Certified Personal Trainer - Lecture 2 Key Terms UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Stability The ease with which balance is maintained
Torque the effect produced by a force causing rotation; the product of force and length
of the force arm
Force Arm perpendicular distance from the axis of rotation to the direction of the application
of the force-causing movement
Resistance Arm perpendicular distance from the axis of rotation to the direction of the application
of the force resisting movement
Rotational Inertia reluctance to rotate; proportional to the mass and distribution of the mass around
the axis
Angular Momentum the quantity of rotation. Angular momentum is the product of rotational inertia
and angular velocity.
Creatine Phosphate (Phosphocreatine) a high-energy phopshate compound that represents the primary immediate
anaerobic source of ATP at the onset of exercise. PC is important in all-out
activities lasting a few seconds.
Glycolysis the metabolic pathway producing ATP from the anaerobic breakdown of glucose.
This short-term source of ATP is important in all-out activities lasting less than 2
minutes.
Aerobic when oxygen is used to help supply energy (ATP) to a person who is working.
Anaerobic energy (ATP) is supplied without oxygen. Creatine phosphate and glycolysis
supply ATP without using oxygen.
Glucose a simple sugar that is a vital energy source in the human body.
Glycogen the storage form of carbohydrate in the human body.
Mitochondria cellular organelles responsible for generating energy (ATP) through aerobic
metabolism.
Myofibril component inside muscle fibers that is composed of a long string of sarcomeres.
QUESTIONS AND CORRECT ANSWERS
Stability The ease with which balance is maintained
Torque the effect produced by a force causing rotation; the product of force and length
of the force arm
Force Arm perpendicular distance from the axis of rotation to the direction of the application
of the force-causing movement
Resistance Arm perpendicular distance from the axis of rotation to the direction of the application
of the force resisting movement
Rotational Inertia reluctance to rotate; proportional to the mass and distribution of the mass around
the axis
Angular Momentum the quantity of rotation. Angular momentum is the product of rotational inertia
and angular velocity.
Creatine Phosphate (Phosphocreatine) a high-energy phopshate compound that represents the primary immediate
anaerobic source of ATP at the onset of exercise. PC is important in all-out
activities lasting a few seconds.
Glycolysis the metabolic pathway producing ATP from the anaerobic breakdown of glucose.
This short-term source of ATP is important in all-out activities lasting less than 2
minutes.
Aerobic when oxygen is used to help supply energy (ATP) to a person who is working.
Anaerobic energy (ATP) is supplied without oxygen. Creatine phosphate and glycolysis
supply ATP without using oxygen.
Glucose a simple sugar that is a vital energy source in the human body.
Glycogen the storage form of carbohydrate in the human body.
Mitochondria cellular organelles responsible for generating energy (ATP) through aerobic
metabolism.
Myofibril component inside muscle fibers that is composed of a long string of sarcomeres.
