Chapter 6: Assessing Muscular Fitnesss Flashcards
what do adequate levels of muscukar fitness less the chance of developping>
low back probs
osteroportic fracures
musculoskeletal
what are the 3 components of ASCM (2018) current def of muscular fitness
muscular endurance
muscular strength
muscular power
true or false: muscular power is not included along with muscular strengh and endurance
false
what is the general definition of muscular endurance
is the ability of a muscle group to exert submaximal force repeatedly, or sustain a static contraction without fatigue.
define “static muscular endurance”
is the ability of a muscle group to maintain a specific % of the maximum voluntary contraction (MVC) for a prolonged period of time.
define “dynamic” muscualr endurance
is the ability of a muscle group to execute repeated contractions over a period of time sufficient to cause muscular fatigue.
what are the 2 defenitions of the muscular strength
is the maximal force generated in a single contraction at a specified velocity.
is the ability of a muscle group to develop maximal contractile force against a resistance in a single contraction.
true or false: is the peak force or torque developed during a maximal voluntary contraction (MVC).
is the definiton for muscular endurance
false, for musc strength
true or false: muscular power is a skill relatted component of fitness
true
what are the definition of muscular power
is the muscle’s ability to exert force per unit of time.
is the ability to exert force rapidly.
is the rate at which mechanical work is performed.
is the maximal amount of force one can exert in the least amount of time.
what are the 2 types of muscle action
isometric/static action
dynamic muscle action
what is the defintion of isometric muscle strenfgth
same muscle length.
no visible movement of the joint.
what is the definition of dynamic muscle action
muscle length changes.
visible joint movement.
what are the 3 subtypes of dynamic muscle action
auxotonic, isokinetic, or variable resistance.
isotonic is the corect term used to decribe msucle action when lifting free wirghts
false, AUXOTONIC should be the correct tern
define isotonic muscle action
the tension produced by a muscle group during free weight exercise fluctuates greatly even though the resistance is constant throughout the range of motion (ROM).
what is the defintion of auxotonic muscle action
is defined as variable muscle tensions caused by changing velocities & joint angles.
what is the CORRECT TERM for describing the muscle action when lifting free weights or performing resistance exercise with a constant resistance exercise machine.
AUXOTONIC MUSCLE ACTION
true or false: auxtonic can only be concentric>
false, concentric or eccentric
what is the defintnion of concentric muscle action and give an example
resistance < force produced by muscle group.
muscle shortens during tension development.
e.g., weight is lifted.
what is the defintion of eccentric muscle action
resistance > force produced by muscle group.
muscle lengthens during tension development.
resist gravity.
braking force to decelerate rapidly moving body segments.
e.g., weight is lowered.
what has a greater risk of injury, concentric or eccentric
eccentric
in concentric muscle action, restistance is BLANK than force
less than force
in eccentric muscle action, resistance is BLANK than force
greather than force