Table 5.
Comparison of the MDC results to those in other studies.
| MDCs in the Literature | MDCs in This Study | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| [93] | [94] | [95] | [96] | [97] | [92] | MH-IMU | MH OPT | ||
| Spatio-temporal variables | |||||||||
| Step/Stride length [cm] | 8.0 | 8.0 | - | 4.0 | 5.4 | 11.0 | 10.0 | 3.2 | 2.2 |
| Step width [cm] | 3.0 | 2.0 | - | 2.0 | 2.3 | - | - | 6.0* | 1.7 |
| Average of gait phases [%] | 1.9 | - | - | - | - | 1.5 | 1.7 | 2.3* | 0.8 |
| Gait speed [cm/s] | 17.0 | 12.0 | - | 9.0 | 15.0 | 12.0 | 7.0 | 6.5 | 0.7 |
| Kinematic variables [°] | |||||||||
| Range of trunk tilt | - | 2.5 | 1.1 | - | - | - | - | 1.7 | 2.0* |
| Range of pelvic tilt | 1.9 | 4.4 | 2.5 | - | - | - | - | 1.5 | 1.4 |
| Range of hip flexion/extension | 4.4 | 8.3 | 2.7 | 3.0 | 3.3 | - | - | 3.2 | 2.4 |
| Range of hip adduction/abduction | 3.0 | 5.1 | 2.6 | 2.0 | 5.5 | - | - | 2.8 | 0.8 |
| Range of knee flexion/extension | 4.0 | 4.5 | 5.1 | 3.0 | 3.5 | - | - | 4.0 | 2.1 |
| Range of ankle dorsi/plantar flexion | 8.7 | 4.1 | 3.5 | - | 8.5 | - | - | 3. 1 | 2.1 |
| Range of ankle inversion eversion | - | 9.6 | - | - | - | - | - | 4.7 | 2.0 |
| Study details | |||||||||
| Experimental conditions | Floor | Floor | Floor | Treadmill | Treadmill | Floor | Treadmill | Floor | Treadmill |
| MoCap technology | Full body optical | Full body optical | Full body optical | Full body optical | Lower body optical | Feet placement IMU | Full body IMU | Full body optical | |
| Sample | 30 (18F, 12M) | 23 (12F, 11M) | 29 (15F, 14M) | 20 (10F, 10M) | 23 (23M) | 39 (14F, 25M) | 33 (13F, 20M) | ||
| Age | 30 ± 6.8 | 35 ± 7.3 | 24 ± 5.7 | 25 ± 4.0 | 35 ± 5.1 | 23 ± 6.2 | 22 ± 2.9 | ||
| Rater | Same | Same | Same | Same | Same (except for anatomical measures) | Not found | Same | ||
| Time | 1 to 14 days | One week | 5.6 ± 2.2 days | One week | 5 ± 3.0 days | More than one day | Three hours | ||
| Notes | Gait phases averaged: Foot off, Opposite foot contact, and Opposite foot off. MDC from stride length. | They do not provide ranges of movement. We have averaged the MDC of the peaks. MDC from stride length. | Data from ‘intrarater intersession’ at ‘FR3’ speed. | Some ranges are from max. to min. and others from one gait event to another. MDC from step length. |
Right and left sides averaged. MDC from step length. | Gait phases averaged: Stance and Swing. Feet IMU placement selected; this was preferred by the authors. MDC from stride length. | Gait phases averaged: Single and double support. Right and left sides averaged. The ranges are from one gait event to another. MDC from step length. |
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* Values with worse MDCs than the average in other studies.