Associations between differing magnitudes of inter-limb asymmetry and linear and change of direction speed performance in male youth soccer players

Işın, Ali; Akdağ, Eren; Özdoğan, Emel Çetin; Bishop, Chris

doi:10.2478/bhk-2022-0009

Cited by 6 publications

(13 citation statements)

References 30 publications

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“…We also report distinct bilateral asymmetries compared to observations in similar soccer population. 6,9 For example, most of young sub-elite male soccer players (22 out of 42) had a bilateral asymmetry above 10%. 6 Taking these results into account, it‘s possible that soccer players can be more predisposed to various injuries during high-intensity activities (e.g., cutting and landings), because of additional stress placed on the weaker leg due to bilateral asymmetry.…”

Section: Discussionmentioning

confidence: 99%

“…6,9 For example, most of young sub-elite male soccer players (22 out of 42) had a bilateral asymmetry above 10%. 6 Taking these results into account, it‘s possible that soccer players can be more predisposed to various injuries during high-intensity activities (e.g., cutting and landings), because of additional stress placed on the weaker leg due to bilateral asymmetry. 5 Indeed, in young elite team-sports athletes those more predisposed to injury had single leg countermovement bilateral asymmetry considerably above 10% cut-off criterion (mean CMJ ASY = 16.98%) compared with non-injured counterparts.…”

Section: Discussionmentioning

confidence: 99%

“…5 Moreover, a higher prevalence of bilateral asymmetry (> 10% in unilateral jumping) has been observed in soccer players. 6 Therefore, the study of bilateral asymmetries in soccer populations can be particularly useful for practitioners who wish to reduce existing discrepancies between limbs.…”

Section: Introductionmentioning

confidence: 99%

“…However, contrasting reports exist whereby greater asymmetries positively influenced performance of 30-m sprint test among youth male soccer players. 6 Furthermore, the amount of ankle dorsiflexion range of motion (DF-ROM) influences movement patterns of lower limbs in different planes of motion. 16 In this regard, the lack of range in the sagittal plane (i.e., reduced ankle dorsiflexion ROM), results in compensation of movement in the frontal plane (i.e., dynamic knee valgus), 16 which could lead to kinetic alterations during cutting task, particularly involving more aggressive cutting angle (≥ 90°).…”

Section: Introductionmentioning

confidence: 99%

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Assessing asymmetries and predicting performance in semiprofessional soccer players

Arede

Fernandes

Singh

et al. 2023

International Journal of Sports Science & Coaching

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This study aimed to (a) detail the interlimb asymmetries during multi-directional jumping, change of direction and for ankle dorsiflexion range of motion and (b) determine how asymmetries and performance in multi-directional jumping and ankle dorsiflexion predict performance during change of direction tests. Twenty-two male semi-professional players completed a testing session which consisted of unilateral ankle dorsiflexion range of motion, vertical and horizontal unilateral and lateral countermovement jumps and left and right leg 90° (COD90L&R) and 180° (COD180L&R) change of direction tests. No significant differences between limbs were observed for any of the variables ( P > 0.05), though vertical countermovement jump (11.1% ± 9.1%) and dorsiflexion range of motion (10.5% ± 10.3%) imbalances were greater than those during lateral (2.7% ± 2.2%) and horizontal (2.2% ± 1.9%) countermovement jumps, and 90° (3.6% ± 3.1%) and 180° change of direction (2.9% ± 3.6%). Subjects presented 3.4 ± 1.4 real asymmetries (i.e., one greater than the coefficient of variation) across the tests, with all subjects having at least one real asymmetry. Stepwise linear regression models explained a reasonable amount of variance in change of direction180R (70%), COD90L (57%), COD90R (39%), COD180L (23%) using the countermovement jump and dorsiflexion range of motion variables ( P < 0.05). The current findings indicate that semi-professional soccer players have real bilateral asymmetries (particularly in countermovement jump and dorsiflexion range of motion), which practitioners should be cognizant of. Given the prediction value, change of direction performance can be predicted using performance and asymmetries during multi-directional jumping and ankle dorsiflexion.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing asymmetries and predicting performance in semiprofessional soccer players

