scholarly journals Feasibility of evaluating effects of muscle fatigue on postural stability and muscular activation of the supporting leg in the soccer power kicking

2020 ◽  
Vol 13 (5) ◽  
pp. 144-154
Author(s):  
Júlia Ávila de Oliveira ◽  
Caroline Ribeiro de Souza ◽  
Carla Daniele Pacheco Rinaldin ◽  
Daniel Boari Coelho ◽  
Luis Augusto Teixeira
Keyword(s):  
Muscle Fatigue ◽  
Postural Stability ◽  
Dynamic Balance ◽  
Medial Gastrocnemius ◽  
Soccer Players ◽  
Critical Element ◽  
Ball Contact ◽  
Electromyographic Analysis ◽  
Support Leg ◽  
Muscular Activation

Muscle fatigue accumulated during a soccer game can be a critical element to athletic performance. The aim of this study was to analyze the feasibility of evaluating the effect of muscle fatigue of the support leg in soccer players postural stability and muscular activation of the stabilizing muscles of the ankle in the performance of a power kick. Six university soccer players were evaluated. Muscular fatigue was induced by means of repeated oscillations of the swing leg. Results indicated that fatigue did not significantly affect velocity of the kicking leg and postural stability while kicking. Electromyographic analysis revealed that fatigue induced decreased activation of the medial gastrocnemius and increased activation of the soleus muscles in the period following foot-ball contact. These results show the feasibility of analyzing the effect of fatigue on dynamic balance and muscular activation in the performance of a power kicking task.

scholarly journals Star Excursion Balance Test (SEBT): Comparison of Results with and without Neuromuscular Ankle Bandage

2018 ◽  
Vol 1 (4) ◽  
pp. 4-13 ◽  
Author(s):  
Alvaro Zamorano ◽  
Jair Burboa ◽  
Diego Cuzmar ◽  
Jose Hun ◽  
Guillermo Robles ◽  
...  
Keyword(s):  
Postural Stability ◽  
Dynamic Balance ◽  
Crossover Design ◽  
The Other ◽  
Soccer Players ◽  
Balance Test ◽  
National Team ◽  
Kinesio Taping ◽  
Professional Soccer ◽  
Star Excursion Balance Test

Study Design: Prospective study, simple crossover design. Background: Proprioception is a cornerstone for maintaining joint and postural stability. Dynamic stability is particularly emphasized within these components. This feature is important in the rehabilitation field. Therefore, the quest for elements to improve these values ​​can bring advantages in sports. Objectives: Evaluate if there are advantages in the performance of a Star Excursion Balance Test (SEBT) using Kinesio taping. Methods: We evaluated 10 professional soccer players from the Chilean women’s national team. They were randomly divided into 2 groups. One group had Kinesio taping and their SEBT performance was evaluated. The other group performed the measurements without the use of Kinesio Taping. Afterward, each group performed the evaluation they did not do during the first stage. We then compared the performance achieved with and without the use of Kinesio Taping Results: There were significant differences in the performance achieved by the players who had the SEBT bandage applied in comparison to the players that did no. This was confirmed by using the non-parametric Wilcox test for each of the SEBT positions. Conclusions: Kinesio taping has positive implications in the SEBT. We can extrapolate that its use can improve the dynamic balance and thus become an important pillar in sports rehabilitation.

scholarly journals Role of Occupational Footwear and Prolonged Walking on Lower Extremity Muscle Activation during Maximal Exertions and Postural Stability Tasks

Biomechanics ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 202-213
Author(s):  
Harish Chander ◽  
Sachini N. K. Kodithuwakku Arachchige ◽  
Alana J. Turner ◽  
Reuben F. Burch V ◽  
Adam C. Knight ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Muscle Activity ◽  
Repeated Measures ◽  
Postural Stability ◽  
Muscle Activation ◽  
Medial Gastrocnemius ◽  
Lower Extremity Muscle ◽  
Prolonged Duration ◽  
The Mean ◽  
The Impact

Background: Occupational footwear and a prolonged duration of walking have been previously reported to play a role in maintaining postural stability. The purpose of this paper was to analyze the impact of three types of occupational footwear: the steel-toed work boot (ST), the tactical work boot (TB), and the low-top work shoe (LT) on previously unreported lower extremity muscle activity during postural stability tasks. Methods: Electromyography (EMG) muscle activity was measured from four lower extremity muscles (vastus medialis (VM), medial hamstrings (MH), tibialis anterior (TA), and medial gastrocnemius (MG) during maximal voluntary isometric contractions (MVIC) and during a sensory organization test (SOT) every 30 min over a 4 h simulated workload while wearing ST, TB, and LT footwear. The mean MVIC and the mean and percentage MVIC during each SOT condition from each muscle was analyzed individually using a repeated measures ANOVA at an alpha level of 0.05. Results: Significant differences (p < 0.05) were found for maximal exertions, but this was limited to only the time main effect. No significant differences existed for EMG measures during the SOT. Conclusion: The findings suggest that occupational footwear type does not influence lower extremity muscle activity during both MVIC and SOT. Significantly lower muscle activity during maximal exertions over the course of the 4 h workload was evident, which can be attributed to localized muscular fatigue, but this was not sufficient to impact muscle activity during postural stability tasks.

