KMID : 0360220090500121860
|
|
Journal of the Korean Ophthalmological Society 2009 Volume.50 No. 12 p.1860 ~ p.1867
|
|
Change in Intraocular Pressure of Normal Healthy Eyes During Sit-up With Various Postures
|
|
Hong Young-Taek
Hong Sa-Min Kim Chan-Yun Seong Gong-Je
|
|
Abstract
|
|
|
Purpose: To investigate the change in intraocular pressure (IOP) of normal healthy eyes at different positions while performing sit-ups.
Methods: Twenty normal healthy eyes of 20 subjects were studied. IOP was measured while in the ¡®sitting upright¡¯, ¡®supine¡¯, and ¡®head-down¡¯ position to determine postural effect on IOP when executing a sit-up. Measurements were taken after the performance of a sit-up and during the performance of a sit-up, in both the head up and head down positions to test the effect of the exercise on the IOP. In addition, the IOP after an ¡®isometric exercise with Valsalva¡¯s maneuver in the supine or head-down position¡¯ was measured to determine the actual IOP during a sit-up.
Results: The postural change from sitting upright to tilting the head in a downward position caused the IOP to increase. After the performance of a sit-up, the IOP decreased in both the upright and supine positions, though IOP increased in the head-down position. After the isometric exercise with Valsalva¡¯s maneuver, IOP increased significantly regardless of position.
Conclusions: IOP increased significantly during sit-ups, but decreased afterward. Future studies should be performed to evaluate the long-term effects of IOP change during and after sit-ups with respect to the prognosis of glaucoma.
|
|
KEYWORD
|
|
Head down, Intraocular pressure, Posture
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|