Runiy Bin Maldud BT 11210196 Human Physiology : Hemeostasis Lab The Effects of Exercise on Homeostasis Purpose : To discover the effect that various levels of exercise have on specific body parameters. Hypothesis : How do you predict the 6 observed and measured parameters will change as the subject exercises? Materials : Skipping Rope/bicycle ergometer/treadmill Thermometer Blood Pressure/Heart Rate Kit Stop watch Ethanol Cotton Balls Introduction : Exercise causes many homeostatic factors to kick in, in an effort to maintain internal homeostasis. How exercise effect some of these hemeostasis factors can be determined by measuring ang observing certain parameters such as : Change in skin colour on arms and face Perspiration Level External Body Temperature Heart Rtae Blood Pressure Breathing Rate Procedure : 1. Each group should obtain : a skipping rope, bicycle ergometer or trademill, thermometer, blood pressure/heart rate kit, and stopwatch. 2. Before proceeding with the lab each group should be sure that they are able to obtain readings using the blood pressure kit. The cuff should be atteched directly to yaour skin just above the elbow joint. The black tube exiting the cuff needs to be resting on the inside of your arm at your elbow where a pulse can be measured. In order to avoid an error “ ” reading the subject needs perfectly still when are taking blood pressure/heart rate measurements. Begin by inflating the cuff, using the black bulb, the monitor will beep when the cuff is sufficiently inflated. The monitor will take the blood pressure reading and heart rate it slowly
Transcript
Runiy Bin MaldudBT 11210196
Human Physiology : Hemeostasis LabThe Effects of Exercise on Homeostasis
Purpose :
To discover the effect that various levels of exercise have on specific body parameters.
Hypothesis :
How do you predict the 6 observed and measured parameters will change as the subject exercises?
Materials :
Skipping Rope/bicycle ergometer/treadmill
Thermometer
Blood Pressure/Heart Rate Kit
Stop watch
Ethanol
Cotton Balls
Introduction :
Exercise causes many homeostatic factors to kick in, in an effort to maintain internal homeostasis. How exercise effect some of these hemeostasis factors can be determined by measuring ang observing certain parameters such as :
Change in skin colour on arms and face Perspiration Level External Body Temperature Heart Rtae Blood Pressure Breathing Rate
Procedure :
1. Each group should obtain : a skipping rope, bicycle ergometer or trademill, thermometer, blood pressure/heart rate kit, and stopwatch.
2. Before proceeding with the lab each group should be sure that they are able to obtain readings using the blood pressure kit. The cuff should be atteched directly to yaour skin just above the elbow joint. The black tube exiting the cuff needs to be resting on the inside of your arm at your elbow where a pulse can be measured. In order to avoid an “error” reading the subject needs perfectly still when are taking blood pressure/heart rate measurements.
Begin by inflating the cuff, using the black bulb, the monitor will beep when the cuff is sufficiently inflated. The monitor will take the blood pressure reading and heart rate it slowly releases air from the cuff. At the end both a blood pressure and the heart rate reading should appear on the monitor screen.
3. The resting observations and values of object for each of the 6 parameters are recorded.I. Record normal skin colour of hands and face (i.e pale, pink, red etc)
II. Record normal prespiration level (i.e none, mild, medium, high)III. Record external body temperature by placing thermomter unfer the subjects arm pit
for i minute. Note : measurements should be taken directly from skin.IV. Record the resting blood pressure and heart rate using the blood pressure cuff/heart
rate monitor.V. Determine the breathing rate by counting the number of breaths taken in 1 minute.
4. The subjects began to cycle. He/she exercised at a level that he/she can maintain for entire 8 minutes.
5. The subjects parameter readings are taken using the same techniques that described at the 2, 4, 6, and 8 minute time markers. The final readings are taken i minute after the subjects has stopped exercising.
6. All of the parameters readings in the table provided arw recorded.7. After cleaning the thermometer with ethanol, returned it along with the other lab materials
to the front of room.
