EFFECTS OF KINESIO® TAPING ON DYNAMIC POSTURAL CONTROL FOLLOWING FATIGUE INDUCTION

2016 ◽  
Vol 78 (6-7) ◽  
Author(s):  
Noh Zulfikri ◽  
Saiful Adli Bukry ◽  
Maria Justine
Keyword(s):  
Postural Control ◽  
Significant Interaction ◽  
Controlled Trial ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Medial Gastrocnemius ◽  
Main Effect ◽  
Group B ◽  
Posterior Position ◽  
Anterior Posterior

This study aimed to determine the effects of Kinesio® taping (KT) on dynamic postural control following fatigue induction. It is hypothesized that the application of KT limits the effects of fatigue on dynamic postural control. This study used a randomized controlled trial recruited 32 male recreational athletes, randomized to one of the two groups (Group A: KT and fatigue and Group B: KT and no fatigue). Fatigue was induced using the adapted Functional Agility Short Term Fatigue Protocol (FAST-FP). The rectus femoris of quadriceps, biceps femoris of the hamstring and medial gastrocnemius of the dominant leg were taped. The dynamic postural control was assessed pre and post fatigue. A significant interaction was observed between the group and time for the anterior-posterior position (p=0.03, ηp2=0.21) while non-significant interaction was observed in the lateral symmetry (p=0.84, ηp2=0.001). A significant main effect of time was observed for anterior-posterior position (p>0.05, ηp2=0.15) while non-significant for the lateral symmetry (p=0.65, ηp2=0.007). For the main effect of the two groups was not significant for the anterior-posterior position (p=0.42, ηp2=0.02) and lateral symmetry (p=0.73, ηp2=0.004). In conclusion, the diminishing effect of fatigue on the anterior-posterior position was observed. Moreover, KT application does not limit the effects of fatigue on the dynamic postural control.  

scholarly journals Relationship between Muscular Activity and Postural Control Changes after Proprioceptive Focal Stimulation (Equistasi®) in Middle-Moderate Parkinson’s Disease Patients: An Explorative Study

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 560
Author(s):  
Fabiola Spolaor ◽  
Marco Romanato ◽  
Guiotto Annamaria ◽  
Antonella Peppe ◽  
Leila Bakdounes ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Control ◽  
Quantitative Estimation ◽  
Force Plate ◽  
Muscular Activity ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Eyes Open ◽  
Romberg Test

The aim of this study was to investigate the effects of Equistasi®, a wearable device, on the relationship between muscular activity and postural control changes in a sample of 25 Parkinson’s disease (PD) subjects. Gait analysis was carried out through a six-cameras stereophotogrammetric system synchronized with two force plates, an eight-channel surface electromyographic system, recording the activity of four muscles bilaterally: Rectus femoris, tibialis anterior (TA), biceps femoris, and gastrocnemius lateralis (GL). The peak of the envelope (PoE) and its occurrence within the gait cycle (position of the peak of the envelope, PPoE) were calculated. Frequency-domain posturographic parameters were extracted while standing still on a force plate in eyes open and closed conditions for 60 s. After the treatment with Equistasi®, the mid-low (0.5–0.75) Hz and mid-high (0.75–1 Hz) components associated with the vestibular and somatosensory systems, PoE and PPoE, displayed a shift toward the values registered on the controls. Furthermore, a correlation was found between changes in proprioception (power spectrum frequencies during the Romberg Test) and the activity of GL, BF (PoE), and TA (PPoE). Results of this study could provide a quantitative estimation of the effects of a neurorehabilitation device on the peripheral and central nervous system in PD.

scholarly journals Sex Differences, Hormone Fluctuations, Ankle Stability, and Dynamic Postural Control

2012 ◽  
Vol 47 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Hayley Ericksen ◽  
Phillip A. Gribble
Keyword(s):  
Menstrual Cycle ◽  
Postural Control ◽  
Repeated Measures ◽  
Balance Test ◽  
Healthy Women ◽  
Ankle Stability ◽  
Ankle Arthrometer ◽  
Main Effect ◽  
Star Excursion Balance Test ◽  
Anterior Posterior

