Examining movement asymmetries during three single leg tasks using interlimb and single subject approaches

Martonick, Nickolai; McGowan, Craig P.; Baker, Russell T.; Larkins, Lindsay; Seegmiller, Jeff G.; Bailey, Joshua P.

doi:10.1016/j.ptsp.2023.07.001

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…Moreover, studies have suggested that interlimb differences in muscle activation may vary depending on the specific task or movement being performed. For example, Martonick et al [ 39 ], found that interlimb muscle activity differences were more task dependent, involving single-leg movements compared to bilateral movements. This suggests that the level of task complexity and unilateral loading may influence the manifestation of laterality effects in muscle activation [ 40 ].…”

Section: Discussionmentioning

confidence: 99%

Examining the association between speed and myoelectric activity: Time-based differences and muscle group balance

Porta,

Filetti,

Chiari

et al. 2024

PLoS ONE

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The purpose of this study is to investigate the relationship between speed and myoelectric activity, measured during an incremental 25m shuttle running test, exploring the time-based variations and assessing muscle group balance within the context of this association. Twelve male young soccer players (n = 12) aged 18±1.2 years, with an average body mass of 68.4±5.8kg and average body height of 1.72±0.08m, from a professional Italian youth team (Italian “Primavera”), volunteered as participants for this study. The speed of each player during testing was measured using GPS technology, sampling at 50Hz. Myoelectrical activities of the gluteus, hamstrings, and quadriceps muscles were recorded through wearable sEMG devices, sampled at 100Hz. To ensure alignment of the sampling frequencies, the sEMG data was resampled to 50Hz, matching the GPS data sampling rate. This allowed for direct comparison and analysis of the data obtained from both measurement systems. The collected data were then analyzed to determine the relationship between the investigated variables and any potential differences associated with different sides of the body. The results revealed a robust correlation (r2≈0.97) between the speed of the participants (m·s-1) and their myoelectrical activity (μV) during the test. Factorial ANOVA 2x11 showed no significant differences between the sides of the analyzed muscles (p>0.05). The interpolation lines generated by the association of speed and sEMG exhibit very similar angular coefficients (0.9 to 0.12) in all six measurements obtained from electromyography of the three investigated muscle groups on each side of the body. In conclusion, the concurrent validity between the two instruments in this study indicates that GPS and sEMG are valid and consistent in estimating external load and internal load during incremental shuttle running.

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Section: Discussionmentioning

confidence: 99%

Examining the association between speed and myoelectric activity: Time-based differences and muscle group balance

Porta,

Filetti,

Chiari

et al. 2024

PLoS ONE

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“…The singleleg countermovement jump may be the most accurate indicator of injury risk, as compensatory mechanisms are restricted when compared to jumping with both legs [4]. However, one task may not be enough to identify asymmetrical movement patterns [7,22].…”

Section: Introductionmentioning

confidence: 99%

Unilateral and bilateral jumping performance in female basketball players with and without a history of lower limb injuries

Zawadka,

Talacha,

Oleszczak

et al. 2023

areh

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Introduction: Lower limb injuries are major problems in team sports, especially among female players. The study aimed to investigate how lower limb injury history compared to no history of injuries affects unilateral and bilateral jumping performance in female basketball players. Additionally, knee and ankle mobility were investigated.Material and methods: Twenty-one female basketball players participated in this study: 12 players from the elite level and 9 from the university team. There were 21 limbs with an injury history of knee or ankle sprain. Two jumping tests were conducted: a two-leg countermovement jump (CMJ) without arm swing, and a series of single-leg jumps within 15 seconds. Parameters of jumps were detected and measured using the optical measuring system. Injury history was investigated using a survey.Results: Elite players had a greater CMJ height, specific and total energy, active knee extension and smaller ankle dorsiflexion than university players. No significant differences were found between knee and ankle injuries in terms of the parameters of CMJ and single-leg jumps or range of motion. There were significant correlations between the frequency of jumps (r = -0.66, p = 0.001), total energy (r = 0.55, p = 0.009), contact time (r = 0.49, p = 0.02), height (r = 0.46, p = 0.03) and the time elapsed since the injury.Conclusions: Coaches and physiotherapists should consider the connection between time elapsed since the injury and jumping performance when evaluating female basketball players' abilities and risk factors for re-injury.

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Interlimb kinetic asymmetries during the tuck jump assessment are more exposed following kinetic stabilization

Kember,

Myer,

Lloyd

2024

Physical Therapy in Sport

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Examining movement asymmetries during three single leg tasks using interlimb and single subject approaches

Cited by 4 publications

References 35 publications

Examining the association between speed and myoelectric activity: Time-based differences and muscle group balance

Examining the association between speed and myoelectric activity: Time-based differences and muscle group balance

Unilateral and bilateral jumping performance in female basketball players with and without a history of lower limb injuries

Interlimb kinetic asymmetries during the tuck jump assessment are more exposed following kinetic stabilization

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