The Effect of Ankle Kinesio Tape on Ankle Muscle Activity During a Drop Landing

2015 ◽  
Vol 24 (4) ◽  
pp. 391-397 ◽  
Author(s):  
Shirleeah D. Fayson ◽  
Alan R. Needle ◽  
Thomas W. Kaminski
Keyword(s):  
Outcome Measures ◽  
Muscle Activity ◽  
Tibialis Anterior ◽  
Previous History ◽  
Neuromuscular Control ◽  
Drop Jump ◽  
Joint Stability ◽  
Kinesio Tape ◽  
Time To Peak ◽  
History Of

Context:The use of Kinesio Tape among health care professional has grown recently in efforts to efficiently prevent and treat joint injuries. However, limited evidence exists regarding the efficacy of this technique in enhancing joint stability and neuromuscular control.Objective:To determine how Kinesio Tape application to the ankle joint alters forces and muscle activity during a drop-jump maneuver.Design:Single-group pretest– posttest.Setting:University laboratory.Subjects:22 healthy adults with no previous history of ankle injury.Interventions:Participants were instrumented with electromyography on the lower-leg muscles as they jumped from a 35-cm platform onto force plates. Test trials were performed without tape (BL), immediately after application of Kinesio Tape to the ankle (KT-I), and after 24 h of continued use (KT-24).Main Outcome Measures:Peak ground-reaction forces (GRFs) and time to peak GRF were compared across taping conditions, and the timing and amplitude of muscle activity from the tibialis anterior, peroneus longus, and lateral gastrocnemius were compared across taping conditions.Results:No significant differences in amplitude or timing of GRFs were observed (P > .05). However, muscle activity was observed to decrease from BL to KT-I in the tibialis anterior (P = .027) and from BL to KT-24 in the PL (P = .022).Conclusions:The data suggest that Kinesio Tape decreases muscle activity in the ankle during a drop-jump maneuver, although no changes in GRFs were observed. This is contrary to the proposed mechanisms of Kinesio Tape. Further research might investigate how this affects participants with a history of injury.

Difference in Ratio of Evertor to Invertor Activity Between the Dominant and Nondominant Legs During Simulated Lateral Ankle Sprain

2013 ◽  
Vol 22 (4) ◽  
pp. 272-278 ◽  
Author(s):  
Adam C. Knight ◽  
Wendi H. Weimar
Keyword(s):  
Outcome Measures ◽  
Ankle Sprain ◽  
Muscle Activity ◽  
Repeated Measures ◽  
Previous History ◽  
Physically Active ◽  
Lateral Ankle ◽  
History Of ◽  
University Laboratory

Context:The dominant and nondominant legs respond asymmetrically during landing tasks, and this difference may occur during an inversion perturbation and provide insight into the role of ankle-evertor and -invertor muscle activity.Objective:To determine if there is a difference in the ratio of evertor to invertor activity between the dominant and nondominant legs and outer-sole conditions when the ankle is forced into inversion.Design:Repeated-measures single-group design.Setting:University laboratory.Participants:15 physically active healthy volunteers with no previous history of an ankle sprain or lower extremity surgery or fracture.Interventions:An outer sole with fulcrum was used to cause 25° of inversion at the subtalar joint after landing from a 27-cm step-down task. Participants performed 10 fulcrum trials on both the dominant and nondominant leg.Main Outcome Measures:The ratio of evertor to invertor muscle activity 200 ms before and 200 ms after the inversion perturbation was measured using electromyography. This ratio was the dependent variable. Independent variables included outer-sole condition (fulcrum, flat), leg (dominant, nondominant), and time (prelanding, postlanding). The data were analyzed with separate 2-way repeated-measures ANOVA, 1 for the prelanding ratios and 1 for the postlanding ratios.Results:For the postlanding ratios, the fulcrum outer sole had a significantly greater (P < .05) ratio than the flat outer sole, and the nondominant leg had a significantly greater (P < .05) ratio than the dominant leg.Conclusions:These results indicate that a greater evertor response is produced when the ankle is forced into inversion, and a greater response is produced for the nondominant leg, which may function better during a postural-stabilizing task than the dominant leg.