Context: Hormonal fluctuation as a risk factor in anterior cruciate ligament injury has been investigated with conflicting results. However, the influence of hormone fluctuations on ankle laxity and function has not been thoroughly examined. Objective: To examine the potential hormone contributions to ankle laxity and dynamic postural control during the preovulatory and postovulatory phases of the menstrual cycle using an ankle arthrometer and the Star Excursion Balance Test in healthy women. The cohort group consisted of male control participants. Design: Cohort study. Setting: Research laboratory. Patients or Other Participants: Twenty healthy women (age = 23.8 ± 6.50 years, height = 163.88 ± 8.28 cm, mass = 63.08 ± 12.38 kg) and 20 healthy men (age = 23.90 ± 4.15 years, height = 177.07 ± 7.60 cm, mass = 80.57 ± 12.20 kg). Intervention(s): Ankle stability was assessed with anterior-posterior and inversion-eversion loading. Dynamic postural control was assessed with the posteromedial reaching distance of the Star Excursion Balance Test. Main Outcome Measure(s): Female participants used ovulation kits for 3 months to determine the time of ovulation; during their preovulatory and postovulatory phases, they were tested in the laboratory with an ankle arthrometer and the Star Excursion Balance Test. Male participants were tested on similar dates as controls. For each dependent variable, a time by side by sex repeated-measures analysis of variance was performed. Statistical significance was set a priori at P < .05. Results: For anterior-posterior laxity, a side main effect was noted (F1,38 = 10.93, P = .002). For inversion-eversion laxity, a sex main effect was seen (F1,38 = 10.75, P = .002). For the posteromedial reaching task, a sex main effect was demonstrated (F1,38 = 8.72, P = .005). No influences of time on the dependent variables were evident. Conclusions: Although women presented with more ankle inversion-eversion laxity and less dynamic postural control, hormonal fluctuations during the menstrual cycle (preovulatory compared with postovulatory) did not affect ankle laxity or dynamic postural control, 2 factors that are associated with ankle instability.

scholarly journals Metabolic Demand and Muscle Activation during Different Forms of Bodyweight Supported Locomotion in Men with Incomplete SCI

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Alyssa M. Fenuta ◽  
Audrey L. Hicks
Keyword(s):  
Body Weight ◽  
Muscle Activation ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Medial Gastrocnemius ◽  
Locomotor Training ◽  
Metabolic Demand ◽  
Metabolic Equivalents ◽  
Weight Support ◽  
Cord Injury

Body weight supported locomotor training uses neuroplasticity principles to improve recovery following a spinal cord injury (SCI). Steady state locomotion using the same body weight support (BWS) percent was compared in 7 males (42.6±4.29 years) with incomplete SCI and matched (gender, age) noninjured controls (42.7±5.4 years) using the Lokomat, Manual Treadmill, and ZeroG. The VO2000, Polar Heart Rate (HR) Monitor, and lower limb electromyography (EMG) electrodes were worn during the 2-minute sessions. Oxygen uptake (VO2) and HR were expressed as percentage of peak values obtained using progressive arm ergometry; VO2was also expressed relative to resting metabolic equivalents (METS). Filtered EMG signals from tibialis anterior (TA), rectus femoris (RF), biceps femoris (BF), and medial gastrocnemius (MG) were normalized to ZeroG stepping. The Lokomat required 30% of VO2peak (2METS) compared to ~54% (3METS) for Manual Treadmill and ZeroG sessions. HR was 67% of peak during Lokomat sessions compared to ~83% for Manual Treadmill and ZeroG. Muscle activation was higher in treadmill conditions compared to the ZeroG primarily due to increased BF activity. At the same level of BWS, locomotion using the Manual Treadmill or the ZeroG is more aerobically demanding than the Lokomat. Treadmill modalities encourage greater hip extensor activation compared to overground locomotion.

scholarly journals Lower Extremity Muscle Activity During a Women's Overhand Lacrosse Shot

