Homeostasis Lab Report
Homeostasis Lab:
The Effects of Exercise on Homeostasis
Purpose:
To discover the effect that various levels of exercise have on specific body parameters.
Hypothesis:
If a subject walks up and down a flight of stairs for eight minutes, then they start to sweat more, their heart rate, body temperature, and breathing rate will increase, and there will be a change in their skin color on their arms and face, because the body will be trying to maintain homeostasis.
Materials:
You will need…
-An iPhone with the apps "Body Temperature" and "Heart Rate"
-A pencil
-A stopwatch
-A stairwell
-An instruction packet
Introduction:
Your body is always trying to maintain a state of balance known as homeostasis. When you exercise, you generate a wide range of effects on the systems of your body. It strives to help create enough energy to continue exercising as well as help the body recover afterwards. This state of energy creation and use has many effects on your body’s homeostasis including increased breathing, heart rate, and sweat rate and a change in external body temperature and skin color on the arms and face. In this lab, 1 member of each group shall be the subject who will exercise for 8 minutes by walk up and down a flight of stairs. The subject’s breathing …show more content…
rate, heart rate, perspiration level, external temperature, and skin color on the arms and face will be recorded at rest, 2 minutes, 4 minutes, 6 minutes, and 8 minutes, and 2 minutes after exercise has stopped.
Procedure:
1.Gather your materials.
2.Record the resting observations and values of your subject for each of the 5 parameters (Normal skin color of hands and face, normal perspiration level, resting breathing rate (30 seconds x2), external body temperature, resting heart rate (30 seconds x2).
3.Have the subject do an appropriate warm up session to avoid muscle injury.
4.Have your subject begin to walk up and down the stairwell.The subject should exercise at a level they can maintain for the entire 8 minutes.
5.Take your subjects parameter readings at the 2, 4, 6, and 8 minute time markers. Be sure to take final readings 2 minutes after your subject has stopped exercising.
6.Record all of your parameters in the table provided.
Data:
Body Color (normal, patchy, flushed) Perspiration Level (sweating or not, mild, medium, high) Body Temperature (celsius) Heart Rate (beats/min) Breathing Rate (breaths/min)
Rest normal none 37.05556 66 23
After 2 min of exercise normal none 36.6667 64 34
After 4 min of exercise patchy mild 37.16667 62 26
After 6 min of exercise patchy medium 36.88889 145 28
After 8 min of exercise flushed medium 37.2222 145 34
Rest for 2 min after exercise patchy mild 37.16667 81 25
Analysis:
Body Temperature (celsius)
Duration of Exercise (minutes)
The body temperature of the subject stayed consistent within the duration of exercise, fluctuating less than a degree each time it was recorded.
Heart Rate (beats/min)
Duration of Exercise (minutes)
After the first 2 minutes of exercise, the heart rate of the subject went down 2 beats/min and it went down another 2 beats/min when it was recorded after 4 minutes of exercise. At the 6 minute mark, the subject’s heart rate increased by 73 beats/min and continued to beat at 145 beats/min until we recorded the resting heart rate 2 minutes after exercising at 81 beats/min.
Breathing Rate (breaths/min)
Duration of Exercise (minutes)
The subject’s breathing rate fluctuated frequently, going from 23 breaths/min, up to 34 breaths/min, down to 26 breaths/min, up to 28 breaths/min, back to 34 breaths/minute, and then down to 25 breaths/minute.
The subject’s recorded resting body color was normal and he wasn’t sweating.
After 2 minutes of exercising, he didn’t show any change in body color or perspiration levels. After 4 minutes of exercise, the subject’s body color began to appear patchy and he began to mildly sweat. After 6 minutes of exercise, his body color still appeared to be patchy but his perspiration level increased from mild to medium. After 8 minutes of exercise, the subject’s body color increased to flushed and he was still showing medium perspiration levels. 2 minutes after he was done exercising, the subject’s body color went from flushed to patchy and his perspiration level went from medium to
mild.
Conclusion:
When you are exercising, you notice a change in your body color and perspiration level. This is your body trying to maintain homeostasis. When your body temperature rises, it automatically activates the sweat glands, in an attempt to cool itself down and the change in color on your arms and face is due to the increased blood flow to the skin. When exercising, a change in body temperature occurs because the muscles are burning fats and carbohydrates to create energy. As the muscles heat up,the circulating blood also warms up, producing a rise in core temperatures.To maintain its homeostatic temperature, the body can decrease the flow of heat to the skin, sweat, shiver, and emit different hormones and adrenaline. The more muscles are working, the more oxygen they need. The breathing rate increases to intake more oxygen and the heart rate increases to deliver more oxygenated blood throughout the body. By studying the parameter measurements after exercise has stopped, I can conclude that your body is constantly working to maintain homeostasis. The parameter measurements show that the body is always trying to be in its normal range. I conclude that if a subject walks up and down a flight of stairs for eight minutes, then they start to sweat more, their heart rate, body temperature, and breathing rate will increase, and there will be a change in their skin color on their arms and face, because the body will be trying to maintain homeostasis. I wouldn’t recommend changing anything in this lab. The only thing that I didn’t like was that the apps didn’t always get a very accurate reading.
