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- Ma, Christina Zong-Hao, et al.
(författare)
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Towards Wearable Comprehensive Capture and Analysis of Skeletal Muscle Activity during Human Locomotion
- 2019
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Ingår i: Sensors. - Basel, Switzerland : MDPI. - 1424-8220. ; 19:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Motion capture and analyzing systems are essential for understanding locomotion. However, the existing devices are too cumbersome and can be used indoors only. A newly-developed wearable motion capture and measurement system with multiple sensors and ultrasound imaging was introduced in this study. Methods: In ten healthy participants, the changes in muscle area and activity of gastrocnemius, plantarflexion and dorsiflexion of right leg during walking were evaluated by the developed system and the Vicon system. The existence of significant changes in a gait cycle, comparison of the ankle kinetic data captured by the developed system and the Vicon system, and test-retest reliability (evaluated by the intraclass correlation coefficient, ICC) in each channel’s data captured by the developed system were examined. Results: Moderate to good test-retest reliability of various channels of the developed system (0.512 ≤ ICC ≤ 0.988, p < 0.05), significantly high correlation between the developed system and Vicon system in ankle joint angles (0.638R ≤ 0.707, p < 0.05), and significant changes in muscle activity of gastrocnemius during a gait cycle (p < 0.05) were found. Conclusion: A newly developed wearable motion capture and measurement system with ultrasound imaging that can accurately capture the motion of one leg was evaluated in this study, which paves the way towards real-time comprehensive evaluation of muscles and joint motions during different activities in both indoor and outdoor environments.
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| 2. |
- Ren, Long Jun, et al.
(författare)
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Effect of conventional physiotherapy on pain and muscle stiffness in patients with low back pain assessed by a wireless hand-held tissue ultrasound palpation system (TUPS)
- 2019
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Ingår i: International Journal of Physical Medicine Rehabilitation. - : Omics Publishing Group. - 2329-9096. ; 7:2, s. 1-5
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Tidskriftsartikel (refereegranskat)abstract
- Background: Low back pain (LPB) is a common health problem. While physiotherapy can relieve pain and the muscle stiffness of patients with LBP was shown to be different from healthy people, few studies have investigated the effect of physiotherapy on back muscle stiffness in patients with LBP.Objective: To investigate the effect of a 5-day conventional physiotherapy treatment on muscle stiffness of patients with LBP using a newly developed wireless hand-held ultrasound probe.Methods: A total of ten patients with LBP participated in this study. They received customized conventional physiotherapy containing electrical therapy, traditional Chinese medicine, manipulation and wax therapy. The pain level was evaluated by the visual analogue scale, and the muscle stiffness was measured by a wireless hand-held tissue ultrasound palpation system. The muscle stiffness of left and right sides at L1 and L4 levels and pain level were evaluated in two conditions, including baseline and 5-day post treatments.Results and discussion: After receiving the treatment, the muscle stiffness of all tested low back regions increased significantly (p=0.040). The muscle stiffness at L4 level was significantly higher than that of L1 level (p=0.021). No significant difference of muscle stiffness between left and right sides was found. The correlation between the muscle stiffness and VAS score appeared to decrease after receiving the treatment (R2 changed from 0.3598 to 0.0533).Conclusion: A five-day conventional physiotherapy treatment could relieve the pain level and increase the muscle stiffness of patients with LBP as evaluated by a wireless hand-held ultrasound probe. The stiffness of back muscle at L4 level was significantly higher than that of L1 level in patients with LBP. The treatment may change the correlation between the muscle stiffness and VAS score at low back region.
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