The Youth Scientists Journal

Respiration

Posted on: 17 August 2009

Members : Benjamin, Nadiah, Haryani & Darren
In this week practical, we are investigating the effects of different exercises on the human body. Our subject for the activity given is Darren, one of our team members who are assigned to doing star jumps continuously for 5 minutes. We measure the breathing rate, heart rate, body temperature and the oxygen concentration before the experiment started which then Darren had to start jumping for 20 seconds before we measure the breathing rate, heart rate, body temperature and the oxygen concentration again.
ANALYSIS AND SYNTHESIS OF EXPERIMENT
Oxygen Temperature Heart Rate Breathing Rate
Before exercise 11.4 31 100 1.1
1st (star jump) 0.4 33.8 102 1.7
2nd (star jump) 0.38 36 90 1.6
3rd (star jump) 0.39 30.5 144 0.98
4th (star jump) 0.24 37 126 1.67
5th (star jump) 0.24 35.6 132 1.7
6th(resting) 11.38 31.5 100 1.3
7th (resting ) 11 30 120 1.8
8th (resting ) 11.25 31.1 72 1.6
9th (resting ) 11.4 31.5 102 1.7
10th(resting) 10.98 31.25 114 1.6
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The results is inaccurate because of human and random errors
• where we took a longer to set up the equipment to recorded the readings.
• Oxygen sensor set up wrongly
• The time (20s) was delayed as we forgotten about it
• Hence, Darren was left to doing more star jumps

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