Abstract
Objective
The AlterG treadmill provides bodyweight support and gait data for rehabilitation. Clinicians often use spatiotemporal gait parameters to assess a patient’s progress during rehabilitation; therefore, the validity and reliability of these metrics are very important. This study aimed to assess the agreement and reliability of the spatiotemporal gait metrics measured by the Stride Smart system in the AlterG treadmill compared to the Xsens motion capture system during walking at different bodyweight support conditions.
Methods
17 healthy adults walked on an AlterG treadmill at 3 km/h and 4 km/h at 4 bodyweight conditions (100, 75, 50, 25 %) while wearing Xsens sensors on the lower body, repeating this session 7.0 ± 0.7 days later. Gait metrics were calculated using the Xsens motion cloud software and the Stride Smart system. Agreement and between-session reliability for the Stride Smart Gait metrics were assessed.
Results
Stride Smart gait metrics cadence, step length and stance time were reliable (ICC ≥ 0.621) and showed good agreement (r ≥ 0.602) for 100 and 75 % bodyweight, but not for 50 and 25 % bodyweight compared to the Xsens system.
Conclusions
Therefore, clinicians should only use gait metrics at ≥ 75 % bodyweight to assess progress in rehabilitation when using the Stride Smart system on the AlterG treadmill.
The AlterG treadmill provides bodyweight support and gait data for rehabilitation. Clinicians often use spatiotemporal gait parameters to assess a patient’s progress during rehabilitation; therefore, the validity and reliability of these metrics are very important. This study aimed to assess the agreement and reliability of the spatiotemporal gait metrics measured by the Stride Smart system in the AlterG treadmill compared to the Xsens motion capture system during walking at different bodyweight support conditions.
Methods
17 healthy adults walked on an AlterG treadmill at 3 km/h and 4 km/h at 4 bodyweight conditions (100, 75, 50, 25 %) while wearing Xsens sensors on the lower body, repeating this session 7.0 ± 0.7 days later. Gait metrics were calculated using the Xsens motion cloud software and the Stride Smart system. Agreement and between-session reliability for the Stride Smart Gait metrics were assessed.
Results
Stride Smart gait metrics cadence, step length and stance time were reliable (ICC ≥ 0.621) and showed good agreement (r ≥ 0.602) for 100 and 75 % bodyweight, but not for 50 and 25 % bodyweight compared to the Xsens system.
Conclusions
Therefore, clinicians should only use gait metrics at ≥ 75 % bodyweight to assess progress in rehabilitation when using the Stride Smart system on the AlterG treadmill.
| Original language | English |
|---|---|
| Article number | 102210 |
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Foot |
| Volume | 65 |
| Early online date | 14 Oct 2025 |
| DOIs | |
| Publication status | E-pub ahead of print - 14 Oct 2025 |
Keywords
- gait analysis
- lower-body positive pressure treadmill
- rehabilitation
- simulated reduced gravity