Relationship between lower limb asymmetries, impulsion and balance in senior football players

2020 ◽  
Vol 30 (Supplement_2) ◽  
Author(s):  
J Domingues ◽  
M Castro
Keyword(s):  
Lower Limb ◽  
Lower Limbs ◽  
Soccer Players ◽  
Football Players ◽  
Maximum Torque ◽  
Balance Test ◽  
Risk Of Injury ◽  
Lower Limb Strength ◽  
Balance Deficits ◽  
The Relationship

Abstract Introduction Football is the most popular sport in the world and there are over 38 million players practicing it worldwide. In this sport, players usually have a prefered lower limb over other. This preference can lead to bilateral asymmetries and improve the risk of injury in the players. It is important to understand if asymmetries have an influence on athletes’ performance, on balance or impulsion. Objectives The main objective of this study is to evaluate the bilateral and unilateral asymmetries related to the lower limb muscle strength of individuals who practice senior football, and relate them to eventual impulse and balance deficits. Methodology 11 soccer players (age 21.91 ± 3.14 years; weight: 73.45 ± 7.59 Kg; height: 178.91 ± 8.02; BMI: 22.97 ± 2,12) were evaluated. The protocol defined in this study consisted of collecting data on maximum concentric torque at 60o/s, 180o/s and 300o/s in Biodex System 3. Both lower limbs were tested. Then the Y-balance test was performed on a force platform and the athletes’ flight time were recorded. We also calculated the bilateral deficit between the dominant lower limb and the non-dominant lower limb for the quadriceps and hamstrings and the hamstring/quadriceps (H/Q) ratio for each lower limb Results There were no statistically significant differences between the maximum torque produced by the dominant lower limb and the maximum force torque produced by the dominant lower limb (p < 0.05). The conventional I / Q ratio has values similar to those described in the literature. The relationship between bilateral asymmetry of lower limb strength, balance and impulsion was not statistically significant (p > 0.05) at any angular velocity. Conclusion There are no statistically significant differences between bilateral and unilateral asymmetries of lower limb strength, balance and impulsion.

scholarly journals Assessment of balance, gait, lower limb strength and functionality in sarcopenic and non-sarcopenic elderlies

2020 ◽  
Vol 18 ◽  
pp. 1-7
Author(s):  
Alice Martins Magalhães ◽  
Daniella Macedo Cerceau ◽  
Kênia Kiefer Parreiras de Menezes ◽  
Gabriela Vieira Oliveira ◽  
Bárbara Batista Gomes
Keyword(s):  
Muscle Mass ◽  
Lower Limb ◽  
Gait Speed ◽  
Functional Performance ◽  
Cross Sectional Study ◽  
Lower Limbs ◽  
Balance Test ◽  
Cross Sectional ◽  
Speed Test ◽  
Lower Limb Strength

Background: Sarcopenia is the involuntary loss of muscle mass predicted by aging and is associated with an increased likelihood ofunfavorable results, such as falls, mortality and functional disabilities. Objective: Evaluate balance, gait speed, lower limb strength andfunctionality in sarcopenic and non-sarcopenic elderly. Methods: Cross-sectional study, carried out with 68 subjects aged 60 years orover, residents of the community and possessing an independent gait. The assessment instruments were bioimpedance, balance test,four-meter gait speed test, chair support test and SPPB. Results: The prevalence of sarcopenia in the population of the present studywas 43.3%. In the group of non-sarcopenic subjects, a correlation was found between all the variables evaluated. In the group ofsarcopenic subjects, a correlation was found between lower limbs strength and gait speed. Conclusion: The skeletal muscle mass ofa sarcopenic elderly is related to their lower limb strength and gait speed, but it does not present a significant correlation with balanceand functional performance. Further studies are needed to clarify the behavior of balance, gait speed, lower limb strength and functionalperformance variables when compared to the decrease in muscle mass inherent in aging.

scholarly journals The impact of exercise of lower limbs on dynamic balance and valgus of the knees among young footballers

2019 ◽  
Author(s):  
Bartosz Wilczyński ◽  
Katarzyna Zorena ◽  
Piotr Wąż
Keyword(s):  
Lower Limb ◽  
Dynamic Balance ◽  
Intervention Group ◽  
Lower Limbs ◽  
Football Players ◽  
Valgus Knee ◽  
Balance Test ◽  
And Control ◽  
The Impact ◽  
Dynamic Valgus

