Biomedical Engineering Reference
In-Depth Information
Fig. 8.
ROM maximum excursions for angles measurements
Ta b l e 1 .
Demographic characteristics and results of the traditional assessment. RA 1 to 3 are
patients with RA whereas SSc 1 to 3 are patients with SSc. Normal values, if any, are presented
in the
range
column.(R:right, L:left, F-E: flex-extension, L-L: lateral-lateral)
Parameter
Range
RA 1
RA 2
RA 3 SSc 1 SSc 2
SSc3
Age
47
53
58
45
43
47
Dreiser
0-30
15
16
20
18
21
21
HAQ
0-3
1.2
1.7
2.0
1.2
1.8
1.3
ROM wrist F-E R/L
[
deg
]
65-90
90/42
70/60 50/40 80/90
75/65
90/75
ROM wrist L-L R/L
[
deg
]
90
35/25
25/15 25/30 70/60
45/60
55/70
ROM fingers F-E R/L
[
deg
]
90
65/85
60/60 70/65 88/88
65/80
90/95
Extension R/L
[
cm
]
6.5/4.5 4.8/5.5 8.5/8 8/8.2 5.5/5.3 10.5/10.5
have reported that ROM was related to some kinds of hand function in patients with
SSc [12,2] and ROM seems related to the performances recorded by the experimental
device, it is conceivable that in the future the latter might represent an instrument to
quantify the hand function, or disability, in SSc patients. As another example, patient
RA3, who showed the poorest wrists but the best fingers ROM performances, because
of a prevalent anatomical damage at wrists level, had a good performances at the dy-
namic rotation exercise which do not involve wrist movement. Moreover, in the same
patient, the low values recorded at the extension exercises evaluated using the exper-
imental device as compared to those traditionally recorded might be ascribed to the
counter resistance or to a difficulty in the execution of the exercise, as demonstrated
by the low extension speed recorded. Therefore, the experimental device appeared able
to differentiate the anatomic level of disability as well as ROM but differently from
Dreiser or HAQ which are general indicators. Moreover, allowing the registration of
speed parameters, the experimental device might estimate the quality of the exercise or
the difficulty in performing it.
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