Exercise Therapy in Hypertensive Men

To the Editor:— Admittedly it might have made a better study had we randomly selected our hypertensive group from a hypertensive pool with the remainder of the group serving as hypertensive controls. This was considered at the time the study design was made. However, we felt our hypertensive patients had served as their own controls. They had been hypertensive minimally for a year and many for several years. They had been followed up regularly by their own physicians, had had numerous blood pressures taken in the office environment, and every effort had been made to keep all other variables constant. In addition, the blood pressure records by the laboratory personnel were remarkably similar to those obtained by the referring physicians throughout this study. Every hypertensive patient had a drop in diastolic pressure and the data show a bimodal distribution with one peak centered at 20 mm and the other at