During a muscle contraction, what is recorded on a sEMG? 6. Spike numbers were measured during a ____msec period. Results Table 3. Muscle Tone (Resting) and Isotonic Contractions increase not change 20 pounds amplitude and frequency of sEMG spikes muscle movement total number of motor units present in muscle, muscle load, subject's physical condition amplitude and frequency of sEMG spikes muscle load total number of motor units present in muscle, muscle movement, subject's physical condition Surface Electromyography Response/electrical impulse .2 Amplitude (mV) Spike Numbers (per 0.2 sec time period) Rest Concentric Eccentric Rest Concentric Eccentric Subject 1 0.12 0.41 0.35 1 20 20 Subject 2 0.10 0.48 0.33 1 20 20 Subject 3 0.12 0.46 0.32 1 19 20 Laboratory Report/ Chloe Canon/ Recruitment and Isotonic and Isometric Contractions/ Tammy Coleman-Card/ 07.19.2015/ Page [1] of [4] Amplitude (mV) Spike Numbers (per 0.2 sec time period) Rest Concentric Eccentric Rest Concentric Eccentric average 0.11 0.33 0.11 1 20
Then divide that time by 12 and multiply by 60. After the resting heart rate is completed, exercise by using a stepping stool or low chair. While exercising, determine how long to exercise to increase the heart rate by 1.7 X the resting rate and rest 5 minutes between exercise bouts. After completing the exercise, attach electrodes tot the recording ECG as soon as possible after exercise and record for 4 minutes. Determine BPM for first 30 seconds in minute 1 of recovery, first 30 second.
148mmHg c. The range of normal resting systolic BP for the subjects in this experiment is 115-125 mmHg. Did systolic BP increase, decrease, or not change with exercise? Systolic blood pressure increased with exercise. 2. Resting and exercising diastolic BP a.
Heart rate ECG of the heart rate Results Table 2: Effect of Exercise on Systolic and Diastolic Blood Pressure (SBP, SDP), Heart Rate (HR) and Stroke Volume (SV) Resting Values Immediately After exercise Systolic BP (mmHg) Diastolic BP (mmHg) HR (beats/min) SV (mL) Systolic BP (mmHg) Diastolic BP (mmHg) HR (beats/min) SV (mL) 120 83 74 0.08 146 81 147 0.106 121 81 74 0.075 149 84 146 0.108 125 83 73 0.075 146 81 146 0.109 122 82 74 0.077 147 82 146 0.108 147 82 146 0.108 Laboratory Report/ Nicole Shook/ Effect of Exercise on Arterial Pressure and Vascular Resistance/ Lisa Nelson/ 11.15.2014/ Page [1] of [4]Resting and Early Post-Exercise SBP and DBP 1. Resting and exercising systolic BP - a. What was the average resting systolic BP? 122 mmHg b. What was the average exercising systolic BP?
Smoking Affecting Cardiovascular Health Abstract In order to determine if smoking affects cardiovascular fitness we performed the stair step test on non-smokers, light smokers, and heavy smokers and measured the heart rate at several times. We measured the subjects pulse previous to the stair test, immediately after the test, and every minute after to calculate how long it took to return to normal heart rate. The non-smokers had a lower beginning heart rate, as well as a heart rate that returned back to resting heart rate very quickly. However the heavy smokers’ resting heart rate was slightly higher, the heart rate measured directly after the stair test was nearly doubled for each subject. The light smokers held a steady heart rate for the most part, much like the non-smokers, with their heart rates quickly returning to normal.
The principle of HRV measurement is to determine the autonomic balance influences on the sino-atrial node’s intrinsic rhythm. Variation of the beat-to-beat heart rate (HR) intervals reflects the balance between sympathetic and parasympathetic activity which modulates cardiac function. The of beat-to-beat variation in the time of consecutive heartbeats expressed in normal sinus rhythm is recorded on an electrocardiogram (ECG), ranging from a few minutes to 24 hours. The ability of the cardiac autonomics’ responsiveness to dynamically environmental changes results in increased HRV and generally indicates a healthy heart. A reduction in HRV may be indicated an inability in the cardiac autonomic to respond to
How is Cardiovascular Fitness Measured? Michael Holland 8/27/2014 Bio 101 Dr Paul Casner Question 1 What does a blood pressure measurement of 110/70 mean? Not Scored: The first number, 110, refers to the systolic pressure in the vessel. The pressure is highest at this time due to the ventricles in the heart contracting and pushing blood through the vessel. The second number, 70, refers to the diastolic pressure.
Honors Biology Final Lab Report June 9 2009 Problem: How does caffeine affect your heart rate? Hypothesis: Caffeine, as a stimulus would act to raise the resting heart rate. Approximately two bpm rise per mg per oz. Of caffeine. Procedure: • Gather a test group of 15 people who have not done any strenuous activity in previous hour, also no caffeine for 8 hours (to get resting heart rate).
In this lab experiment four leads were used: one each on the left and right wrist and one each placed above the ankle of the left and right foot. Each of the different leads gives information about regions of the heart (VanPutte, 2011). After labeling where P, Q, R, S and T are; then four different values were taken to calculate how fast or slow the heart beats were. The four components were: beats per minute, PR
The effects of music and other noise on stress, measured through physiological responses.  Abstract A study was carried out using 70 students from the University of Ulster Coleraine. The experiment used biopic heart rate and galvanic skin response equipment to measure changes in these two factors which are indication of stress, whilst a number of sounds were being played to the participants. The sounds played were no noise, white noise, classical music and self selected participants music. The results of the study show that no noise provided a baseline, white noise created stress responses with the lowering of galvanic skin response and the increase in heart rate, classical counteract the white noise, lowering heart rate and raising galvanic skin response but the most convincing results cam from the participants own music which gave vast reductions in heart rate and significant raising in galvanic skin response.