Reliability of the Electromechanical Delay Components Assessment during the Relaxation Phase
المؤلفون المشاركون
Cè, Emiliano
Esposito, Fabio
Rampichini, Susanna
Limonta, Eloisa
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-03-06
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
The study aimed to assess by an electromyographic (EMG), mechanomyographic (MMG), and force-combined approach the electrochemical and mechanical components of the overall electromechanical delay during relaxation (R-EMD).
Reliability of the measurements was also assessed.
To this purpose, supramaximal tetanic stimulations (50 Hz) were delivered to the gastrocnemius medialis muscle of 17 participants.
During stimulations, the EMG, MMG, and force signals were detected, and the time lag between EMG cessation and the beginning of force decay (Δt EMG-F, as temporal indicators of the electrochemical events) and from the initial force decrease to the largest negative peak of MMG signal during relaxation (Δt F-MMG, as temporal indicators of the mechanical events) was calculated, together with overall R-EMD duration (from EMG cessation to the largest MMG negative peak during relaxation).
Peak force (pF), half relaxation time (HRT), and MMG peak-to-peak during the relaxation phase (R-MMG p-p) were also calculated.
Test-retest reliability was assessed by Intraclass Correlation Coefficient (ICC).
With a total R-EMD duration of 96.9 ± 1.9 ms, Δt EMG-F contributed for about 24% (23.4 ± 2.7 ms) while Δt F-MMG for about 76% (73.5 ± 3.2 ms).
Reliability of the measurements was high for all variables.
Our findings show that the main contributor to R-EMD is represented by the mechanical components (series elastic components and muscle fibres behaviour), with a high reliability level for this type of approach.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cè, Emiliano& Rampichini, Susanna& Limonta, Eloisa& Esposito, Fabio. 2013. Reliability of the Electromechanical Delay Components Assessment during the Relaxation Phase. Physiology Journal،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-478020
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cè, Emiliano…[et al.]. Reliability of the Electromechanical Delay Components Assessment during the Relaxation Phase. Physiology Journal No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-478020
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cè, Emiliano& Rampichini, Susanna& Limonta, Eloisa& Esposito, Fabio. Reliability of the Electromechanical Delay Components Assessment during the Relaxation Phase. Physiology Journal. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-478020
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-478020
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر