Comparison of the Strength and Electromyography of the Evertor Muscles With and Without Toe Flexion in Patients With Chronic Ankle Instability

2020 ◽  
Vol 41 (4) ◽  
pp. 479-485
Author(s):  
Sun-hee Ahn ◽  
Ui-jae Hwang ◽  
Gyeong-tae Gwak ◽  
Hwa-ik Yoo ◽  
Oh-yun Kwon
Keyword(s):  
Interaction Effect ◽  
Muscle Activity ◽  
Significant Interaction ◽  
Ankle Instability ◽  
Chronic Ankle Instability ◽  
Metatarsal Bone ◽  
Significant Interaction Effect ◽  
Healthy Group ◽  
Peroneus Longus ◽  
Significant Difference

Background: Weakness of evertor strength is controversial in chronic ankle instability (CAI). Ankle evertor muscles are attached to the toe joints as well as to the metatarsal bone. Therefore, it is necessary to consider toe joint position for the measurement of evertor strength. The purpose of this study was to compare ankle evertor strength and muscle activity during eversion with and without toe flexion (TF) in individuals with CAI and individuals in a healthy group. Methods: Fifteen subjects with CAI and 15 healthy subjects participated in this study. Isometric ankle evertor strength and muscle activity of the peroneus longus (PL), peroneus brevis (PB), and extensor digitorum longus (EDL) were measured during eversion with and without TF. Results: The results indicated a significant interaction effect in evertor strength ( P = .03) and no significant interaction effect on EMG of the PL ( P = .08), PB ( P = .12), and EDL ( P = .28). However, measurements of muscle activity of the PL and PB between eversion with and without TF revealed a significant difference in the CAI group ( P < .01) and no significant difference in the healthy group (PL: P = .07; PB: P = .13). Conclusion: The results indicated that subjects with CAI had increased EDL compensation and reduced selective activation of the PL and PB during eversion. Clinical Relevance: Our findings suggest that clinicians should consider the activation of EDL when training the evertor of patients with CAI.

Family environment of eating disordered patients with and without self-injurious behaviors

2004 ◽  
Vol 19 (8) ◽  
pp. 494-498 ◽  
Author(s):  
Laurence Claes ◽  
Walter Vandereycken ◽  
Hans Vertommen
Keyword(s):  
Psychiatric Disorders ◽  
Family Environment ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Family Context ◽  
Hair Pulling ◽  
Significant Interaction Effect ◽  
Eating Disordered ◽  
Significant Difference ◽  
The Family

AbstractObjective.– The family environment is known to be an important contributor to the course of psychiatric disorders. In this study, we examined the family context of eating disordered (ED) patients with and without self-injurious behaviors (SIB).Method.– A Dutch adaptation of the Family Environment Scale ‘Sci Eng 57(9-B):1997;5927’ was completed by 131 ED patients of whom 47% showed at least one form of SIB (e.g., cutting, burning, hair pulling, etc.).Results– Results showed a significant difference in family environment between patients with and without SIB. The family environment of self-injuring ED patients was less cohesive, expressive and socially oriented, and more conflictual and disorganized than the family environment of those without SIB. No significant differences in perceived family environment were found with respect to the number or form of SIB and the subtype of ED. Neither did we find a significant interaction effect between ED subtype and presence/absence of SIB.

Personality and Students’ Knowledge about Ecosystem Related to Environmental Behavior of Grade XI Senior High School Students at SMA N 112, West Jakarta

2018 ◽  
Vol 3 (1) ◽  
pp. 44-59
Author(s):  
Agus Ramdani
Keyword(s):  
High School ◽  
High School Students ◽  
Interaction Effect ◽  
Significant Interaction ◽  
School Students ◽  
Significant Interaction Effect ◽  
Environmental Behaviour ◽  
Research Results ◽  
Significant Difference ◽  
Senior High School Students

The objective of this research is to find out the effect of Personality (P) and knowledge students about ecosystem (KS) on environmental behaviour (EB). An expost facto method has been used by selecting 8 sample for each cell. Reliability of P was  .964, KS was .937 and EB was .95. Data analyzed by two-way ANOVA. Research results revealed that there was environmental behaviour significant difference between those students who have most extraversion personality compared to introversion personality. Moreover, there was significant interaction effect between personality and knowledge students about ecosystem on environmental behaviour. 

