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