More formally, chiroplasty, or cheiroplasty, is a term which refers to plastic surgery of the hands. The term combines root word chir(o), which means hand, and the suffix -plasty, which means surgical repair.
(How Do Your Muscles Work continued) Thousands of thin spaghetti-like fibers make up muscle tissue. These fibers receive messages from the brain, causing the fibers to contract. The main muscles at work in cycling are the quadriceps and hamstrings in the upper leg, and the gastrocnemius and soleus in the calf. These muscles contract in a sequence that creates the pedaling action. The quadriceps and hamstrings do most of the work when you ride a bicycle.
The Tour de France Diet: How to Consume 8,000 Calories a Day. Cyclists on the Tour de France need to consume some 8,000 a day to keep weight. At rest, we all burn roughly 90 calories an hour, or a little more than 2,100 a day. Run at full-tilt on a treadmill for an hour, and you'll burn some 600 â although most of us can keep it up for half of that time. Ride in major cycling race like the USA Pro Challenge or Tour de France, on the other hand, and you'll find yourself burning a whopping 1,000 calories per hour â for four hours a day.