Atrial fibrillation and a corresponding enlargement of the left atrium may cause an increase in size of the mitral valve annulus. With a sinus rhythm, the mitral annulus undergoes dynamic changes during the cardiac cycle. For example, at the end of diastole the annular area is smaller than at the end of systole.
To determine who can perform aquatic therapy, we must define what aquatic therapy is. First, notice that aquatic therapy is considered a therapeutic procedure, not a modality. There are many technical and practical distinctions between the practice of aquatic therapy and the application of therapeutic modalities.
  SALT WATER POOLS ARE CHLORINATED POOLS. The difference is that the chlorine is added or manufactured automatically -- you do not have to physically add chlorine by han â¦ d daily or weekly.You also get a more even distribution of that chemical being added. SALT WATER POOLS ARE CHLORINATED POOLS. The difference is that the chlorine is added or manufactured automatically -- you do not have to physically add chlorine by han â¦ d daily or weekly.