Soccer Footedness and Between-Limbs Muscle Strength: Systematic Review and Meta-Analysis

DeLang, Matthew D.; Rouissi, Mehdi; Bragazzi, Nicola Luigi; Chamari, Karim; Salamh, Paul A.

doi:10.1123/ijspp.2018-0336

Cited by 22 publications

(23 citation statements)

References 63 publications

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“…However, it is assumed that they were symmetrical (>90% LSI) for the quadriceps strength. 65 Although musculoskeletal modelling allows for the prediction of in vivo muscle forces without invasive methods, it is not without limitations. Since measuring muscle forces in vivo during jumping is not feasible, we do not have a direct test for the accuracy of the computed muscle forces.…”

Section: Methodological Considerationsmentioning

confidence: 99%

Single leg hop for distance symmetry masks lower limb biomechanics: time to discuss hop distance as decision criterion for return to sport after ACL reconstruction?

et al. 2021

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BackgroundWe evaluated the lower limb status of athletes after anterior cruciate ligament reconstruction (ACLR) during the propulsion and landing phases of a single leg hop for distance (SLHD) task after they had been cleared to return to sport. We wanted to evaluate the biomechanical components of the involved (operated) and uninvolved legs of athletes with ACLR and compare these legs with those of uninjured athletes (controls).MethodsWe captured standard video-based three-dimensional motion and electromyography (EMG) in 26 athletes after ACLR and 23 healthy controls during SLHD and calculated lower limb and trunk kinematics. We calculated lower limb joint moments and work using inverse dynamics and computed lower limb muscle forces using an EMG-constrained musculoskeletal modelling approach. Between-limb (within ACLR athletes) and between-group differences (between ACLR athletes and controls) were evaluated using paired and independent sample t-tests, respectively.ResultsSignificant differences in kinematics (effect sizes ranging from 0.42 to 1.56), moments (0.39 to 1.08), and joint work contribution (0.55 to 1.04) were seen between the involved and uninvolved legs, as well as between groups. Athletes after ACLR achieved a 97%±4% limb symmetry index in hop distance but the symmetry in work done by the knee during propulsion was only 69%. During landing, the involved knee absorbed less work than the uninvolved, while the uninvolved knee absorbed more work than the control group. Athletes after ACLR compensated for lower knee work with greater hip work contribution and by landing with more hip flexion, anterior pelvis tilt, and trunk flexion.ConclusionSymmetry in performance on a SLHD test does not ensure symmetry in lower limb biomechanics. The distance hopped is a poor measure of knee function, and largely reflects hip and ankle function. Male athletes after ACLR selectively unload the involved limb but outperform controls on the uninvolved knee.

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Section: Methodological Considerationsmentioning

confidence: 99%

Single leg hop for distance symmetry masks lower limb biomechanics: time to discuss hop distance as decision criterion for return to sport after ACL reconstruction?

et al. 2021

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“…Each method provides different parameters of strength and has specific inherent weaknesses [ 5 ], such that strength assessments may not be equivalent between methods [ 4 ]. Although isokinetic strength measures have limited translation to sport-specific tasks, since these are rarely completed at an isokinetic pace [ 6 ], isokinetic assessments have several important advantages. These conducting assessments against a maximal resistance throughout the complete range of motion of a joint at different movement velocities [ 7 ], and the possibility of measuring torque [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Dietary Nitrate Supplementation on Isokinetic Torque in Adults: A Systematic Review and Meta-Analysis

et al. 2020

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Dietary nitrate (NO3−) supplementation, which can enhance performance in exercise settings involving repeated high-intensity efforts, has been linked to improved skeletal muscle contractile function. Although muscular strength is an important component of explosive movements and sport-specific skills, few studies have quantified indices of muscular strength following NO3− supplementation, particularly isokinetic assessments at different angular velocities. We performed a systematic review and meta-analysis to determine whether dietary NO3− supplementation improves peak torque, as assessed by the gold standard method of isokinetic dynamometry, and if this effect was linked to the angular velocity imposed during the assessment. Dialnet, Directory of Open Access Journals, MEDLINE, PubMed, SciELO, Scopus, and SPORTDiscus were searched for articles using the following search strategy: (nitrate OR beet*) AND (supplement* OR nutr* OR diet*) AND (isokinetic OR strength OR “resistance exercise” OR “resistance training” OR “muscular power”). The meta-analysis of data from 5 studies with 60 participants revealed an overall effect size of −0.01 for the effect of nitrate supplementation on isokinetic peak torque, whereas trivial effect sizes ranging from −0.11 to 0.16 were observed for independent velocity-specific (90°/s, 180°/s, 270°/s, and 360°/s) isokinetic peak torque. Four of the five studies indicated that dietary NO3− supplementation is not likely to influence voluntary knee extensor isokinetic torque across a variety of angular velocities. These results suggest that NO3− supplementation does not influence isokinetic peak torque, but further work is required to elucidate the potential of NO3− supplementation to influence other indices of muscular strength, given the dearth of experimental evidence on this topic.

