Ahmad Ali

reliable source of wise counsel

How much fat does 45 min gym burns

Here I am posting two occassions where I hit the gym. Simple small condo gym where rarely there are people using the equipment. So I have the weights and machines all to myself. No waiting for my turn. I will do the normal 3 sets of 8 reps. If set is heavy, I will still complete the 8 reps or more by switching to lesser weight. Resting time between sets is less than one minute.

Following are the records for Polar FT40.

17th Sept 2014

IMG_8440 IMG_8441 IMG_8442

Period 46 mins 02 secs
Heart Rate, Average 132
Calories 333 kcal
Fat % of the burnt calories 17%
Fat burn 14 mins 05 secs
Fitness 31 mins 48 secs











30th Sept 2014

IMG_8443 IMG_8444 IMG_8445

Period 45 mins 52 secs
Heart Rate, Average 132
Calories 335 kcal
Fat % of the burnt calories 16%
Fat burn 5 mins 32 secs
Fitness 40 mins 20 secs












Polar FT40 records shows almost same results except for amount of time spent on Fat Burn. A staggering difference of 10 minutes. I realised on 30th Sept that after I put down the weights, Polar FT40 switch to Fat Burn timing before it goes back to Fitness timing. There’s plenty to understand about how this works. Till I bother to look at the videos and explanations, I will continue to record results including recording while I was standing coaching for nearly 2 hours. Makes me think that whether I am wasting time running and gymning – if there’s such a word.


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