The recipients of each test the automatic rocking chair rocking slowly with a rocking rhythm of 3 speeds: 0.5 Hz frequency Hz 1 Hz. and 0.75, respectively. A 15 minute frequency.
Each test recipients automatically rocking chair rocking slowly with the speed of the rocking rhythm is third frequency 0.5 Hz. 0.75 Hz., And 1 Hz. The frequency of 15 minutes.
Recipient test each rocker rocking chair automatic slow speed in 3 rocking rhythm is the frequency 0.5 Hz. 0.75 Hz.? And the 1 Hz respectively. Each frequency 15 minutes.