Knee Frontal Plane Projection Angle: A Comparison Study Between Drop Vertical Jump and Step-Down Tests With Young Volleyball Athletes

Paz, Gabriel Andrade; Maia, Marianna de Freitas; Santana, Haroldo Gualter; Miranda, Humberto; Lima, Vicente Pinheiro; Willson, John D.

doi:10.1123/jsr.2017-0204

Cited by 14 publications

(9 citation statements)

References 30 publications

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“…Previous research has shown differences in frontal plane knee motion between different lower limb screening tests 25 . Similarly, the current study revealed FPPA was significantly and moderately greater in both limbs during the TJA in comparison to the DVJ protocol.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Drop Jump and Tuck Jump Knee Joint Kinematics in Elite Male Youth Soccer Players: Implications for Injury Risk Screening

Lloyd¹,

Oliver²,

Myer³

et al. 2020

Journal of Sport Rehabilitation

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Context: Despite the popularity of jump-landing tasks being used to identify injury risk factors, minimal data currently exist examining differences in knee kinematics during commonly used bilateral jumping tasks. This is especially the case for rebounding-based protocols involving young athletes. Objective: To compare the frontal plane projection angles (FPPAs) during the drop vertical jump (DVJ) and tuck jump assessment (TJA) in a cohort of elite male youth soccer players of varying maturity status. Methods: A total of 57 male youth soccer players from an English championship soccer club participated in this study. Participants performed 3 trials of the DVJ and TJA, during which movement was recorded with 2-dimensional video cameras. FPPA for both right (FPPA-r) and left (FPPA-l) legs, with values <180° indicative of medial knee displacement. Results: On a whole-group level, FPPA-r (172.7° [7.4°] vs 177.2° [11.7°]; P < .05; effect size [ES] = 0.46) and FPPA-l (173.4° [7.3°] vs 179.2° [11.0°]; P < .05; ES = 0.62) were significantly greater for both limbs in the TJA compared with the DVJ; however, these differences were less consistent when grouped by maturity status. FPPA-r during the TJA was significantly and moderately greater in the circa-peak height velocity (PHV) group compared with the post-PHV cohorts (169.4° [6.4°] vs 175.3° [7.8°]; P < .05; ES = 0.49). Whole-group data showed moderate relationships for FPPA-r and FPPA-l between the TJA and DVJ; however, stronger relationships were shown in circa- and post-PHV players compared with the pre-PHV cohort. Conclusions: Considering that the TJA exposed players to a larger FPPA and was sensitive to between-group differences in FPPA-r, the TJA could be viewed as a more suitable screen for identifying FPPA in young male soccer players.

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Section: Discussionmentioning

confidence: 99%

Comparison of Drop Jump and Tuck Jump Knee Joint Kinematics in Elite Male Youth Soccer Players: Implications for Injury Risk Screening

Lloyd¹,

Oliver²,

Myer³

et al. 2020

Journal of Sport Rehabilitation

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“…A two-dimensional video-analysis was used to measure the knee-valgus/varus frontal-plane projection angle (FPPA) during a Single-Legged Drop Jump test 12,24 . The knee valgus/varus frontal-plane angle was defined as the angle between (1) the ankle midpoint, (2) the patella midpoint and (3) the projection line between the patella midpoint and the anterior superior iliac spine 8 . The Single-Legged Drop Jump test is a test where the subjects were asked to do a single-legged drop from a 50 cm box, to jump immediately as high as possible and to land with only one leg.…”

Section: Dynamic Knee Valgusmentioning

confidence: 99%

“…Video-analysis studies have described the dynamic knee valgus (DKV) during landing, pivoting or deceleration maneuvers as the most common ACL injury in sports as football, basketball or handball [4][5][6][7] . The DKV is a medial collapse of the knee resulting in a hip adduction and internal rotation, tibial abduction and medial knee displacement which increases the ACL strain 8 . Many studies have measured the dynamic knee valgus in the sagittal plane using 2D video-analyisis [9][10][11][12] .…”

mentioning

confidence: 99%

Normative data and correlation between dynamic knee valgus and neuromuscular response among healthy active males: a cross-sectional study

