16 Training Heart Rate In order for exercise to be beneficia

16. Training Heart Rate

In order for exercise to be beneficial to the cardiovascular system, the heart rate (number of heart beats 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 rate (pulse rate when first awakening as follows:

(a) Calculate the maximun heart rate as 220 - age.
(b) Subtract the resting heart rate from the naximum 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 rate as input and display his or her THR. Must use user defined functions.

Solution

#include<stdio.h>
#include<stdlib.h>

float thr(int age, int rate);

int main(){
  
    int age=0;
    int rate=0;
    float t;
    printf(\"Enter the age\");
    scanf(\"%d\",&age);
    printf(\"Enter the resting heart rate\");
    scanf(\"%d\",&rate);
    t=thr(age,rate);  
    printf(\"The training heart rate =%f\ \",t);
  
  
}

float thr(age,rate){

    int maxhr, h, hr;
    maxhr=220-age;
    hr=maxhr-rate;
    h=(hr*0.6)+rate;
    return h;
  
}

Example:

Enter the age23
Enter the resting heart rate123
The training heart rate =167.000000

Enter the age34
Enter the resting heart rate90
The training heart rate =147.000000