Table 5 AMS and neurology variables
Outcome | Author and year | Duration of exposure (h:min) | Hypobaric hypoxia result [mean (SD)] | Normobaric hypoxia result [mean (SD)] | Difference (HH − NH) | P value | Direction of difference NH compared to HH |
|---|---|---|---|---|---|---|---|
Length of centre of pressure trajectory in Y axis | Â | Â | Â | Â | Â | Â | Â |
 Eyes open 1,700 m | Degache 2012 | 00:30 | 114.2 (38.8) | 129.5 (53.3) | -15.3 | - | NH > HH |
 Eyes closed 1,700 m | Degache 2012 | 00:30 | 127.2 (54.9) | 87.7 (44.8) | 39.5 | - | HH > NH |
 Dual task 1,700 m | Degache 2012 | 00:30 | 128.7 (87.1) | 79.9 (30.3) | 48.8 | - | HH > NH |
 Romberg’s index 1,700 m | Degache 2012 | 00:30 | 1.35 (0.19) | 1.42 (0.34) | -0.07 | - | - |
 Eyes open 3,000 m | Degache 2012 | 00:30 | 123.1 (22.6) | 127.2 (41.5) | -4.1 | - | - |
 Eyes closed 3,000 m | Degache 2012 | 00:30 | 104.7 (27.0) | 89.1 (39.9) | 15.6 | - | HH > NH |
 Dual task 3,000 m | Degache 2012 | 00:30 | 91.9 (22.4) | 82.4 (30.4) | 9.5 | - | HH > NH |
 Romberg’s index 3,000 m | Degache 2012 | 00:30 | 1.33 (0.22) | 1.39 (0.29) | -0.06 | - | - |
Variance of speed of CoP | Â | Â | Â | Â | Â | Â | Â |
 Eyes open 1,700 m | Degache 2012 | 00:30 | 111.0 (56.2) | 151.4 (30.2) | -40.4 | - | NH > NH |
 Eyes closed 1,700 m | Degache 2012 | 00:30 | 111.0 (58.8) | 149.9 (31.5) | -38.9 | - | NH > HH |
 Dual task 1,700 m | Degache 2012 | 00:30 | 112.1 (57.7) | 151.1 (31.7) | -39 | - | NH > HH |
 Romberg’s index 1,700 m | Degache 2012 | 00:30 | 0.98 (0.09) | 0.99 (0.03) | -0.01 | - | - |
 Eyes open 3,000 m | Degache 2012 | 00:30 | 150.5 (42.3) | 160.8 (14.0) | -10.3 | - | NH > HH |
 Eyes closed 3,000 m | Degache 2012 | 00:30 | 142.9 (40.8) | 158.6 (13.7) | -15.7 | - | NH > HH |
 Dual task 3,000 m | Degache 2012 | 00:30 | 143.4 (39.2) | 160.1 (15.0) | -16.7 | - | NH > HH |
 Romberg’s index 3,000 m | Degache 2012 | 00:30 | 0.95 (0.11) | 0.99 (0.02) | -0.04 | - | - |
Lake Louise AMS scores | Self 2011 | 00:01 | - | - | 2.36 | >0.05 | NS |
Self 2011 | 00:04 | - | - | -4.89 | >0.05 | NS | |
Roach 1996 | 09:00 | - | - | - | <0.01 | HH > NH | |
Loeppky 2005* | 10:00 | - | - | - | <0.001 | HH > NH |