Too much cardio?

Some background - I'm 52, 6' tall and weigh in at 268 pds. According to MFP, I'm allowed 1650 calories a day to lose 2pds a week. I work at a desk all day and I've recently moved to a bike desk - I have setup my road bike on a trainer and built a desk around it. On average I do about 50-60miles a week with somedays 30miles. I'm not going all out - 17mph - but on a trainer if you are not peddling you are not moving. I've noticed that I'm not losing any weight and am totally confused. I feel better both physically and mentally and I'm eating about 2000-2500 calories on the days I bike (I burn at least 800 calories when I do bike and somedays over 2000 i.e. when I do 30 miles) but every time I weigh myself the scale does not budge.

I'm totally confused about when to do strength training and/vs. cardio to lose weight. Maybe someone out there could explain to me what I need to do.

Replies

  • You might be building more muscle with all that cycling!!
    If you are feeling better mentally and physically then that is GREAT!!!
  • Hellbent_Heidi
    Hellbent_Heidi Posts: 3,669 Member
    Its unlikely you're building a enough muscle from biking to offset any significant fat loss.

    How long have you been at this? Maybe you just need to give it time to work.

    Another possibilty is that your diet isn't as good as you think. Do you measure everything out or could you be eating more calories than you're logging? Eating a lot of sodium?
  • Achrya
    Achrya Posts: 16,913 Member
    You're eating too much. Cut the exercise calories in half, make sure your log is accurate (weigh food in ounces or grams, measure liquids). Give it another 4 weeks. If you still aren't losing (which would surprise me...) tweak it again.


    You are not building muscle while eating at a deficit, BTW. I wish people would stop saying that.
  • _Zardoz_
    _Zardoz_ Posts: 3,987 Member
    You're eating too much. Cut the exercise calories in half, make sure your log is accurate (weigh food in ounces or grams, measure liquids). Give it another 4 weeks. If you still aren't losing (which would surprise me...) tweak it again.


    You are not building muscle while eating at a deficit, BTW. I wish people would stop saying that.
    This
  • LishieFruit89
    LishieFruit89 Posts: 1,956 Member
    You might be building more muscle with all that cycling!!
    If you are feeling better mentally and physically then that is GREAT!!!

    LOL NO.

    Listen to Achrya's advice
  • DavPul
    DavPul Posts: 61,406 Member
    Soooooo.....how many days have we been at this?
  • toddis
    toddis Posts: 941 Member

    You are not building muscle while eating at a deficit, BTW. I wish people would stop saying that.

    But if you are new to training your body will retain fluids and such gunk that will increase mass and weight.
  • Achrya
    Achrya Posts: 16,913 Member

    You are not building muscle while eating at a deficit, BTW. I wish people would stop saying that.

    But if you are new to training your body will retain fluids and such gunk that will increase mass and weight.

    This guy isn't new to training, he's had his bike desk since at least September. Soooooo...thanks?
  • DavPul
    DavPul Posts: 61,406 Member
    Where are we getting the dates and time frames from? Is it in the appendix? I'm exhausted so I could be missing it.
  • Achrya
    Achrya Posts: 16,913 Member
    Where are we getting the dates and time frames from? Is it in the appendix? I'm exhausted so I could be missing it.

    I'm history creeping...don't judge me. Its 3am and I'm wide awake, nothing else to do.

    Anyway OP claimed to have biked 375 miles in September.
  • erickirb
    erickirb Posts: 12,294 Member
    How are you calculating calories burned?
    Do you weight all your solid foods and measure liquids? If not you may be eating 10-50% more than you think you are.
  • LishieFruit89
    LishieFruit89 Posts: 1,956 Member

    You are not building muscle while eating at a deficit, BTW. I wish people would stop saying that.

    But if you are new to training your body will retain fluids and such gunk that will increase mass and weight.


    Gunk....
    How scientific
  • jirwin323
    jirwin323 Posts: 40 Member
    I started using the bike desk in September 2013 and between then and end of November I've lost 20 pounds. But since that point I've been stuck at 268.

    I do monitor my food intake using MFP, but not regularly or to the extent some of the users do.

    I'm just interested in understanding the relationship between lots of cardio and weight loss. There seems to be a lot of information out there that says "do cardio and eat less" and other information that says "NO cardio and eat less". Maybe I'm just over thinking this.
  • erickirb
    erickirb Posts: 12,294 Member
    I started using the bike desk in September 2013 and between then and end of November I've lost 20 pounds. But since that point I've been stuck at 268.