Arede

Fernandes

Singh

et al. 2023

International Journal of Sports Science & Coaching

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“…Normative data from Hoch and McKeon 38 report interlimb asymmetries of 1-2cm in 35 healthy participants and Rabin et al 39 found asymmetries of 10° in 23% of male military recruits. Arede et al 40 and Işın et al 41 report frequent asymmetries of over 10% in male soccer players but argue that differences occur due to the functional demands of the sport. However, in comparison, other authors have found no asymmetry in DFROM, 42,43 but this could be due to methodological differences between the studies and how asymmetry has been calculated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sex and Lateral Ankle Sprain History on Dorsiflexion Range Of Motion Asymmetry During the Weight Bearing Lunge Test

Cady,

De Ste Croix,

Deighan

2024

International Journal of Sports Physical Therapy

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Background Reduced dorsiflexion range of motion (DFROM) which is commonly seen following lateral ankle sprain (LAS) has the potential to influence lower extremity biomechanics which have been linked to increased injury risk in the female athlete. Current research on the effect of sex and LAS history on DFROM is limited. Hypothesis/Purpose This study had three aims 1) to determine the effect of sex, leg dominance and LAS history on DFROM, 2) to determine the effect of sex and LAS history on magnitude of DFROM symmetry and 3) to examine the association of sex on direction (whether dominant or non-dominant limb had the higher DFROM) of symmetry. Study Design Cross-Sectional Study Methods DFROM was measured bilaterally in 105 recreational athletes all participating in multidirectional sports using the tape measurement method during the weight bearing lunge test (WBLT). A mean of three measurements was used for analysis. A 3-way mixed ANOVA was carried out to determine the interaction between sex, LAS history and leg dominance on DFROM and a 2-way ANOVA for the effect of sex and LAS history on asymmetry. A chi-square test was used to determine the association of sex and direction of asymmetry. Results The results indicate no significant effect of sex, LAS history, and leg dominance on DFROM (p=0.65). Main effects were significant for sex and LAS on DFROM. The mean asymmetry for all participants was reported as 12.25±14.76cm. No significant effect of sex and LAS history on magnitude of asymmetry was reported. There was a significant association of sex and direction of asymmetry (χ2(1) = 11.26, p = 0.00). Sixty-five-point two percent of males were shown to have higher DFROM of their non-dominant limb compared to 75% of females who were higher in their dominant limb. Conclusion Findings from this study suggest that DFROM is affected by sex and LAS history. While females have increased DFROM compared to males, those with LAS history are more likely to have a decreased DFROM on the involved side. The results also indicate that interlimb asymmetries in DFROM are present in athletes, therefore practitioners should exercise caution when using bilateral comparisons in injury and return to play assessments. Level of Evidence 2b.

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Impact of Lower Limb Muscle Strength and Power Asymmetry on Multidirectional Speed in Female Soccer Players

Skalski,

Prończuk,

Łośinska

et al. 2024

Preprint

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The aim of the present study was to examine and determine the impact of asymmetry of muscle strength and power between the right and left lower limbs on running speed with changes of direction (multidirectional speed) in female football players. 20 right-footed elite female soccer players from the Ekstraliga participated in the study. Statistical analysis indicates that in running speed with change of direction in the 505 Right and 505 Left tests (group criterion: MVSLJ), players in the group with higher asymmetry (G2) achieved higher change-of-direction running speeds than those in the group with lower asymmetry (G1). A one-way ANOVA of running speeds between groups G1 and G2 (group criterion: PPLP) indicate statistically significant differences in running speed between groups in the Zigzag and 505 Right tests. Players in the group with higher asymmetry (G2) ran faster in the change-of-direction sections of the 505 Right. Based on the results collected during the study on the impact of differences in strength and power between the lower limbs on change-of-direction sprint speed in professional female soccer players, it was observed that players with smaller asymmetry achieved lower change-of-direction running speeds than those with greater asymmetry. Moreover, all observed significant differences in running speed tests between the analyzed groups were significantly correlated with the percentage differences in lower limb power within these groups.

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Associations between differing magnitudes of inter-limb asymmetry and linear and change of direction speed performance in male youth soccer players

Cited by 6 publications

References 30 publications

Assessing asymmetries and predicting performance in semiprofessional soccer players

Assessing asymmetries and predicting performance in semiprofessional soccer players

Effect of Sex and Lateral Ankle Sprain History on Dorsiflexion Range Of Motion Asymmetry During the Weight Bearing Lunge Test

Impact of Lower Limb Muscle Strength and Power Asymmetry on Multidirectional Speed in Female Soccer Players

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