Abstract Background Participation of children and youth in sporting activities, among others in training and football competitions, is an optimistic manifestation of activation in the current trend of computerization. Unfortunately, this is also often associated with musculoskeletal injuries. An example is the association of dynamic valgus and disturbed dynamic balance with lower limb injuries. The main purpose of the studies is to determine the impact of three strengthening exercises on the parameters of dynamic knee valgus and balance of lower limbs. The secondary objectives are to investigate the dominant influence and the length of lower limb on the valgus values and to determine risk of injury to young football players. Methods 134 young footballers training at the Arka Gdynia SI club were invited to first stage of the research in order to examine anthropometric features and kinematics of the lower limb. Single Leg Squat Test was used, which was recorded. The samples were analyzed video to determine exact knee angle of valgus. During the second stage, to which players with valgus knee were qualified (≥15˚), the Y-Balance Test was additionally used. Intervention group underwent an exercise program to strengthen gluteus medius, popliteal and tibialis posterior muscles for 6 weeks to repeat tests in the third stage. Results Statistical methods used at the assumed level of significance allow to conclude that there are no differences in results of dynamic valgus (≥15˚) and dynamic balance between the intervention group and control group during the 6 week period between stages. In addition, there were results confirming the lack of influence of length and dominant lower limb on valgus. Results of composite direction in the Y-Balance Test test determine the low risk of injury in both intervention and control groups. Conclusions Intervention did not affect the dynamic valgus and knee balance in young football players. Both the length and the dominant limb did not affect the results. The "low risk" occurrence of injuries among the examined participants with valgus knee due to the values of dynamic balance was determined.

The relationship between lower-limb strength and match-related muscle damage in elite level professional European soccer players

2015 ◽  
Vol 33 (20) ◽  
pp. 2100-2105 ◽  
Author(s):  
Adam Owen ◽  
Gordon Dunlop ◽  
Mehdi Rouissi ◽  
Moktar Chtara ◽  
Darren Paul ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Lower Limb ◽  
Soccer Players ◽  
Lower Limb Strength ◽  
Elite Level ◽  
The Relationship

scholarly journals COVID-19 era in long-term cardiac rehabilitation programs: how was muscle strenght and lean mass affected in cardiovascular patients?

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
M Borges ◽  
M Lemos Pires ◽  
R Pinto ◽  
G De Sa ◽  
I Ricardo ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Cardiac Rehabilitation ◽  
Lean Mass ◽  
Lower Limb ◽  
Lower Limbs ◽  
Phase Iii ◽  
Face To Face ◽  
Home Based ◽  
Lower Limb Strength

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Exercise prescription is one of the main components of phase III Cardiac Rehabilitation (CR) programs due to its documented prognostic benefits. It has been well established that, when added to aerobic training, resistance training (RT) leads to greater improvements in peripheral muscle strength and muscle mass in patients with cardiovascular disease (CVD). With COVID-19, most centre-based CR programs had to be suspended and CR patients had to readjust their RT program to a home-based model where weight training was more difficult to perform. How COVID-19 Era impacted lean mass and muscle strength in trained CVD patients who were attending long-term CR programs has yet to be discussed. Purpose To assess upper and lower limb muscle strength and lean mass in CVD patients who had their centre-based CR program suspended due to COVID-19 and compare it with previous assessments. Methods 87 CVD patients (mean age 62.9 ± 9.1, 82.8% male), before COVID-19, were attending a phase III centre-based CR program 3x/week and were evaluated annually. After 7 months of suspension, 57.5% (n = 50) patients returned to the face-to-face CR program. Despite all constraints caused by COVID-19, body composition and muscle strength of 35 participants (mean age 64.7 ± 7.9, 88.6% male) were assessed. We compared this assessment with previous years and established three assessment time points: M1) one year before COVID-19 (2018); M2) last assessment before COVID-19 (2019); M3) the assessment 7 months after CR program suspension (last trimester of 2020). Upper limbs strength was measured using a JAMAR dynamometer, 30 second chair stand test (number of repetitions – reps) was used to measure lower limbs strength and dual energy x-ray absorptiometry was used to measure upper and lower limbs lean mass. Repeated measures ANOVA were used. Results Intention to treat analysis showed that upper and lower limbs lean mass did not change from M1 to M2 but decreased significantly from M2 to M3 (arms lean mass in M2: 5.68 ± 1.00kg vs M3: 5.52 ± 1.06kg, p = 0.004; legs lean mass in M2: 17.40 ± 2.46kg vs M3: 16.77 ± 2.61kg, p = 0.040). Lower limb strength also decreased significantly from M2 to M3 (M2: 23.31 ± 5.76 reps vs M3: 21.11 ± 5.31 reps, p = 0.014) after remaining stable in the year prior to COVID-19. Upper limb strength improved significantly from M1 to M2 (M1: 39.00 ± 8.64kg vs M2: 40.53 ± 8.77kg, p = 0.034) but did not change significantly from M2 to M3 (M2 vs M3: 41.29 ± 9.13kg, p = 0.517). Conclusion After CR centre-based suspension due to COVID-19, we observed a decrease in upper and lower limbs lean mass and lower limb strength in previously trained CVD patients. These results should emphasize the need to promote all efforts to maintain physical activity and RT through alternative effective home-based CR programs when face-to-face models are not available or possible to be implemented.

