Walking Cast Right Leg Immobilisation Effects, Aircast Right Leg Immobilisation Effects
Conditions
Keywords
car driving simulator, orthopedic leg immobilisation, braking time, braking force
Brief summary
Abstract Background: Effects of orthopedic immobilizations of the lower right limb on driving performances are unknown. Therefore, clinicians and legislators cannot put forth recommendations for road safety for patients requiring such immobilizations. The objective of the present study was to evaluate the effects of different orthopedic immobilizations on braking performances in simulated driving conditions. Methods: The braking performances of 48 healthy volunteers were evaluated under 3 conditions: wearing their running shoes, and 2 types of orthopedic immobilizations of the lower right limb, a walking cast and an Aircast walker. A computerized driving simulator was used to measure the maximum force applied on the brake pedal during braking, the braking reaction time and the total braking time during emergency braking with and without a distracter.
Interventions
PROCEDUREDriving with running shoes
Participant was asked to do all the experiments with their own running shoes
PROCEDUREPlaster cast
The participant was ask to do all the experiments with a plaster cast molded on his right leg
PROCEDUREDriving with Aircast
The participant was ask to do all the experiments with a aircast on his right leg
Sponsors
BSN Medical Inc
Université de Sherbrooke
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
25 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy subjects between 25 and 60 years old * Valid Québec driving license * Driving for at least five years * Must used exclusively the right foot for accelerating and braking
Exclusion criteria
* Non-compensated visual acuity deficits or other visual problems * Drug or alcohol abuse * Use of psychotropic drugs * Central nervous system illnesses such as epilepsy * Sleep issues * Metabolic problems * Cardiovascular disease * Cerebrovascular disease * Peripheral vascular disease * Psychiatric illness * Renal disease * Musculoskeletal disease * Motion sickness and * Simulator sickness
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean Breaking Time Measured on a Driving Car Simulator | June 2007 to September 2007 | computerized driving simulator was used to measure the braking reaction time and the total braking time during emergency braking with and without a distracter. |
| Mean Breaking Force Measured on a Driving Car Simulator | June 2007 to September 2007 | computerized driving simulator was used to measure the braking force during emergency braking with and without distractor |
Countries
Canada
Participant flow
Recruitment details
march 2007 to june 2007 recruitment was done at the CHUS
Participants by arm
| Arm | Count |
|---|---|
| Healthy Subjects | 48 |
| Total | 48 |
Baseline characteristics
| Characteristic | Healthy Subjects |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 0 Participants |
| Age, Categorical Between 18 and 65 years | 48 Participants |
| Age, Continuous | 42.27 years STANDARD_DEVIATION 10.06 |
| Region of Enrollment Canada | 48 participants |
| Sex: Female, Male Female | 24 Participants |
| Sex: Female, Male Male | 24 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 0 / 48 |
| serious Total, serious adverse events | 0 / 48 |
Outcome results
Primary
Mean Breaking Force Measured on a Driving Car Simulator
computerized driving simulator was used to measure the braking force during emergency braking with and without distractor
Time frame: June 2007 to September 2007
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Healthy Subjects | Mean Breaking Force Measured on a Driving Car Simulator | 293.8 pounds | Standard Deviation 75.2 |
Primary
Mean Breaking Time Measured on a Driving Car Simulator
computerized driving simulator was used to measure the braking reaction time and the total braking time during emergency braking with and without a distracter.
Time frame: June 2007 to September 2007
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Healthy Subjects | Mean Breaking Time Measured on a Driving Car Simulator | 0.58 seconds | Standard Deviation 0.041 |