Foot Dorsiflexion Velocity and Torque Variance Explained through Architectural and Electromyography Variables Comparing Elders and Stroke Survivors

Ruiz-Muñoz, María; Gónzalez-Sánchez, Manuel; Cuesta‐Vargas, Antonio

doi:10.1016/j.jstrokecerebrovasdis.2016.05.022

Cited by 3 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [35], statistical software (IBM SPSS 24.0) was used to implement different measurements related to the combination of different variables, including inertial and electromyography sensors, and a collection of functional variables during maximal isometric and isotonic foot dorsiflexion in patients with balance impairment. Various analyses were performed, such as the normality with the Kolmogorov-Smirnov harmonization test, the comparison between the two groups of normal distribution data with the T-test, the comparison of non-normal distribution data with the Mann-Whitney U test, the comparison of data for more than three groups with the Kruskal-Wallis test, pre-treatment and post-treatment comparisons with the Wilcoxon signed rank test and the comparison of categorical data with the chi-square test.…”

Section: Other Diseasesmentioning

confidence: 99%

Measurement of Results of Functional Reach Test with Sensors: A Systematic Review

2020

View full text Add to dashboard Cite

The test of physical conditions is important to treat and presents several diseases related to the movement. These diseases are mainly related to the physiotherapy and orthopedy, but it can be applied in a wide range of medical specialties. The Functional Reach Test is one of the most common physical tests used to measure the limit of stability that is highly important for older adults because their stability is reduced with aging. Thus, older adults are part of the population more exposed to stroke. This test may help in the measurement of the conditions related to post-stroke and stroke treatment. The movements related to this test may be recorded and recognized with the inertial sensors available in off-the-shelf mobile devices. This systematic review aims to determine how to determine the conditions related to this test, which can be detected, and which of the sensors are used for this purpose. The main contribution of this paper is to present the research on the state-of-the-art use of sensors available on off-the-shelf mobile devices to measure Functional Reach Test results. This research shows that the sensors that are used in the literature studies are inertial sensors and force sensors. The features extracted from the different studies are categorized as dynamic balance, quantitative, and raw statistics. These features are mainly used to recognize the different parameters of the test, and several accidents, including falling. The execution of this test may allow the early detection of different diseases.

show abstract

Section: Other Diseasesmentioning

confidence: 99%

Measurement of Results of Functional Reach Test with Sensors: A Systematic Review

2020

View full text Add to dashboard Cite

show abstract

“…Sensory visual input can be easily modified by opening and closing the eyes, which causes changes in postural stability [14]. Ultrasound, EMG, inertial sensors, and load cells have been proven to be very reliable instruments in the architectural, functional, and kinetic analysis of the dorsiflexion of the foot [15]. Changes in muscle activation are required to maintain balance, but must occur at the appropriate moment.…”

Section: Introductionmentioning

confidence: 99%

sEMG Activation of the Flexor Muscles in the Foot during Balance Tasks by Young and Older Women: A Pilot Study

Błaszczyszyn

Szczęsna

Piechota

2019

IJERPH

View full text Add to dashboard Cite

Objective: In this publication, we suggest that young adults and seniors use various defense mechanisms to counteract loss of balance. One of the hypotheses is the change in the coordination of antagonistic muscle groups, especially within the ankles. In this study, we tried to determine if there is a relationship between the condition from resilient, to pre-frail, to frail and the ability to maintain balance during free standing and balance tasks. The aim of the study was to define the importance of muscle activity in the ankle joint, dorsal flexor of the foot for the following: tibialis anterior (TA), plantar flexor of the foot gastrocnemius medialis (GM), gastrocnemius lateralis (GL), and peroneus longus (PER), during balance tasks with eyes open (EO) and closed (EC). We hypothesized that there are differences in the activity and co-activation of the tested muscles in young and older women, which may indicate an increased risk of falls and walking disorders. Materials and methods: A group of 20 women qualified for the study. The group was divided into two subgroups, young (G1) and elderly women (G2). The aim of the study was to define the importance of muscle activity in the ankle joint, dorsal flexor of the foot for the following: tibialis anterior (TA), plantar flexor of the foot gastrocnemius medialis (GM), gastrocnemius lateralis (GL), and peroneus longus (PER), during balance tasks with eyes open (EO) and closed (EC). Results: In this study, we observed significant differences between groups in the maximum and mean values of electromyography activity (EMG) activation of the examined muscles on different types of surfaces and with open and closed eyes. Older women generated higher values of EMG activation in all muscles except the gastrocnemius medialis muscle. The results were significant for co-activation at rest for muscles as follows: tibialis anterior and gastrocnemius medialis with eyes closed (p = 0.01) and peroneus and gastrocnemius lateralis at rest with eyes open (p = 0.03), eyes closed (p = 0.04), and on a foam (p = 0.02). The sEMG amplitude of the tested muscles means that agonist muscle activity changed relative to antagonistic muscle activity. Conclusions: Activation of sEMG and coordination of ankle muscles during balance tasks change with age. It can be hypothesized that assessment of balance during free standing and equivalent tasks can predict the state of frailty, after taking into account other physiological variables that are believed to affect balance control.

show abstract

Muscle activity and architecture as a predictor of hand-grip strength

et al. 2020

Self Cite

View full text Add to dashboard Cite

Background: Grip strength is a powerful predictor of disability as well as a good indicator of physical activity. Objectives: This study aimed to relate ultrasound (US) and electromyography (EMG) simultaneously to maximum hand-grip strength during an isometric contraction. Approach: This is a cross-sectional study. Data acquisition was done with a dynamometer, US and EMG. Outcome variables included maximum strength during the hand-grip gesture, maximum muscle activity and change in muscle thickness. A non-linear regression analysis was performed to analyse the relationship between all outcome variables. Main results: A total of 38 subjects (18 men and 20 women) participated in the study. The mean results for hand-grip strength were 25.50 (SD 6.55) kg of maximum strength, a change in muscle thickness of 1.83 (SD 0.75) mm and an EMG activity of 499.29 (SD 224.20) µV. Hand-grip strength had a high correlation with muscle thickness (R2 = 0.61) and EMG activity (R2 = 0.95). The correlation between maximum muscle activity and change in muscle thickness was R2 = 0.83. Significance: The results of the present study demonstrate that this new method based on electromyographic activity and muscule architecture could be important in the development of the hand-grip test.

show abstract

Foot Dorsiflexion Velocity and Torque Variance Explained through Architectural and Electromyography Variables Comparing Elders and Stroke Survivors

Cited by 3 publications

References 32 publications

Measurement of Results of Functional Reach Test with Sensors: A Systematic Review

Measurement of Results of Functional Reach Test with Sensors: A Systematic Review

sEMG Activation of the Flexor Muscles in the Foot during Balance Tasks by Young and Older Women: A Pilot Study

Muscle activity and architecture as a predictor of hand-grip strength

Contact Info

Product

Resources

About