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

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.

Coordination of the hip and lumbar spine during sit-to-stand in healthy subjects

2015 ◽  
Vol 42 ◽  
pp. S50-S51 ◽  
Author(s):  
K. Widhalm ◽  
T. Stamm ◽  
E.J. Hurkmans
Keyword(s):  
Lumbar Spine ◽  
Healthy Subjects ◽  
Sit To Stand

scholarly journals Assessment of an Assistive Control Approach Applied in an Active Knee Orthosis Plus Walker for Post-Stroke Gait Rehabilitation

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2452
Author(s):  
Ana Cecilia Villa-Parra ◽  
Jessica Lima ◽  
Denis Delisle-Rodriguez ◽  
Laura Vargas-Valencia ◽  
Anselmo Frizera-Neto ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Muscle Activation ◽  
Inertial Sensors ◽  
Lower Limbs ◽  
Trunk Muscles ◽  
Control Group ◽  
Gait Rehabilitation ◽  
Control Approach ◽  
Post Stroke ◽  
Knee Orthosis

The goal of this study is the assessment of an assistive control approach applied to an active knee orthosis plus a walker for gait rehabilitation. The study evaluates post-stroke patients and healthy subjects (control group) in terms of kinematics, kinetics, and muscle activity. Muscle and gait information of interest were acquired from their lower limbs and trunk, and a comparison was conducted between patients and control group. Signals from plantar pressure, gait phase, and knee angle and torque were acquired during gait, which allowed us to verify that the stance control strategy proposed here was efficient at improving the patients’ gaits (comparing their results to the control group), without the necessity of imposing a fixed knee trajectory. An innovative evaluation of trunk muscles related to the maintenance of dynamic postural equilibrium during gait assisted by our active knee orthosis plus walker was also conducted through inertial sensors. An increase in gait cycle (stance phase) was also observed when comparing the results of this study to our previous work. Regarding the kinematics, the maximum knee torque was lower for patients when compared to the control group, which implies that our orthosis did not demand from the patients a knee torque greater than that for healthy subjects. Through surface electromyography (sEMG) analysis, a significant reduction in trunk muscle activation and fatigability, before and during the use of our orthosis by patients, was also observed. This suggest that our orthosis, together with the assistive control approach proposed here, is promising and could be considered to complement post-stroke patient gait rehabilitation.

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.

Comparison of Objective Indicators of Proprioception of Single–joint Arm Movements in Healthy Subjects and Post–Stroke Patients in Sitting and Lying Positions

2019 ◽  
Vol 45 (4) ◽  
pp. 397-404
Author(s):  
V. Y. Roschin ◽  
O. G. Pavlova ◽  
V. A. Selionov ◽  
I. A. Solopova ◽  
D. S. Zhvansky ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Arm Movements ◽  
Stroke Patients ◽  
Post Stroke ◽  
Objective Indicators

Autonomic Cardiac Response to Static and Dynamic Muscle Contractions in Post-Stroke and Healthy Subjects

2016 ◽  
Vol 75 (5-6) ◽  
pp. 207-212 ◽  
Author(s):  
Noa Raphaely Beer ◽  
Natan M. Bornstein ◽  
Nachum Soroker ◽  
Michal Katz-Leurer
Keyword(s):  
Healthy Subjects ◽  
Muscle Contractions ◽  
Cardiac Response ◽  
Post Stroke

The investigation of kinematic features of gait in healthy subjects and patients with post-stroke atactic disorders

2015 ◽  
Vol 115 (9. Vyp. 2) ◽  
pp. 42 ◽  
Author(s):  
M. V. Abroskina ◽  
S. V. Prokopenko ◽  
V. P. Givaev ◽  
V. S. Ondar ◽  
E. D. Gasyimlyi
Keyword(s):  
Healthy Subjects ◽  
Post Stroke
Sign in / Sign up

Export Citation Format

Share Document