scholarly journals The Use of Wearable Sensors for the Movement Assessment on Muscle Contraction Sequences in Post-Stroke Patients during Sit-to-Stand

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 657 ◽  
Author(s):  
Wei-Chun Hsu ◽  
Chao-Chin Chang ◽  
Yi-Jia Lin ◽  
Fu-Chi Yang ◽  
Li-Fong Lin ◽  
...  
Keyword(s):  
Muscle Contraction ◽  
Tibialis Anterior ◽  
Sagittal Plane ◽  
Balance Control ◽  
Wearable Sensors ◽  
Postural Adjustment ◽  
Stroke Patients ◽  
Post Stroke ◽  
Sit To Stand ◽  
Therapeutic Exercises

Electromyography (EMG) sensors have been used to study the sequence of muscle contractions during sit-to-stand (STS) in post-stroke patients. However, the majority of the studies used wired sensors with a limited number of placements. Using the latest improved wearable technology with 16 sensors, the current study was a thorough investigation to evaluate the contraction sequences of eight key muscles on the trunk and bilateral limbs during STS in post-stroke patients, as it became feasible. Multiple wearable sensors for the detection of muscle contraction sequences showed that the post-stroke patients performed STS with abnormal firing sequences, not only in the primary mover on the sagittal plane during raising, but also in the tibialis anterior, which may affect anticipatory postural adjustment in the gluteus medius, which may affect balance control. The abnormal tibialis anterior contraction until the early ascending phase and the delayed firing of the gluteus muscles highlight the importance of whole-kinetic-chain monitoring of contraction sequences using wearable sensors. The findings can be helpful for the design of therapeutic exercises.

scholarly journals Association between Physiological and Subjective Aspects of Pain and Disability in Post-Stroke Patients with Shoulder Pain: A Cross-Sectional Study

2019 ◽  
Vol 8 (8) ◽  
pp. 1093 ◽  
Author(s):  
Martín-Martín ◽  
Membrilla-Mesa ◽  
Lozano-Lozano ◽  
Galiano-Castillo ◽  
Fernández-Lao ◽  
...  
Keyword(s):  
Shoulder Pain ◽  
Tibialis Anterior ◽  
Pain Perception ◽  
Stroke Patients ◽  
Pressure Pain ◽  
Negatively Associated ◽  
Post Stroke ◽  
Upper Trapezius ◽  
Pain Disability ◽  
Pressure Pain Thresholds

Background: Patients often experience pain as a result of a stroke. However, the mechanism of this pain remains uncertain. Our aim was to investigate the relationship between pressure pain thresholds (PPTs) and disability pain in patients with hemiplegic shoulder pain (HSP). Methods: Twenty-six post-stroke patients (age 53.35 ± 13.09 years) and healthy controls (54.35 ± 12.37 years) participated. We investigated spontaneous shoulder pain, disability pain perception through the shoulder pain and disability index (SPADI), and the PPTs over joint C5–C6, upper trapezius, deltoid, epicondyle, second metacarpal, and tibialis anterior, bilaterally. Results: The analysis of variance (ANOVA) showed significant differences in pain between groups (p < 0.001) and differences in the SPADI (p < 0.001) between groups but not between sides for PPTs over deltoid (group: p = 0.007; side: p = 0.750), epicondyle (group: p = 0.001; side: p = 0.848), and tibialis anterior (group: p < 0.001; side: p = 0.932). Pain in the affected arm was negatively associated with PPTs over the affected epicondyle (p = 0.003) and affected tibialis anterior (p = 0.009). Pain (SPADI) appeared negatively correlated with PPTs over the affected epicondyle (p = 0.047), and disability (SPADI) was negatively associated with PPTs over the affected tibialis anterior (p = 0.041). Conclusions: Post-stroke patients showed a relationship between widespread pressure pain hypersensitivity with lower PPT levels and pain disability perception, suggesting a central sensitization mediated by bilateral and symmetric pain patterns.

scholarly journals Temporal Features of Muscle Synergies in Sit-to-Stand Motion Reflect the Motor Impairment of Post-Stroke Patients

2019 ◽  
Vol 27 (10) ◽  
pp. 2118-2127 ◽  
Author(s):  
Ningjia Yang ◽  
Fady Shibata-Alnajjar ◽  
Shingo Shimoda ◽  
Noriaki Hattori ◽  
Takanori Fujii ◽  
...  
Keyword(s):  
Motor Impairment ◽  
Muscle Synergies ◽  
Stroke Patients ◽  
Post Stroke ◽  
Sit To Stand ◽  
Temporal Features

scholarly journals Experimental Evaluation of Balance Prediction Models for Sit-to-Stand Movement in the Sagittal Plane

2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Oscar David Pena Cabra ◽  
Takashi Watanabe
Keyword(s):  
Simple Model ◽  
Normal Condition ◽  
Inverted Pendulum ◽  
Prediction Models ◽  
Sagittal Plane ◽  
Balance Control ◽  
Inverted Pendulum Model ◽  
Sit To Stand ◽  
Joint Influence ◽  
Pendulum Model

