14 DAY TRIAL // The emergence of the mountain bikes filled the roads with those addicted to this sport.
A mountain bike is very handy for exercising, even if one rides it more often on the roads than mountains. The best bikes for sporting are those with intermediary wheels, which provide an easy movement on the asphalt.
Bike riding is a stealth exercise, which covers from a relaxed ride to sophisticated training. As a ride, biking gives a good shape and power for the legs, strengthens the ligaments, articulations and tendons. It helps slimming: a person of 75 kg (190 pounds) will waste 660 kcal/hour at a speed of 25-30 km (15-19 mi)/hour. (trained people consume less) and is a very good exercise for the heart. At this velocity, you pedal 4,000 times/hour, your heath pumps about 1,000 blood liters and your lungs about 4,800 air liters.
Pedaling also strengthens the cervical and lumbar. As this is a rhythmic exercise, if the bike does not fit your measure, it can overload the knees, the Achille's tendon and the spine.
Bike riding is also not recommended for stoop-shouldered persons, those with hip arthrosis, kneecap arthrosis; there is also a risk for persons with heart diseases and hypertension: this is one of the sports that more dilates the heart, and these persons, if they exaggerate, can experience ischemia or heart lesions, translated into heart attack.
You must climb on a bike only if it has a typical bike chair. Remember, you always have to carry a bottle of water or isotonic liquids. If you pedal for more than two hours, take with you some fruit or energetic bar. Always wear a helmet, even if it is about short tracts. The chair must be adjusted. It will be lowered when you climb a slope. When not trained, first ride twice or thrice weekly, for 30 minutes on plain terrain. After that, you can try sessions of 90 minutes up to 120 minutes.