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Aerobic System

QuestionAnswer
Tidal Volume (TV)? Amount of air moved in an inhalation/expiration
Forced vital capacity (FVC)? Amount of air that can be forcibly exhaled after big inspiration
Residual lung volume (RLV) Whats left in the lungs after maximal expiration
FEV 1.0 = Force expiratoy volume in 1 second
Minute ventilation ? Volume of air moved in one minute Frequency of breaths/minute * tidal volume
Anatomical deadspace? Air that fills the nose, mouth, etc/OTHER ANATOMY. No gas exchange takes place
Physiological deadspace?
Dysnpea Shortness of breath
What is myoglobin? Protein containing heme. found in muscle cells. Carries/stores oxygen
Chemoreceptors? Sensory cell/organ that responds to chemical stimuli. Found in carotid artery, aorta,
Ventilatory threshold? Point were pulmonary ventilation increases disproportionately with oxygen uptake during graded exercise.
Onset of blood lactate accumulation? (OBLA) Implies imbalance of production and clearance. occurs at 55-65% vo2 max in healthy, 80% in trained athletes.
Rhythmic exercise effect on blood pressure? Increases systolic first few minutes, then levels out. Diastolic unchanged
Resistance trainings effect on blood pressure? Increase blood pressure dramatically
Rate pressure product (RPP) formula? Systolic BP * HR
3 factors that determine myocardial oxygen update? *Myocardial contractility *Heart rate *tension development
Autonomic nervous system on HR Sympathetic: Increases HR Parasympathetic: decreases HR
Factors to determine blood flow resistance *Viscosity (thickness) *Length of conducting tube *dilation of blood vessel
Cardiac output? Blood ejected per minute HR*SV
Stroke volume? Blood ejected per beat
Stroke volume? Cardiac output/Heart rate
VO2 max formula? Max cardiac output times avo2 difference
Aerobic exercise on blood pressure? Systolic - increase Disastolic - no change
Anaerobic exercise on blood presure? Both increase
O2 utilization in heart 70-80% taken up in heart. 25% at rest in other cells
Cardiac drift? (CD) Most likely to occur in hot environment... decrease in SV
Function of the pulmonary system Bring in oxygen, decrease CO2, mantain acid base balance
Hyperventilation? Taking in too much oxygen, blowing off too much CO2
How breathing works at rest? Under neural control.. diaphragm contracts, reach pressure differential, diaphragm relaxes.
Breathing during exercise? External intercostal/scalene assist in inspiration during exercise.
Hemoglobin Caries oxygen in blood
PCr (Phosphocreatine) Used to re synthesize ATP
Transanimation Transfer of amine group from one molecule to another
Deanimation removal of amine group from molecule
BMR Basal metabolic rate. energy expended at rest
EPOC Exercise post oxygen consumption... Oxygen debt
Created by: justinmcmahon