Limb-dominance and gender differences in the ground reaction force during single-leg lateral jump-landings

Aizawa, Junya; Hirohata, Kenji; Ohji, Shunsuke; Ohmi, Takehiro; Yagishita, Kazuyoshi

doi:10.1589/jpts.30.387

Cited by 14 publications

(17 citation statements)

References 46 publications

(73 reference statements)

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“…It has already been reported that the landing ability of a single leg landing differs between dominant and non-dominant legs. 27 , 40 In this study, we only compared successful and unsuccessful trials, but stratified analysis based on dominance is necessary in the future. Finally, it has been reported that there are sex-related differences in vertical GRF maximum values during jump-landing.…”

Section: Discussionmentioning

confidence: 99%

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Characteristics of ground reaction force and frontal body movement during failed trials of single-leg lateral drop jump-landing task

Hirohata

Aizawa

Ohmi

et al. 2021

Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilit

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Background /objectives: For biomechanical studies using jump-landing tasks, many researchers set the criteria for judging success or failure of the trial. Failed trials are usually removed from the analysis. However, the kinetics and kinematics during tasks included in failed trials might be important for understanding the mechanisms and risk factors of non-contact sports injuries. However, few studies have attempted to analyze failed trials. Therefore, the main objective of this study was to investigate the characteristics associated with ground reaction force (GRF) and two-dimensional frontal body movements during a failed trial of single-leg lateral drop jump-landing. Methods Ten healthy women and 16 healthy men participated in this study. Spearman's rank correlation coefficients were calculated using the total number of failed trials and GRF data of successful trials. The association between frontal body movement and kinetics data was identified using correlation analyses. Wilcoxon signed-rank tests were performed to compare the GRF data of successful trials and failed trials of the same subject. Additionally, a two-way repeated measure analysis of variance was used to determine significant interactions of each trial and time after initial contact in the frontal body movement. Results A total of 137 trials including successful and failed trials were recorded. There were 59 failed jump trials. There was a significant negative correlation between the number of failed jump trials and the elapsed time from initial contact to peak vertical GRF (peak vGRF time) during successful trials (r = −0.427). The majority of failed trials were judged to be due to rearfoot movement patterns (rearfoot medial slip or rearfoot lateral slip). During rearfoot medial slip, we observed shorter peak vGRF time, larger trunk medial motions, and larger hip adduction movements after landing than that during successful trials. During rearfoot lateral slip, we observed larger trunk lateral motions and hip abduction movements after landing than that during successful trials. Conclusions Athletes who frequently failed during single-leg lateral drop jump-landing had poor skills absorbing jump-landing impact, which is related to various sports injuries. It is possible to identify the risk factors for sports injuries by analyzing failure patterns.

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Section: Discussionmentioning

confidence: 99%

“…The reliability of data collection using the following method has been reported in the past, and good reliability with ICC (1,1) between 0.73 and 0.74 have been confirmed. 26 , 27 …”

Section: Methodsmentioning

confidence: 99%

Characteristics of ground reaction force and frontal body movement during failed trials of single-leg lateral drop jump-landing task

Hirohata

Aizawa

Ohmi

et al. 2021

Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilit

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“…Oral questioning was used to confirm whether the knee that had undergone reconstruction was on the dominant side. The dominant limb was defined as the leg used to kick a ball to maximal distance [ 33 ]. The level of sports activity before injury was graded using the modified Tegner activity scale [ 34 ].…”

Section: Methodsmentioning

confidence: 99%

Correlations between isokinetic knee torques and single-leg hop distances in three directions in patients after ACL reconstruction

Aizawa

Hirohata

Ohji

et al. 2021

BMC Sports Sci Med Rehabil

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Background When planning rehabilitation and conditioning for performance enhancement and a return to sports after anterior cruciate ligament reconstruction, identifying the elements of physical function associated with single-leg hop is important. The purpose of this study was to clarify the relationship between single-leg hop distances in three directions and knee extensor and flexor strengths at 6 months after reconstruction. Methods Participants were 47 patients taking part in training sessions for sports involving cutting, pivoting, and jump-landing 6 months after reconstruction using a hamstring tendon. Single-leg hop distances in 3 directions (anterior, lateral, and medial) and isokinetic concentric strengths of knee extension and flexion were assessed at an angular velocity of 60°/s and 180°/s. Simple regression analyses using Spearman’s rank correlation coefficient were performed to assess relationships between single-leg hop distances and knee strengths. Results In the involved limb, correlations between single-leg hop distances in 3 directions and knee strengths were significant (P < 0.01) and correlation coefficients ranged from 0.48 to 0.65. Correlation coefficients between all single-leg hop parameters and knee extension/flexion strengths at an angular velocity of 180°/s were greater than those of 60°/s. Conclusions In this cross-sectional study of patients who participated in sports training sessions that required jump-landings and cutting approximately 6 months after reconstruction using hamstring grafts, isokinetic knee flexor, and extensor torques were moderately to strongly associated with single-leg hop distances in lateral, medial, and anterior directions. Given these relationships, assessments and exercises for knee strength and single-leg hop distances should be planned.

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“…Oral questioning was used to con rm whether the knee that had undergone reconstruction was on the dominant side. The dominant limb was de ned as the leg used to kick a ball to maximal distance 24 . The level of sports activity before injury was graded using the modi ed Tegner activity scale 25 .…”

Section: Measurementsmentioning

confidence: 99%

Knee Extensor and Flexor Strength are Related to One-Leg Hop Distances in Three Directions in Patients Six Months After Anterior Cruciate Ligament Reconstruction

Aizawa¹,

Hirohata²,

Ohji³

et al. 2020

Preprint

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Background: When planning rehabilitation and conditioning for performance enhancement and a return to sports after anterior cruciate ligament reconstruction, identifying the elements of physical function associated with one-leg hop is important. The purpose of this study was to clarify the relationship between one-leg hop distances in 3 directions and knee extensor and flexor strengths at 6 months after reconstruction.Methods: Participants were 47 patients taking part in training sessions for sports involving cutting, pivoting, and jump-landing 6 months after reconstruction using a hamstring tendon. Demographics, activity scale score, days before and after reconstruction, and meniscus surgery procedure were analyzed. One-leg hop distances in 3 directions (anterior, lateral, and medial) and isokinetic strengths of knee extension and flexion were measured. Simple regression analyses using Spearman's rank correlation coefficient were performed to assess relationships between one-leg hop distances and knee strengths.Results: In the involved limb, correlations between one-leg hop distance in 3 directions and knee strengths were significant and effect sizes ranged from medium to large. Correlation coefficients between all one-leg hop parameters and knee extension/flexion strengths at an angular velocity of 180°/s were greater than those of 60°/s.Conclusions: Knee strength showed moderate to high associations with lateral and medial one-leg hop distances in addition to anterior one-leg hop distance. The results of this study will be useful in planning and teaching conditioning to improve multi-directional one-legged hop skills and improve knee strength for a full-scale return to sports after reconstruction.

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Limb-dominance and gender differences in the ground reaction force during single-leg lateral jump-landings

Cited by 14 publications

References 46 publications

Characteristics of ground reaction force and frontal body movement during failed trials of single-leg lateral drop jump-landing task

Characteristics of ground reaction force and frontal body movement during failed trials of single-leg lateral drop jump-landing task

Correlations between isokinetic knee torques and single-leg hop distances in three directions in patients after ACL reconstruction

Knee Extensor and Flexor Strength are Related to One-Leg Hop Distances in Three Directions in Patients Six Months After Anterior Cruciate Ligament Reconstruction

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