scholarly journals Influence of a training session on postural stability and foot loading patterns in soccer players

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Vanessa K.N. Petry ◽  
Jürgen R.J. Paletta ◽  
Bilal F. El-Zayat ◽  
Turgay Efe ◽  
Nathalie S.D. Michel ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Postural Stability ◽  
Training Session ◽  
Young Age ◽  
Soccer Players ◽  
Plantar Pressure Distribution ◽  
Loading Patterns ◽  
Soccer Training ◽  
Foot Loading

Sport specific movements coming along with characteristic plantar pressure distribution and a fatigue of muscles result in an increasing postural sway and therefore lead to a decrease in balance control. Although single soccer specific movements were expatiated with respect to these parameters, no information is available for a complete training session. The objective of the present observational study was to analyze the direct influence of soccer training on postural stability and gait patterns and whether or not these outcomes were altered by age. One hundred and eighteen experienced soccer players participated in the study and were divided into two groups. Group 1 contained 64 soccer players (age 13.31±0.66 years) and Group 2 contains 54 ones (age 16.74±0.73 years). Postural stability, static plantar pressure distribution and dynamic foot loading patterns were measured. Our results showed that the soccer training session, as well as the age, has relevant influence on postural stability, while the age only (excluding the training) has an influence on static plantar pressure distribution. The parameters of dynamic assessment seem therefore to be affected by age, training and a combination of both. Training and young age correlate with a decreased postural stability; they lead to a significant increase of peak pressure in the previously most loaded areas, and, after reaching a certain age and magnitude of absolute values, to a change in terminal stance and preswing phase of the roll-over. Moreover, younger players show an inhomogenous static plantar pressure distribution which might be the result of the decreased postural control in the young age.

Dynamic and Static Assessment of Single-Leg Postural Control in Female Soccer Players

2020 ◽  
Vol 29 (2) ◽  
pp. 174-178
Author(s):  
Kelly M. Meiners ◽  
Janice K. Loudon
Keyword(s):  
Lower Extremity ◽  
Postural Stability ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Force Plate ◽  
Soccer Players ◽  
Balance Test ◽  
Left Lower Extremity ◽  
Static Assessment ◽  
Dynamic Postural Stability

Purpose/Background: Various methods are available for assessment of static and dynamic postural stability. The primary purpose of this study was to investigate the relationship between dynamic postural stability as measured by the Star Excursion Balance Test (SEBT) and static postural sway assessment as measured by the TechnoBody™ Pro-Kin in female soccer players. A secondary purpose was to determine side-to-side symmetry in this cohort. Methods: A total of 18 female soccer players completed testing on the SEBT and Technobody™ Pro-Kin balance device. Outcome measures were anterior, posterior medial, and posterior lateral reaches from the SEBT and center of pressure in the x- and y-axes as well as SD of movement in the forward/backward and medial/lateral directions from the force plate on left and right legs. Bivariate correlations were determined between the 8 measures. In addition, paired Wilcoxon signed-rank tests were performed to determine similarity between limb scores. Results: All measures on both the SEBT and postural sway assessment were significantly correlated when comparing dominant with nondominant lower-extremities with the exception of SD of movement in both x- and y-axes. When correlating results of the SEBT with postural sway assessment, a significant correlation was found between the SEBT right lower-extremity posterior lateral reach (r = .567, P < .05) and summed SEBT (r = .486, P < .05) and the center of pressure in the y-axis. A significant correlation was also found on the left lower-extremity, with SD of forward/backward movement and SEBT posterior medial reach (r = −.511, P < .05). Conclusions: Dynamic postural tests and static postural tests provide different information to the overall assessment of balance in female soccer players. Relationship between variables differed based on the subject’s lower-extremity dominance.

scholarly journals Effect of Incorporating Short-Foot Exercises in the Balance Rehabilitation of Flat Foot: A Randomized Controlled Trial

Healthcare ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1358
Author(s):  
Dongchul Moon ◽  
Juhyeon Jung
Keyword(s):  
Randomized Controlled Trial ◽  
Postural Stability ◽  
Balance Control ◽  
Dynamic Balance ◽  
Controlled Trial ◽  
Combined Effects ◽  
Sensorimotor Training ◽  
Flat Foot ◽  
Randomized Controlled ◽  
Balance Rehabilitation

