CSCS Chapter 4
19 Questions
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Biomechanics of Resistance Exercise
Questions and Answers
- 1.Which part of the skeletal system consists of the skull, vertebral column, ribs, and sternum?
- A.
Axial
- B.
Appendicular
- C.
Peripheral
- D.
Central
- 2.Which type of joint is not matched with the correct example?
- A.
Fibrous--sutures of skull
- B.
Cartilaginous-- knee
- C.
Synovial--elbow
- 3.When throwing a ball, the agonist muscle is the ______________, the antagoinist muscle is the ____________, and the synergist muscle is ___________
- 4.A ___________ class lever is a lever where the muscle force acts on the opposite side of the fulcrum from the resistive force; example: the forearm in elbow extension.
- 5.True or False: For slow movements, such as power-lifting, tendon insertion farther from the joint than normal can be advantageous.
- A.
True
- B.
False
- 6.Calculate the amout of work involved in lifting a 100 kg barbell 2m
- 7.______________ attributes to much of the increase in strength in the first few weeks of resistance training "brain learning"
- A.
Neural control
- B.
Loss of fat
- C.
Increase in endorphins
- D.
Bone growth
- 8.True or False: All else equal, the force a muscle exerts is related to the cross sectional area of the muscle rather than the volume.
- A.
True
- B.
False
- 9.Which type of muscle is not matched with the correct muscle example.
- A.
Bipennate--rectus femoris
- B.
Unipennate--tibialis anterior
- C.
Radiate--biceps brachii
- D.
Longitudinal--rectus abdominis
- E.
Multimennate--Deltoid
- 10.True or False: When a muscle is fully contracted, it can generate the greatest force.
- A.
True
- B.
False
- 11.True or False: When a weight is horizontally closer to a joint, it exerts less resistive torque than compared with a weight that is horizontally farther away from the joint.
- A.
True
- B.
False
- 12.Which is not an advantage of a weight stack machine?
- A.
Very Safe
- B.
Design flexibility--able to do things that are hard to do with free weights
- C.
Easy to use
- D.
Simulation of real life activities
- 13.__________ resistive force is encountered when an athlete attempts to move an object while it is pressed against another object
- A.
Fluid
- B.
Elastic
- C.
Friction
- D.
Inertia
- 14.True or False: The lack of eccentric muscle action with fluid resistance machines means that such exercises probably does not provide optimonl training for sport movements that involve eccentric muscle action such as running, jumping, or throwing.
- A.
True
- B.
False
- 15.Negative work and power occurs during _____________ muscle activity
- A.
Concentric
- B.
Eccentric
- C.
Isometric
- 16.True or False: Of the various components of the knee, the patella and surrounding tissue are the Least susceptible to the kinds of forces encountered in resistance training
- 17.Hip flexion and extension occur in which plane(s)
- A.
Frontal
- B.
Transverse
- C.
Oblique
- D.
Sagittal
- 18.True or False: In order to create intra-abdominal pressure athletes must use the valsalva maneuver
- A.
True
- B.
False
- 19.The best back lifting posture to avoid injury is
- A.
Flat-back
- B.
Slightly arched
- C.
Rounded
- D.
Kyphotic
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