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.
1 Running as fast as you can for a short period of time builds up your muscles and helps you gain endurance. 2  Mix up your long running sessions with sprinting days. 3  Use a stopwatch to time yourself. 4  Start by sprinting as fast as you can for a quarter mile; do this 4-6 times.