Pupil sheet · Exercise and heart health

Exercise and heart health — final check

Name ______________________ Date ____________

Work alone, with the lesson closed. Answer every question; there are no hints.

1. state / calculate

(a) State three ways of monitoring the activity of the heart. (b) A resting heart rate is 90 beats per minute. Calculate how many beats would be counted in 10 seconds.

(a) Three ways

(b) Beats in 10 seconds

2. calculate

An ECG strip has 7 tall spikes. The first is at 0.4 s and the last is at 5.6 s. Calculate the heart rate in beats per minute. Give your answer to the nearest whole number.

Heart rate (beats per minute): ______________ unit ________

3. describe / state

(a) The figure compares one person's step test before and after ten weeks of training. Describe two differences in the heart rate after the ten weeks. Use data from the graph. (b) Another pupil compares her heart rate on an exercise bike before and after a term of swimming lessons. State two things she must keep the same in the two bike tests.

Graph of the same person doing the same step test before and after ten weeks of training. Horizontal axis: time, 0 to 12 minutes, ticks every 1 minute. Vertical axis: heart rate, 40 to 160 beats per minute, labels every 20 and gridlines every 10. Stepping is shaded from 1 to 4 minutes. Lines show the sensor during stepping only; dots show pulse counts measured for 15 seconds and multiplied by 4. Before, solid line and solid dots: resting dot at 0 minutes, 76. Sensor values at 1, 1.5, 2, 2.5, 3, 3.5 and 4 minutes: 76, 121.2, 140.9, 149.4, 153.1, 154.8 and 155.5 beats per minute. Pulse dots at 4, 5, 6, 7, 8, 9, 10 and 11 minutes: 148, 116, 100, 88, 84, 80, 80 and 76. After ten weeks of training, blue dashed line and hollow dots: resting dot at 0 minutes, 56. Sensor values at 1, 1.5, 2, 2.5, 3, 3.5 and 4 minutes: 56, 99.5, 118.5, 126.7, 130.3, 131.8 and 132.5 beats per minute. Pulse dots at 4, 5, 6 and 7 minutes: 120, 76, 60 and 56.

(a) Two differences

(b) Two things kept the same

4. explain

Supplement. A rower's heart rate rises from 60 to 170 beats per minute during a hard race. Five minutes after the race it is still 110. (a) Explain why the heart rate rises during the race. (b) Explain why it is still raised five minutes later.

(a) Why it rises

(b) Why it stays raised

5. describe / state

(a) Describe coronary heart disease. (b) State four possible risk factors for coronary heart disease.

(a) Coronary heart disease

(b) Four risk factors

6. suggest / identify / explain

Mr Osei is 58. He smokes, adds a lot of salt to his food, eats fatty meat and butter every day and takes no exercise. (a) Suggest two changes to his diet or exercise, and explain how each one lowers his risk of coronary heart disease. (b) Identify one risk factor in his profile that he cannot change. (c) Explain why these changes cannot remove his risk completely.

(a) Two changes and how they help

(b) A risk factor he cannot change