It is not necessary, nor productive, to swim every yard of a workout at top speed. A well designed workout should include rest sets interspersed between hard sets. This permits active recovery.
Float Like a Butterfly--or Sink Like a Beam You're sold on swimming's great attributes-how it strengthens heartand lungs, provides a low-impact workout, burns calories andlowers body fat. Here are some quick tips on how to start out.