ACADEMIC ACHIEVEMENT IN RELATION TO METACOGNITION AND PROBLEM SOLVING ABILITY AMONG SECONDARY SCHOOL STUDENTS

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Surinder Kaur ◽  
Rajbir Kaur
Keyword(s):  
Academic Achievement ◽  
Problem Solving ◽  
Secondary School ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Secondary School Students ◽  
School Students ◽  
Significant Interaction Effect ◽  
Ability Test ◽  
Significant Difference

The study investigated the academic achievement in relation to metacognition and problem solving ability among secondary school students. The sample constituted of 200 students studying in XI grade both boys and girls adolescents belonging to science stream from CBSE as well as PSEB of Amritsar District were randomly selected. The metacognition (Meta-cognition inventory by Govil, 2011) and problem solving ability (Problem solving ability test by Dubey, 2011) tests were used for collecting the data. The findings of the study revealed that there exists no significant difference in metacognition and problem solving ability among girls and boys of CBSE and PSEB school students belonging to medical stream .But there exists significant difference in problem solving ability among students of CBSE and PSEB schools belonging to medical stream. There exists no relationship among metacognition, problem solving ability and achievement of secondary school students belonging to medical stream. However no significant interaction effect of metacognition and problem solving ability on achievement of secondary school students belonging to medical stream was found.

scholarly journals Muscle-Activation Onset Times With Shoes and Foot Orthoses in Participants With Chronic Ankle Instability

2015 ◽  
Vol 50 (7) ◽  
pp. 688-696 ◽  
Author(s):  
Bart Dingenen ◽  
Louis Peeraer ◽  
Kevin Deschamps ◽  
Steffen Fieuws ◽  
Luc Janssens ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Linear Model ◽  
Muscle Activity ◽  
Muscle Activation ◽  
Ankle Instability ◽  
Chronic Ankle Instability ◽  
Foot Orthoses ◽  
Experimental Conditions ◽  
Peroneus Longus ◽  
Hip Muscles

Context Participants with chronic ankle instability (CAI) use an altered neuromuscular strategy to shift weight from double-legged to single-legged stance. Shoes and foot orthoses may influence these muscle-activation patterns. Objective To evaluate the influence of shoes and foot orthoses on onset times of lower extremity muscle activity in participants with CAI during the transition from double-legged to single-legged stance. Design Cross-sectional study. Setting Musculoskeletal laboratory. Patients or Other Participants A total of 15 people (9 men, 6 women; age = 21.8 ± 3.0 years, height = 177.7 ± 9.6 cm, mass = 72.0 ± 14.6 kg) who had CAI and wore foot orthoses were recruited. Intervention(s) A transition task from double-legged to single-legged stance was performed with eyes open and with eyes closed. Both limbs were tested in 4 experimental conditions: (1) barefoot (BF), (2) shoes only, (3) shoes with standard foot orthoses, and (4) shoes with custom foot orthoses (SCFO). Main Outcome Measure(s) The onset of activity of 9 lower extremity muscles was recorded using surface electromyography and a single force plate. Results Based on a full-factorial (condition, region, limb, vision) linear model for repeated measures, we found a condition effect (F3,91.8 = 9.39, P &lt; .001). Differences among experimental conditions did not depend on limb or vision condition. Based on a 2-way (condition, muscle) linear model within each region (ankle, knee, hip), earlier muscle-activation onset times were observed in the SCFO than in the BF condition for the peroneus longus (P &lt; .001), tibialis anterior (P = .003), vastus medialis obliquus (P = .04), and vastus lateralis (P = .005). Furthermore, the peroneus longus was activated earlier in the shoes-only (P = .02) and shoes-with-standard-foot-orthoses (P = .03) conditions than in the BF condition. No differences were observed for the hip muscles. Conclusions Earlier onset of muscle activity was most apparent in the SCFO condition for ankle and knee muscles but not for hip muscles during the transition from double-legged to single-legged stance. These findings might help clinicians understand how shoes and foot orthoses can influence neuromuscular control in participants with CAI.

