I believe all parts of the swimming stroke have to work together to make a complete efficient swim stroke. The legs must work with the arm stroke, breathing has to work with our leg action and arm action. The core muscles are working with the extremity muscles.
Synergy??
George -
According to Websters', you hit the nail on the head:
syn⋅er⋅gy
–noun, plural -gies. 1.combined action or functioning; synergism.2.the cooperative action of two or more muscles, nerves, or the like.3.the cooperative action of two or more stimuli or drugs.
Origin:
1650–60;
