of gravity
in order to prevent forward falling.
a. ahead
b. the same as
c. behind
d. (unable to know)
3. In question 2, which direction of the angular acceleration would the body experience?
a. forward and upward
b. forward and downward
c. backward and upward
d. backward and dowanward
4. In question 2, which muscle would be activated in response to this action?
a. tibialis anterior
c. quadriceps
b. tibialis posterior
d. gastrocnemius
5. During the cocking phase of the throwing, the shoulder should be winded up to _____.
a. adduction and full external rotation b. abduction and full external rotation
c. adduction and full internal rotation
d. abduction and full internal rotation
6. Same as question #5, which of the following conditions is NOT the purpose of this
motion?
a. to stretch the shoulder rotators (external/internal rotators depending on your answer at
Question #5) to the maximum length
b. to decrease the moment of inertia by bending the elbow joint
c. to increase momentum by increase momentary body mass
d. to prepare to accelerate the arm by bring the center of the mass of the arm close to the
shoulder joint
HC\BioMech\qz1BM03
2
Mar 21, 2003
國立台灣大學物理治療學系九十一學年度/ 生物力學第二次小考試卷
7. Same condition as Question #5, which of the following muscles would be prone to be
insulted (易於受傷) from this motion?
a. subscapularis
b. supraspinatus
c. deltoid anterior
d. deltoid posterior
8. The main factor to distinguish walking and running is _____.
a. the speed
b. the pattern of heel strike
c. the angle of hip flexion
d. the presence of double support phase
9. The action of ankle dorsiflexor (tibialis anterior) during swing phase is to _____.
a. counterbalance the contraction of the plantarflexor by co-contraction
b. lower down the foot at a controlled speed by eccentric contraction
c. slap the foot against the ground by concentric contraction
d. provide sufficient clearance between the foot and the ground
10. The action of hamstrings muscle during late swing phase of running is to _____.
a. counterbalance the contraction of the quadriceps by co-contraction
b. extend the knee at a controlled speed by eccentric contraction
c. flex the knee to increase momentum of the body by concentric contraction
d. provide sufficient clearance between the foot and the ground
HC\BioMech\qz1BM03
3
Mar 21, 2003