| タイトル | Evaluation of a Reverse Gradient Garment for prevention of bed-rest deconditioning |
| 著者（英） | Grunbaum, B. W.; Sandler, H.; Pace, N.; Webb, P.; Annis, J.; Dolkas, D.; Newsom, B. |
| 著者所属（英） | NASA Ames Research Center|California Univ.|Webb Associates |
| 発行日 | 1983-03-01 |
| 言語 | eng |
| 内容記述 | A Reverse Gradient Garment (RGG) was used to intermittently induce venous pooling in the extremities of a magnitude similar to that seen in going from a lying to standing position during the course of a 15-d period of horizontal bed rest. Venous pooling failed to improve bed-rest-induced losses in +2.5 Gz and +3.0 Gz centrifugation tolerance or to prevent increased heart-rate responses to lower-body negative pressure (LBNP). Four subjects served as controls, four were treated. Tests during the 7-d recovery period showed fluid/electrolyte and body composition values to have returned to pre-bed-rest levels with continued depression of acceleration tolerance times (56% decreased at +2.5 Gz and 74% decreased at +3.0 Gz compared to pre-bed-rest levels) and exaggerated blood insulin response on glucose tolerance testing (blood insulin for treated group increased 95% at 1 h before bed rest and 465% during recovery). This study demonstrates that the physiologic changes after bed rest persist for significant periods of time. Acceleration tolerance time proved to be a sensitive test for the deconditioning process. |
| NASA分類 | MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT |
| レポートNO | 83A25664 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/405123 |
