Basic Knowledge
There are this many muscles in the human body
700
Muscle is used to store __________ .
Energy
The decrease in an angle of a joint
Flexion
This energy system lasts only for about 10s and is used in high intensity exercise
Phosphagen System
This muscle fiber type is used in moderately intense exercise. It is considered an intermediate fiber
IIA
This is the most calorically dense macronutrient
Muscle is used to maintain __________ .
Posture
The increase of an angle of a joint
Extension
This energy system can last up to about 90s and is used in relatively high intensity exercise
Glycolytic System
This muscle fiber is considered a "fast twitch" fiber and is used in high intensity exercise. It is able to generate high amounts of force but is very prone to fatigue.
IIB / IIX
This is the VO2 max percentage that the body begins to utilize carbs more than fat during exercise.
65%
Muscle is used to stabilize _______________ .
Joints
Bringing two limbs to the midline of your body
Adduction
This energy producing system is used in relatively low intensity exercise
Oxidative System
This muscle fiber does not produce much force but is very fatigue resistant.
I
This macronutrient is used by the body in oxidative respiration for low intensity activity
Fat
Muscle is used to generate ___________ .
Heat
Moving two limbs away from the midline of your body
Abduction
The Glycolytic System converts lactate into ATP in a process called the Cori Cycle by transporting lactate in the bloodstream from skeletal muscle to which internal organ?
Liver
Suppose you go on an easy 4mi run. When you're done, you do 4 x 100m at max effort. What muscle fiber type are you using on the easy 4mi run?
Type I
This macronutrient is used by the body in oxidative respiration for high intensity activity
Carbohydrates
Skeletal muscle contracts to pull bones and generate force, but not all contractions produce ___________ .
Movement
Dynamic contractions produce movement whereas ____________ contractions do not
Static
How many molecules of ATP are produced from 1 molecule of glucose?
32
Suppose you go on an easy 4mi run. When you're done, you do 4 x 100m at max effort. What muscle fiber type are you using on the 4 x 100m?
Type IIB/IIX