    I do monitor my food intake using MFP, but not regularly or to the extent some of the users do.

    I'm just interested in understanding the relationship between lots of cardio and weight loss. There seems to be a lot of information out there that says "do cardio and eat less" and other information that says "NO cardio and eat less". Maybe I'm just over thinking this.

    A deficit = weight loss, cardio or no cardio.

    Cardio allows you to eat more while still being in a deficit, or gives you a larger deficit (larger isn't always better). The only issue with lots of cardio, is it will not help retain lean muscle as you lose weight, so a larger % of your loss will come from lean muscle than if you program consisted mainly of strength training.
  • JoRocka
    JoRocka Posts: 17,525 Member
    most people OVER estimate calories burned- and grossly under estimate calories eaten.

    So there are two ways to combat this- one be ultra conservative on work out numbers and more generous with food stuff- meaning guess higher. This is usually enough to sway the battle in the right direction and only doesn't work as you get lower in the body fat range- like for men low teens/single digits and women mid/low teens.

    Otherwise- averages makes it work so the trend continues down.

    The other way to do it is to only eat back a % of exercise calories. I typically shoot for 50-75% of my exercise calories.

    Again- trend lines and averages win- not day to day numbers.
  • Azdak
    Azdak Posts: 8,281 Member
    most people OVER estimate calories burned- and grossly under estimate calories eaten.

    So there are two ways to combat this- one be ultra conservative on work out numbers and more generous with food stuff- meaning guess higher. This is usually enough to sway the battle in the right direction and only doesn't work as you get lower in the body fat range- like for men low teens/single digits and women mid/low teens.

    Otherwise- averages makes it work so the trend continues down.

    The other way to do it is to only eat back a % of exercise calories. I typically shoot for 50-75% of my exercise calories.

    Again- trend lines and averages win- not day to day numbers.

    Your first sentence has about a 95% probability IMO. It certainly is the first thing you would consider.

    I am dubious about the long-term effectiveness of these "active" work stations. I don't see how you can do effective exercise while working, so that means the movement has to be low-level. It's not that the body "gets used" to the activity and stops burning extra calories. It's that the overall energy burned is relatively low and gradual, so the person tends to adjust their overall food and activity patterns to restore an energy balance.
  • johntconklin
    johntconklin Posts: 2 Member
    I have setup my road bike on a trainer and built a desk around it. On average I do about 50-60miles a week with somedays 30miles. I'm not going all out - 17mph - but on a trainer if you are not peddling you are not moving. I've noticed that I'm not losing any weight and am totally confused. I feel better both physically and mentally and I'm eating about 2000-2500 calories on the days I bike (I burn at least 800 calories when I do bike and somedays over 2000 i.e. when I do 30 miles)

    I think you're totally overestimating calories burned.

    On my Kurt Kinetic Road Machine trainer, 17mph is about 180W (calculated by their published power curve formula and verified by my power tap). 180W is 660 kJ/hour, which I convert to Calories at par assuming 20-25% bio-mechanical efficiency. So with my trainer, a 30 mile day at 17mph would be less than 1200 Cal.

    One nice feature of a indoor trainer with a known power curve is that you can get a much better estimate of Calories burned compared with the typical gym machine. What trainer are you using?
  • jirwin323
    jirwin323 Posts: 40 Member
    I'm using a CycleOps and in conjunction with my Garmin Forerunner 305, I have installed the Garmin Cadence Sensor and am using the heart monitor. According to the Forerunner, I burn about 440 calories per 5 miles biked at approximately 17mph.
  • johntconklin
    johntconklin Posts: 2 Member
    I'm using a CycleOps and in conjunction with my Garmin Forerunner 305, I have installed the Garmin Cadence Sensor and am using the heart monitor. According to the Forerunner, I burn about 440 calories per 5 miles biked at approximately 17mph.

    CycleOps doesn't publish a power curve formula for their trainers, but they do publish a graph; and folks have taken the power at different constant speeds and fit an equation to the data. For example, The formula "p = ((0.0115*s^3) - (0.0137*s^2) + (8.9788*s))" is claimed to convert power in watts from speed in miles/hour for the Fluid2 trainer (from http://thebikegeek.blogspot.com/2009/12/while-we-wait-for-better-and-better.html).

    This is about 205W for 17 miles/hour, or around 740 kJ/hour. A bit higher than my Kinetic, but still ends up with only around 1300 Calories for a 30 mile effort.

