Adaptation and Fatigue - Lecture 3

Question 1

numerous factors which influence tension in normal skeletal muscle

Answer 1

morphological

biomechanical

neurological

metabolic

biochemical

Question 2

factor that influences tension is skeletal muscle contribute to

Answer 2

magnitude

duration

speed of force production

how susceptible a muscle is to fatigue

Question 3

fatigue

Answer 3

complex and greatly affects muscle performance

Question 4

types of fatigue

Answer 4

muscle fatigue

cardiopulmonary fatigue

threshold for fatigue

factors that influence fatigue

Question 5

muscle fatigue

Answer 5

diminished response of a muscle to repeated stimulus

Question 6

when does muscle fatigue become evident

Answer 6

decrease in motor unit potentials

Question 7

when does muscle fatigue occur

Answer 7

muscle contracts statically or dynamically against an imposed load

Question 8

muscle fatigue is a

Answer 8

normal response

reversible

Question 9

what affects how resistance muscles fatigue

Answer 9

fiber type distribution

Question 10

factors that affect muscle performance

Answer 10

fiber type

diameter and size

muscle architecture

length-tension relationship

Question 11

length-tension relationship

Answer 11

muscle produces greatest tension when it is at the physiological resting length at the time of contraction

Question 12

S&S of fatigue

Answer 12

uncomfortable sensation in a mm

unintentional decreased speed of movement

movements become jerky and are not as smooth

inability to complete the movement pattern through full ROM

subs become obvious

Question 13

uncomfortable sensation in a mm

Answer 13

pain and cramping

Question 14

cardio-pulm fatigue

Answer 14

diminished response of the entire individual (the entire body) as a result of prolonged physical activity

Question 15

what is cardio-pulm fatigue related to

Answer 15

body’s ability to use O2 efficiently

Question 16

threshold for fatigue

Answer 16

level at which the exercise cannot be sustained indefinitely

Question 17

how can the threshold of fatigue be measured

Answer 17

length of time a contraction is maintained

number of reps that can initially be maintained

Question 18

factors that influence fatigue

Answer 18

environmental

pts overall health status

meds

Question 19

recovery from fatigue

Answer 19

time

replenish

Question 20

adequate time must be given for

Answer 20

recovery from fatigue

must be built into every PT session

Question 21

recovery to 90-95% of pre-exercise force producing capacity occurs w/in

Answer 21

first 3-4 min

Question 22

energy stores and O2 are replenished

Answer 22

quickly

Question 23

lactic acid removal

Answer 23

w/in 1 hr

Question 24

glycogen replenishes over

Answer 24

several days