Eversion Strength and Surface Electromyography Measures With and Without Chronic Ankle Instability Measured in 2 Positions

2017 ◽  
Vol 38 (7) ◽  
pp. 769-778 ◽  
Author(s):  
Lindsy Donnelly ◽  
Luke Donovan ◽  
Joseph M. Hart ◽  
Jay Hertel
Keyword(s):  
Surface Electromyography ◽  
Sagittal Plane ◽  
Ankle Instability ◽  
Chronic Ankle Instability ◽  
Control Group ◽  
Neutral Position ◽  
Healthy Controls ◽  
Healthy Group ◽  
Peroneus Longus ◽  
And Control

Background: Individuals with chronic ankle instability (CAI) have demonstrated strength deficits compared to healthy controls; however, the influence of ankle position on force measures and surface electromyography (sEMG) activation of the peroneus longus and brevis has not been investigated. The purpose of this study was to compare sEMG amplitudes of the peroneus longus and brevis and eversion force measures in 2 testing positions, neutral and plantarflexion, in groups with and without CAI. Methods: Twenty-eight adults (19 females, 9 males) with CAI and 28 healthy controls (19 females, 9 males) participated. Hand-held dynamometer force measures were assessed during isometric eversion contractions in 2 testing positions (neutral, plantarflexion) while surface sEMG amplitudes of the peroneal muscles were recorded. Force measures were normalized to body mass, and sEMG amplitudes were normalized to a resting period. Results: The group with CAI demonstrated less force when compared to the control group ( P < .001) in both the neutral and plantarflexion positions: neutral position, CAI: 1.64 Nm/kg and control: 2.10 Nm/kg) and plantarflexion position, CAI: 1.40 Nm/kg and control: 1.73 Nm/kg). There were no differences in sEMG amplitudes between the groups or muscles ( P > .05). Force measures correlated with both muscles’ sEMG amplitudes in the healthy group (neutral peroneus longus: r = 0.42, P = .03; plantarflexion peroneus longus: r = 0.56, P = .002; neutral peroneus brevis: r = 0.38, P = .05; plantarflexion peroneus longus: r = 0.40, P = .04), but not in the group with CAI ( P > .05). Conclusions: The group with CAI generated less force when compared to the control group during both testing positions. There was no selective activation of the peroneal muscles with testing in both positions, and force output and sEMG activity was only related in the healthy group. Clinical relevance: Clinicians should assess eversion strength and implement strength training exercises in different sagittal plane positions and evaluate for other pathologies that may contribute to reduced eversion strength in patients with CAI. Level of Evidence: Level III, cross-sectional

Acute Effect of Ankle Kinesio™ Taping on Lower-Limb Biomechanics During Single-Legged Drop Landing

2020 ◽  
pp. 1-8
Author(s):  
Javad Sarvestan ◽  
Alan R. Needle ◽  
Peyman Aghaie Ataabadi ◽  
Zuzana Kovačíková ◽  
Zdeneˇk Svoboda ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscle Activity ◽  
College Athletes ◽  
Ankle Instability ◽  
Dynamic Balance ◽  
Chronic Ankle Instability ◽  
Medial Gastrocnemius ◽  
Ground Contact ◽  
Lateral Gastrocnemius ◽  
Peroneus Longus

Context: Chronic ankle instability is documented to be followed by a recurrence of giving away episodes due to impairments in mechanical support. The application of ankle Kinesiotaping (KT) as a therapeutic intervention has been increasingly raised among athletes and physiotherapists. Objectives: This study aimed to investigate the impacts of ankle KT on the lower-limb kinematics, kinetics, dynamic balance, and muscle activity of college athletes with chronic ankle instability. Design: A crossover study design. Participants: Twenty-eight college athletes with chronic ankle sprain (11 females and 17 males, 23.46 [2.65] y, 175.36 [11.49] cm, 70.12 [14.11] kg) participated in this study. Setting: The participants executed 3 single-leg drop landings under nontaped and ankle Kinesio-taped conditions. Ankle, knee, and hip kinematics, kinetics, and dynamic balance status and the lateral gastrocnemius, medial gastrocnemius, tibialis anterior, and peroneus longus muscle activity were recorded and analyzed. Results: The application of ankle KT decreased ankle joint range of motion (P = .039) and angular velocities (P = .044) in the sagittal plane, ground reaction force rate of loading (P = .019), and mediolateral time to stability (P = .035). The lateral gastrocnemius (0.002) and peroneus longus (0.046) activity amplitudes also experienced a significant decrease after initial ground contact when the participants’ ankles were taped, while the application of ankle KT resulted in an increase in the peroneus longus (0.014) activity amplitudes before initial ground contact. Conclusions: Ankle lateral supports provided by KT potentially decreases mechanical stresses applied to the lower limbs, aids in dynamic balance, and lowers calf muscle energy consumption; therefore, it could be offered as a suitable supportive means for acute usage in athletes with chronic ankle instability.