Lower-Extremity Muscle Activity During Aquatic and Land Treadmill Running at the Same Speeds

2014 ◽  
Vol 23 (2) ◽  
pp. 107-122 ◽  
Author(s):  
W. Matthew Silvers ◽  
Eadric Bressel ◽  
D. Clark Dickin ◽  
Garry Killgore ◽  
Dennis G. Dolny
Keyword(s):  
Lower Extremity ◽  
Outcome Measures ◽  
Muscle Activity ◽  
Tibialis Anterior ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Swing Phase ◽  
Treadmill Running ◽  
Vastus Medialis ◽  
Lower Extremity Muscle

Context:Muscle activation during aquatic treadmill (ATM) running has not been examined, despite similar investigations for other modes of aquatic locomotion and increased interest in ATM running.Objectives:The objectives of this study were to compare normalized (percentage of maximal voluntary contraction; %MVC), absolute duration (aDUR), and total (tACT) lower-extremity muscle activity during land treadmill (TM) and ATM running at the same speeds.Design:Exploratory, quasi-experimental, crossover design.Setting:Athletic training facility.Participants:12 healthy recreational runners (age = 25.8 ± 5 y, height = 178.4 ± 8.2 cm, mass = 71.5 ± 11.5 kg, running experience = 8.2 ± 5.3 y) volunteered for participation.Intervention:All participants performed TM and ATM running at 174.4, 201.2, and 228.0 m/min while surface electromyographic data were collected from the vastus medialis, rectus femoris, gastrocnemius, tibialis anterior, and biceps femoris.Main Outcome Measures:For each muscle, a 2 × 3 repeated-measures ANOVA was used to analyze the main effects and environment–speed interaction (P ≤ .05) of each dependent variable: %MVC, aDUR, and tACT.Results:Compared with TM, ATM elicited significantly reduced %MVC (−44.0%) but increased aDUR (+213.1%) and tACT (+41.9%) in the vastus medialis, increased %MVC (+48.7%) and aDUR (+128.1%) in the rectus femoris during swing phase, reduced %MVC (−26.9%) and tACT (−40.1%) in the gastrocnemius, increased aDUR (+33.1%) and tACT (+35.7%) in the tibialis anterior, and increased aDUR (+41.3%) and tACT (+29.2%) in the biceps femoris. At faster running speeds, there were significant increases in tibialis anterior %MVC (+8.6−15.2%) and tACT (+12.7−17.0%) and rectus femoris %MVC (12.1−26.6%; swing phase).Conclusion:No significant environment–speed interaction effects suggested that observed muscle-activity differences between ATM and TM were due to environmental variation, ie, buoyancy (presumed to decrease %MVC) and drag forces (presumed to increase aDUR and tACT) in the water.

Untersuchung zur Wirkung von Kinesio-Tape und IQ-Tape auf die neuromuskuläre Aktivität beim Joggen, Treppensteigen und Drop-Jump

2020 ◽  
Vol 34 (02) ◽  
pp. 96-104
Author(s):  
Slavko Rogan ◽  
Heiner Baur
Keyword(s):  
Body Mass Index ◽  
Tibialis Anterior ◽  
Vastus Lateralis ◽  
Vastus Medialis ◽  
Drop Jump ◽  
Kinesio Tape ◽  
Gastrocnemius Medialis ◽  
Subject Design ◽  
Drop Jumps ◽  
G Ratio

