16. Training Heart Rate in order for exercise to be beneficial to the cardiovasc

Question

16. Training Heart Rate in order for exercise to be beneficial to the cardiovascular system, the heart rate (number of heart heats per minute) must exceed a value called the training heart rate, THR. A person's THR can be calculated from his or her age and resting heart rare (pulse rate when first awakening) as follows: (a) Calculate the maximum heart rate as 220 - age. (b) Subtract the resting heart rate from the maximum heart rate. (c) Multiply the result in step (b) by 60%, and then add the resting heart rate. Write a program to request a person's age and resting heart rare as input and display his or her THR. See Fig. 5.6.

Explanation / Answer

The programming language is not mentioned, So I would use JAVA to perform this task and the logic will be same for all other languages. The program is a command line program without any GUI

Here is the JAVA Code with comments

import java.util.*;
class THR
{
   public static void main(String args[])
   {
       int age;
       double resting_heart_rate;
       double thr;
      
       Scanner scan=new Scanner(System.in);
       System.out.println("Please Enter age");
       age=scan.nextInt();
      
       System.out.println("Please Enter Resting Heart Rate");
       resting_heart_rate=scan.nextInt();
      
       int max_hr=220-age;           // Step a
       double x=max_hr-resting_heart_rate;     // Step b
      
       x=0.6*x;                             // Step c Calculate 60% of x
      
       thr=x+resting_heart_rate;
      
       System.out.println("Your THR is "+ thr);
      
   }
}

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.