Healthy
Conditions
Brief summary
The purpose of this study is to evaluate the accuracy with which a microprocessor-controlled treadmill delivers controlled postural disturbances.
Interventions
DEVICETreadmetrix
Programmable treadmill that delivers controlled postural disturbances
Sponsors
Mayo Clinic
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy adults with no medical conditions or previous injuries, trauma, or surgeries that reduce your balance, mobility or strength. * Able to follow simple directions. * Willingness to participate in the study. * No restriction will be placed on gender, race, or ethnicity.
Exclusion criteria
* Current or chronic pain in your shoulders, elbows, hips, knees, ankles, feet, neck or back. * Use of assistive device such as walker or cane.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | Duration of participant test session (approximately 2 hours) | Treadmill belt displacement (cm) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt displacement, in centimeters, relative to commended treadmill belt displacement was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value. |
| Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | Duration of participant test session (approximately 2 hours) | Treadmill belt peak velocity (cm/s) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt peak velocity, in centimeters/second, relative to commended treadmill belt peak velocity was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value. |
| Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | Duration of participant test session (approximately 2 hours) | Treadmill belt average initial acceleration (cm/s/s) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt average initial acceleration, in centimeters/second/second, relative to commended treadmill belt average initial acceleration was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| ABB Motor Subjects will undergo a balance assessment using the following program on the treadmill: 3-phase-motor, velocity control mode.
Treadmetrix: Programmable treadmill that delivers controlled postural disturbances | 5 |
| ETM Motor Subjects will undergo a balance assessment using the following program on the treadmill: single-phase, velocity control mode.
Treadmetrix: Programmable treadmill that delivers controlled postural disturbances | 2 |
| NIDEC/CT Motor Subjects will undergo a balance assessment using the following program on the treadmill: single-phase motor, position-mode.
Treadmetrix: Programmable treadmill that delivers controlled postural disturbances | 5 |
| Total | 12 |
Baseline characteristics
| Characteristic | ABB Motor | ETM Motor | NIDEC/CT Motor | Total |
|---|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical Between 18 and 65 years | 5 Participants | 2 Participants | 5 Participants | 12 Participants |
| Ethnicity (NIH/OMB) Hispanic or Latino | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 5 Participants | 2 Participants | 5 Participants | 12 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 5 Participants | 2 Participants | 5 Participants | 12 Participants |
| Race (NIH/OMB) White | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Region of Enrollment United States | 5 participants | 2 participants | 5 participants | 12 participants |
| Sex: Female, Male Female | 1 Participants | 1 Participants | 2 Participants | 4 Participants |
| Sex: Female, Male Male | 4 Participants | 1 Participants | 3 Participants | 8 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | 0 / 5 | 0 / 2 | 0 / 5 |
| other Total, other adverse events | 0 / 5 | 0 / 2 | 0 / 5 |
| serious Total, serious adverse events | 0 / 5 | 0 / 2 | 0 / 5 |
Outcome results
Primary
Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration.
Treadmill belt average initial acceleration (cm/s/s) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt average initial acceleration, in centimeters/second/second, relative to commended treadmill belt average initial acceleration was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value.
