four major components of physical fitness
muscular strength endurance cardio respiratory endurance flexibility and body composition
volume of air moved with each breath and depth of ventilation
volume of blood pumped per heart beat
metabolic pathway that produces atp in presents of oxygen
metabolic pathway that produces atp in absence of oxygen
first ventilatory threshold
vt1 max 1-2 hours
second ventilatory threshold
vt2 max 30-60 min
adenosine trisphosphate ATP
chemical structure that when broken down releases energy for cellular work
the process that results in preparing the body for exercise (fight or flight mechanism)
relative amount and availability of an atmospheric gas at a givin altitude
metobolic by-product that causes changes in muscle ph and eventual muscle fatigue
process of breaking down fatty acids for production of ATP or adenosine trisphosphate
site for aerobic production of ATP or adenosine trisphosphate
maximal aerobic capacity
greatest amount of oxygen an individual can take in transport and use for physical work (VO2)
category of hormones that stimulate the body to adjust to the increased metabolic demands of exercise
high energy compound found within muscle cells used to supply energy for intence short duration activities
a hormone that reduces urinary excretion of water
hormone that promotes protein and triglyceride breakdown during prolonged exercise
facilitates protein synthesis in the body
hormone that increases cardiac output and causes gylcogenolysis during exercise - also called adrenaline
hormone that plays major role in bone formation and maintenance
hormone that causes the release of free fatty acids into the bloodstream
hormone that limits sodium excretion in the urine to maintain electrolyte balance during exercise
hormone released from pancreas that allows cells to absorb the glucose
heart rate and stroke volume (Q=HR X SV)
respiratory exchange ratio RER
carbon dioxide produced & oxygen consumed
essential fat % for men
essential fat % for women
maximal force that a muscle or muscle group can exert during a since contraction
ability of a muscle or muscle group to exert force against a resistance over a sustained period of time.
Three basic process of the cardiorespiratory system that must be functioning properly to provide blood and nutrients to the tissues:
Getting oxygen; delivering oxygen; extracting oxygen.
In the study of body mass, what consists of muscles, bones, nervous tissue, skin, blood and organs?
lean body bass
cardiac output is the product of:
heart rate and stroke volume
On average how much energy is burned for every liter of oxygen consume?
During exercise what decreases or stays the same due to vasodilation of blood vessels?
distolic blood pressure
nervous-system structures that conduct impulses from the central nervous system to the periphery.
A condition associated with low body weight and excessively high levels of chronic exercise training that can increase one's risk for osteoporosis.