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Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
| Title: | Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill |
| Authors: | Kataoka, Yoshiaki Browse this author | | Takeda, Ryo Browse this author →KAKEN DB | | Tadano, Shigeru Browse this author | | Ishida, Tomoya Browse this author | | Saito, Yuki Browse this author | | Osuka, Satoshi Browse this author →KAKEN DB | | Samukawa, Mina Browse this author →KAKEN DB | | Tohyama, Harukazu Browse this author →KAKEN DB |
| Keywords: | wearable sensor | | body weight support | | positive pressure treadmill | | gait | | kinematics |
| Issue Date: | Apr-2021 |
| Publisher: | MDPI |
| Journal Title: | Sensors |
| Volume: | 21 |
| Issue: | 8 |
| Start Page: | 2619 |
| Publisher DOI: | 10.3390/s21082619 |
| Abstract: | Recently, treadmills equipped with a lower-body positive-pressure (LBPP) device have been developed to provide precise body weight support (BWS) during walking. Since lower limbs are covered in a waist-high chamber of an LBPP treadmill, a conventional motion analysis using an optical method is impossible to evaluate gait kinematics on LBPP. We have developed a wearable-sensor-based three-dimensional motion analysis system, H-Gait. The purpose of the present study was to investigate the effects of BWS by a LBPP treadmill on gait kinematics using an H-Gait system. Twenty-five healthy subjects walked at 2.5 km/h on a LBPP treadmill under the following three conditions: (1) 0%BWS, (2) 25%BWS and (3) 50%BWS conditions. Acceleration and angular velocity from seven wearable sensors were used to analyze lower limb kinematics during walking. BWS significantly decreased peak angles of hip adduction, knee adduction and ankle dorsiflexion. In particular, the peak knee adduction angle at the 50%BWS significantly decreased compared to at the 25%BWS (p = 0.012) or 0%BWS (p < 0.001). The present study showed that H-Gait system can detect the changes in gait kinematics in response to BWS by a LBPP treadmill and provided a useful clinical application of the H-Gait system to walking exercises. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/81529 |
| Appears in Collections: | 保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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