Lab 5 - Heart Rate-1.doc - LabQuest 1 Heart Rate as a Vital...

This preview shows page 1 out of 3 pages.

Human Physiology with Vernier 3 - 1 LabQuest 4 1) Heart Rate as a Vital Sign and 2) Heart Rate and Exercise Introduction: Heart rate is a vital sign that indicates healthiness or wellness levels, as it can hint at the presence of medical conditions. Things as simple as bleeding and dehydration lead the heart to beat faster to level blood pressure while even heightened emotion can raise blood pressure or heart rate speed through the autonomic nervous system. The sympathetic nervous system consists of the sympathetic (increases in BP, HR) and parasympathetic (decreases in BP, HR) nervous systems. Sympathetic stimulation’s resulting increase in blood pressure stretches nerve fibers in the baroreceptors with triggers the parasympathetic. The heart responds to exercise with a higher cardiac output, and fitter people can move more blood per heartbeat than the average person. Fitter people can also keep their heart rate lower longer, and recover quicker. Methods/Materials: We used an ice water bath, towel, saline dropper bottle, as well as the LabQuest technology and Vernier heart rate monitors (both hand-grip and exercise). We connected the heart rate monitor to LabQuest, we had Sam sit quietly with the heart rate monitor strapped to the base of his rib cage using the belt. He held the monitor in his right hand and we collected baseline data and recorded it. For the second data collection, we began it, he then put his put in ice water for 30 seconds, removed it and placed foot on the towel, and then stayed there for 240 seconds. From that data we found the maximum, mean, and rebound heart rates. For the
Image of page 1
You've reached the end of this preview.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern