Analysis of pressure distribution of bra′s shoulder straps

To find out the distribution of pressure of bra′s shoulder straps,wearing tests of four different bras have been done using AMI-3037-5S air-pack type contact surface pressure measuring system,with tester making different poses including standing,raising up arms vertically,extending arms horizontally,sitting upright,sitting relaxed and bowing down 90.° The pressure at 6 points is measured.The results show that the pressure distribution is similar when the tester wears different bras.There is a maximum pressure point at the peak of shoulder,and the data are lessened along the front strap and back strap to the end.The pressure at the back end point,however,is increased affected by back part of bra.The pressure at every point of bra′s shoulder straps is changed with the action of bones and muscles as tester making different poses.The pressure increases with bones bulged or muscular tone along bra′s straps.