ACE Personal Trainer Study Cards Ch3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are motive and resistive forces? 1 | Motive forces cause an increase in speed or a change in direction.
Resistive forces resist the motion of another external force.
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| What anatomical and physiological factors influence a muscle's ability to create force? 2 | The number and size of muscle fibers, fiber type and arrangement, and neurological training and recruitment
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| Where is your center of gravity? 3 | It is generally located at the level of the second sacral vertebra, but it changes from person to person, depending on their build
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| What are the primary functions of the erector spinae? 4 | Trunk extension, hyperextension and lateral flexion.
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| What are the primary functions of the sartorius? 5 | Hip flexion, abduction and lateral rotation. Knee flexion and medical rotation.
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| What are the primary functions of the rectus abdominis? 6 | Flexion and lateral flexion of the spine.
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| What is the primary function of the adbuctors? 7 | Stabilizing the hips and pelvis.
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| What are the primary and secondary knee flexors? 8 | Primary: Hamstrings
Secondary: Gastrocnemius, sartorius, gracilis and popliteus.
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| How are scapular muscles classified? 9 | They are classified into two groups according to their location: posterior shoulder girdle and anterior shoulder girdle.
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| What muscles are used in a push up? 10 | Pectoralis major, anterior deltoid, coracobrachialis, subscapularis and the abdominal muscles to stabilize the torso.
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| Which of the following is the agonist muscle in the leg extension? A. Biceps femoris B. Rectus femoris C. Semitendonosis D. Semimembranosis 11 | B. Rectus femoris
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| An individual comes to you with some weak muscle development in their abdominal and hip extensors. Of the choices listed, what sort of postural problems might this individual be experiencing? A. Sway back B. Kyphosis C. Flat back D. Lordosis 12 | D. Lordosis
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| What is an agonist muscle? 13 | Agonist muscle: a muscle that is directly engaged in contraction and opposes the action of an antagonist muscle.
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| What are stabilizer muscles? 14 | Muscles that stabilize one joint so a desired movement can be performed in another joint.
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| What is kinesiology? 15 | The study of the principles of mechanics and anatomy in relation to human movement.
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| Where are the six external hip rotators located? 16 | Beneath the gluteus maximus.
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| What are the secondary knee flexors? 17 | Gastrocnemius, sartorius, gracilis and popliteus.
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| Name the principles of biomechanics for overload. 18 | First, the body position can change from a gravity to anti-gravity position.
Second, use various contractions.
Third, change the lever arm.
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| If you lift the medial border of your foot, what is this known as? A. Inversion B. Eversion C. Elevation D. Depression 19 | A. Inversion
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| What is the longest muscle in the body? A. Sartorius B. Semitendonosis C. Semimembranosus D. Rectus femoris 20 | A.Sartorius
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