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“…Perhaps the dominant limb is susceptible to injury not only due its higher kicking velocities and greater kicking frequency, but also for what the limb lacks relative to the non-dominant limb. Although isokinetic strength characteristics [ 11 ], lower extremity muscle crosssectional area [ 102 ], and power outputs [ 103 ] between limbs in previous studies have been reported to be relatively symmetrical, evidence of between-limb neuromuscular differences may be more telling. Coordinated neuromuscular tasks requiring multi-joint and multiplanar actions may help to elucidate between-limb differences.…”

Section: Discussionmentioning

confidence: 99%

“…footedness in soccer players) is an intrinsic trait that plays a significant role in soccer competition. It is often defined as the preferred kicking limb [ 11 ], and strongly influences soccer activity representing 82–84% of touches on average in the world’s most elite international competition, the World Cup [ 12 ]. Hägglund et al [ 7 ] observed increased rate of muscle strain injuries in the kicking leg, while Serner et al [ 13 ] reported greater incidence of dominant limb adductor injuries and kicking as a frequent mechanism of those injuries.…”

Section: Introductionmentioning

confidence: 99%

The dominant leg is more likely to get injured in soccer players: systematic review and meta-analysis.

DeLang¹,

Salamh²,

Farooq³

et al. 2021

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In soccer (football), dominant limb kicking produces higher ball velocity and is used with greater frequency than the non-dominant limb. It is unclear whether limb dominance has an effect on injury incidence. The purpose of this systematic review with meta-analysis is to examine the relationship between limb dominance and soccer injuries. Studies were identified from four online databases according to PRISMA guidelines to identify studies of soccer players that reported lower extremity injuries by limb dominance. Relevant studies were assessed for inclusion and retained. Data from retained studies underwent meta-analyses to determine relative risk of dominant versus non-dominant limb injuries using random-effects models. Seventy-four studies were included, with 36 of them eligible for meta-analysis. For prospective lower extremity injury studies, soccer players demonstrated a 1.6 times greater risk of injury to the dominant limb (95% CI [1.3–1.8]). Grouped by injury location, hamstring (RR 1.3 [95% CI 1.1–1.4]) and hip/groin (RR 1.9 [95% CI 1.3–2.7]) injuries were more likely to occur to the dominant limb. Greater risk of injury was present in the dominant limb across playing levels (amateurs RR 2.6 [95% CI 2.1–3.2]; youths RR 1.5 [95% CI 1.26–1.67]; professionals RR 1.3 [95% CI 1.14–1.46]). Both males (RR 1.5 [95% CI 1.33–1.68)] and females (RR 1.5 [95% CI 1.14–1.89]) were more likely to sustain injuries to the dominant limb. Future studies investigating soccer injury should adjust for this confounding factor by using consistent methods for assigning limb dominance and tracking use of the dominant versus non-dominant limb.

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Soccer Footedness and Between-Limbs Muscle Strength: Systematic Review and Meta-Analysis

Cited by 22 publications

References 63 publications

Single leg hop for distance symmetry masks lower limb biomechanics: time to discuss hop distance as decision criterion for return to sport after ACL reconstruction?

Single leg hop for distance symmetry masks lower limb biomechanics: time to discuss hop distance as decision criterion for return to sport after ACL reconstruction?

The Effect of Dietary Nitrate Supplementation on Isokinetic Torque in Adults: A Systematic Review and Meta-Analysis

The dominant leg is more likely to get injured in soccer players: systematic review and meta-analysis.

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