Evaluation of balance control ability would become important in the rehabilitation training. In this paper, in order to make clear usefulness and limitation of a traditional simple inverted pendulum model in balance prediction in sit-to-stand movements, the traditional simple model was compared to an inertia (rotational radius) variable inverted pendulum model including multiple-joint influence in the balance predictions. The predictions were tested upon experimentation with six healthy subjects. The evaluation showed that the multiple-joint influence model is more accurate in predicting balance under demanding sit-to-stand conditions. On the other hand, the evaluation also showed that the traditionally used simple inverted pendulum model is still reliable in predicting balance during sit-to-stand movement under non-demanding (normal) condition. Especially, the simple model was shown to be effective for sit-to-stand movements with low center of mass velocity at the seat-off. Moreover, almost all trajectories under the normal condition seemed to follow the same control strategy, in which the subjects used extra energy than the minimum one necessary for standing up. This suggests that the safety considerations come first than the energy efficiency considerations during a sit to stand, since the most energy efficient trajectory is close to the backward fall boundary.

scholarly journals Activation timing of soleus and tibialis anterior muscles during sit-to-stand and stand-to-sit in post-stroke vs. healthy subjects

2013 ◽  
Vol 30 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Augusta Silva ◽  
Andreia S. P. Sousa ◽  
Rita Pinheiro ◽  
Joana Ferraz ◽  
João Manuel R. S. Tavares ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Tibialis Anterior ◽  
Post Stroke ◽  
Sit To Stand

Design and validation of a lower limb exoskeleton employing the recumbent cycling modality for post-stroke rehabilitation

2014 ◽  
Vol 228 (18) ◽  
pp. 3517-3525 ◽  
Author(s):  
Hua Yan ◽  
Canjun Yang
Keyword(s):  
Lower Limb ◽  
Muscle Power ◽  
Sagittal Plane ◽  
Kinematic Model ◽  
Stroke Patients ◽  
Post Stroke ◽  
Lower Limb Exoskeleton ◽  
Exoskeleton Robot ◽  
Limited Range Of Motion ◽  
Custom Made

This paper presents the design and validation of a lower limb exoskeleton robot for post-stroke patients at the early stage of neurorehabilitation. Instead of the usual walking gait, the popular exercise, recumbent cycling, is adopted to provide a safe and comfortable movement training to the patients who lost active motor abilities due to a very low muscle power. The exoskeleton robot mounted on a commercial wheelchair possesses two pairs of hip and knee joints on the right and left legs, respectively, and each joint has one degree of freedom actuated by a custom-made linear actuator in the sagittal plane. Additionally, two passive ankle joints are added to provide a limited range of motion for human comfort. The hip and knee joint motion profiles were calculated based on a simplified kinematic model of the recumbent cycling modality, and implemented through the motor position–velocity–time trajectory. Clinical trials were conducted on six stable post-stroke patients with a low muscle power under the supervision of a skilled therapist. The preliminary results validated the functionality and feasibility of the new exoskeleton robot and showed a promising application of the recumbent cycling modality in robot-assisted neurorehabilitation.

Effects of modified sit-to-stand training on balance control in hemiplegic stroke patients: a randomized controlled trial

2015 ◽  
Vol 30 (7) ◽  
pp. 627-636 ◽  
Author(s):  
Meng Liu ◽  
Jin Chen ◽  
Wenxiang Fan ◽  
Jingsong Mu ◽  
Jinlong Zhang ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Balance Control ◽  
Controlled Trial ◽  
Stroke Patients ◽  
Randomized Controlled ◽  
Sit To Stand

Flexible and Ergonomically Three Wheel Bike for Post Stroke Patient

2016 ◽  
Vol 836 ◽  
pp. 14-19 ◽  
Author(s):  
I. Made Londen Batan ◽  
Syifa ◽  
Danny Prasetyo
Keyword(s):  
Aluminum Alloy ◽  
Physical Therapy ◽  
Muscle Contraction ◽  
Stroke Patient ◽  
Rear Wheel ◽  
Steering System ◽  
Stroke Patients ◽  
Post Stroke ◽  
Prototype Test

This paper explains the new design of the three wheel bike for post-stroke patients as a equipment for physical therapy. The bike can be pedaled by foot and / or by hand simultaneously. Bike frame is made of aluminum alloy pipe and consists of front and rear frame. The front frame is equipped with a steering system that can regulate the moving of two wheels of diameter of 22 ". The rear frame is equipped with a fold mechanism, shock breaker, seat and chain stay pipes for clamping the rear wheel with diameter of 22 ". The rear frame is also equipped with a mechanism of transfer speed in three levels. Bike length is 1645 mm, width 615 mm and height 1035 mm. However, after folded the bike dimension became 725 mm long, 460 mm wide and 1035 mm high. By using CATIA software the strength frame material is simulated and analyzed. The bike design is evaluated from ergonomics aspect with RULA method. The proposed design is performed into a prototype. The prototype test is conducted. The result test show, that the bike is pedaled, either by hand or foot, strong, safe and comfortable to ride. In order to evaluate the design benefit, the pedal test is also conducted in various pedal velocities by 3 post stroke patients as respondent. During 6 minutes pedaling number of rider heartbeat is measured. The result shows all the number of heartbeat is not exceeded than 120 HR. That means the bike is enough light to pedal or the patient must not give extra power to ride the bike. Moreover, during 4 weeks therapy by cycling the bike, pedal velocity each respondents is increase significantly around 26-96%, this means the muscle contraction of respondents is reduce and developed bike can be used as alternative equipment for physical therapy of post stroke patient. Because light and foldable, the bike can be moved easily and put in the trunk of a car without problem.

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