7 семестр / Лаба 1 / Материалы / l7___

L07 - ECG & Pulse (4.1.0 Feb 12 2015)
File name: laba7-L07
23.09.2020
17:11:15

First recording (starts at event labeled 'Seated and relaxed'): Seated in a chair with arms relaxed.

Second recording (starts at event labeled 'Seated, left hand in water'): Seated in chair with left hand in water.

Third recording (starts at event labeled 'Seated, right hand above head'): Seated in chair with right hand raised above the head.

-----------------------------------------------------------------------------------------------------------------------------------------------------------------
L07 DATA REPORT
Student’s Name:
Lab Section:
Date:

I. Data and Calculations
Subject Profile
Name: Height:
Age: Gender: Weight:
Note: This Data Report assumes that all lesson recordings were performed, which may not be the case for your lab. Please disregard any references to excluded recordings.
A. Comparison of ECG with Pulse Plethysmogram (Recordings 1-3)
Complete Table 7.1 with data from three cycles from each condition and calculate the Means.
Table 7.1
Condition
Selected Area
Measurement
Cycle 1
Cycle 2
Cycle 3
Mean
Arm Relaxed
R-R Interval



P-P = 1.35528 mV

P-P = 1.45568 mV

P-P = 1.40502 mV



Heart Rate

BPM = 86.95652 BPM
BPM = 90.22556 BPM
BPM = 81.08108 BPM



Pulse Interval

P-P = 1.43562 mV
P-P = 1.33305 mV
P-P = 1.11294 mV



Pulse Rate

BPM = 86.95652 BPM
BPM = 90.22556 BPM
P-P = 1.34979 mV


Temp. Change
R-R Interval

P-P = 1.34979 mV

P-P = 1.31591 mV


P-P = 1.30645 mV




Heart Rate

BPM = 63.15789 BPM
BPM = 70.17543 BPM
BPM = 70.17543 BPM



Pulse Interval

P-P = 0.18137 mV
P-P = 0.22688 mV
P-P = 0.20521 mV



Pulse Rate

BPM = 63.15789 BPM
BPM = 70.17543 BPM
BPM = 70.17543 BPM

Arm Up
R-R Interval

P-P = 1.32720 mV

P-P = 1.39434 mV

P-P = 1.34155 mV




Heart Rate

BPM = 78.94736 BPM
BPM = 78.94736 BPM
BPM = 69.76744 BPM



Pulse Interval

P-P = 0.02677 mV
P-P = 0.03052 mV
P-P = 0.04451 mV



Pulse Rate

BPM = 78.94736 BPM
BPM = 78.94736 BPM
BPM = 69.76744 BPM



B. Relative Volume Changes (Recordings 1-3)
Complete Table 7.2 with data from each recording.
Table 7.2


Arm Resting
Temp.
Arm Up
Measurement
Recording 1
Recording 2
Recording 3
QRS Amplitude

P-P = 1.35803 mV

P-P = 1.34185 mV

P-P = 1.28631 mV

Relative Pulse Amplitude (mV)

P-P = 1.38140 mV

P-P = 0.20122 mV

P-P = 0.10279 mV



C. Calculation of Pulse Speed

Distance between Subject’s sternum and shoulder? cm
Distance between Subject’s shoulder and fingertip? cm
Total distance? cm


Data from 'Arm Relaxed' of the recording (measure with I-Beam)

Time between R-wave and Pulse peak? Delta T = 0.42500 sec secs
Speed? Area = 0.05152 mV-sec cm/sec


Data from 'Arm Up' of the recording (measure with I-Beam)
Time between R-wave and Pulse peak? Delta T = 0.42000 sec secs
Speed? Area = 0.06706 mV-sec cm/sec
II. Questions

D. Referring to data in table 7.1, are the values of heart rate and pulse rate similar for each condition? Yes No
Explain why the values might differ or be similar.


E. Referring to Table 7.2 data, how much did the amplitude of the QRS complex change between conditions?
Extreme temp – Arm Resting? mV
Arm up – Arm Resting? mV


F. Referring to Table 7.2 data, how much did the pulse amplitude change between arm positions?
Extreme temp – Arm Resting? mV
Arm up – Arm Resting? mV


G. Referring to Table 7.2 data, does the amplitude of the QRS complex change with the pulse amplitudes? Why or why not?



H. Describe one mechanism that causes changes in blood volume to your fingertip.


I. Referring to data from section C of this report, how would you explain the difference in speed, if any?



J. Which components of the cardiac cycle (atrial systole and diastole, ventricular systole and diastole) are discernible in the pulse tracing?


K. Would you expect the calculated pulse wave velocities of other students to be very close if not the same as yours? Why or why not?


L. Explain any amplitude or frequency changes that occurred with arm position.



III. OPTIONAL Active Learning Portion

A. Hypothesis


B. Materials


C. Method


D. Set Up


E. Experimental Results






End of Lesson 7 Data Report


BSL 4.0 DRL07-04122013