Is it possible to burn so much kcal with weights ?

zigavajdic
zigavajdic Posts: 5
edited January 18 in Fitness and Exercise
Weight: 215 Ib
Height 6'7"
Bodyfat: 10-11%

Gear: Polar FT60 and Heart-rate monitor

Ok so today I bought myself a new fancy little watch for working out, the Polar FT60. According to reviews this is a pretty good kit for fitness and should be fairly accurate. Although I am very sceptical. Prior to working out the watch measured my apparently measured my VO2max levels, by measuring my heart rate when resting, and I scored 70 points, which is according to the watch the "elite ranking" meaning I am very well prepared (and this is true).

Ok so now to get on with the question. The whole workout took me 1h30min, first 25min were cardio running on a fairly fast tempo. Then I did my legs workout by Kris Gethin routine. At the end of the workout, the watch said I have burned a total of 1700kcal (When I stopped running it was 400kcal). Is it possible that so much kcal was burned during workout with weights? It seems unbelievable.

What do you think its more believable ?

Replies

  • Mokey41
    Mokey41 Posts: 5,769 Member
    HRM's aren't accurate for lifting because your HR isn't elevated enough. With lower heart rates the math is wrong.
  • ninerbuff
    ninerbuff Posts: 49,086 Member
    Easiest way to find out................eat 1700 calories in exercise calories and see if you're weight jumps for the next few days. If it does then chances are it's wrong.

    Realistically, HRM's aren't accurate at weight lifting because they just read heart rate and not actually calories burned. Two different types of muscle fibers being used (fast and slow) so the output for each is different when it comes to terms of energy usage.
    I would estimate that the average person on a good weight training program burns between 300-450 calories in an hour of weight training (intensity matters).

    A.C.E. Certified Personal/Group FitnessTrainer
    IDEA Fitness member
    Kickboxing Certified Instructor
    Been in fitness for 30 years and have studied kinesiology and nutrition
  • zigavajdic
    zigavajdic Posts: 5
    My heart rate (according to the watch) never went below 112, and was averaged 132 bpm. Variated between 110 and 160 depending on rest times. Is this still too low ?
  • vtmoon
    vtmoon Posts: 3,436 Member
    if average was 132 then definitely no.
  • zigavajdic
    zigavajdic Posts: 5
    Hmm then its best to just turn it off when finishing up with cardio ? I dont want to be mislead, or is there some equation with which I can help to regulate this calculations so they are not as disformed as they are. It would have been really good to know how much I burn through out my weight lifting routine, not only cardio
  • jcoco
    jcoco Posts: 138 Member
    I have found when I lift lower body being they are a larger muscle group, my heart rate is higher & is close to my THR. Lifting my upper body does not. I would believe it if you had limited amount of rest between sets & did lunges, squats, deadlifts, etc...
  • zigavajdic
    zigavajdic Posts: 5
    Thank you, I will pm him and see what magic he can perform :D
  • DavPul
    DavPul Posts: 61,406 Member
    Why do people buy hrms and then question the numbers?
  • taso42
    taso42 Posts: 8,980 Member
    This isn't really answering your question, but ever since I ditched my HRM I've been a much more productive person. Who cares.. we don't lift weights for the calorie burn of it.
  • Lyadeia
    Lyadeia Posts: 4,603 Member
    Why do people buy hrms and then question the numbers?

    I agree with this.

    I bought my HRM which syncs to my phone through bluetooth and the endomondo app so I wouldn't have to question the numbers anymore. Of course it isn't 100% accurate, but it's a hell of a lot closer to reality than website estimations were given me. I say this because the numbers I get now are more closely related to the numbers expected on paper in terms of fat loss than before when I was guessing.
  • zigavajdic
    zigavajdic Posts: 5
    OK let me rephrase this question. Can I use the HRM when doing weight training and still rely on the numbers, or are they only good for running, cycling etc. It means a lot, because I count everything I eat, to know, if the numbers are ok.
This discussion has been closed.

Categories