Ulla Werlauff Methods to assess physical functioning - Danske ...

Motor Function Measure (study II)
The MFM dimension 3 was highly correlated with MRC% score (0.925), the correlation improved
when the item measuring foot motion was omitted (0.937). Correlation between age and MFM D3
score was low (-0.472), but younger patients ≤ 20 years had a significantly higher score than older
patients (p = 0.02).
Minimum respective maximum MFM D3 scores were used in 3/52 patients. When the score was
calculated for the six upper limb items only, minimum score was used in 7/52 patients, maximum
score in five patients. Degree of difficulty for the individual item on the MFM upper limb is
illustrated in figure 8.
The MFM D3 score could discriminate among all patients across the range of upper limb function
as measured by Brooke upper limb scale (p values ranging from 0.001 – 0.032). The ability to
discriminate among the strongest patients was lost in “the MFM upper limb score”.
MFM 22
MFM 18
MFM 19
MFM 21
MFM 17
0
1
2
3
MFM 20
0 10 20 30 40 50 60
Figure 8. MFM upper limb; six items – each scored from 0-3 with 3 representing maximal function. Rank of difficulties
for the individual items with the easiest item on top. The higher score the higher function. Item 22 (move fingers) was
the easiest item since 37/52 patients scored 2 or 3. Item 20 (tear paper) was the most difficult item with 39/52 patients
who scored 1 or 0.
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