chapter 7 quiz

Which subsystem is responsible for providing both frontal plane mobility and stabilization of the lumbo-pelvic-hip complex? Lateral subsystem Deep longitudinal subsystem Anterior oblique subsystem Posterior oblique subsystem

lateral subsystem

What scientific term is used to describe the concept whereby a loaded eccentric contraction prepares the muscles for a rapid concentric contraction? Stretch-shortening cycle Series elastic component Reciprocal inhibition Altered reciprocal inhibition

stretch-shortening cycle

What is the anatomical term that describes something positioned above an identified reference point? Anterior Inferior Posterior Superior

superior

How is an isokinetic muscle contraction best described? A contraction that occurs when muscle tension is created without a change in length and no visible movement of the joint A contraction that occurs when muscle tension is developed and movement occurs through a given range of motion at a speed that may vary A contraction that occurs when a muscle is exerting force greater than the resistive force, resulting in a shortening of the muscle A contraction that occurs when the speed of movement is fixed and the resistance varies with the force exerted

a contraction that occurs when the speed of movement is fixed and the resistance varies with the force exerted

What term is used to describe muscle tension that is created without a change in muscle length and no visible movement of the joint? Eccentric Concentric Isometric Isokinetic

isometric

Overactive hip flexors may lead to which of the following postural compensations? Anterior tilting of the pelvis and a decreased low-back arch Posterior tilting of the pelvis and an increased low-back arch Anterior tilting of the pelvis and an increased low-back arch Posterior tilting of the pelvis and a decreased low-back arch

anterior tilting of the pelvis and increased low-back arch

Movements that take place within a joint and are not visible to the human eye may be classified in what way? Posterior Anterior Osteokinematic Arthrokinematic

arthrokinematic

Which of the following statements would be accurate with regard to muscle force and velocity during an eccentric muscle action? As the contraction velocity decreases, the force remains constant. As the contraction velocity increases, the ability to develop force decreases. As the contraction velocity decreases, the ability to develop force increases. As the contraction velocity increases the ability to develop force also increases.

as the contraction velocity increases, the ability to develop force alsos increases

What type of muscle action would expend the highest amount of energy at a fixed resistance level over a comparable duration? Isometric Eccentric Concentric Isotonic

concentric

What is the anatomical term that describes something positioned on the opposite side of the body? Posterior Lateral Contralateral Ipsilateral

contralateral

During a squat, the lowering phase would be described as what type of muscle action? Isokinetic Isometric Eccentric Concentric

eccentric

Which muscle functions as part of the global muscular system? Erector spinae Internal oblique Multifidus Transversus abdominis

erector spinae

What type of lever could be described as having a fulcrum in the middle like a seesaw? Third class Second class First class Fourth class

first class

During a squat, which muscle group isometrically contracts to prevent unnecessary thigh movement in the frontal plane? Hip extensors Hip flexors Hip abductors Hip internal rotators

hip abductors

Which of the following benefits may occur as a result of exercises that comprise only eccentric muscle actions that are appropriately loaded? Increased catabolic hormone stimulation Decreased anabolic hormone stimulation Decreased catabolic hormone stimulation Increased anabolic hormone stimulation

increased anabolic hormone stimulation

Which type of exercise accommodates effort whereby the harder the individual pushes or pulls, the more resistance they feel, despite the movement speed remaining constant? Isometric Eccentric Concentric Isokinetic

isokinetic

What term is used to describe muscle tension that is created without a change in muscle length and no visible movement of the joint? Concentric Isokinetic Isometric Eccentric

isometric

n order to optimally load muscle during the eccentric phase, the fitness professional should recommend which of the following? Lower the weight more slowly to increase time under tension Reduce the resistance so it is less than it was in the concentric phase, and lower the weight more slowly to increase time under tension Reduce the resistance so it is less than it was in the concentric phase, and lower the weight faster to reduce time under tension Lower the weight faster to reduce time under tension

lower the weight more slowly to increase time under tension

What anatomical term is used to describe something that is relatively closer to the midline of the body? Anterior Medial Posterior Lateral

medial

Movement represents the integrated functioning of which three main body systems? Nervous, ligamentous, and vascular Muscular, ligamentous, and skeletal Muscular, nervous, and skeletal Nervous, skeletal, and vascular

muscular, nervous, skeletal

Which of the following solutions would allow an individual to achieve a greater depth during the lowering phase of the squat if ankle stiffness is the cause? Stretch the ankle dorsiflexor musculature Place a small board under the toes Place a small board under the heels Stretch the ankle eversion musculature

place a small board under the heels

What type of input may provide a runner with a cue to contract the evertor muscles to avoid an inversion injury? External feedback Stretch-shortening cycle Force velocity Proprioception

proproception

Which of the following muscle groups work both eccentrically and concentrically in the sagittal plane during a squat? Quadriceps Biceps brachii Adductor longus Gluteus medius

quadriceps

Improved performance during a plyometric jump is dependent upon which of the following? Rapid amortization phase Release of stored energy during concentric phase Prolonged amortization phase Absent stretch reflex

rapid amortization phase

What is the scientific term that describes the nervous system's role in the contract/relax relationship between agonists and antagonists? Stretch-shortening cycle Length-tension relationship Reciprocal inhibition Muscle imbalance

reciprocal inhibition

What term is used to describe the concept of how the functioning of one body segment can impact other areas of the body? Osteokinematics Regional interdependence Kinesiology Biomechanics

regional interdependence

What movement term is used to describe the concept of adducting the shoulder blades so that they become closer together? Scapular depression Scapular elevation Scapular retraction Scapular protraction

scapular retraction

The upper trapezius works with what muscle as a force couple to create upward rotation of the scapula? Deltoid Rotator cuff muscles Rhomboids Serratus anterior

serratus anterior

What is the most accurate description of motor control? The integration of motor control processes through practice The ability to initiate and correct purposeful controlled movements The cumulative changes in motor behavior over time, throughout the life span The motor response to internal and external environmental stimuli

the ability to initiate and correct purposeful controlled movements

How should an eccentric muscle action be described? The development of muscle tension during shortening of the contractile tissue The development of muscle tension during lengthening of the contractile tissue The development of muscle tension at a fixed speed during both shortening and lengthening of the contractile tissue The development of muscle tension without shortening or lengthening of the contractile tissue

the development of muscle tension during lengthening of the contractile tissue

How should the amortization phase of the stretch-shortening cycle be described? The transition from eccentric loading to concentric unloading The transition between the isometric and eccentric phases The transition from concentric loading to eccentric unloading The transition between the concentric and isometric phases

the transition from eccentric loading to concentric unloading

In what plane of movement do shoulder horizontal adduction and abduction occur? Frontal Sagittal Transverse Dorsal

transverse