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.
noun. 1  1mass noun The use of exercises in a pool as part of treatment for conditions such as arthritis. as modifier âa hydrotherapy poolâ. âA pool for hydrotherapy, which is extremely popular with the children, is very beneficial for spastic and un-coordinated muscular tone.â. âPhysiotherapy involves a range of treatments, including manipulation, massage, exercise, electrotherapy and hydrotherapy.â.