There are literally countless types of anabolic steroids and of these while most are of an injectable nature many anabolic steroids only come in tablet form; however, there are some anabolics that come both in pill and injectable form but the majority possess one form and one form only.
Fitness enthusiasts and novices alike appreciate bike riding for its fun and fast exercise benefits. Regular cyclists gain both speed and strength because biking requires both muscular and cardiovascular endurance. In general, cycling utilizes primarily the lower body muscles, but the core and arm muscles are also used. The quadriceps, hamstrings, calf and gluteus muscles perform the bulk of the biker's work.
According to www.ultracycling.com, the primary muscles used in biking are the gluteal muscles, quadriceps, hamstrings and calf muscles. The quadriceps are the large muscles on the front of the thigh that are responsible for straightening the leg and pushing the pedal down towards the ground.