KIN 3514 Review Questions
what is the horizontal acceleration of a projectile?
0 m/s^2
what is the concept of the kinetic chain?
described human movement as a link system
the ___ plane divides the body into anterior and posterior portions.
frontal
abduction of the arm at the shoulder is movement in ___ plane around the ____ axis
frontal; anteroposterior
abduction of the leg at the hip (side leg raise) is movement in the ___ plane around the ___ axis
frontal; anteroposterior
which of the following most closely describes endomorph?
high body fat
when a person pushes a car, four forces appear:
Fg, Fn, Ff and Fa
which of the following explains how much a material will strain with an applied tensile force?
Young's modulus
which of the following is the best answer for finding the weight of an individual segment?
static measure
which can withstand greater tensile stress, tendon or ligament?
tendon
which statement is correct? a. the head is superior to the chest b. the ribs are superior to the chin c. the foot is proximal d. the toe is posterior to the calcaneus
the head is superior to the chest
fitness instructor Kim is walking toward you. you are looking at her from a ___ view?
anterior
what term is given to considerations such as the size, shape and weight of body segments?
anthropometric
when the load is applied slowly across a joint, this may result in a ____, whereas the same load applied quickly across the joint will ___
bone fracture; rupture the ligament
which statement is false about bones? a. trabecular bone is more elastic than cortical b. bone adapts differently depending on loading rate and duration (viscoelastic) c. bones are strongest in shear and weakest in compression d. cortical bone is more resistant to torsion and bending
bones are strongest in shear and weakest in compression
which statement is true about the lower extremity joints? a. a large Q angle always causes injury b. bones are strongest where the trabecular fibers cross at a 90 degree angle c. the knee is the only hinge joint among the three lower extremity joints d. the hip joint is the largest joint in the human body
bones are strongest where the trabecular fibers cross at a 90 degree angle
muscle shortens under tension
concentric
which statement is false about bone remodeling? a. osteoblast is the primary cell responsible for deposition b. osteoclasts are the primary cells responsible for resorption c. bone modeling is described by Wolff's law d. deposition is a response to decreased stress
deposition is a response to decreased stress
the ankle is ____ to the knee
distal
muscle lengthens under tension
eccentric
which is stronger, a maximal eccentric contraction or a maximal concentric contraction?
maximal eccentric contraction
the ___ muscle often used for fast or extensive movements
parallel
tendon is stronger than ligament because:
parallel arrangement of collagen fibers
according to the force-length relationship, the maximum isometric force occurs at the optimal length of the ___ region
plateau
the plane that divides the body into right and left sides is the:
sagittal plane
what is the plane of motion for most of the joint actions that occur during sprint running? what is the corresponding axis of motion for these joint actions?
sagittal plane and transverse axis
flexion of the arm at the shoulder is movement in the ____ plane around the ____ axis
sagittal; transverse
flexion of the leg at the hip is movement in the ___ plane around the ____ axis
sagittal; transverse
the basic contractile unit of a muscle is ____
sarcomere
skeletal muscles contract by ___
sliding of actin filaments upon myosin filaments
which is stronger, a fast concentric contraction or a slow concentric contraction?
slower concentric contraction
___ fluid lubricates a diarthrodial joint, provides nourishment to the articular cartilage and provides some shock absorption
synovial
the plane that divides the body into superior and inferior portions is the:
transverse plane
rotation of the torso at the lumbar spine is movement in the ___ plane around the ___ axis
transverse; longitudinal
with the arms extended at the side at shoulder height and brining them forward and out, is movement in the ___ plane around the ___ axis
transverse; longitudinal
true or false: a powerful, explosive style of gymnast would be categorized as mesomorph
true
true or false: prior to full skeletal maturity, the long bone is separated from the epiphyseal cartilage
true
no change in muscle length under tension
isometric
the ratio of the change in length to the original length is a measure of:
linear strain
which statement is false about muscle contraction types? a. during eccentric muscle contraction, the sarcomere lengthens b. during concentric muscle contraction, the sarcomere shortens c. lifting objects or bicep curls are a common type of concentric contraction d. an isokinetic contraction is a muscle contraction without motion
an isokinetic contraction is a muscle contraction without motion
which statement is false about the anthropometric measurements? a. static measurements are measurements of the body while the body is in a fixed position b. Newtonian anthropometry is related to the strength measures c. extreme ectomorphs generally have broad shoulders, muscular body and low body fat
extreme ectomorphs generally have broad shoulders, muscular body and low body fat
true or false: a book at rest on a table present gravitational force and frictional force
false
true or false: curvilinear motion is called angular motion
false
true or false: displacement can be greater than distance
false
true or false: one of the reasons that eccentric contractions generate more force than concentric is that the rate of the cross bridge detachments is increased
false
true or false: the free body diagram is a special type of force diagram that represents the partial force acting upon an object
false
what sport would be an example of having combinations of mesomorphic and endomorphic?
football
the hip is ___ to the shoulder.
inferior
