Procedure for Activity 11 Part D - Analysis of Breathing Rate Changes and Physiology
For this activity, you will use your data, observations, background information, and reliable internet resources to answer the following questions, as directed by your instructor. Be prepared to contribute to a whole class discussion.
Procedure for Activity 11.2, Part C - Determination of Breathing Rate During Strenuous Activities
Before you begin, read the procedure fully. It contains notes about how to perform some of the activities. You should use a different subject to perform each of the actions in this activity.
Determine who will be the subject for each of the activities listed in Table 11.6. During each activity, determine the subject's breathing rate, as directed below. Record the breathing rate for each activity in Table 11.6 as breaths/minute. Additionally, record any other observations that you think are pertinent in Table 11.6.
1. For Activity 11.2, Part C - Exercise:
a. In most cases, you will have observed that the subject's respiration rate increased while exercising. Describe three mechanisms (such as receptors, brain areas, or muscles involved psychological inputs; hormones; responses to chemical contents of blood) that enable this increase in respiration rate.
b. Again, in most cases, you will have observed that the subject's respiration rate increased while exercising. You could not see that tidal volume and tidal volume increased, but they aid. Explain what tidal volume is and why it increased.
i. What respiratory volumes need to increase to increase vital capacity? What, if any, respiratory volume(s) remained unchanged?
For Exercise: Allow the subject to breathe normally for two minutes and record this quiet/normal respiration rate as 0.
Place, race waking, climbing several flights of stairs, doing burpees, performing wallsits or planks - anything that requires the subject to exert significant effort. As soon as the subject stops, record the respiratory rate every minute for 5 minutes, or until a normal, resting breathing pattern returns. Also record how long it took (recovery time) for the subject's breathing pattern to return to normal in seconds. Enter this data in Table 11.6.
For Deep Inhalation: Allow the subject to breathe normally for two minutes and record this quiet/normal respiration rate as the initial respiration rate in Table 11.6. After this initial period, have the subject deeply inhale and then hold their breath for as long as possible. Record (in seconds) how long the subject was able to hold their breath. Enter this data in Table 11.6.
For Forced Exhalation: Record the initial respiration rate in Table 11.6. After this initial period, have the subject deeply exhale and then hold their breath for as long as possible without inhaling. Record (in seconds) how long the subject was able to hold their breath. Enter this data in Table 11.6. As soon as the subject releases the breath, record the respiratory rate every minute for 5 minutes, or until the subject's breathing pattern returns to normal in seconds. Enter this data in Table 11.6.
For Hyperventilation: Allow the subject to breathe normally for two minutes and record this quiet/normal respiration rate as the initial respiration rate in Table 11.6. Have the subject hyperventilate (breathe rapidly, about 1 breath/4 seconds) for approximately 30 seconds. Record the subject's breathing rate immediately after hyperventilation. Then, record the respiratory rate every minute for 5 minutes, or until the subject's breathing pattern returns to normal in seconds. Enter this data in Table 11.6.
