Lesson 3 Flashcards
Muscular Strength
how much weight a person can lift at one time
Muscular Endurance
contracting muscles against force for an extended amount of time
Cardiovascular Endurance
how well your lungs and heart can supply O2 needed to exercise at medium to high levels
Insulin
Reduces blood glucose levels
Suppresses during exercise
Promotes uptake of glucose, fats, amino acids into cells for storage
Glucagon
Stimulates immediate release of glucose from liver when blood glucose levels low
contributes to blood glucose control during later stages of exercise
VT1
1st change in breathing and occurs at approx. the 1st time lactate begins to accumulate in the blood
Autonomic Nervous System
3 divisions: parasympathetic, sympathetic, enteric
Is a component of the nervous system that regs. involuntary physiologic processes such as HR, BP, respiration, digestion, sexual arousal
Parasympathetic System
Reacts to acetylcholine (decrease in HR)
body at rest= dominant para nervous system
Sympathetic System
Reacts to catecholamines (epinephrine and norepinephrine)= inc. HR
Systolic Blood Pressure
BR reading during the contraction or ejection phase
Diastolic Blood Pressure
BP reading during filling phase
Tidal Volume
amount of air inhaled/exhaled her breath
Plasma
reduces blood viscosity, enhances O2 delivery to skeletal muscles