    Since you have the Cadence/Speed sensor, I'd strongly recommend converting your average speed to power, power to energy in kJ, and then using that as a Calories burned instead of the Forerunner estimate. Before I bought my power tap, I used a Garmin Edge 305 in exactly this way. I found that the Edge's own Calorie computation to grossly over-estimate.
  • jirwin323
    jirwin323 Posts: 40 Member
    thank you. what's funny is if you go into MFP and record BIKING 14-16MPH for 120mins - for me it determines I have burned 2411 calories which is inline with the Garmin.

    I guess I'll just cut all exercise calories in 1/2.
  • JoRocka
    JoRocka Posts: 17,525 Member
    Your first sentence has about a 95% probability IMO. It certainly is the first thing you would consider.

    I am dubious about the long-term effectiveness of these "active" work stations. I don't see how you can do effective exercise while working, so that means the movement has to be low-level. It's not that the body "gets used" to the activity and stops burning extra calories. It's that the overall energy burned is relatively low and gradual, so the person tends to adjust their overall food and activity patterns to restore an energy balance.

    I see the advantage of that not in terms of exercises. i could absolutely see the body adjusting to that happy medium of being It's not about exercise necessarily (to me) it has more to do with getting out of the "sedentary" cubicle 8 hrs a day life style.

    Studies have shown that even if you are exceptionally fit and active- if you work 8 hrs a day at a desk- it's wildly unhealthy and your 2 hrs a day at the gym isn't' going to "combat" or counter those negative side affects.

    So to me- it's worth having because it helps get away from that- I would never use it as regular workout- it's not feasible and doesn't get me where I want to go- I'd use it more to get away from those negative sedentary side affects.

    But yes- I would agree- I would get away from the idea it's a part of an exercise program.
  • H_Factor
    H_Factor Posts: 1,722 Member
    Are you using a HRM to determine calories burned or MFP *estimates? MFP estimates are usually way off because they can't factor in effort during the workout. If you're relying on MFP estimates for biking, I wouldn't eat back more than 25% of the calories it claims you burned. If you're using a HRM for biking, I wouldn't eat back more than 50% of the calories it claims you burned.

    Are you drinking 12-16 cups of water? If not, aim for 16 and be okay with 12.
  • I'm using a CycleOps and in conjunction with my Garmin Forerunner 305, I have installed the Garmin Cadence Sensor and am using the heart monitor. According to the Forerunner, I burn about 440 calories per 5 miles biked at approximately 17mph.

    440 seems really high to me. I have a stationary bike and if i ride it at 17mph, even on a really high level, i only burn about 150 for the 1/2 hour and thats also 5 miles. i dont use an HRM but 440 still seems too high, just my opinion
  • zanne54
    zanne54 Posts: 336 Member
    2 things happened to me: I'll share them with you, but YMMV.

    #1 MFP's algorithms set my daily calories too low. I was under-eating at 1200 calories, at 5'8" and 186 lbs. My hair started to fall out. I followed the instructions to determine my BMR and TDEE here: http://www.myfitnesspal.com/topics/show/975025-in-place-of-a-road-map-short-n-sweet?hl=road+map And I set myself TDEE - 20%, and came up with 1560 calories. I used "sedentary" for my activity level, and I eat back 50-75% of my exercise calories. My hair stopped falling out and the weight started to come off. If I were you, I would either reduce your goal to 1 lb per week, or do the math to figure out your BMR/TDEE.

    #2 Booze. I can't access your diary to see if you're drinker or not. When I first started MFP, I had cut my drinking back, but was still enjoying a few a couple times a week, and I was still losing weight. Come summer when I was outside more and more active, I was burning a ton of calories, and then drinking them back. I mistakenly thought "a calorie is a calorie". Nope. Apparently, when your body is too busy processing alcohol, it can't multitask and burn fat simultaneously. (Google alcohol & weight loss for a better explanation that I can give here). Once I cut my drinking back even more, the weight started melting off again.

    Hope this helps, and if it's irrelevant to your situation, just ignore. Good luck!
  • jirwin323
    jirwin323 Posts: 40 Member
    thank you for so much good information. Now that you mention it, I do have a few drinks everynight of scotch, and I had thought of it as a calorie is a calorie - I just did the google on the subject and after this bottle is done, no more for me.

    Thank you again.
  • The more muscle you have, the more calories you will burn all day long. I am 50 and have been lifting weights for 18 years. Resistance training is critical for boosting metabolism, burning fat and helps prevent bone loss. Plus, it makes you look and feel even better. I would incorporate at least 2-3 30 minute sessions per week and then work up from there. Go easy and good luck!