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Table 15 Walking speed: Overall Study Results

From: Prospective study of recovery from copperhead snake envenomation: an observational study

  Discharge Day 3 Day 7 Day 14 Day 21 Day 28
  Median Range Median Range Median Range Median Range Median Range Median Range
Time to walk 7.62 meters (sec) UTP 7.1, UTP UTP 6.8, UTP 6.7 4.9, UTP 6.2 4.1, 11.4 5.5 4.3, 7.2 5.3 4.0, 6.2
Number of subjects unable to complete test 7/10 (70%) 6/9 (66%) 2/10 (20%) 0/10 (0%) 0/10 (0%) 0/10 (0%)
  1. Time to walk 7.62 meters (25 feet) on indoor level ground, in seconds [29,30]. UTP: Unable to perform test (unable to safely walk 7.62 meters without assistance devices in 180 seconds or less). Data from 10 subjects with lower extremity envenomations except for the Day 3 measurements (n = 9). Higher numbers indicate slower ambulation. The maximum amount of time allowed for the task is 180 seconds, and subjects who were unable to complete the task were scored as 180 seconds. The day of envenomation is Day 0.