Time frame: Duration of participant test session (approximately 2 hours)
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -500 cm/s/s | 2.6 Mean Relative Error (%) | Standard Deviation 1.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1000 cm/s/s | 1.7 Mean Relative Error (%) | Standard Deviation 1.5 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1000 cm/s/s | 3.4 Mean Relative Error (%) | Standard Deviation 0.8 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1500 cm/s/s | 2.4 Mean Relative Error (%) | Standard Deviation 0.5 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -2000 cm/s/s | 5.9 Mean Relative Error (%) | Standard Deviation 2.2 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 100 cm/s/s | 0.2 Mean Relative Error (%) | Standard Deviation 7.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1500 cm/s/s | 1.8 Mean Relative Error (%) | Standard Deviation 0.8 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 500 cm/s/s | 1.1 Mean Relative Error (%) | Standard Deviation 3.5 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 2000 cm/s/s | 3.0 Mean Relative Error (%) | Standard Deviation 1.2 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -100 cm/s/s | -2.8 Mean Relative Error (%) | Standard Deviation 6.5 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -500 cm/s/s | 8.7 Mean Relative Error (%) | Standard Deviation 3.6 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1500 cm/s/s | 18.7 Mean Relative Error (%) | Standard Deviation 3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -100 cm/s/s | -7.2 Mean Relative Error (%) | Standard Deviation 1.3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1000 cm/s/s | 15.9 Mean Relative Error (%) | Standard Deviation 5.2 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1000 cm/s/s | 5.9 Mean Relative Error (%) | Standard Deviation 3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 100 cm/s/s | -6.9 Mean Relative Error (%) | Standard Deviation 0.7 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1500 cm/s/s | 29.8 Mean Relative Error (%) | Standard Deviation 1 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 2000 cm/s/s | 37.3 Mean Relative Error (%) | Standard Deviation 2.6 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -2000 cm/s/s | 45.8 Mean Relative Error (%) | Standard Deviation 0.1 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 500 cm/s/s | 5.8 Mean Relative Error (%) | Standard Deviation 1.6 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -2000 cm/s/s | 28.0 Mean Relative Error (%) | Standard Deviation 3.5 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 100 cm/s/s | -15.2 Mean Relative Error (%) | Standard Deviation 4.7 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 500 cm/s/s | -1.6 Mean Relative Error (%) | Standard Deviation 1.1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1000 cm/s/s | -0.5 Mean Relative Error (%) | Standard Deviation 0.9 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 1500 cm/s/s | 2.4 Mean Relative Error (%) | Standard Deviation 1.2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | 2000 cm/s/s | 25.3 Mean Relative Error (%) | Standard Deviation 3.1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -100 cm/s/s | -14.9 Mean Relative Error (%) | Standard Deviation 6.4 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -500 cm/s/s | -0.4 Mean Relative Error (%) | Standard Deviation 1.9 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1000 cm/s/s | 0.6 Mean Relative Error (%) | Standard Deviation 2.3 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Average Initial Acceleration. | -1500 cm/s/s | 4.6 Mean Relative Error (%) | Standard Deviation 1.9 |
Primary
Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement.
Treadmill belt displacement (cm) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt displacement, in centimeters, relative to commended treadmill belt displacement was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value.
Time frame: Duration of participant test session (approximately 2 hours)
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -4 cm | -2.8 Mean Relative Error (%) | Standard Deviation 2.9 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 40 cm | -5.9 Mean Relative Error (%) | Standard Deviation 0.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 60 cm | -6.0 Mean Relative Error (%) | Standard Deviation 0.9 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -80 cm | -2.0 Mean Relative Error (%) | Standard Deviation 2.8 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 80 cm | -3.8 Mean Relative Error (%) | Standard Deviation 1.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 4 cm | -8.5 Mean Relative Error (%) | Standard Deviation 4.2 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -40 cm | -5.6 Mean Relative Error (%) | Standard Deviation 0.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -20 cm | -5.5 Mean Relative Error (%) | Standard Deviation 0.3 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 20 cm | -5.8 Mean Relative Error (%) | Standard Deviation 0.5 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -60 cm | -5.0 Mean Relative Error (%) | Standard Deviation 0.4 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 40 cm | -7.5 Mean Relative Error (%) | Standard Deviation 2.3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -80 cm | 16.8 Mean Relative Error (%) | Standard Deviation 3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 4 cm | 20.0 Mean Relative Error (%) | Standard Deviation 1.3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 20 cm | -6.6 Mean Relative Error (%) | Standard Deviation 0.8 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 60 cm | -2.9 Mean Relative Error (%) | Standard Deviation 0.7 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 80 cm | 9.4 Mean Relative Error (%) | Standard Deviation 0.6 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -4 cm | 20.0 Mean Relative Error (%) | Standard Deviation 3 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -20 cm | -6.9 Mean Relative Error (%) | Standard Deviation 2.2 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -40 cm | -2.6 Mean Relative Error (%) | Standard Deviation 6 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -60 cm | 5.1 Mean Relative Error (%) | Standard Deviation 2.8 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 4 cm | 2.1 Mean Relative Error (%) | Standard Deviation 1.2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -60 cm | -0.8 Mean Relative Error (%) | Standard Deviation 0.5 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -20 cm | -0.3 Mean Relative Error (%) | Standard Deviation 0.3 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 80 cm | -2.4 Mean Relative Error (%) | Standard Deviation 3.9 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 40 cm | -0.5 Mean Relative Error (%) | Standard Deviation 0.1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 60 cm | -3.1 Mean Relative Error (%) | Standard Deviation 2.8 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -40 cm | -0.6 Mean Relative Error (%) | Standard Deviation 0.2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | 20 cm | -0.2 Mean Relative Error (%) | Standard Deviation 0.1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -80 cm | 3.1 Mean Relative Error (%) | Standard Deviation 1.1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Belt Displacement. | -4 cm | 2.2 Mean Relative Error (%) | Standard Deviation 1.2 |
Primary
Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity.
