Heart facts New Zealand Two out of five deaths are due to cardiovascular disease. Cardiovascular disease (heart stroke and blood vessel disease) is the leading cause of death, accounting for 40% of all deaths in the year % of those deaths were from coronary heart disease (CHD) 8% from diseases of the heart and circulation, and 10% from cerebrovascular diseases (stroke). Admissions to public hospitals for coronary heart disease totalled 29,456 in , 59% men and 41% woman. The death rate form CHD is more than twice as high for men than woman. Coronary heart disease is the leading cause of death in New Zealand. 26% male 21% female. Seventeen new Zealanders die each day as a result of CHD. (Technical report October 2004.) Stroke facts New Zealand Stroke is the third leading cause of death in New Zealand, contributing to 10% of all deaths. One in 48 adults has been diagnosed with stroke. Stroke is also an important cause if severe disability. Warning signs of a heart attack Chest discomfort. Most heart attacks involve discomfort in the center of the chest that lasts more than a few minutes, or that goes away and comes back. It can feel like uncomfortable pressure, squeezing, fullness or pain. Discomfort in the upper body. Symptoms can include pain or discomfort in one or both arms, the back, neck, jaw or stomach. Shortness of breath. This feeling often comes along with chest discomfort. But can occur before chest discomfort. Other signs. These may include breaking out in a cold sweat, nausea, or light headedness.

The heart

Question Can a heart rate of the average intermediate student reach up to 300 beats per minute if effected by exercise?

AIM We want to instigate the human heart and if different types of pulse rate can reach up to 300 beats per minutes if effected by exercise within a time line of 10 minutes. We are investigating about the human heart because room 23 are learning about active schools and wanted to know how the heart works and how high heart rate can reach when it is effected by exercise.

Hypothesis Room 23 were wondering if a heart rate could reach up to 300 beats per minute if we do exercise for ten minutes. I think that a heart rate could reach up to 300 beats per minute if everyone ran their best every time and put in their best effort, it would be possible for a heart rate to reach up to 300 beats per minute.

Method 1. Gather up equipment ready for run. 2. Time resting heart rate for 6 seconds then times it by ten. 3. Give results to recorder and write them down. 4. Line class up in a line and walk to exercise area. 5. Once at exercise area start time and start to run, keep control group from exercising. 6. After time is up gather round students and take pulse rate for 6 seconds and times pulse rate by ten. 7. Line back up and walk calmly back to class. 8. Once at class record results on a table. 9. Repeat this method for 4 days. 10. Once 3 days of exercise are up make graphs to compeer data.

Equipment For this exp. You will need A stop watch to time exercise. Something to run around/field. Students to run and do exercise. A control group. A timer/judge. A piece of paper to record heart rates on. Excel to make graphs to compeer data.

Room 23 boys results Aidan Russell absent Ben Woolerton Bram Bichau Conor Stuthridge absent Curtis Adams Dylan Johns Eugene Halgryn Harry Ash Ibrahim absent Kane Sergeant Max Petsef absent Milan Szasz absent PJ Nathan Sam Walker absent Suveer Dutt60130 absent Wyn McAlpine absent absent 70 absent Zed Williams absent

Room 23 girls results Alicia Gray absent Brooke Koopu absent Claudia Porritt Eloise Lawrie absent Ema-Rose Stewart Emma Connolly Libby Morrison absent Lucy Coombes Melissa Wade Molly Densem absent Monique Pengally absent Pare Tuhua Sabrina Cuellar absent Sahra Aideed absent absent Samara Coleman- Stimpson Tayla Hollick

Graph of day one boys heart rates

Graph of day one girls heart rates

Graph of day two boys heart rates

Graph of day two girls heart rates

Graph of day three boys heart rates

Graph of day three girls heart rates

Graph of day four boys heart rates

Graph of day four girls heart rates

Year 7 boys heart rates over four days

Year 7 girls heart rates over four days

Year 8 boys heart rates over four days

Year 8 girls heart rates over four days

Conclusion Our hypothesis stated that, that if we are active for ten minutes, our heart rate would increase by 300 beats per minute. To complete this experiment we needed to take our resting heart rate then go out and exercise for ten minutes and take our exercise heart rate. After completing this experiment we found that our hypothesis of a heart rate of an average intermediate student reaching up to 300 beats per minute, was incorrect. We can see this because the results show that no heart of a room 23 student reached over 220 beats per minute. This was due to some people not trying their hardest and people being away some days and affecting data. Our hypothesis stated that, that if we are active for ten minutes, our heart rate would increase by 300 beats per minute. To complete this experiment we needed to take our resting heart rate then go out and exercise for ten minutes and take our exercise heart rate.

Some photos of us running over four days.

Taking resting heart rates CarotidRadial

Taking exercise heart rates

Our control group

By Ema-Rose and Alicia