مطالب مرتبط با کلیدواژه

Muscle activity


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The effect of the body type on the electrical activity of the abdominal muscles during gait(مقاله علمی وزارت علوم)

کلیدواژه‌ها: body type abdominal muscles Muscle activity Gait

حوزه‌های تخصصی:
تعداد بازدید : ۱۹۶ تعداد دانلود : ۱۴۵
Introduction: muscle performance could be influenced by physical features of the body. The purpose of this study was to investigate the effect of the body type on the electrical activity of the abdominal muscles during gait. Materials and Methods: Heath Carter somatotype method was used to determine body type. The performance of rectus abdominis muscle (RA), internal oblique muscle (IO) and external oblique muscle (EO) was recorded. The mean and the standard deviation were used for description of the data and ANOVA and post-hoc Tukey were utilized for comparison between three body types at the significance level of P<0.05. Results: The results showed that there is a significant difference in the root mean square (RMS) of EO and IO and the average percentage of that is higher in ENDO in comparison with the other two types. Also, the duration of electrical activity (DEA) was only significant for the IO between the endomorphs (ENDO), the mesomorphs (MESO) and the ectomorphs (ECTO) and its mean was higher for the ENDO. Discussion: According to the findings of the study, we could claim that the difference in the performance pattern of the muscles in the abdominal area during gait is influenced by body type.
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Managing post-operative complications in a patient with excessive ankle stiffness: A case study addressing gait biomechanics and EMG(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Electrical stimulation Muscle activity spatiotemporal kinetics kinematics

حوزه‌های تخصصی:
تعداد بازدید : ۷۷ تعداد دانلود : ۶۳
Background: Instrument Assisted Soft Tissue Mobilization (IASTM) and electrotherapy have shown to help alleviating post-operation complications and affect gait kinematics and muscle strength.Aim: This case study aimed to manage the post-operative complications in a patient with investigate excessive ankle stiffness with kinetics, kinematics and Electromyography (EMG) approach.Materials and Methods: A 41-year-old female with post-operation complications including decreased right ankle range of motion (ROM) and strength underwent a 12-week of IASTM and Electrotherapy. Gait analysis was performed before and after the intervention.Results: The results showed notable improvements in ankle 3-dimensional (3D) ROM, power, moment, velocity, cadence, step length, ground reaction force (GRF) and decreased stiffness, muscles activity, single and double support time. Ankle dorsiflexion ROM was not notably increased during gait.Conclusion: Findings suggest that a 12-week intervention of IASTM and electrotherapy can improve gait mechanics and reduce muscle activity in a patient with excessive ankle stiffness.