ZusammenfassungHintergrund Applikationen mit elastischem Tape werden positive Wirkungen auf die Bewegung zugeschrieben. Unter anderem werden Attribute wie stoffwechselanregend, entstauend, kräftigend und schmerzlindernd genannt. Das Ziel dieser Interventionsstudie mit einem Within-Subject-Design war die Untersuchung verschiedener elastischer Tapes (Kinesiotape – KT, IQ-Tape – IQ, ohne Tape: OT) auf die neuromuskuläre Aktivierung der Beuge- und Streckkette der unteren Extremität während des Joggens, des Treppensteigens und bei Drop Jumps. Probanden/Methodik Achtzehn gesunde Erwachsene (5 Männer und 13 Frauen) mit einem Durchschnittsalter von 26,3 ± 3,6 Jahren und einem Body-Mass-Index von 22,3 ± 0,7 kg/m2 wurden rekrutiert. Die Teilnehmer absolvierten Laufintervalle mit 10 km/h, 12 km/h und 15 km/h, Treppensteigen und Drop Jumps (10 Versuche). Die Muskelaktivierung des M. vastus medialis und M. vastus lateralis, des M. bizeps femoris, des M. semitendionosus, des M. tibialis anterior, M. gastrocnemius medialis und lateralis wurden erhoben, um das Verhältnis der Muskelaktivierung des M. tibialis anterior zu M. gastrocnemius medialis und lateralis (T/G-ratio) und des M. vastus medialis und lateralis zum M. bizeps femoris und M. semitendinosus (V/I-ratio) zum Zeitpunkt vor (–150 bis 0 ms pre), während (0–30 ms post) und von 30 ms bis 150 ms post der ersten Bodenkontaktaufnahme mit Hilfe elektromyografischer Messungen darzustellen. Die statistische Prüfung erfolgte mittels des nonparametrischen L-Puri-Sen-Verfahrens. Das Signifikanzniveau wurde auf p < 0,05 gesetzt. Ergebnisse Zwei Probanden schieden während der Datenaufnahme aus der Studie aus. Damit konnten von 16 Probanden Daten analysiert werden. Beim Treppenheruntersteigen zeigt IQT in der Voraktivierung (–150 bis 0 ms) vor dem ersten Bodenkontakt einen signifikant erhöhten T/G-ratio im Vergleich zu OT (p = 0,01). Die restlichen Vergleiche von Applikationen mit KT, IQT und OT ergaben keine signifikanten Unterschiede (p > 0,05). Schlussfolgerung Es kann davon ausgegangen werden, dass Kinesiotape – KT und IQ-Tape – IQ keine relevanten detektierbaren Änderungen der Muskelaktivierung bei gesunden Personen hervorrufen. Zukünftige Studien sollten Patienten einschließen, die eine pathologisch veränderte neuromuskuläre Kontrolle aufweisen.

The Relationship Between Joint Stiffness and Muscle Activity in Unstable Ankles and Copers

2017 ◽  
Vol 26 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Alan R. Needle ◽  
Thomas W. Kaminski ◽  
Jochen Baumeister ◽  
Jill S. Higginson ◽  
William B. Farquhar ◽  
...  
Keyword(s):  
Outcome Measures ◽  
Tibialis Anterior ◽  
Muscle Activation ◽  
Joint Stiffness ◽  
Ankle Injury ◽  
Group Differences ◽  
Injury Rehabilitation ◽  
Ankle Stiffness ◽  
History Of ◽  
The Relationship

Context:Rolling sensations at the ankle are common after injury and represent failure in neural regulation of joint stiffness. However, deficits after ankle injury are variable and strategies for optimizing stiffness may differ across patients.Objective:To determine if ankle stiffness and muscle activation differ between patients with varying history of ankle injury.Patients:Fifty-nine individuals were stratified into healthy (CON, n = 20), functionally unstable (UNS, n = 19), and coper (COP, n = 20) groups.Main Outcome Measures:A 20° supination perturbation was applied to the ankle as position and torque were synchronized with activity of tibialis anterior, peroneus longus, and soleus. Subjects were tested with muscles relaxed, while maintaining 30% muscle activation, and while directed to react and resist the perturbation.Results:No group differences existed for joint stiffness (F = 0.07, P = .993); however, the UNS group had higher soleus and less tibialis anterior activation than the CON group during passive trials (P < .05). In addition, greater early tibialis anterior activation generally predicted higher stiffness in the CON group (P ≤ .03), but greater soleus activity improved stiffness in the UNS group (P = .03).Conclusion:Although previous injury does not affect the ability to stiffen the joint under laboratory conditions, strategies appear to differ. Generally, the COP has decreased muscle activation, whereas the UNS uses greater plantar-flexor activity. The results of this study suggest that clinicians should emphasize correct preparatory muscle activation to improve joint stiffness in injury-rehabilitation efforts.

