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59 votes
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Is commuting 10 km on an empty stomach harmful?

As far as I can tell, no. I've been riding 30 minutes or more every workday before breakfast for more than 10 years with no detectable ill effects. When I was riding an hour to work I'd sometimes have ...
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29 votes
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Tips for cycling while pregnant, and is it safe?

This would have to be one of the most opinion-based questions we could possibly have, and one of the most important to deal with in a sensible manner. Firstly, it must be said that what is safe ...
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  • 17.1k
25 votes
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Might biking lower forehead temp readings at destination?

The body controls its core temperature, not the skin temperature. Skin temperatures will vary significantly, to the point they are generally considered an unreliable way to measure core temperature, ...
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  • 40.1k
24 votes
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I get dizzy when I dismount. Causes?

It sounds like you over-exerted yourself and "bonked" – your body ran out of sugar so you fainted. In that case, you reduce the risk by eating more while you ride* and by listening to your ...
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20 votes

Is commuting 10 km on an empty stomach harmful?

The myosin heads of muscle fibres move using the energy produced by converting ATP to ADP. The energy extracted is about 30.5 kJ/mol of ATP. Muscle tissue has limited ATP storage. Your muscles' ...
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19 votes
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How to decrease belly fat while cycling?

You cannot outride (or outrun or out-any-other-exercise) a bad diet. On top of that, decades of research shows it's impossible to "spot-reduce". Your options are: Eat some combination of food that ...
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  • 15.9k
19 votes

How can I learn cycling with polio in my right leg?

I think the consensus in recent years has been to not use any kind of training wheels when learning to ride a bike. For young children there are balance bikes which don’t have any pedals or drivetrain ...
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  • 19.7k
18 votes

Stiff but short daily commute leading to "heavy" legs

How hard do you ride? If you ride hard and in hard gears it could be that your legs are accumulating fatigue and simply don’t have enough time to recover from one day to the next even though it’s only ...
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  • 19.7k
16 votes

Tips for cycling while pregnant, and is it safe?

Unlike riding horses, there are no body movements that are dangerous for pregnant cyclists in any stage of pregnancy when riding on roads. Mountain cycling is not as safe and I would certainly talk ...
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  • 3,264
15 votes
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What are the disadvantages of bicycle saddles with cut-outs?

The primary consideration in finding a saddle is how well it suits your sit bone shape and groin tissue. Some people do best with saddles that have massive cutouts (heck, even those ones that look U ...
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  • 10.9k
14 votes
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Long term benefits and risks of bicycling

Long term benefits ... Hmmm ... does 55 years count as long term? If so, I think I and a few others here qualify ... Key benefits Cycling is a life-long form of exercise. One of the group I meet for ...
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  • 17.1k
14 votes

How to avoid the road bike physique

This would be a great problem to have for most of us roadies. Simply eat more if you find yourself losing more weight than you care to lose. You can alternatively balance with more strength based ...
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  • 1,303
13 votes

How much of a difference does giving blood make to recreational cycling?

If you are riding near your aerobic limit you'll definitely discover that you've lost aerobic capacity during the next 12-24 hours. It can take that long to replace the red blood cells you've lost. ...
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  • 17.1k
13 votes

Is commuting 10 km on an empty stomach harmful?

Here in the UK on BBC TV last night was a program 'Trust me I'm a Doctor' in which they examined the effect of exercise in men and women and whether to eat before exercising or after. On average most ...
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  • 131
13 votes

What's the proper science-driven way to treat mild scrapes/abrasions (that have a bit of dirt in them) from a mountain biking crash?

Briefly, a quick rinse with clean water, and possibly dressing it, are probably all you need to do on the trail. This assumes a day visit to a typical trail centre or cross country riding near to ...
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  • 46.3k
12 votes
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Daily commuter - stamina got worse after saddle height adjustment

A change of saddle height won't change your stamina. 'Stamina' is a crude term that reflects many processes within the body which contribute to powering the bike forward. At a very basic level, we ...
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  • 14.6k
11 votes
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How much of a difference does giving blood make to recreational cycling?

Depends on exercise intensity. In a day or two you can return to your normal/moderate exercise. A complete recovery of oxygen delivery can take as much as 3/4 weeks. This means a professional athlete ...
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  • 1,290
11 votes

cyclist's palsy: how long does it last

"Cyclist's Palsy" shouldn't happen at all. Find someone competent to help you fit your bike. My first suggestion is the nose of your saddle it too low causing you to lean forward and put ...
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11 votes
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Does a build-up of CO2 in the lungs make you out of breath?

This is a huge topic. It is true that the breathing reflex is controlled by CO2 in your body (not just in the lungs). The key is the acidity of the cerebrospinal fluid. If you reduce your CO2 level, ...
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11 votes

What are the disadvantages of bicycle saddles with cut-outs?

Saddles are the most personal contact point on the bike. If you prefer a cutout, or specifically don't like cutouts, then you have the option of either. Gender and differences come into it as well, ...
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  • 99.3k
10 votes
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How do you keep from coasting too much on a bicycle?

You are correct - keeping the bike in the appropriate gear is important. Generally, you should have a preferred pedaling rpm, or cadence that you try to keep constant. Change to lower gears on uphill ...
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10 votes

False hrm results

Try replacing the battery, it could be running flat. Make sure you're getting proper contact with your HRM to your chest - try adding some conductive gel. Try a different soft strap, they wear out ...
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  • 1,285
10 votes

How can I learn cycling with polio in my right leg?

In many countries there are groups that have an interest in helping people with disabilities get into cycling - e.g. https://wheelsforwellbeing.org.uk/ . I would suggest such an organization if you ...
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  • 40.1k
9 votes
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Minor but persistent saddle sore - Safe to continue riding?

I'd perhaps look at your saddle again. Padding isn't everything and there is a lot to be said for fit/sit bone width. Consider getting measured/fitted. I know what width fits me in the brand I buy. ...
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  • 9,858
9 votes

Stiff but short daily commute leading to "heavy" legs

Find an alternate route When commuting, we tend to gravitate to the shortest route, which is rarely the most fun or picturesque. You know you can ride 4.5 km, so look out for some 5-8 km routes. ...
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  • 99.3k
9 votes

Might biking lower forehead temp readings at destination?

One factor could be the lower emissivity of sweat compared to human skin. At a given temperature, different materials emit different amounts of infrared radiation for the thermometer to detect. Skin ...
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8 votes

best ride to burn tummy fat

You can't really burn "tummy fat." Your body has an order that it will store fat in and it will lose fat in the reverse order. You can lose bodyfat, but it goes away in the reverse order that you ...
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  • 490
8 votes

What is the best way to track your mileage, routes and calories burned?

There are several phone apps / web sites you can use. They all have a free mode and a premium mode. A few of them are: Endomondo Last time I used this (a couple of years back) it was able to give ...
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  • 17.1k
8 votes

Is 32km possible to ride with my body condition?

32km per day is a lot for some one who is out of shape. I added the [commuter] tag to your post. If you click on it, you'll see hundreds of posts about commuting. Some are like this one, so your ...
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  • 17.1k
8 votes

Is commuting 10 km on an empty stomach harmful?

I've been reading a couple of questions on weight loss lately, and cycling or jogging before breakfast was one of the tips. The justification is it kick starts the body's metabolism into "make energy"...
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  • 99.3k

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