Definitions for Exam 1b Flashcards
Vascular spasm
temporary constriciton of blood vessels
Platelet plug
seal up small breaks in blood vessels
Blood clotting
coagulation
Arteries
carry blood away from heart
Veins
carry blood to the heart
Strength
max force generated during single contraction
Power
force generation, distance traveled + time spend (quickness)
Related to speed.
Endurance
ability of muscle to sustain or perform repetitive contractions for extended period of time
SAID
Specific Adaptations to Imposed Demands.
“if I want it, go do it”
Overload
greater than normal stress required for training adaptations.
“no pain no gain”
Reversibility
all adaptations are temporarily unless training continues.
“if you don’t use it, you’ll lose it”
DOMS
Delayed-onset muscle soreness. Happens 1-2 days later. Due to break down of myosin and actin.
Moment arm
perpinducular distance between muscles line of pull and axis of joint
Resistance arm
perpindicular distance or length between line of resistance and axis
Force arm
perpindicular distance or length between line of force and the axis
Mass
amount of matter in an object, not affected by gravity
Weight
how gravity affects mass, affected by gravity
Statics
study of nonmoving systems
Dynamics
study of moving systems
Acceleration
change in velocity of object over time
Potential Energy
stored energy or energy at rest
Kinetic Energy
energy in motion
Work
relates to distance moved
Torque
Ability of force to produce rotation about an axis