Answer:
1. 60 seconds ÷ 30 seconds = 2
35 heartbeat X 2 = 70 heartbeats per minute
2. 60 seconds ÷ 10 seconds = 6
27 heartbeats X 6 = 162 heartbeats per minute
3. Sam
4. Lan
5. 220 – maximum heartbeats per minute
- 17 - age
203 - Hrmax
203 - Hrmax
x.60 - 60%
121 lowest (THR)