2014 ◽  
Vol 41 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Brianna M. Millard ◽  
John A. Mercer
Keyword(s):  
Lower Extremity ◽  
Muscle Activity ◽  
Body Height ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Medial Gastrocnemius ◽  
Discrete Events ◽  
Warm Up ◽  
Lower Extremity Muscle ◽  
One Year

AbstractThe purpose of this study was to describe lower extremity muscle activity during the lacrosse shot. Participants (n=5 females, age 22±2 years, body height 162.6±15.2 cm, body mass 63.7±23.6 kg) were free from injury and had at least one year of lacrosse experience. The lead leg was instrumented with electromyography (EMG) leads to measure muscle activity of the rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and medial gastrocnemius (GA). Participants completed five trials of a warm-up speed shot (Slow) and a game speed shot (Fast). Video analysis was used to identify the discrete events defining specific movement phases. Full-wave rectified data were averaged per muscle per phase (Crank Back Minor, Crank Back Major, Stick Acceleration, Stick Deceleration). Average EMG per muscle was analyzed using a 4 (Phase) x 2 (Speed) ANOVA. BF was greater during Fast vs. Slow for all phases (p<0.05), while TA was not influenced by either Phase or Speed (p>0.05). RF and GA were each influenced by the interaction of Phase and Speed (p<0.05) with GA being greater during Fast vs. Slow shots during all phases and RF greater during Crank Back Minor and Major as well as Stick Deceleration (p<0.05) but only tended to be greater during Stick Acceleration (p=0.076) for Fast vs. Slow. The greater muscle activity (BF, RF, GA) during Fast vs. Slow shots may have been related to a faster approach speed and/or need to create a stiff lower extremity to allow for faster upper extremity movements.

scholarly journals Electromyography features during physical and imagined standing up in healthy young adults, Phitsanulok, Thailand

2020 ◽  
Vol 35 (1) ◽  
pp. 89-101
Author(s):  
Kanokwan Srisupornkornkool ◽  
Kanphajee Sornkaew ◽  
Kittithat Chatkanjanakool ◽  
Chayanit Ampairattana ◽  
Pariyanoot Pongtasom ◽  
...  
Keyword(s):  
Young Adults ◽  
Tibialis Anterior ◽  
Tibialis Anterior Muscle ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Voluntary Contraction ◽  
Medial Gastrocnemius ◽  
Content Type ◽  
Standing Up ◽  
Imagined Movement

PurposeTo compare the electromyography (EMG) features during physical and imagined standing up in healthy young adults.Design/methodology/approachTwenty-two participants (ages ranged from 20–29 years old) were recruited to participate in this study. Electrodes were attached to the rectus femoris, biceps femoris, tibialis anterior and the medial gastrocnemius muscles of both sides to monitor the EMG features during physical and imagined standing up. The %maximal voluntary contraction (%MVC), onset and duration were calculated.FindingsThe onset and duration of each muscle of both sides had no statistically significant differences between physical and imagined standing up (p > 0.05). The %MVC of all four muscles during physical standing up was statistically significantly higher than during imagined standing up (p < 0.05) on both sides. Moreover, the tibialis anterior muscle of both sides showed a statistically significant contraction before the other muscles (p < 0.05) during physical and imagined standing up.Originality/valueMuscles can be activated during imagined movement, and the patterns of muscle activity during physical and imagined standing up were similar. Imagined movement may be used in rehabilitation as an alternative or additional technique combined with other techniques to enhance the STS skill.

scholarly journals The Effect of Repetitive Rugby Scrummaging on Force Output and Muscle Activity

2017 ◽  
Vol 01 (03) ◽  
pp. E89-E93 ◽  
Author(s):  
Darryl Cochrane ◽  
Keegan Harnett ◽  
Nicolas Lopez-Villalobos ◽  
Jeremy Hapeta
Keyword(s):  
Force Production ◽  
Gluteus Maximus ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Mean Amplitude ◽  
Erector Spinae ◽  
Medial Gastrocnemius ◽  
Median Frequency ◽  
Force Output ◽  
Subsequent Performance

