BPK 142 Lecture Notes - Age Adjustment, Claudication, Reference Electrode
16 Dec 2012
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Submaximal exercise total heart volume and total blood volume. Determining good endurance performance = size of cardiacoutput (q: rate that heart pumps blood per min given in product of stroke volume (sv) or blood pumped per min of heart, and hr (bpm) Typically, for a male at rest, sv is 80 millilitres and hr is 70 beats per minute. 80 ml/b 70 ml/min = 5,600 ml/min = 5. 60 l/min. *can be 35 litres per minutes during maximal aerobic exercise in a world-class, male, endurance athlete. Set of adjustable tubes flow of blood causes pressure to increase (depending on q + flex of tubes) Flow (q) = mean arterial blood pressure / tpr. Heart muscle contracts from electrical signal from right atrium (sinoatrial node ( pacemaker)) 3 positions used to produce ecg: left wrist, right wrist, left ankle (einthoven leads, right ankle = reference electrode, fifth electrode (exploring) used to p/u signals @ various points over chest.