The Effects of Exercise on Homeostasis
Purpose:
To discover the effect that various levels of exercise have on specific body parameters.
Hypothesis:
If a subject walks up and down a flight of stairs for eight minutes, then they start to sweat more, their heart rate, body temperature, and breathing rate will increase, and there will be a change in their skin color on their arms and face, because the body will be trying to maintain homeostasis.
Materials:
You will need…
-An iPhone with the apps "Body Temperature" and "Heart Rate"
-A pencil
-A stopwatch
-A stairwell
-An instruction packet
Introduction:
Your body is always trying to maintain a state of balance known as homeostasis. When you exercise, you generate a wide range of effects on the systems of your body. It strives to help create enough energy to continue exercising as well as help the body recover afterwards. This state of energy creation and use has many effects on your body’s homeostasis including increased breathing, heart rate, and sweat rate and a change in external body temperature and skin color on the arms and face. In this lab, 1 member of each group shall be the subject who will exercise for 8 minutes by walk up and down a flight of stairs. The subject’s breathing …show more content…
rate, heart rate, perspiration level, external temperature, and skin color on the arms and face will be recorded at rest, 2 minutes, 4 minutes, 6 minutes, and 8 minutes, and 2 minutes after exercise has stopped.
Procedure:
1.Gather your materials.
2.Record the resting observations and values of your subject for each of the 5 parameters (Normal skin color of hands and face, normal perspiration level, resting breathing rate (30 seconds x2), external body temperature, resting heart rate (30 seconds x2).
3.Have the subject do an appropriate warm up session to avoid muscle injury.
4.Have your subject begin to walk up and down the stairwell.The subject should exercise at a level they can maintain for the entire 8 minutes.
5.Take your subjects parameter readings at the 2, 4, 6, and 8 minute time markers. Be sure to take final readings 2 minutes after your subject has stopped exercising.
6.Record all of your parameters in the table provided.
Data:
Body Color (normal, patchy, flushed) Perspiration Level (sweating or not, mild, medium, high) Body Temperature (celsius) Heart Rate (beats/min) Breathing Rate (breaths/min)
Rest normal none 37.05556 66 23
After 2 min of exercise normal none 36.6667 64 34
After 4 min of exercise patchy mild 37.16667 62 26
After 6 min of exercise patchy medium 36.88889 145 28
After 8 min of exercise flushed medium 37.2222 145 34
Rest for 2 min after exercise patchy mild 37.16667 81 25
Analysis:
Body Temperature (celsius)
Duration of Exercise (minutes)
The body temperature of the subject stayed consistent within the duration of exercise, fluctuating less than a degree each time it was recorded.
Heart Rate (beats/min)
Duration of Exercise (minutes)
After the first 2 minutes of exercise, the heart rate of the subject went down 2 beats/min and it went down another 2 beats/min when it was recorded after 4 minutes of exercise. At the 6 minute mark, the subject’s heart rate increased by 73 beats/min and continued to beat at 145 beats/min until we recorded the resting heart rate 2 minutes after exercising at 81 beats/min.
Breathing Rate (breaths/min)
Duration of Exercise (minutes)
The subject’s breathing rate fluctuated frequently, going from 23 breaths/min, up to 34 breaths/min, down to 26 breaths/min, up to 28 breaths/min, back to 34 breaths/minute, and then down to 25 breaths/minute.
The subject’s recorded resting body color was normal and he wasn’t sweating.
After 2 minutes of exercising, he didn’t show any change in body color or perspiration levels. After 4 minutes of exercise, the subject’s body color began to appear patchy and he began to mildly sweat. After 6 minutes of exercise, his body color still appeared to be patchy but his perspiration level increased from mild to medium. After 8 minutes of exercise, the subject’s body color increased to flushed and he was still showing medium perspiration levels. 2 minutes after he was done exercising, the subject’s body color went from flushed to patchy and his perspiration level went from medium to
mild.
Conclusion:
When you are exercising, you notice a change in your body color and perspiration level. This is your body trying to maintain homeostasis. When your body temperature rises, it automatically activates the sweat glands, in an attempt to cool itself down and the change in color on your arms and face is due to the increased blood flow to the skin. When exercising, a change in body temperature occurs because the muscles are burning fats and carbohydrates to create energy. As the muscles heat up,the circulating blood also warms up, producing a rise in core temperatures.To maintain its homeostatic temperature, the body can decrease the flow of heat to the skin, sweat, shiver, and emit different hormones and adrenaline. The more muscles are working, the more oxygen they need. The breathing rate increases to intake more oxygen and the heart rate increases to deliver more oxygenated blood throughout the body. By studying the parameter measurements after exercise has stopped, I can conclude that your body is constantly working to maintain homeostasis. The parameter measurements show that the body is always trying to be in its normal range. I conclude that if a subject walks up and down a flight of stairs for eight minutes, then they start to sweat more, their heart rate, body temperature, and breathing rate will increase, and there will be a change in their skin color on their arms and face, because the body will be trying to maintain homeostasis. I wouldn’t recommend changing anything in this lab. The only thing that I didn’t like was that the apps didn’t always get a very accurate reading.