Slapping of the foot during heel strike and increased knee and hip flexion during swing are characteristic of
A. Weakness in the gluteusmedius and minimus.
B. Weakness in the quadricepsfemoris.
C. Weakness in theplantarflexors.
D. Weakness in thedorsiflexors.
Angular motion occurs when
A. A force is applied off-center to a freely- moveable object.
B. A freely-movable object moves in a straight line when a force is applied on-center.
C. An object is free to move only in a linear path.
D. All of the above.
Which type of musculoskeletal lever is most common?
A. First-class.
B. Second-class.
C. Third-class.
D. Fourth-class.
Pain caused by low back muscle guarding and spasm in the absence of signs of disk herniation is often treated with muscle stretching. Which of the following is (are) helpful stretching activities for the low back?
A. Knee to chest.
B. Double-knee to chest.
C. Lower trunk rotation.
D. All of the above.
Which of the following will increase stability?
A. Lowering the center of gravity.
B. Raising the center of gravity.
C. Decreasing the base of support.
D. Moving the center of gravity farther from the edge bf the base of support.
Which of the following is NOT a characteristic of the "power position" used for lifting with proper body mechanics?
A. Shoulders slouched.
B. Back straight.
C. Body bent forward from the hips.
D. Knees slightly bent.
The intervertebral disks have which of the following characteristics?
A. Calcified outer ring.
B. Gelatinous inner nucleus portion.
C. Gray matter surrounding the neural cell bodies.
D. All of the above.
Who first described that a body immersed in fluid is buoyed up with a force equal to the weight of the displaced fluid?
A. Einstein.
B. Freud.
C. Whitehead.
D. Archimedes.
Which of the following bones articulates proxi- mally with the sternal manubrium and distally with the scapula and is helpful to palpate in electrode placement?
A. Scapula.
B. Sternum.
C. Clavicle.
D. Twelfth rib.
Running is a locomotor activity similar to walking but with some differences. In comparison to walking, running requires greater
A. Balance.
B. Muscle strength.
C. Range of motion.
D. All of the above
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