Effective balance rehabilitation is essential to address flat foot (pes planus) which is closely associated with reduced postural stability. Although sensorimotor training (SMT) and short-foot exercise (SFE) have been effective for improving postural stability, the combined effects of SMT with SFE have not been evaluated in previous studies. The aim of this study was to compare the lone versus combined effects of SMT with SFE on postural stability among participants with flat foot. This was a single-blinded, randomized controlled trial. A total of 32 flat-footed participants were included in the study (14 males and 18 females) and assigned to the SMT combined with SFE group and SMT alone group. All participants underwent 18 sessions of the SMT program three times a week for six weeks. Static balance, dynamic balance, and the Hmax/Mmax ratio were compared before and after the interventions. Static and dynamic balance significantly increased in the SMT combined with SFE group compared with the SMT alone group. However, the Hmax/Mmax ratio was not significantly different between the two groups. Therefore, this study confirms that the combination of SMT and SFE is superior to SMT alone to improve postural balance control in flat-footed patients in clinical settings.

scholarly journals Differences in dynamic and postural stability based on degree of disability in patients with nonspecific chronic lower back pain: an observational study

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Mónica Grande-Alonso ◽  
Raquel Pérez-Muñoz ◽  
José María Aceña-García ◽  
Francisco Fernando Recio-Mateo ◽  
Diego Pro-Marín ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Observational Study ◽  
Chronic Low Back Pain ◽  
Postural Stability ◽  
Dynamic Balance ◽  
Forward Direction ◽  
Static Stability ◽  
Chronic Lower Back Pain ◽  
Low Back

Objetive: The main objective of this study was to analyze whether there were differences in dynamic balance and postural stability in relation to the level of disability in patients with chronic low back pain. Methodss: This is an observational study in which 60 patients with nonspecific chronic low back pain were included. All patients received a sociodemographic questionnaire, the visual analogue scale (VAS) and a series of self-reported psychological scales. To complete the evaluation, physical tests were performed in which dynamic balance and postural stability were measured. Results: Student’s t-test revealed that there were significant differences between the groups in dynamic balance with the right leg and the left leg. In contrast, there were no significant differences between the groups for the reach functional test in forward direction, left direction and right direction. Conclusion: In conclusion, our study demonstrates that patients with chronic low back pain with high levels of disability present significantly poorer dynamic balance compared with those with low levels of disability. In contrast, no significant differences were found between the groups in terms of static stability.

scholarly journals Discriminative validity of the lower and upper quarter Y balance test performance: a comparison between healthy trained and untrained youth

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Gerrit Schwiertz ◽  
Rainer Beurskens ◽  
Thomas Muehlbauer
Keyword(s):  
Test Performance ◽  
Dynamic Balance ◽  
Characteristic Curve ◽  
Area Under The Curve ◽  
Receiver Operator Characteristic Curve ◽  
Soccer Players ◽  
Balance Test ◽  
Discriminative Validity ◽  
Youth Athletes ◽  
Male Subjects

Abstract Background The Lower (YBT-LQ) and Upper (YBT-UQ) Quarter Y Balance Test have been widely used for the assessment of dynamic balance and shoulder mobility/stability, respectively. However, investigations on the validity of the two tests in youth are lacking. Therefore, we performed two studies to determine discriminative validity of the YBT-LQ (study 1) and the YBT-UQ (study 2) in healthy youth. Methods Sixty-nine male soccer players (age: 14.4 ± 1.9 yrs) and 69 age-matched untrained male subjects (14.3 ± 1.6 yrs) participated in study 1 and 37 young swimmers (age: 12.3 ± 2.1 yrs) as well as 37 age−/sex-matched individuals (age: 12.5 ± 2.0 yrs) took part in study 2. Absolute (cm) and relative (% leg/arm length) maximal reach distances per reach direction and the composite score of the YBT-LQ/UQ were used as outcome measures. One-way analysis of variance and the receiver operator characteristic curve analysis (i.e., calculating the area under the curve [AUC]) were conducted to assess discriminative validity. Results Concerning the relative values, youth athletes showed significantly better YBT-LQ (study 1: p < 0.001, d = 0.86–1.21) and YBT-UQ (study 2: p < 0.001, d = 0.88–1.48) test performances compared to age- and sex-matched untrained subjects. Further, AUC-values indicated a chance of ≥74% (YBT-LQ) and ≥ 71% (YBT-UQ) to discriminate between youth athletes and controls. These findings were confirmed when using the absolute data for analysis. Conclusions According to our results, the YBT-LQ and the YBT-UQ seem to be useful test instruments to discriminate trained and untrained healthy youth performance for dynamic balance and shoulder mobility/stability, respectively.

Sign in / Sign up

Export Citation Format

Share Document