Results :
Subject 1
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal None 36.6 64 122/70 25
2 min of exercise
Normal None 36.3 78 140/75 25
4 min of exercise
Pink None 36.6 116 163/82 25
6 min of exercise
Pink Low 36.8 125 169/86 27
8 min of exercise
Red Medium 36.9 125 182/51 28
1 min after
exerciseRed High 36.6 86 144/76 20
Subject 1
Subject 2
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal none 37.0 65 144/85 22
2 min of exercise
Normal Medium 36.8 107 156/90 45
4 min of exercise
Pink High 36.6 145 148/88 51
6 min of exercise
Pink High 36.4 85 122/96 45
8 min of exercise
Pink High 35.6 125 140/81 43
1 min after
exercisePink Medium 36.2 93 141/65 32
Subject 2
Subject 3
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal none 36.2 66 125/77 27
2 min of exercise
Normal Medium 36.2 85 145/83 47
4 min of exercise
Normal Medium 36.6 115 194/78 57
6 min of exercise
Normal High 36.1 109 153/96 60
8 min of exercise
Normal High 36.0 152 128/85 67
1 min after
exerciseNormal Medium 36.3 106 156/79 64
Subject 3
Subject 4
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal None 36.5 83 134/73 25
2 min of exercise
Normal Low 37.1 136 175/93 26
4 min of exercise
Normal Medium 37.0 75 137/85 28
6 min of exercise
Pink Medium 37.1 154 146/83 29
8 min of exercise
Red High 37.5 166 170/84 32
1 min after
exercisePink High 37.0 122 146/84 26
Subject 4
Subject 5
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal None 35.6 78 104/65 27
2 min of exercise
Normal None 36.0 140 121/96 38
4 min of exercise
Pink Medium 36.8 69 195/103 39
6 min of exercise
Pink Medium 36.8 100 152/100 33
8 min of exercise
Pink High 37.2 101 120/60 34
1 min after
exercisePink High 36.2 89 106/69 35
Subject 5
Subject 6
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal None 36.1 60 135/75 31
2 min of exercise
Normal None 36.6 113 169/76 32
4 min of exercise
Pink Low 36.2 87 91/55 37
6 min of exercise
Red Low 36.7 112 181/84 38
8 min of exercise
Red Medium 36.9 104 150/81 40
1 min after
exercisePink High 36.9 72 136/74 36
Subject 6
Subject 7
Body Color
Perspiration Level
Body Temperature (Celsius)
Heart Rate (beats/min)
Blood Pressur
e
(mmHg)
Breathing Rate
(breaths/min)
RESTNormal None 35.8 70 122/62 30
2 min of exercise
Normal None 36.1 73 129/74 33
4 min of exercise
Pink Medium 36.3 75 157/73 36
6 min of exercise
Pink Medium 36.0 79 159/81 38
8 min of exercise
Pink Medium 35.0 81 141/84 42
1 min after
exercisePink Medium 35.9 75 144/75 35
Subject 7
Discussion
1. What are the changes you observed in body colour and perspiration level in response to? How do these changes contribute to the maintenance of hemeostasis?As a result of exercising, your muscle cells in action start to respire more quickly than they normally do. One waste product of cellular respiration is heat, and since exercising increases the rate of respiration, more heat is being produced; thus, your blood temperature increases.One mechanism of homeostasis is thermoregulation, which consists of vasoconstriction (when you're too cold), and vasodilation (when you're too hot).When your blood temperature becomes too high, vasodilation causes the secretion of sweat which releases excess heat out into the environment and also onto your skin which will then evaporate to cool you down. This is why your perspiration levels increase during exercise.
As for the skin colour, well you appear red when exercising because, as stated earlier, your blood temperature is rising. Vasodilation causes the blood vessels to enlarge in size so that excess heat can be released out. Because of this dilation, the blood vessels appear more closer to the surface of your skin, and therefore you look red.
2. Why do you think a change in body temperature occurs? What mechanisms does your body use to maintain it’s hemeostatic temperature?
3. Why does ang increase in heart rate and breathing rate accompany exercise?4. Explain the results you obtained for diastolic (lower number) and systolic (higher number)
blood pressure.5. By studying your parameter measurements after exercise has stopped, what conclusions can
you draw about your body’s ability to maintain hemeostasis?