Difference in Response Latency of the Peroneus Longus Between the Dominant and Nondominant Legs

2011 ◽  
Vol 20 (3) ◽  
pp. 321-332 ◽  
Author(s):  
Adam C. Knight ◽  
Wendi H. Weimar
Keyword(s):  
Outcome Measures ◽  
Ankle Sprain ◽  
Muscle Activity ◽  
Repeated Measures ◽  
Previous History ◽  
Ankle Sprains ◽  
Physically Active ◽  
Lateral Ankle ◽  
Peroneus Longus ◽  
The Moment

Context:The latency of the peroneus longus in response to an inversion perturbation is a key component in the prevention of lateral ankle sprains. In addition, the dominant ankle is sprained more frequently than the nondominant ankle, but the cause of this has not been examined.Objective:To investigate the combination of these 2 research-supported statements, the purpose of this study was to use an inversion perturbation that replicates the mechanism of a lateral ankle sprain to determine whether there is a difference in the latency of the peroneus longus between the dominant and nondominant legs.Design:Repeated-measures single-group design.Setting:University laboratory.Participants:15 physically active healthy volunteers with no previous history of an ankle sprain or lower extremity surgery or fracture.Interventions:Outer sole with fulcrum was used to cause 25° of inversion at the subtalar joint on landing from a 27-cm step-down task. Participants performed 10 trials on both the dominant and nondominant leg.Main Outcome Measures:2 latency measures of the peroneus longus of both the dominant and nondominant leg, calculated as the amount of time from the moment of touchdown of the fulcrum until muscle activity exceeded 5 and 10 SD above baseline muscle activity.Results:The latency of the peroneus longus of the nondominant leg was significantly shorter when using both 5 SD (F1,14 = 9.34, P = .009, d = .895) and 10 SD (F1,14 = 18.56, P = .001, d = .920) above baseline muscle activity.Conclusions:This difference in latency may be a result of the different demands placed on the dominant and nondominant legs during activity and may predispose the dominant ankle to a greater number of ankle sprains than the nondominant ankle.

Hip- and Trunk-Muscle Activation Patterns During Perturbed Gait

2011 ◽  
Vol 20 (3) ◽  
pp. 287-295 ◽  
Author(s):  
Justin M. Stanek ◽  
Todd A. McLoda ◽  
Val J. Csiszer ◽  
A.J. Hansen
Keyword(s):  
Outcome Measures ◽  
Muscle Activity ◽  
Repeated Measures ◽  
Muscle Activation ◽  
Gluteus Maximus ◽  
Rectus Femoris ◽  
Kinetic Chain ◽  
Time To Peak ◽  
Muscle Activation Patterns ◽  
Unexpected Perturbation

Context:Selected muscles in the kinetic chain may help explain the body’s ability to avert injury during unexpected perturbation.Objective:To determine the activation of the ipsilateral rectus femoris (RF), gluteus maximus (MA), gluteus medius (ME), and contralateral external obliques (EO) during normal and perturbed gait.Design:Single-factor, repeated measures.Setting:University research laboratory.Participants:32 physically active, college-age subjects.Intervention:Subjects walked a total of 20 trials the length of a 6.1-m custom runway capable of releasing either side into 30° of unexpected inversion. During 5 trials, the platform released into inversion.Main Outcome Measures:Average, peak, and time to peak EMG were analyzed across the 4 muscles, and comparisons were made between the walking trials and perturbed trials.Results:Significantly higher average and peak muscle activity were noted for the perturbed condition for RF, MA, and EO. Time to peak muscle activity was faster during the perturbed condition for the EO.Conclusion:Rapid contractions of selected postural muscles in the kinetic chain help explain the body’s reaction to unexpected perturbation.

