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39 Cards in this Set

  • Front
  • Back
physical activity
any body movement carried out bye the skeletal muscles and requiring energy
exercise
a subset of physical activity--planned structured, repetitive movement of the body designed specifically to improve or maintain physical fitness
health related fitness
contributes to your capacity to enjoy life, helps your body withstand physical and psychological challenges, and protects you from chronic disease
cardiorespiratory endurance
the ability to perform prolonged, large-muscle, dynamic exercise at moderate to high levels of intensity
muscular strength
amount of force a muscle can produce with a single maximum effort
metabolism
the sum of all the vital processes by which food energy and nutrients are made available to and use by the body
muscular endurance
the ability to resist fatigue and sustain a given level of muscle tension
flexibility
the ability to move the joints through their full range of motion
Body composition
the proportion of fat and fat-free mass
frequency
how often
intensity
how hard
time
how long
type
mode of activity
how big is the heart?
the size of your fist
pulmonary circulation
part of the circulatory system that moves blood between the heart and the lungs; controlled by the right side of the heart
systemic circulation
the part of the circulatory system that moves blood between the heart and the rest of the body; controlled by the left side of the heart
atria
the two upper chambers of the heart
venae cave
the large veins through which blood is returned to the right atrium of the heart
ventricles
the two lower chambers of th heart from which blood flows through arteries to the lungs and other parts of the body
aorta
the large artery that receives blood from the left ventricle and distributes it to the body
systole
hearts contraction
diastole
relaxation of the heart
blood pressure
the force exerted by blood on the walls of the blood vessels
veins
carry blood to the heart
arteries
carry blood away from the heart
cardiac output
the amount of blood pumped by the heart each minute
glucose
a sugar that circulates in the blood and can be used by cells to fuel ATP production
glycogen
a complex carb stored in the liver and skeletal muscles; the major source of fuel during most intense exercises
ATP
adenosine triphosphate--
energy source for cellular processes
anaerobic
w/o oxygen
lactic acid
a metabolic acid coming from glucose and glycogen
mitochondria
intracellular structures containing enzymes used in the chemical reactions that convert the energy in food to a form the body can use
free radicals
highly reactive compounds that can damage cells by taking electrons from key cellular components such as dna or the cell membrane.
lipoproteins
substances in the blood that transport fat
endorphins
substances resembling morphine that are secreted by the brain and that decrease pain, suppress fatigue and produce euphoria
neurotransmitters
brain chemicals that trasmit nerve impluses
heart rate reserve
the difference between max heart rate and resting heart rate
RPE
ratings of perceived exertion
synovial fluid
fluid produced within many joints that provides lubrication and nutrients for the joints