peptide hormones (pepËÂ·tÄ«d hÅrËÂ·mÅnz) , n.pl water-soluble hormones comprised of a few amino acids that introduce a series of chemical reactions to change the cell's metabolism.eptide hormones (pepËÂ·tÄ«d hÅrËÂ·mÅnz) , n.pl water-soluble hormones comprised of a few amino acids that introduce a series of chemical reactions to change the cell's metabolism.
There are several muscles working when pitching. Starts of with the abductor muscles when striding. leg muscles such as the calf, quads and hamstring work when push of happens â¦ . then shoulder girdle, lats and biceps work as arms rotate.Core muscles work for rotation.2 people found this useful.onfidence votes 716. There are no muscles that are not in use. In pitching a softball, the body moves as a coordinated unit, and virtually every muscle is in play for some reason.
1 Working harder to throw: Softball pitchers do not have the benefit of a mound to generate velocity. 2  The landing leg undergoes a great deal of stress transmitting energy from the ground into the ball.3  This increases exposure of the landing hip and knee to wear and tear injuries such as early onset arthritis. Working harder to throw: Softball pitchers do not have the benefit of a mound to generate velocity. 2  The landing leg undergoes a great deal of stress transmitting energy from the ground into the ball.