scholarly journals The Relationship between Dynamic Balance and Jumping Tests among Adolescent Amateur Rugby Players. A Preliminary Study

2021 ◽  
Vol 18 (1) ◽  
pp. 312
Author(s):  
Bartosz Wilczyński ◽  
Jakub Hinca ◽  
Daniel Ślęzak ◽  
Katarzyna Zorena
Keyword(s):  
Injury Risk ◽  
Dynamic Balance ◽  
Study Data ◽  
Balance Test ◽  
Risk Of Injury ◽  
Counter Movement Jump ◽  
Increased Risk ◽  
Positive Correlations ◽  
The Relationship ◽  
Rugby Players

Rugby is a demanding contact sport. In light of research, poor balance, reduced jumping ability, muscle strength, and incorrect landing patterns might contribute to the increased risk of injury in athletes. Investigating the relationship between tests assessing these abilities might not only allow for the skillful programming of preventive training but also helps in assessing the risk of injury to athletes. Thus, the main purpose of this study was to investigate the relationship between dynamic balance, vertical and horizontal jumps, and jump-landings movement patterns. Thirty-one healthy amateur adolescent rugby players (age: 14.3 ± 1.6 years, height 171.4 ± 9.7 cm, body mass 80 ± 26 kg) participated in the study. Data were collected by the Y-balance Test (YBT), Counter Movement Jump (CMJ), Single Leg Hop for Distance (SLHD), and Landing Error Score System (LESS). Significant positive correlations were found between SLHD both legs (SLHDb) and YBT Composite both legs (COMb) (r = 0.51, p = 0.0037) and between SLHDb and CMJ (r = 0.72, p < 0.0001). A relationship was also observed between the CMJ and YBT COMb test (r = 0.51, p = 0.006). Moderate positive correlations were found between the dominant legs in SLHD and the posterolateral (r = 0.40, p = 0.027), posteromedial (r = 0.43, p = 0.014), and composite (r = 0.48, p = 0.006) directions of the YBT. These results indicate that variables that are dependent on each other can support in the assessment of injury-risk and in enhancing sports performance of young athletes.

scholarly journals Laterality of the legs in young female soccer players

2015 ◽  
Vol 16 (4) ◽  
Author(s):  
Katarzyna Z. Antosiak-Cyrak ◽  
Grzegorz Wiczyński ◽  
Elżbieta M. Rostkowska
Keyword(s):  
Young Female ◽  
Lower Limbs ◽  
Soccer Players ◽  
Static Balance ◽  
Balance Test ◽  
Body Balance ◽  
Hop Tests ◽  
Global Movements ◽  
The Right ◽  
Better Than

AbstractPurpose. The aim of the present study was assessment of laterality of the legs of young female soccer players and their non-training counterparts. Methods. The study sample comprised 9 female soccer players and 19 non-training girls. They underwent three measurement sessions, one every six months. The applied tests included kinesthetic differentiation, rate of local movements, static balance, single-leg hop, rate of global movements, strength and speed, and functional asymmetry of the legs tests. Results. The soccer players were better than the controls in their performance of the rate of local movements, rate of global movements, kinesthetic differentiation, single-leg 15m timed hop and static balance tests. Smaller differences between the results of the left and the right legs in soccer players, than in non-training girls, were noted in the rate of local movements, rate of global movements and kinesthetic differentiation tests. In the static balance test, the differences were greater in the group of soccer players. Conclusions. Lateralization of the lower limbs is a highly complex characteristic with a different variability in athletes than in nontraining individuals. The results of the present study also point to the specialization of soccer players’ left legs in body balance and single-leg hop tests.

