Kinesiology 2230A/B Midterm: Some Small Details to Review
16 Mar 2017
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Document Summary
Fick equation: vo2 = hr x sv x (a-vo2 diff) Bradycardia slow heart rate, (clinically less 60) Tachycardia fast heart rate (clinically over 100) Map = dias bp + [0. 33(sys bp dias bp)] Echocardiography measuring chamber size and stroke volume through the cardiac cycle. Hypertrophic cardiomyopathy the septum gets bigger, smaller sv and not symmetrical contraction. Valsalva technique expiration against a closed glottis. Stroke volume affected by: factors affecting edv, venous tone, ventricular size and distensibility, respiratory pump, muscle pump, supine or standing. Hypoxia deficiency in the amount of oxygen reaching tissues. Necrosis death of cells creating scar tissue. Myocardial infarction very similar to a heart attack. Frank starling mechanism the energy of contraction is proportional to the initial length of the cardiac muscle fiber (intrinsic cannot control and is genetic). Preload: pretty much edv, volume of blood in the left ventricle prior to isovolumic contraction.
