Ataxia at Altitude Measured on a Wobble Board

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Presentation transcript:

Ataxia at Altitude Measured on a Wobble Board Brian G. Johnson, MB, John Simmons, MB, Alexander D. Wright, MB, Peter Hillenbrand, MB, Margaret F. Beazley, MB, Ian Sutton, MB, Christopher H.E. Imray, MB Wilderness & Environmental Medicine Volume 16, Issue 1, Pages 42-46 (March 2005) DOI: 10.1580/1080-6032(2005)16[42:AAAMOA]2.0.CO;2 Copyright © 2005 Wilderness Medical Society Terms and Conditions

Figure 1 Altitude profile is shown in black triangles over the 19 days of the trek. The days of wobble board tests are indicated by arrows. The proportion of subjects with self-reported symptomatic unsteadiness is shown in the vertical columns, with the morning questionnaire as white bars and the evening questionnaire as stippled bars. Wilderness & Environmental Medicine 2005 16, 42-46DOI: (10.1580/1080-6032(2005)16[42:AAAMOA]2.0.CO;2) Copyright © 2005 Wilderness Medical Society Terms and Conditions

Figure 2 Wobble board equipment in use. Wilderness & Environmental Medicine 2005 16, 42-46DOI: (10.1580/1080-6032(2005)16[42:AAAMOA]2.0.CO;2) Copyright © 2005 Wilderness Medical Society Terms and Conditions

Figure 3 Wobble board (number of contacts) results at different altitudes. At each altitude, the p values refer to the difference between the younger (31 years of age or less, closed circles) compared with older (over 31 years of age, open circles) subjects. The crosses refer to subjects with AMS at 4650m and 5005m. Wilderness & Environmental Medicine 2005 16, 42-46DOI: (10.1580/1080-6032(2005)16[42:AAAMOA]2.0.CO;2) Copyright © 2005 Wilderness Medical Society Terms and Conditions