UMass Amherst KIN 470 - lab report 4 kin 470 (7 pages)

Previewing pages 1, 2 of 7 page document View the full content.
View Full Document

lab report 4 kin 470



Previewing pages 1, 2 of actual document.

View the full content.
View Full Document
View Full Document

lab report 4 kin 470

211 views


Pages:
7
School:
University of Massachusetts Amherst
Course:
Kin 470 - Exercise Physiology
Unformatted text preview:

Victoria Newbury Lab Section Tuesday 1 00 Due Date 3 14 14 Grad TA Ben Hoffman Lab Report 4 Blood Pressure and Acute Response RESULTS Table 1 Participant Characteristics Participant 1 Height Weight Age Gender Training Status cm 177 8 kg 63 5 21 Female Active 4 5 days per week 30 mins aerobic cardio 30 Participant 2 180 34 95 25 23 Male mins anaerobic resistance Moderately active 2 times per week intense cardio 2 times lifting Table 2 Blood Pressure with Cold Participant 1 SBP DB Rest 1 112 78 Rest 2 112 76 Supine 1 108 74 Supine 2 102 70 Cold 116 71 5 min 114 70 10 min 112 75 P Table 3 Blood Pressure with Cold and Exercise Participant 2 Rest 1 Rest 2 Supine 1 Supine 2 Exercise Cold mmHg mmHg mmHg mmHg mmHg Exercise mmHg SBP DBP PP MAP 123 75 48 91 Calculations PP for Participant 2 PP SBP DBP Rest 1 PP 123 75 48 Rest 2 PP 127 84 43 Supine 1 PP 120 82 38 Supine 2 PP 120 79 41 Exercise PP 128 74 54 Cold Exercise 127 84 43 98 3 120 82 38 94 7 120 79 41 92 7 128 74 54 101 140 79 61 109 5 PP 140 79 61 MAP for participant 2 Rest 1 MAP SBP DBP 3 DPB 123 75 3 75 91 Rest 2 MAP SBP DBP 3 DPB 127 84 3 84 98 3 Supine 1 MAP SBP DBP 3 DPB 120 82 3 82 94 7 Supine 2 MAP SBP DBP 3 DPB 120 79 3 79 92 7 Exercise MAP SBP DBP 2 DBP 128 74 2 74 101 Cold Exercise MAP SBP DBP 2 DBP 140 79 2 79 109 5 DISCUSSION Blood pressure is dependent upon body position and activity level of the body Body position is significant for blood pressure because it differs between the supine position sitting and standing Crossing your legs also may impact blood pressure by increasing it Erer Khorshid Gunes Demir 2007 Blood pressure drops when standing as opposed to sitting or supine Blood pressure is at its highest when in the supine position Typical blood pressure measurements are done in the seated position with the arm supported on a level surface The seated blood pressure differs from the supine blood pressure because of the location of the heart and angle of the legs and the upper body Because the body is upright gravity is able to aid the heart in sending blood to the lower extremities of the body In the supine position the heart is level with the rest of the body and blood pooling may occur in the lower extremities Because of this the heart is required to increase blood pressure in order to efficiently circulate blood through the body Sometimes a person may experience a temporary blackout when standing up from a sitting or lying down position for extended periods of time This is referred to as orthostatic hypotension The reason for this occurring is that there is a rapid decrease in blood pressure 8 15 seconds after standing along with an increase in heart rate Systolic blood pressure drops by at least 20 mm Hg or diastolic blood pressure drops by 10 mm Hg This normally goes away after a few seconds and the person is normally fine Stewart Clarke 2012 Mean arterial pressure MAP is the average pressure in the arteries and tends to be closer to the diastolic blood pressure because arterial blood pressure is only in systole about a third of the time Mean arterial pressure is not equal to SBP DBP 2 because of this The arterial blood pressure spends a lot more time in diastole than systole so it is equal to SBP DBP 2 DBP Participant 2 s mean arterial pressure increased significantly during exercise and exercise with cold as opposed to sitting and supine This can be attributed to the fact that the systolic blood pressure increases significantly during exercise in order to keep up with the increased demands of the body Diastolic blood pressure does not change significantly during exercise despite intensity Systolic blood pressure changes because of the physiological mechanisms of the heart to increase blood output and will increase more with higher intensities Typically systolic blood pressure increases by 10 15 mmHg for every 300 kg m min The differences in mean arterial pressure between sitting and supine are hard to distinguish with the data we obtained because it is not very consistent I would assume that normally the mean arterial pressure would be higher in the supine position than sitting as blood pressure is higher in supine position Blood pressure in the sitting position is significantly lower than blood pressure during exercise Both participants tested their blood pressure after the cold pressor test participant 1 performed the test during exercise In both cases their blood pressure increased This was expected because the cold ice water causes a sympathetic response by the body The sympathetic response entails the excitation of target organs heart and cardiovascular system It will cause an increase in cardiac output and constrict vessels in order to retain heat in the body Because the vessels are restricted there is higher blood pressure in the body After the Cold Pressor test blood pressure took several minutes to return to normal Participant 1 s blood pressure returned to normal after about five minutes I did not expect this I expected their blood pressure to return to normal at a faster rate than it did The physiological reasoning for this is that it takes several minutes for the body to stop releasing vessel constricting hormones and to vasodilate the vessels The hand also remains cold for several minutes after removing it from the ice water so the body still may have constricted blood vessels to the temperature of the hand returns to normal levels There were a few errors that occurred during the lab such as difficulty hearing the Korotkoff sounds and faulty equipment Because it was fairly loud in the room we had to do several attempts to take the blood pressure of the participants The stethoscope we used was also faulty as one of the pieces kept falling off and we had to attempt to record their blood pressure again Resources Eser I Khorshid L Gunes U Y Demir Y 2007 The effect of different body positions on blood pressure Journal of Clinical Nursing 16 1 137 140 Stewart J M Clarke D 2012 He s dizzy when he stands up An introduction to initial orthostatic hypotension The Journal of Pediatrics 158 3 499 504


View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view lab report 4 kin 470 and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view lab report 4 kin 470 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?