An objective way to measure your walking problems. I would expect your therapist to have this within a year because without this there is no way to objectively determine that your walking protocols are working.
http://www.medpagetoday.com/MeetingCoverage/ECTRIMS/47703?xid=nl_mpt_AAN_confreporter_2014-09-18&
Pressure sensitive walkways and motion tracking devices provided
reliable and quantitative measures of ambulation in multiple sclerosis
patients, researchers said here
Researchers often rely on either
visual inspection or motion capturing technology to determine how well a
patient is walking. But the former is often inaccurate, and the latter
can be expensive, said
Jacob Sosnoff, PhD,
of the University of Illinois in Urbana-Champaign, in a presentation at
the European Committee for Treatment and Research in Multiple
Sclerosis, held jointly this year with its North American counterpart.
Sosnoff and colleagues analyzed the walk of 86 ambulatory patients 6 months apart using
GAITRite,
a portable walkway sensitive to pressure. GAITRite -- whose products
sell for $25,000 to $35,000 depending on the model, according to the
company
-- has
previously been tested.
In the current study, the researchers evaluated its reliability --
that is, whether results are similar in multiple tests during which the
person's actual performance would not have changed substantially --
using intraclass correlation coefficients (ICC), which range from -1 to
the perfectly correlated 1.
Five measures of walking were found to be reliable using the system:
- Gait velocity: 0.94, 95% CI .84-.97
- Functional ambulation profile: 0.94, 95% CI 0.90-0.96
- Cadence: 0.94, 95% CI 0.83-0.97
- Step time: 0.94, 95% CI 0.91-0.97
- Double support: 0.75, 95% CI 0.60-0.85
"Ultimately, the goal is to help people," Sosnoff told
MedPage Today. "And
what was unique about this study is that we were using a time period of
6 months, which is how often someone would go to their neurologist or
physical therapist." There was no intervention in between those 6
months, he said.
Of the patients in Sosnoff's study, 77% were
female, and the median age was 50 (range 27-60). All of them had MS for
at least six months, and 78% reported relapsing remitting MS. They had a
self-reported disability of 3 on the patient determined disease steps
scale (0-6). Patients were asked to walk 4.9 meters at their own pace on
the GAITRite.
Walking impairment was reported as a primary
limitation by 85% of study participants, said Sosnoff. "We want to
target gait in rehabilitation, but obviously, for us to target that, we
need to have valid and reliable measures."
Currently, functional
abilities in MS patients are most often assessed with the Expanded
Disability Status Scale (EDSS), a categorical measure that relies on
subjective evaluations that may vary between raters, and yet is
insensitive to small changes.
A continuous measure that is less
subjective and that can be relied on to show genuine decreases or
increases in functional ability over time would be useful both for
clinical research and for routine patient management.
In a separate study, researchers used
Microsoft Kinect
-- a motion-sensing input device designed mainly for home video
gaming -- to perform a postural control assessment. The $200 device
was found to be reliable in measuring the impairment of MS patients
using short stance tests, said Sebastian Mertens, a medical student at
the NeuroCure Clinical Research Center-Charité in Berlin, Germany.
Mertens
and his colleagues performed a cross-sectional study comparing 100
patients with MS with 60 healthy controls. The speed of three types of
movements -- pitch, roll, and 3D -- was measured and compared with
the Expanded Disability Status Scale (EDSS), a timed 25-foot walk
(T25W), a short maximum speed walk test (SMSW), and the WALK-12
evaluation. Participants did an open stance, a closed stance, and a
tandem stance (i.e., with one foot in front of the other).
Participants
in the study performed the test once with closed eyes and once with
open eyes. ICC values for the three movements were 0.927, 0.900, and
0.943, respectively, with eyes closed, and 0.968, 0.933, and 0.971,
respectively, with eyes open. In the closed stance, the 3D speed
correlated modestly with the other measures:
- EDSS: 0.458 (P<0.001, eyes open) and 0.531 (P<0.001, eyes closed)
- SMSW: -0.332 (P<0.001) and no correlation with closed eyes
- T25W: 0.318 (P<0.01, eyes open) and 0.331 (P<0.001, eyes closed)
- WALK12: 0.340 (P<0.001, eyes open) and 0.478 (P<0.001, eyes closed)
Obvious
impairment was observed in 30% of the MS patients, who also showed
values outside the 99th percentile in the test with eyes closed.
There
were no significant correlations with a patient's age, height, or body
mass index. In the closed stance, MS patients were also found to have
higher compensatory arm movements with eyes closed (
P=0.001) and open (
P=0.013) than in the control group.
"Kinect-based postural control assessment is fast and feasible," the researchers concluded.