Treadmill belt peak velocity (cm/s) will be measured with a Motion Capture system for each perturbation trial and compared to the commanded magnitude to assess system accuracy. Mean observed treadmill belt peak velocity, in centimeters/second, relative to commended treadmill belt peak velocity was calculated and the mean relative error (percentage) was reported. Percent Error = (Commanded Kinematic Value - Observed Kinematic Value)/Commanded Kinematic Value \*100%. The mean value is then determined from the individual errors for each participant. This results in Mean Relative Error. Lower numbers are considered a better outcome (less error). A negative percentage indicates that the observed value is larger than the command value.
Time frame: Duration of participant test session (approximately 2 hours)
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -200 cm/s | -2.5 Mean Relative Error (%) | Standard Deviation 0.6 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 300 cm/s | -3.3 Mean Relative Error (%) | Standard Deviation 0.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 20 cm/s | 0.1 Mean Relative Error (%) | Standard Deviation 0.5 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -100 cm/s | -1.7 Mean Relative Error (%) | Standard Deviation 1.2 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 400 cm/s | -2.5 Mean Relative Error (%) | Standard Deviation 0.4 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -400 cm/s | -0.8 Mean Relative Error (%) | Standard Deviation 1.1 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -20 cm/s | 1.7 Mean Relative Error (%) | Standard Deviation 1.6 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -300 cm/s | -2.7 Mean Relative Error (%) | Standard Deviation 0.6 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 100 cm/s | -2.9 Mean Relative Error (%) | Standard Deviation 0.8 |
| ABB Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 200 cm/s | -3.9 Mean Relative Error (%) | Standard Deviation 0.5 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -400 cm/s | 27.2 Mean Relative Error (%) | Standard Deviation 0.8 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 200 cm/s | -5.8 Mean Relative Error (%) | Standard Deviation 2 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -20 cm/s | 15.4 Mean Relative Error (%) | Standard Deviation 1.8 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 20 cm/s | 15.8 Mean Relative Error (%) | Standard Deviation 3.2 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 100 cm/s | -2.9 Mean Relative Error (%) | Standard Deviation 4 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 300 cm/s | 4.3 Mean Relative Error (%) | Standard Deviation 2.6 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 400 cm/s | 20.4 Mean Relative Error (%) | Standard Deviation 1.1 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -100 cm/s | 0.8 Mean Relative Error (%) | Standard Deviation 1 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -200 cm/s | 2.2 Mean Relative Error (%) | Standard Deviation 2.5 |
| ETM Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -300 cm/s | 11.6 Mean Relative Error (%) | Standard Deviation 0.2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -300 cm/s | 0.1 Mean Relative Error (%) | Standard Deviation 1 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -100 cm/s | -1.8 Mean Relative Error (%) | Standard Deviation 1.2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 200 cm/s | -2.7 Mean Relative Error (%) | Standard Deviation 0.9 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -400 cm/s | 17.3 Mean Relative Error (%) | Standard Deviation 2.3 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -200 cm/s | -2.3 Mean Relative Error (%) | Standard Deviation 1.5 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 20 cm/s | -0.9 Mean Relative Error (%) | Standard Deviation 0.8 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 100 cm/s | -2.1 Mean Relative Error (%) | Standard Deviation 0.9 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 400 cm/s | 14.4 Mean Relative Error (%) | Standard Deviation 2 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | -20 cm/s | -0.2 Mean Relative Error (%) | Standard Deviation 1.4 |
| NIDEC/CT Motor | Estimate the Limits of Agreement Between Observed and Commanded Treadmill Belt Disturbance Parameters: Peak Velocity. | 300 cm/s | -1.0 Mean Relative Error (%) | Standard Deviation 0.7 |