21 A. Heart Rate Abnormalities Tachycardia: rapid beating of the heartBradycardia: slow beating of the heart –heart rate under 60 bpm
22 Desired range of heart rate reached during aerobic exercise. Target Heart Rate:Desired range of heart rate reached during aerobic exercise.AgeTarget HR Zone 50–85 %Average Maximum Heart Rate 100 %20 years100–170 beats per minute200 beats per minute25 years98–166 beats per minute195 beats per minute30 years95–162 beats per minute190 beats per minute35 years93–157 beats per minute185 beats per minute40 years90–153 beats per minute180 beats per minute45 years88–149 beats per minute175 beats per minute50 years85–145 beats per minute170 beats per minute55 years83–140 beats per minute165 beats per minute60 years80–136 beats per minute160 beats per minute65 years78–132 beats per minute155 beats per minute70 years75–128 beats per minute150 beats per minute
23 Heart SoundsLUB-S1: Block reverse blood flow due to closure of atroventricular valves (mitral, tricuspid)DUPP-S2: sudden block of reversing blood flow due to closure of aortic and pulmonary valves.
31 Pulse: “heart rate”-rate at which your heart beats. Pulse is what you feel over an arteryas the pressure inside increases followingeach heart beat.
32 Blood Pressurerefers to the force exerted by circulating blood on the walls of blood vesselsMeasurement: Can be measured invasively (by penetrating the skin and measuring inside the blood vessels) or non-invasively
33 Systolic Pressure: maximum pressure in an artery-beating and pumping Diastolic Pressure: is the lowest pressure in an artery-resting
34 Why might a solider standing at attention for a long period of time faint? If the leg muscles are not used, blood is not pumped back to the heart. As a result, blood pools in the leg veins, and blood pressure falls