To investigate the validity the dynamometer the KinCom in comparison to the Biodex dynamometer.
ID
Source
Brief title
Condition
- Neuromuscular disorders
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The peak isometric and isokinetic torque of three repetitions of maximal
voluntary contractions will be used to establish the validity of the KinCom in
comparison to the golden standard, the Biodex dynamometer.
Secondary outcome
not applicable
Background summary
Years after stable functioning the majority of people who have encountered
acute poliomyelitis in the past report a new decline in muscle strength. This
new decline in muscle strength is one of the symptoms of the Post Polio
Syndrome (PPS). Long term follow-up studies have reported a slow decline in
muscle strength, objectified by fixed dynamometry, in patients with PPS.
There are several ways to measure muscle strength, Manual muscle testing (MMT)
according to the Medical Research Council (MRC) scale, myometry and fixed
dynamometry. MMT is shown to be subjective and dependent on the strength of the
researcher. It is also insensitive to change over time, particularly when
strength is grade 4 to 5. Hand-held dynamometry provides a more accurate and
more sensitive quantative assessment of maximum isometric strength, but the
ability to measure maximal strength is limited by the strength of the
researcher, especially in the larger muscle groups, like the quadriceps. In
previous follow-up studies in PPS-patients the Kinetic Communicator (KINCOM,
model 500, Chattecx Corporation, Chattanooga Group, Chattanooga, TN, USA)) has
been used to measure quadriceps strength. The Kincom dynamometer will, after
more then 25 years of use, be replaced by a Biodex Dynamometer and it is not
known whether outcomes are comparable.
To be able to continue the long term follow-up measurements on the Biodex and
interpret changes in muscle strength based on measurements performed with
different dynamometers, it has to be demonstrated that Kincom measurements are
valid and comparable to the measurement performed with the Biodex dynamometer.
Study objective
To investigate the validity the dynamometer the KinCom in comparison to the
Biodex dynamometer.
Study design
validity study.
Study burden and risks
Participants will be asked to visit the AMC once for about one and a half hour.
They will be asked to perform three maximal voluntary contractions on two fixed
dynamometers. The risks associated with participation are considered minimal
(temporary muscle soreness). Participants will have no direct benefit from the
study.
Postbus 22660
1100 DD Amsterdam
NL
Postbus 22660
1100 DD Amsterdam
NL
Listed location countries
Age
Inclusion criteria
1) healthy volunteers
2) group of post polio patients with 1) a history of poliomyelitis; 2) paresis of at least one of the quadriceps muscles.
Exclusion criteria
1) inflammatory muscle or joint pathology, pain of muscles or joints of the lower extremity preventing exerting maximal contraction of the quadriceps muscle, cardiac or pulmonary problems, elite athletes.
2) 1) other neuromuscular or orthopaedic disorders, 2) strength of both quadriceps muscles below 30 Nm, 3) decreased range of motion in the lower extremity, 4) pain of muscles or joints of the lower extremity preventing patients from exerting maximal contraction of the quadriceps muscle.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL32023.018.10 |