65 kg person runs outside at 7 mph for 30 min how many calories did they burn? A

Question

65 kg person runs outside at 7 mph for 30 min how many calories did they burn? At this rate, how many minutes would it take them burn one pound of fat? Assuming they performed these 30 min sessions every day AND cut 300 calories/day from their diet, how long would it take them to burn one pound of fat? 65 kg person runs outside at 7 mph for 30 min how many calories did they burn? At this rate, how many minutes would it take them burn one pound of fat? Assuming they performed these 30 min sessions every day AND cut 300 calories/day from their diet, how long would it take them to burn one pound of fat?

Explanation / Answer

Hi,

WEIGHT = 65KG
SPEED = 7 MPH
TIME = 30 MIN
Calories Burned (kcal) = METs x (WEIGHT_IN_KILOGRAM) x (DURATION_IN_HOUR)
MET for 7 mph running is 11
Calories = 11 x 65 x (0.5)
              = 357.7 Calories

1 pound of fat generally yields 3500 Calories. The person here is burning 357 Calories in 30 min (0.5 h). So to burn 3500 he needs, how many minutes?
= (0.5) x 3500 / 357
= 4.9 h; He would take 4.9 h of running at this speed to burn Calories from 1 pound of fat.

30 min sessions every day = 357 Calories burnt / day
300 Calories/day cut from the diet
So total Calories burnt/cut = 357 + 300 = 657 Calories / day
To burn 1 pound of fat we need to cut a total of 3500 Calories
So, how long would it take?
= 3500 / 657
= 5.47 days.

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