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intervention and phase of pain. This study is approved by the Research Ethics Com-
mittees of the University of Taubaté, Brazil (no. 139/11). Patients with no exclusion
criteria are included in the present study. They are submitted to evaluation of am-
plitude of movement concerning shoulder flexion and shoulder extension rating the
intensity of the pain according to a classic numeric (rating) pain scale (NRS). The
range of motion is obtained by using a mechanical goniometer.
The comparison between the Numerical Rating Scale (NRS) and the proposed
Fuzzy Musculoskeletal Pain Scale (FUMPS) dealing with Flexion-Extension (FE)
Shoulder Range of Motion Analysis (FE-FUMPS) is available in Table 24.1. Ob-
serve that the proposed FE-FUMPS achieves levels of pain close to those reported
by the patients when using the NRS. The FE-FUMPS advantages of not being influ-
enced by the subjectivity of the patient's pain perception. In so doing, the proposed
approach becomes a more accurate mechanism for pain measurement than those
reported by patients because it directly relates pain to its ability to perform free
motion.
Table 24.1
Results comparison between the Numerical Rating Scale (NRS) and the proposed
Fuzzy Musculoskeletal Pain Scale (FUMPS) dealing with Flexion-Extension (FE) Shoulder
Range of Motion Analysis (FE-FUMPS)
Patient
Range of Motion
Pain / disorder
o
o
Flexion
[
]
Extension
[
]
NRS FUMPS
1
160
45
2
2.16
2
160
35
2
2.69
3
150
40
2
2.5
4
145
30
3
3.56
5
140
40
3
2.69
6
100
35
4
4.89
7
100
25
5
4.89
8
90
20
6
5.91
9
65
20
7
7.12
10
55
20
8
8.39
According to results, the fuzzy musculoskeletal pain scale becomes an affordable,
simple, fast and comprehensive approach that may be an effective alternative in
respect to the subjectivity of the evaluation of musculoskeletal pain.