AbstractDuring rugby scrummaging, front row forwards encounter high levels of force that has been suggested to cause transient fatigue and is likely to reduce subsequent performance. However, little is known about the effect of repetitive scrummaging on force output and onset of fatigue. Twelve male front row forwards (21.5±2.3 yr; height 185.7±4.4 cm; body mass 108.5±7.1 kg) each performed three sets of five maximal-effort isometric scrums for 10 s, with 40 s rest separating each repetition; 2 min recovery was provided between each set. Force output and electromyography (EMG) of the right medial gastrocnemius (MG), biceps femoris (BF), gluteus maximus (GM), erector spinae (ES), rectus abdominis (RA), external oblique (EO), internal oblique (IO), and rectus femoris (RF) were assessed. There was no significant force decrement from performing 15 scrums and no fatigue was detected from EMG median frequency and mean amplitude. For training and practice purposes, coaches and trainers can be confident that 15 individual repetitive static scrums against a machine are unlikely to cause a reduction in force production and promote fatigue. However, the effect of rugby-related activities in conjunction with scrummaging requires further research to determine if transient fatigue is causal to scrummaging for subsequent performance.

scholarly journals Tensiomyographic Responses to Warm-Up Protocols in Collegiate Male Soccer Athletes

2021 ◽  
Vol 6 (4) ◽  
pp. 80
Author(s):  
Michael J. Redd ◽  
Tristan M. Starling-Smith ◽  
Chad H. Herring ◽  
Matt S. Stock ◽  
Adam J. Wells ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Warm Up ◽  
Performance Variables ◽  
Leg Muscles ◽  
Main Effect ◽  
Before And After ◽  
Main Effects ◽  
Knee Flexors

The mechanical properties of knee flexors and extensors in 15 collegiate male soccer players following different warm-up protocols [small-sided games (SSG), dynamic (DYN), and plyometric (PLY)] were evaluated. Tensiomyography (TMG) was used to assess contraction time (Tc), delay time (Td) and maximal displacement (Dm) of the rectus femoris (RF) and biceps femoris (BF) of both legs before and after each warm-up, while countermovement jump height variables, 20 m sprint, t-test and sit-and-reach were measured following the warm-ups. TMG was analyzed using a three-way [condition × time × leg] ANOVA, while performance variables were analyzed with a repeated measures ANOVA. Main effects of time were observed for BF-Tc (p = 0.035), RF-Td (p < 0.001), and BF-Td, (p = 0.008), and a main effect of condition was seen for RF-Tc (p = 0.038). Moreover, participants’ 20 m sprint improved following SSG (p = 0.021) compared to DYN and PLY. Sit-and-reach was greater following PLY (p = 0.021). No significant interactions were noted for the measured TMG variables. Warm-up-specific improvements were demonstrated in sprint speed and flexibility following SSG and PLY, respectively. The present study revealed changes in certain TMG measures following the warm-ups that suggest enhanced response of lower leg muscles regardless of specific activities used.

Effect of Cognitive Loading on Single-Leg Jump Landing Biomechanics of Elite Male Volleyball Players

2020 ◽  
pp. 1-6
Author(s):  
Sima Mohammad Amoli ◽  
Peyman Aghaie Ataabadi ◽  
Amir Letafatkar ◽  
Gary B. Wilkerson ◽  
Misagh B. Mansouri
Keyword(s):  
Vastus Lateralis ◽  
Cruciate Ligament ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Acl Injury ◽  
Medial Gastrocnemius ◽  
Cognitive Loading ◽  
Jump Landing ◽  
Landing Biomechanics ◽  
Muscle Activations

Anterior cruciate ligament (ACL) injury is prevalent during the single-leg jump landing in various sports. The effects of cognitive loading and how it affects risk of ACL injury are not well understood. The purpose of this study is to examine how landing kinetics change in the presence of cognitive loading during a volleyball block. Cognitive loading decreased activations in vastus lateralis and rectus femoris, and increased activation in biceps femoris and medial gastrocnemius muscles. During landing, the first and second peaks of ground reaction forces were 13% and 11% lower under cognitive loading, suggesting that cognitive loading alters landing biomechanics and muscle activations.

