The Impact of Transfer Setup on the Performance of Independent Transfers: Phase I Final Report
Adjustable height/gap protocol
One-hundred and sixteen (116) subjects were tested under this protocol, of which seven were unable to transfer with a height/gap combination in the configuration shown in (Figure 5). 86% (100/116), CI [79%, 91%] of the sample were able to attain a height of 22” (55.9 cm) with a gap of 3.5” ( 7.6 cm). The number of subjects who are able to achieve transfers for any height beyond a 7" (17.8 cm) gap distance dropped off dramatically (Figure 11 and Table 7).
Figure 11 . Number of subjects (z-axis) able to attained a certain gap (y-axis) at a certain height (x-axis).
Table 7 . Number of subjects that were able to attain a certain gap at a certain height under adjustable height/gap protocol
| Height\Gap |
3.5" |
7" |
10.5" |
14" |
17.5"+ |
|
10" |
24% |
22% |
20% |
9% |
8% |
|
12" |
26% |
24% |
21% |
9% |
8% |
|
14" |
30% |
28% |
22% |
10% |
8% |
|
16" |
44% |
39% |
24% |
10% |
8% |
|
17" |
58% |
51% |
28% |
11% |
8% |
|
18" |
71% |
61% |
30% |
13% |
9% |
|
20" |
84% |
67% |
33% |
14% |
9% |
|
22" |
86% |
67% |
33% |
15% |
9% |
|
24" |
72% |
59% |
28% |
15% |
9% |
|
26" |
45% |
27% |
23% |
14% |
8% |
|
28"+ |
24% |
21% |
18% |
12% |
8% |
Table 7 Alternative Text Description: This table gives the number of subjects that were able to attain a certain gap at a certain height under the adjustable height/gap protocol. There are seven columns; the left one lists the height of the transfer in inches, the rest of the columns list the percentages of subjects that could attain the transfer at increasing gap distances. The number of subjects who were able to achieve transfers for any height beyond a 7” (17.9 cm) gap distance dropped off dramatically.
Subjects that could not attain the protocol
In addition to the 4 subjects that could not attain any of the protocols, three additional men could not attain the adjustable height/gap protocol. One had a complete spinal cord injury at level L4, weighted 145 lbs, 67” tall, and had been using a manual wheelchair for twenty years and used a transfer board during transfers. The second subject had a complete spinal cord injury at level T2, weighted 185 lbs, was 71” tall, had been using a manual wheelchair for 7 years, and used a walker to aid with his transfers. This subject could not attain the adjustable height protocol and adjustable gap as mentioned above. The last subject of this group was a 69 year old men who had amyotrophic lateral sclerosis, weighted 130 lbs, 67” tall, and had been using a power wheelchair for one year.
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