Llurda-Almuzara

Pérez‐Bellmunt

López-de-Celis

et al. 2020

Sci Rep

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The dynamic knee valgus (DKV) during different sport maneuvers has been widely described as risk factor to develop an anterior cruciate ligament injury. Hip and knee muscles seem to have a crucial role to prevent the dynamic knee valgus. This study aimed to give normative and correlational data about DKV and hip and knee neuromuscular response (NMR) among healthy active males. The hypothesis is that DKV could be correlated with hip NMR. A cross-sectional correlational study. Research Anatomy Laboratory. The study was carried out among 50 active, non-injured males. Dynamic Knee-Valgus angle and lower limb posterior chain muscles Neuromuscular Response. DKV was measured using Kinovea software during a Single-Legged Drop Jump test and NMR was measured using tensiomyography and myotonometry for gluteus maximum, biceps femoris, semitendinosus, lateral and medial gastrocnemius. Right and left limbs were both performed and analyzed independently. No significant correlation was observed between DKV and hip and knee muscles NMR. This study shows normative and correlational data about dynamic knee valgus, tensiomyography and myotonometry for healthy and active males. The DKV control seems to be non-correlated with isolated hip and knee muscles NMR so this suggests it is more about Central Nervous System activity than about isolated muscles NMR.

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“…(Table 5) The evaluations carried out in this study were made through 2D analysis, which shows the importance of having simple and low-cost equipment that can bring reliable results in the sports field. Paz et al (2017) 15 , in their study with volleyball athletes, showed that 3D movement analysis is not practical for most clinical or field environments, where athletic performance is often assessed, due to the financial cost, the spatial and time demands of an analysis laboratory. The same authors say that techniques that use 2D analysis with simple, portable, and inexpensive equipment, can be much more useful in these situations.…”

Section: Resultsmentioning

confidence: 99%

Intra and Inter-Rater Reliability in Dynamic Valgus in Soccer Players

Ribeiro

Rodrigues

Bertoncello

2020

Rev Bras Med Esporte

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Introduction: The two-dimensional (2D) methods of dynamic assessment of knee valgus are popular because of their low cost and the fact that they are easy to implement. It is believed that dynamic valgus of the knee is one of the main disorders responsible for non-contact lesions of the anterior cruciate ligament. There are two categories of reliability with regard to data collectors: inter-rater (reliability among multiple data collectors) and intra-rater (reliability of a single data collector). Objectives: To assess intra and inter-rater reliability during the step-down test in professional soccer athletes, using initial and final angles for each test repetition. Methods: The sample consisted of 29 professional soccer players. All study participants were considered by club physiotherapists to be free of any musculoskeletal injury and were performing daily training tasks. Two male evaluators participated in the study. Results: For each data group, mean and standard deviation were determined. The intra- and inter-rater reliability of all data was determined using the intraclass correlation coefficient (ICC), with a confidence interval of 95% and alpha of p ≤ 0.05. Rater 1 was classified in the first intra-rater stage of the analysis for heel touch, with good to excellent reliability. For the inter-rater analysis, both for heel touch and for greater valgus angle, there was excellent reliability among the raters. Conclusion: It was concluded that there is high inter-rater and intra-rater reliability through two-dimensional analysis using the Step Down Test in professional soccer athletes. Level of evidence II; Development of diagnostic criteria in consecutive patients (with a “gold” reference standard applied).

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Knee Frontal Plane Projection Angle: A Comparison Study Between Drop Vertical Jump and Step-Down Tests With Young Volleyball Athletes

Cited by 14 publications

References 30 publications

Comparison of Drop Jump and Tuck Jump Knee Joint Kinematics in Elite Male Youth Soccer Players: Implications for Injury Risk Screening

Comparison of Drop Jump and Tuck Jump Knee Joint Kinematics in Elite Male Youth Soccer Players: Implications for Injury Risk Screening

Normative data and correlation between dynamic knee valgus and neuromuscular response among healthy active males: a cross-sectional study

Intra and Inter-Rater Reliability in Dynamic Valgus in Soccer Players

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