scholarly journals Changes in muscle coactivation during running: a comparison between two techniques, forefoot vs rearfoot

2021 ◽  
Vol 38 (5) ◽  
pp. 332-336
Author(s):  
Daniel Araya ◽  
Juan López ◽  
Germán Villalobos ◽  
Rodrigo Guzmán-Venegas ◽  
Oscar Valencia
Keyword(s):  
Muscle Activity ◽  
Surface Electromyography ◽  
Tibialis Anterior ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Medial Gastrocnemius ◽  
Initial Contact ◽  
Joint Stability ◽  
Paired Data ◽  
Lateral Gastrocnemius

Introduction: Surface electromyography has been a technique used to describe muscle activity during running. However, there is little literature that analyses the behaviour of muscle coactivation in runners, describing the effect between two techniques associated with the initial contact, such as the use of rearfoot (RF) and forefoot (FF). Material and method: The purpose of this study was to compare muscle coactivation levels developed in the lower limb during two running techniques, FF vs RF. Fourteen amateur runners were evaluated (eight men, six women; age= 23.21 ± 3.58 years, mass= 63.89 ± 8.13 kg, height= 1.68 ± 0.08m). Surface electromyography was used to measure muscle activity during both running techniques evaluated on a treadmill, considering the muscle pairs: Rectus femoris- Biceps femoris (RFe-BF), Lateral Gastrocnemius–Tibialis Anterior (LG-TA), and Medial Gastrocnemius - Tibialis Anterior (MG-TA). These were calculated in three windows considering ten running cycles (0-5%, 80-100%, and 0-100%). To compare FF vs RF t-student test for paired data was used. Results: It was observed significant differences in the MG-TA pair (FF= 18.42 ± 11.84% vs RF = 39.05 ± 13.28%, p = 0.0018 during 0-5%, and RFe-BF pair (FF = 42.38 ± 18.11% vs RF = 28.37 ± 17.2%, p = 0.0331) during 80-100% of the race. Conclusion: Our findings show that the behaviour of muscle coactivation is different between FF vs RF techniques if we analyze little windows in the running cycle. This could be associated with an increase in the joint stability between these short intervals, represented in the initial and final regions of the running cycle.

scholarly journals Muscle Synergies in People With Chronic Ankle Instability During Anticipated and Unanticipated Cutting Tasks

2021 ◽  
Author(s):  
Hoon Kim ◽  
Riann Palmieri-Smith ◽  
Kristof Kipp
Keyword(s):  
Tibialis Anterior ◽  
Ankle Instability ◽  
Neuromuscular Control ◽  
Chronic Ankle Instability ◽  
Medial Gastrocnemius ◽  
Muscle Synergies ◽  
Healthy Controls ◽  
Joint Stability ◽  
Cross Sectional ◽  
Weighting Coefficients

Abstract Context: Although neuromuscular deficits in people with chronic ankle instability (CAI) have been identified, previous studies mostly investigated the activation of multiple muscles in isolation. Investigating muscle synergies in people with CAI would provide information about the coordination and control of neuromuscular activation strategies and could hold important information for understanding and rehabilitating neuromuscular deficits in this population. Objective: The purpose of this study was to investigate muscle synergies in people with CAI and healthy controls as they perform different cutting tasks. Design: Cross-sectional study Setting: Laboratory Participants: Eleven people with CAI (22 ± 3 years, 1.68 ± 0.11 m, 69.0 ± 19.1 kg) and 11 healthy controls (CON) (23 ± 4 years, 1.74 ± 0.11 m, 66.8 ± 15.5 kg) participated in the current study. Main Outcome Measures: Muscle synergies were extracted from the EMG of the soleus, medial gastrocnemius, lateral gastrocnemius, tibialis anterior, and fibularis longus muscles during anticipated and unanticipated cutting tasks. The number of synergies, activation coefficients, and muscle-specific weighting coefficients were compared between groups and across tasks. Results: The number of muscle synergies were the same for each group and task. The CAI group exhibited significantly greater (p = 0.023) tibialis anterior weighting coefficients within Synergy 1 compared to the CON group. In addition, both groups exhibited greater fibularis longus (p = 0.029) weighting coefficients within Synergy 2 during unanticipated cutting compared to anticipated cutting. Conclusion: These results suggest that while both groups used a neuromuscular control strategy of similar complexity / dimensionality to perform the cutting tasks, people with CAI exhibited different muscle-specific weightings characterized by greater emphasis on tibialis anterior function within Synergy 1, which may reflect an effort to increase joint stability to compensate for the presence of ankle instability.

