core muscles, which have a major impact on your running technique.Ralph HydesRalph Hydes is a running, duathlon and triathlon coach. He has helped many athletes reach international-level competition and has been the trainer to corporate teams
the shoulders, which often happens due to fatigue. Look forwards and relax the shoulders; if you feel yourself starting to crumple, do some arm circles to stretch out the shoulder girdle. More abdominal work and improvements in running technique should help
