if u cycle everyday at the rate of 15 km/hr for 20 mins,how much cal would u burn? Or wat is the minimum time u shud cycle and average speed?
205633
Well you will have to do it longer than 20min.  It usually takes at least 20min to start burring fat.  For the first 20 you are just burning off glucose.  Once that goes, then you start burning fat.  The hard part is that tummy fat is usually that last place the body will take fat to burn off.  that's why you see a lot of people with skinny legs and fat middles.  So the longer you ride past 20min the more fat you will burn.  Also, it is ideal to keep your heart rate above 120 for at least 20 min.
313560
your body naturally burns between 1500=2000 calories a day without exercise. eat less than that or burn off the extra cals with exercise.
488574
You are improving your cardiovascular system (heart, blood pressure etc.).  It is strengthening your legs.  150 per minute should be sufficient.  It depends on your age and general condition though.\n\nAs to once every two days, you can cycle every day if you want, you don't have to take a day off.  You probably want to vary your routine though by doing some other exercises.  Even basis ones like push-ups and sit-ups.\n\nHave fun.
77415
how much is your free time worth to you?  that's an extra 25-30 minutes a day, for about an extra $20 a day.  \nAlso, how much extra will commuting cost you, in terms of gas and wear and tear on your car?
59117
Burn more calories than you consume. It's a very simple equation, really.\n\nExercise helps burn calories.\n\nEat less, exercise more.
205292
If you are trying to lose fat, you want both a low fat and low cal diet. Don't count on losing weight if you exercise though because you are likly to put on more pounds than you lose. \n\nIt takes around 500 calories to burn off one pound of fat, but fat is the last reserve of your body, so it takes a lot to get to it. \n\nTo get an estimate of how much you burn each day, consider that if you did nothing but sit, with some minimal walking, you would burn about 2000 calories. If you do the same thing, except for getting about 2 hours of heavy exercise, you'll burn about 3000 calories. You need about 2500 calories a day to avoid being hungery and to stay healthy.\n\nSo, a smart diet (around 2500 calories), and more than an hour of exercise daily, and you should slowly start seeing a difference. Don't expect it to go fast though. It takes about 3 months for your body to adjust to major changes in diet and exercise, and get to peak preformance.
451479
1500 burn 500(try biking for like 30 minutes to burn 500)
572173
You use almost exactly 15 calories per pound per day.  This is a really good estimate for you.\n\nIf you're very very active, maybe almost 20.\n\nIf you're a complete, and I mean complete, couch potato, about 10.
670168
1,200 calories= 1lb pound. Only you can figure the rest out. You have to add all of the calories you eat in a day and figure it out. How many do you have to burn?  check out this site\n\nhttp://www.nestle.ca/en/Enjoy_Life/Active_Zone/Burning_Calories/Burning_Calories.htm
206763
from what i heard, its the total calories that matter not the intensity, say you for example can do 10km per hour for 15 mins but you only burn 120calories, but jog at 5-7 km per hr and yet you consume a200 calories that is better than the former. \n\nAlso take note of alternating cardio high and low intensity for example 30 second to 1 min full speed then jog, then repeat till you can't do anymore hehe...\n\nlastly, do weight training it may take long but once you build the muscles it burns fat 24/7 i think I've read that a 250 calorie choco bar will automatically melt if you have 5 pounds of lean mass which burns off an deficit 250 plus calories from your maintaining calorie intake... this is kinda long but i think you get the idea hehe hope this helps
241768
not at all, just stretch and drink a bottle of water or two before you start. pace yourself and enjoy. biking for i belive one hour burns about 600 calories it's great excercise and it's great when gas costs 3 bucks a gallon.
476628
I do 25 mins on the treadmill at a speed of 8kph. This burns 300 calories which I think is good enough.
291283
That is correct.  The higher your heart rate, the more calories you burn.  You can buy a heart rate monitor to track your progress.  As your body gets accustomed to the cardio workouts, you may need to exert more effort to get to the same heart rate.\n\nYou should exercise up to 70-80% of your maximum heart rate.
80842
I see that number, "3500 calories in 1 lb of fat" in several sources, but I am not sure whether that is calories or Calories.  Most people are sloppy about the distinction, so I am guessing they really mean there are 3,500,000 calories per pound of fat.\n\n1 calorie = 4.184 Joules.\n\n60 minutes in an hour, 60 seconds in a minute.
39489
A would take 22 minutes to get to 15 miles and 32 minutes to get to 20 miles. Unfortunately, there's insufficient information to be precise on B's journey. Did he spin off before the start?.. or at which point en route? Guessing it, I would say A arrived at 15 miles and at the 20 miles point first. NB. I have had to make certain assumptions in your question to arrive at this answer (eg I asumed A slows down to 40mph after 4 miles?)
51513
It will take you 10 hours. \n\nIf you ride only 2 km ever hour, then after one hour you will be 2 km closer to your destination. Take 20 and divide it by 2, and that gives you 10 hours. \n\nIt doesn't matter for your question, but that's a pretty slow bike! A person could walk faster than that.
41193
Both! You may consume less than 20g of carb a day but that's not gonna help you lose weight if you're taking in, say, 2000 kcal?