Adaptive Real-time Decomposition of Electromyogram During Sustained Muscle Activation: A Simulation Study

2021 ◽  
pp. 1-1
Author(s):  
Yang Zheng ◽  
Xiaogang Hu
Keyword(s):  
Real Time ◽  
Simulation Study ◽  
Muscle Activation ◽  
Time Decomposition

The Addition of Real-time Ultrasound Visual Feedback to Manual Facilitation Increases Serratus Anterior Activation in Adults With Painful Shoulders: A Randomized Crossover Trial

2020 ◽  
Author(s):  
Leanda J McKenna ◽  
Luke Bonnett ◽  
Kelly Panzich ◽  
Jacinta Lim ◽  
Snorre K Hansen ◽  
...  
Keyword(s):  
Real Time ◽  
Visual Feedback ◽  
Muscle Activation ◽  
Crossover Trial ◽  
Physical Therapist ◽  
Pain Syndrome ◽  
Serratus Anterior ◽  
Subacromial Pain Syndrome ◽  
Randomized Crossover Trial ◽  
To Receive

Abstract Background Serratus anterior (SA) muscle activation may be decreased with subacromial pain syndrome. Determining whether real-time ultrasound (RTUS) can improve SA muscle activation may improve physical therapist interventions for subacromial pain syndrome. Objective The objective of this study was to determine whether the addition of RTUS visual feedback increased the activation of SA in adults with painful shoulders in comparison to manual facilitation alone. Design This was an assessor-masked, 2-period, randomized crossover trial. Setting The setting was a university medical imaging laboratory. Participants Adults with mild to moderate unilateral subacromial pain received both interventions in random order with at least a 1-week washout between interventions. Fourteen participants were randomized to receive manual facilitation with RTUS first, and 13 were randomized to receive manual facilitation only first. Intervention The intervention was 15 repetitions of a supine “serratus punch” facilitated by manual facilitation with RTUS visual feedback or manual facilitation alone. Measurements Levels of SA activation were measured with surface electromyography normalized to a maximal voluntary isometric contraction. Results A total of 25 participants completed the full trial of both interventions. Data from 25 participant periods for RTUS with manual facilitation and data from 26 participant periods for manual facilitation only were analyzed. The predicted marginal mean difference between interventions was 55.5% (95% CI = 13.9% to 97.1%) (P = .009), favoring the addition of RTUS feedback. No adverse effects occurred. Limitations The results are applicable only to mild to moderate levels of shoulder pain, and it is unknown whether the addition of RTUS visual feedback reduces pain or disability. Conclusion Manual facilitation with RTUS visual feedback increased SA activation in adults with painful shoulders compared with manual facilitation alone. Impact Determining if real-time ultrasound (RTUS) can improve SA muscle activation may help clinicians improve physical therapist interventions for subacromial pain syndrome.

Validation of an Instrument for Real-Time Assessment of Neonatal Intubation Skills: A Randomized Controlled Simulation Study

2020 ◽  
Author(s):  
Lindie J.M.K. Kuijpers ◽  
Mathijs Binkhorst ◽  
Nicole K. Yamada ◽  
Romy N. Bouwmeester ◽  
Arno F.J. van Heijst ◽  
...  
Keyword(s):  
Construct Validity ◽  
Real Time ◽  
Simulation Study ◽  
Intraclass Correlation ◽  
Intervention Group ◽  
Control Group ◽  
Validity And Reliability ◽  
Patient Simulator ◽  
Randomized Controlled ◽  
Time Assessment

Objective This study aimed to evaluate the construct validity and reliability of real-time assessment of a previously developed neonatal intubation scoring instrument (NISI). Study Design We performed a randomized controlled simulation study at a simulation-based research and training facility. Twenty-four clinicians experienced in neonatal intubation (“experts”) and 11 medical students (“novices”) performed two identical elective intubations on a neonatal patient simulator. Subjects were randomly assigned to either the intervention group, receiving predefined feedback between the two intubations, or the control group, receiving no feedback. Using the previously developed NISI, all intubations were assessed, both in real time and remotely on video. Construct validity was evaluated by (1) comparing the intubation performances, expressed as percentage scores, with and without feedback, and (2) correlating the intubation performances with the subjects' level of experience. The intrarater reliability, expressed as intraclass correlation coefficient (ICC), of real-time assessment compared with video-based assessment was determined. Results The intervention group contained 18 subjects, the control group 17. Background characteristics and baseline intubation scores were comparable in both groups. The median (IQR) change in percentage scores between the first and second intubation was significantly different between the intervention and control group (11.6% [4.7–22.8%] vs. 1.4% [0.0–5.7%], respectively; p = 0.013). The 95% CI for this 10.2% difference was 2.2 to 21.4%. The subjects' experience level correlated significantly with their percentage scores (Spearman's R = 0.70; p <0.01). ICC's were 0.95 (95% CI: 0.89–0.97) and 0.94 (95% CI: 0.89–0.97) for the first and second intubation, respectively. Conclusion Our NISI has construct validity and is reliable for real-time assessment. Key Points

Real-time tumor tracking using implanted positron emission markers: Concept and simulation study

2006 ◽  
Vol 33 (7Part1) ◽  
pp. 2598-2609 ◽  
Author(s):  
Tong Xu ◽  
Jerry T. Wong ◽  
Polad M. Shikhaliev ◽  
Justin L. Ducote ◽  
Muthana S. Al-Ghazi ◽  
...  
Keyword(s):  
Real Time ◽  
Simulation Study ◽  
Tumor Tracking ◽  
Positron Emission

Real-time decomposition and recognition of acoustical patterns with an analog neural computer

1992 ◽  
Author(s):  
Paul Mueller ◽  
Jan Van der Spiegel ◽  
David Blackman ◽  
Christopher Donham ◽  
Ralph Cummings
Keyword(s):  
Real Time ◽  
Time Decomposition
Sign in / Sign up

Export Citation Format

Share Document