The main objective is to study precision control of trunk posture and associated muscle recruitment in LBP patients and healthy controls during trunk positioning tasks in which postural control is challenged, by increased dead space breathing, by…
ID
Source
Brief title
Condition
- Musculoskeletal and connective tissue disorders NEC
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Main study parameters will be the differences between LBP patients and healthy
control subjects in
1. kinematic variability (standard deviation of trunk angle)
2. trunk muscle recruitment (EMG amplitudes and ratios of different muscle
groups)
3. stiffness of the trunk (estimated based on kinematic responses to external
forces)
Secondary outcome
Not applicable
Background summary
Motor control in low back pain (LBP) patients is poorly understood. Recently,
the theory of contingent adaptation was developed. This theory suggests
non-deterministic adaptations of movement strategies with increased robustness
(resistance to internal and external perturbations) of the afflicted joints or
body parts as common goal. The present study will provide insight in adaptive
strategies and associated muscle recruitment in patients with LBP during trunk
positioning tasks in which postural control is challenged.
Study objective
The main objective is to study precision control of trunk posture and
associated muscle recruitment in LBP patients and healthy controls during trunk
positioning tasks in which postural control is challenged, by increased dead
space breathing, by external perturbations (max. 100 N) and by local muscle
vibration.
Study design
Comparative, cross-sectional study on cases and healthy controls.
Study burden and risks
Participation in this study involves low risks. All tasks are performed within
a small part of the total range of motion (Troke et al., 2005), close to
neutral posture. Perturbations and other challenges to postural control are
mild. However, it is possible that (part of) the tasks evoke pain in LBP
patients. Also, subjects can experience some discomfort due to pressure at the
buttocks (ischial bones) in the fixed semi-seated position and due to the
external forces (max. 100 N) applied to the thorax. Patients can always stop a
measurement or the complete experiment instantaneously.
Van der Boechorststraat 9
1081 BT
NL
Van der Boechorststraat 9
1081 BT
NL
Listed location countries
Age
Inclusion criteria
aspecific low back pain for at least 6 weeks
age 18-65
Exclusion criteria
previous spine surgery
any conditions, other than LBP, that interfere with trunk posture, or that render the patient too unfit to be tested or unable to understand or adhere to the experimental protocol.
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 | NL32378.029.10 |