Average Salary. Welders in the United States made an average annual salary of $37,920, according to the BLS. The middle 50 percent earned between $29,370 and $44,410 per year. The lowest 10 percent made less than $24,490. Pipefitters earned an average yearly salary of $51,830.
Calf Muscles. The muscles of your calves, the soleus and gastrocnemius, are both involved in sprinting. The gastrocnemius is the larger of the two muscles and assists in bending your knee.Additionally, the gastrocnemius as well as the soleus act to produce plantarflexion, which causes your foot to point away from your body.alf Muscles. The muscles of your calves, the soleus and gastrocnemius, are both involved in sprinting. The gastrocnemius is the larger of the two muscles and assists in bending your knee.
Running takes your legs through a large range of motion, working them from top to bottom. The quadriceps in the front of your thighs work to stabilize your legs and propel you forward, while the hamstrings in the back of your legs bring your legs back and up as part of your stride. Moving these large muscle groups quickly while running helps raise your heart rate.