The Effect of Muscle Fatigue on Muscle Force-Couple Activation of the Shoulder

2001 ◽  
Vol 10 (4) ◽  
pp. 246-256 ◽  
Author(s):  
Timothy J. Henry ◽  
Scott M. Lephart ◽  
Jorge Giraldo ◽  
David Stone ◽  
Freddie H. Fu
Keyword(s):  
Muscle Fatigue ◽  
Outcome Measures ◽  
Muscle Force ◽  
Glenohumeral Joint ◽  
Previous History ◽  
Type Design ◽  
Before And After ◽  
History Of ◽  
Male Subjects ◽  
Force Couple

Context:Muscle fatigue is an important concept in regard to the muscle function of the shoulder joint. Its effect on the muscle force couples of the glenohumeral joint has not been fully identified.Objective:To examine the effects of muscle fatigue on muscle force-couple activation in the normal shoulder.Design:Pretest, posttest.Patients:Ten male subjects, age 18–30 years, with no previous history of shoulder problems.Main Outcome Measures:EMG (area) values were assessed for the anterior and middle deltoid, subscapularis, and infraspinatus muscles during 4 dynamic stabilizing exercises before and after muscle fatigue. The exercises examined were a push-up, horizontal abduction, segmental stabilization, and rotational movement on a slide board.Results:No significant differences were observed for any of the muscles tested.Conclusions:The results of our study indicate that force-couple coactivation of the glenohumeral joint is not significantly altered after muscle fatigue.

Quadriceps Concentric EMG Activity Is Greater than Eccentric EMG Activity during the Lateral Step-Up Exercise

2000 ◽  
Vol 9 (2) ◽  
pp. 124-134 ◽  
Author(s):  
Angie Selseth ◽  
Marilyn Dayton ◽  
Mitchell L. Cordova ◽  
Christopher D. Ingersoll ◽  
Mark A. Merrick
Keyword(s):  
Muscle Activity ◽  
Repeated Measures ◽  
Muscle Activation ◽  
Vastus Lateralis ◽  
Previous History ◽  
Emg Activity ◽  
Maximal Voluntary Isometric Contraction ◽  
Concentric Contractions ◽  
History Of ◽  
Integrated Electromyogram

Purpose:To analyze vastus medialis obliquus (VMO) and vastus lateralis (VL) muscle activity during the concentric and eccentric phases of a lateral step-up exercise.Design:Repeated-measures. Dependent variable: the integrated electromyogram measured as a percentage of the maximal voluntary isometric contraction of the VMO and VL muscles. Independent variable: muscle contraction with 2 levels (concentric and eccentric).Subjects:Twenty-three volunteers with no previous history of knee surgery or anterior knee pain.Methods:Surface electrodes were positioned over the VMO and VL, and electromyographic data were collected during the exercise.Results:The 2 muscle phases of contraction were different when both dependent variables were considered simultaneously (F2,7= 33.2,P< .001). Concentric contractions produced greater muscle activity for VL (P< .05) and VMO (P< .05).Conclusions:Because concentric contractions produce greater activity than eccentric contractions do during the lateral step-up exercise, they provide a stronger stimulus for muscle activation, which might result in greater muscle strength gains.

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