scholarly journals PENGARUH KEMAMPUAN PENGELOLAAN TATA RUANG PEMUKIMAN BANTARAN SUNGAI DAN GENDER TERHADAP NEW INVIRONMENTAL PARADIGM (NEP)

2017 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Bahrawi Bahrawi ◽  
Diana Vivanti ◽  
Yusriani Sapta Dewi
Keyword(s):  
Interaction Effect ◽  
Significant Interaction ◽  
Significant Interaction Effect ◽  
Research Results ◽  
Significant Difference ◽  
Resilience Management ◽  
And Gender ◽  
New Environmental Paradigm

The objective of this research is to find out the effect of Capabilities OF Resilience management of river (CRMR) and gender (G) on new Environmental Paradigm (NEP).  An expost facto method has been used by selecting 19 sample for each cell. Reliability of CRMR was .878, and New Environmental Paradigm (NEP) was .91. Data analyzed by two-way ANOVA. Research results revealed that there was new environmental paradigm significant difference between those people who have high capabilities of resilience management of river and low capabilities of resilience management of river . Moreover, there was significant interaction effect between Capabilities OF Resilience management of river (CRMR) and gender (G) on New Environmental paradigm (NEP)

scholarly journals Emotional Maturity of Pharmaceutical and Engineering Company Employees

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Jashvantbhai B. Devda ◽  
Dr. S.M. Makvana
Keyword(s):  
Interaction Effect ◽  
Significant Interaction ◽  
Significant Interaction Effect ◽  
Emotional Maturity ◽  
Post Graduate ◽  
Engineering Company ◽  
Significant Difference ◽  
Result Show ◽  
Test Result ◽  
Better Than

Aim of the research is to find out the emotional maturity among pharmaceutical and engineering company employees so investigator selected three groups one is type of organization, second is category of employee and third is education qualification, the groups have 300 peoples. In each group has 150 pharmaceutical employees and other one groups has 150 engineering employees. Scale was use for data collection is personal datasheet and Emotional quotient test scale developed by dilipsingh and nkchadha (2003), 2x2x3 factorial design was used and data were analysis by ‘F’ test. Result show, There is significant difference between the emotional maturity among pharmaceutical and engineering company employees. The emotional maturity of engineering company employees is better than pharmaceutical company employees. There is no significant difference between the emotional maturity among manager and worker of pharmaceutical and engineering company employees. There is significant difference between the emotional maturity among post-graduate, graduate and diploma of pharmaceutical and engineering company employees. The emotional maturity of post-graduate employee is better than graduate, the diploma holder employee is better than graduate and the post-graduate employee is better than diploma holder employee. There is no significant interaction effect of the emotional maturity among types of organization and category of employees of pharmaceutical and engineering company employees. There is no significant interaction effect of the emotional maturity among types of organization and education qualification of pharmaceutical and engineering company employees. There is significant interaction effect of the emotional maturity among category of employee and education qualification of pharmaceutical and engineering company employees. There is significant interaction effect of the emotional maturity among types of organization, category of employees and education qualification of pharmaceutical and engineering company employees.

The Effect of “Anonymous Reviewer”: A Study of Anonymity, Affect Intensity, and Message Valence in the Cyberspace

2017 ◽  
Vol 36 (5) ◽  
pp. 504-524 ◽  
Author(s):  
Cheng Hong ◽  
Cong Li
Keyword(s):  
Interaction Effect ◽  
Significant Interaction ◽  
Message Processing ◽  
Affect Intensity ◽  
Significant Interaction Effect ◽  
Negative Valence ◽  
Processing Depth ◽  
Positive Message ◽  
Significant Difference ◽  
Negative Messages

This study aims to illustrate how anonymity, together with affect intensity and message valence, affects message receivers’ responses. A 2 (anonymous vs. revealed identity) × 2 (low vs. high affect intensity) × 2 (positive vs. negative valence) between-subjects experiment was conducted. It was found that when message affect intensity was low, an anonymous message was more effective in generating trust toward the message and message processing depth than a message with an identified sender. However, such a difference was insignificant when affect intensity was high. Moreover, a significant interaction effect between affect intensity and message valence was found on message processing depth. When affect intensity was high, a positive message elicited more message processing. When affect intensity was low, there was no significant difference between positive and negative messages.

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