scholarly journals Comparação do ciclo alongamento-encurtamento em saltos verticais entre mulheres ativas adultas-jovens e idosas

2018 ◽  
Vol 6 (1) ◽  
pp. 15
Author(s):  
Hyago Bernardes da Rosa ◽  
Igor Martins Barbosa ◽  
Eduardo Porto Scisleski ◽  
Samuel Klippel Prusch ◽  
Luiz Fernando Cuozzo Lemos
Keyword(s):  
Vastus Lateralis ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Medial Gastrocnemius ◽  
Vastus Lateralis Muscle ◽  
Electromyographic Activity ◽  
Counter Movement Jump ◽  
Vertical Jumping ◽  
Significant Difference ◽  
Stretch Shortening Cycle

PURPOSE: To verify if there is an electromyographic economy and/or an increase in the variables of vertical jumps, both as a function of the use of the Stretch-Shortening Cycle and to compare the findings between young and old women, both active. METHODS: The sample consisted of a group of elderly (GI) and a group of young (GJ), both female. The power was measured through the contact platform and electromyographic activity of the muscles: biceps femoris (BF), rectus femoris (RF), medial gastrocnemius and vastus lateralis, through vertical jumping tests: Squat Jump (SJ) and Counter Movement Jump (CMJ). RESULTS: All the muscles evaluated did not present a statistically significant difference in the electromyographic activation and the comparisons of the mean percentage of use of the Stretch-Shortening Cycle (CAE), but it was observed that for the vastus lateralis and rectus femoris muscles there were significant differences in the comparisons between the two types of jumps of both groups, GI (236.89±115.66 for SJ and 230.45±109.10 for vastus lateralis muscle (VL) CMJ and 155.42±49.06 for SJ and 155 , 45±61.78 for the CMJ of the RF muscle) required greater neuromuscular activation to jump less than GJ (117.40±133.09 for SJ and 133.09±60.71 for VL muscle CMJ and 106.72±34.15 for the SJ and 108.87±38.85 for the CMJ of the RF muscle). CONCLUSIONS: The present study confirms that there was no statistically significant difference in the use of CAE in both groups (GI and GJ). However, when it comes to the skipped height and the power developed, there were statistically significant differences in the comparison of the groups.

scholarly journals The Measurement of Stiffness for Major Muscles with Shear Wave Elastography and Myoton: A Quantitative Analysis Study

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 524
Author(s):  
Youngjin Lee ◽  
Minkyoung Kim ◽  
Haneul Lee
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Voluntary Contraction ◽  
Muscle Stiffness ◽  
Medial Gastrocnemius ◽  
Strong Correlations ◽  
Significant Difference ◽  
The Relationship

The present study was performed to assess the relationship between hand-held myotonometer MyotonPRO and shear wave elastography (SWE) measurements of lower limb muscle stiffness during resting and active voluntary contraction. Forty healthy young adults, (20 males and 20 females) participated in the study. The stiffness of each subject’s rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and medial gastrocnemius (MG) was measured repeatedly by MyotonPRO and SWE. Moderate to strong correlations between the two methods’ measurements were found for both resting and active voluntary contraction. (r = 0.416–0.669, p < 0.05; r = 0.398–0.594, p < 0.05, respectively). Muscle stiffness at rest was significantly lower compared contraction in all four muscles measured by both methods (p < 0.05). Intra-rater reliabilities were generally lower when measurements were taken during contraction. Additionally, when compared by gender, muscle stiffness measured by MyotonPRO was significantly higher at rest in men compared to women, except for the TA. However, a significant difference was found in TA muscle stiffness by gender when measured with SWE. When muscles were contracted, all muscles showed significantly higher stiffness in men compared to women. There were moderate to good correlations in muscle stiffness between measurements of SWE and MyotonPRO at rest and during active voluntary contraction. Additionally, both instruments showed good intra-rater reliability.

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