With an air flow cycle time of 5 minutes, pressure is relieved over the coccyx and ischial tuberosities every 2.5 minutes. Note the large areas of high pressure that JB is exposed to continuously. 3 Images 3 and 4 demonstrate JB on the ErgoDynamic Seat in the opposite phase of the alternation cycle 2.5 minutes apart. 4 Image 5 shows the ErgoDynamic Seat in the midpoint of the alternation cycle which happens 2 times in the total 5 minute cycle. Notice the 5 preischial crossbar that helps keep JB from sliding down in the chair.
Pressure is dispersed along the posterior thighs.
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