scholarly journals Side-to-side asymmetry in lower limb strength and hamstring-quadriceps strength ratio among collegiate American football players

2019 ◽  
Vol 31 (11) ◽  
pp. 884-888
Author(s):  
Enver Tatlıcıoğlu ◽  
Ozan Atalağ ◽  
Berkiye Kırmızıgil ◽  
Cem Kurt ◽  
Mustafa Ferit Acar
Keyword(s):  
Lower Limb ◽  
Quadriceps Strength ◽  
American Football ◽  
Football Players ◽  
Strength Ratio ◽  
Lower Limb Strength ◽  
Side Asymmetry

scholarly journals Effects of Strength Training Combined with Specific Plyometric exercises on body composition, vertical jump height and lower limb strength development in elite male handball players: a case study

2014 ◽  
Vol 41 (1) ◽  
pp. 125-132 ◽  
Author(s):  
Alberto Carvalho ◽  
Paulo Mourão ◽  
Eduardo Abade
Keyword(s):  
Body Composition ◽  
Strength Training ◽  
Body Fat ◽  
Lower Limb ◽  
Vertical Jump ◽  
Fat Content ◽  
Lower Limbs ◽  
Strength Development ◽  
Lower Limb Strength ◽  
Body Fat Content

AbstractThe purpose of the present study was to identify the effects of a strength training program combined with specific plyometric exercises on body composition, vertical jump (VJ) height and strength development of lower limbs in elite male handball players. A 12-week program with combined strength and specific plyometric exercises was carried out for 7 weeks. Twelve elite male handball players (age: 21.6 ± 1.73) competing in the Portuguese Major League participated in the study. Besides the anthropometric measurements, several standardized jump tests were applied to assess VJ performance together with the strength development of the lower limbs in an isokinetic setting. No significant changes were found in body circumferences and diameters. Body fat content and fat mass decreased by 16.4 and 15.7% respectively, while lean body mass increased by 2.1%. Despite small significance, there was in fact an increase in squat jump (SJ), counter movement jump (CMJ) and 40 consecutive jumps after the training period (6.1, 3.8 and 6.8%, respectively). After the applied protocol, peak torque increased in lower limb extension and flexion in the majority of the movements assessed at 90°s-1. Consequently, it is possible to conclude that combining general strength-training with plyometric exercises can not only increase lower limb strength and improve VJ performance but also reduce body fat content.

scholarly journals TL 18165 - Relationship between lower limb dysmetria and plantar fasciitis

2019 ◽  
Vol 13 (Supl 1) ◽  
pp. 96S
Author(s):  
Henrique Mansur ◽  
Guilherme Gonçalves Feijó Carvalho ◽  
Isnar Moreira de Castro Júnior
Keyword(s):  
Lower Limb ◽  
Plantar Fasciitis ◽  
Plantar Fascia ◽  
Cross Sectional Study ◽  
Lower Limbs ◽  
Sectional Study ◽  
Cross Sectional ◽  
Calcaneal Spur ◽  
The Mean ◽  
The Relationship

Introduction: Plantar fasciitis is an inflammatory process of multifactorial etiology that affects the origin of the plantar fascia and surrounding structures. A difference in length between lower limbs is relatively common within the population and can sometimes cause changes in biomechanics and symptoms. The objective of this study is to evaluate the relationship between lower limb dysmetria and plantar fasciitis. Methods: A cross-sectional study was performed to measure the length of the lower limbs by scanometry in patients diagnosed with plantar fasciitis. Other risk factors, such as body mass index, foot shape and the presence of plantar calcaneal spur, were also assessed in foot radiographs. Results: Of the 54 patients included in the study, 44.4% were men, and the mean age was 50.38 (23-73 years); 81.5% had pain in one foot, and 53.7% had feet that were considered plantigrade. We observed dysmetria in 88.9% of the sample, with a mean of 0.749 cm (SD ±0.63). In addition, 46.3% feet with pain showed calcaneal spurs on the radiographs. Conclusion: Approximately 90% of patients showed lower-limb dysmetria and, in most cases, the side with the shorter limb was affected by plantar fasciitis

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