Changes in anatomical structure of the foot reduce the foot ability for normal performance. This study aimed to compare selected muscles of trunk and lower extremities during walking in individuals with different foot types. Forty-five female students were categorized into three groups depending on their foot structures namely, pronated, supinated and normal feet. Foot types defined by foot posture index and X-ray under the specialist physician. Electromyography activities were recorded from muscles of tibialis anterior, peroneus longus, medial gastrocnemius, biceps femoris, gluteus medius, external oblique and erector spinae in three groups while walking in determined path with self-selected gait speed. Each effort simultaneous with electromyography registration was recorded with camera. One-way ANOVA test was used to compare the groups at significance level of 0.05. The activity of muscle of tibialis anterior and medial gastrocnemius was greater in pronated foot group than that in supinated and normal groups during heel contact phase of gait (p = 0.001). Supinated foot group exhibited a greater peroneus longus activation than the other groups (p = 0.001). No significant differences were observed for remaining four muscles (p > 0.05). During midstance phase, peroneus longus, supinated foot group exhibited a greater activity compared to other groups while pronated foot group exhibited a greater muscle activity for gluteus medius than others (p = 0.001). There was a significant difference between normal and pronated foot groups for external oblique (p = 0.001). Regarding the findings of this study, the muscular performance changes in pronated and supinated foot groups are more noticeable than that in normal foot type. downloaded from http://www.apunts.org, day 07/04/2016. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited. PALABRAS CLAVEMúsculos de las extremidades inferiores; Marcha; Pie neutro; Pie pronador; Pie supinador Comparación de la actividad muscular seleccionada del tronco y las extremidades inferiores en la forma de caminar de las mujeres jóvenes con pies supinadores, pronadores y neutrosResumen Los cambios en la estructura anatómica del pie reducen su capacidad de rendimiento normal. Este estudio trató de comparar los músculos seleccionados del tronco y las extremidades inferiores al caminar, en personas con diferentes tipos de pie. Se clasificó a 45 estudiantes femeninas en tres grupos, dependiendo de la estructura de sus pies, es decir, pronadora, supinadora y neutra. El médico especialista definió los tipos de pie mediante el índice postural del pie y rayos X. Se registraron las actividades electromiográficas de los músculos tibial anterior, peroneo lateral largo, gemelo interno, bíceps femoral, glúteo medio, externo oblicuo y erector de la columna en los tres grupos, al realizar un recorrido determinado, con una velocidad de marcha auto-seleccionada. Se grabó con una cámara cada esfuerzo simultáneo al registro electromiográfic...
The current study investigated the effect of an aquatic training program on balance in women with low back pain. Methods: This was a quasi-experimental study with a pre-test and post-test and control group design. The study population included all patients with low back pain who referred to orthopedics s offices. In total, 30 women suffering from back pain were purposefully and voluntarily selected; then, randomly divided into two experimental (15 patients) and control (15 patients) groups. The subjects of the aquatic exercise group received a 12-week aquatic exercise program of 3 sessions per week for 60 minutes. The control group received no physical activity program. At the beginning and end of the experimental period, the patients' balance was assessed using Berg Balance Scale. The obtained data were analyzed using t-test and the Analysis of Covariance (ANCOVA) at the significance level of P<0.05, by SPSS. Results: We observed a statistically significant improvement in the scores of the experimental group, compared to the control group prior period balance (P<0.05). However, no significant change was observed in the controls (P≥0.05). Compared with the control group, the experimental group scores significantly increased after receiving the twelve weeks of aquatic treatment (P<0.05). Conclusion: The obtained results suggested that aquatic exercise therapy can be a useful treatment method to improve balance and subsequently improve the daily performance of patients.
Purpose: The present research evaluated the effect of using a back brace for 8 weeks on the Electromyography (EMG) activity of the selected muscles among individuals with chronic back pain in the mid-stance phase of walking. Methods:This quasi-experimental research evaluated 22 women with chronic back pain in terms of erector spinae muscles activity, abdominal erectus, abdominal external oblique, and abdominal internal oblique. The study participants were randomly selected and divided into the experimental and control groups. The experimental group employed back brace for 8 weeks. Before and after using the brace, the EMG activity was recorded in both groups. The Independent t-test and Paired t-test were used to analyze the data (P≤0.05) in SPSS. Results:In the experimental group, the EMG activity of erector spinae and abdominal erectus muscle in the mid-stance phase of walking was significantly less than that of the control group. However, there was no significant difference in respect of external and internal oblique muscles in the experimental group compared to the controls (P>0.05). Conclusion:Using brace can reduce the activity of erector spinae and abdominal erectus muscle in the mid-stance phase of walking. Kinematic and kinetic studies are necessary to describe the reasons for these changes because of back brace use. Citation Farmani F, Khodaveisi H, Alirezaei F. Effect of Using Back Brace for 8 Weeks on Electromyogrphic Activity in Women With Chrononic Back Pain During Gaite. Physical Treatments. 2018; 8(2):93-98. http://dx.
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