Prevalence of Jumper’s Knee Among Nonelite Athletes From Different Sports

Zwerver, Johannes; Bredeweg, Steef W; Akker‐Scheek, Inge van den

doi:10.1177/0363546511413370

Cited by 286 publications

(241 citation statements)

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“…Patellar tendinopathy, also known as jumper's knee (Ferretti, Ippolito, Mariani, & Puddu, 1983), is one of the most frequent overuse injuries among athletes, with an overall prevalence ranging from 8.5% to 14.2% in large epidemiological studies (Lian, Engebretsen, & Bahr, 2005;Zwerver, Bredeweg, & van den Akker-Scheek, 2011). The condition is even more prevalent in sports characterised by high demands on leg extensor speed and power, such as volleyball and basketball, where it has a prevalence of 45% and 32%, respectively (Ferretti, Papandrea, & Conteduca, 1990;Lian et al, 2005;Zwerver et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The condition is even more prevalent in sports characterised by high demands on leg extensor speed and power, such as volleyball and basketball, where it has a prevalence of 45% and 32%, respectively (Ferretti, Papandrea, & Conteduca, 1990;Lian et al, 2005;Zwerver et al, 2011). The risk factors suggested include male sex, younger age, high training volume, high jumping load, high performance in jump tests and hard playing surfaces (Briner & Kacmar, 1997;Ferretti, 1986;Lian, Engebretsen, Ovrebo, & Bahr, 1996;Lian, Refsnes, Engebretsen, & Bahr, 2003;Visnes & Bahr, 2013;Zwerver et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Application of a tri-axial accelerometer to estimate jump frequency in volleyball

Jarning

Mok

Hansen

et al. 2015

Sports Biomechanics

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This file was dowloaded from the institutional repository Brage NIH -brage.bibsys.no/nih Jarning, J. M., Mok, K.-M., Hansen, B. H., Bahr, R. (2015 AbstractPatellar tendinopathy is prevalent among athletes, and most likely associated with a high jumping load. If methods for estimating jump frequency were available, this could potentially assist in understanding and preventing this condition. The objective of this study was to explore the possibility of using peak vertical acceleration (PVA) or peak resultant acceleration (PRA) measured by an accelerometer to estimate jump frequency. Twelve male elite volleyball players (22.5  1.6 yrs) performed a training protocol consisting of 7 typical motion patterns, including jumping and non-jumping movements. Accelerometer data from the trial were obtained using a tri-axial accelerometer. In addition, we collected video data from the trial. Jump-float serving and spike jumping could not be distinguished from non-jumping movements using differences in PVA or PRA. Furthermore, there were substantial inter-participant differences in both the PVA and the PRA within and across movement types (p<0.05). These findings suggest that neither PVA nor PRA measured by a tri-axial accelerometer is an applicable method for estimating jump frequency in volleyball. A method for acquiring real-time estimates of jump frequency remains to be verified. However, there are several alternative approaches, and further investigations are needed.Word count: 3317, including tables and figure legends

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of a tri-axial accelerometer to estimate jump frequency in volleyball

Jarning

Mok

Hansen

et al. 2015

Sports Biomechanics

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“…in risk factors or loading. Symptoms of patella TP in amateur athletes last in average 18 months 35 . In Achilles TP 29% fail conservative treatment 36 .…”

Section: Discussionmentioning

confidence: 99%

Topical polidocanol application in combination with static stretching in tendinopathies: a prospective pilot study

Gatz

Schrading

Dirrichs

et al. 2017

MLTJ

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SummaryBackground: Highly operator-based injection therapy with vasosclerosing and anesthetic polidocanol is used for tendinopathies. This pilot-study evaluates the topical application of polidocanol gel. Methods: Prospective case series. 39 patients with tendinopathies (14 Achilles, 14 patella, 11 wrist extensors) with a symptom duration > 6 months were included. Polidocanol and static stretching were the therapy in the first 2 weeks, while static stretching was continuously performed for 6 months.

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“…Poor (2)(3)(4) videos between jump-landing repetitions to document their ratings. Two-Dimensional Motion Analysis.…”

Section: Tests and Measuresmentioning

confidence: 99%

Agreement Between Visual Assessment and 2-Dimensional Analysis During Jump Landing Among Healthy Female Athletes

Rabin

Einstein

Kozol

2018

Journal of Athletic Training

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Context: Altered movement patterns, including increased frontal-plane knee movement and decreased sagittal-plane hip and knee movement, have been associated with several knee disorders. Nevertheless, the ability of clinicians to visually detect such altered movement patterns during high-speed athletic tasks is relatively unknown.Objective: To explore the association between visual assessment and 2-dimensional (2D) analysis of frontal-plane knee movement and sagittal-plane hip and knee movement during a jump-landing task among healthy female athletes.Design: Cross-sectional study. Setting: Gymnasiums of participating volleyball teams. Patients or Other Participants: A total of 39 healthy female volleyball players (age ¼ 21.0 6 5.2 years, height ¼ 172.0 6 8.6 cm, mass ¼ 64.2 6 7.2 kg) from Divisions I and II of the Israeli Volleyball Association.Main Outcome Measure(s): Frontal-plane knee movement and sagittal-plane hip and knee movement during jump landing were visually rated as good, moderate, or poor based on previously established criteria. Frontal-plane knee excursion and sagittal-plane hip and knee excursions were measured using free motion-analysis software and compared among athletes with different visual ratings of the corresponding movements.Results: Participants with different visual ratings of frontalplane knee movement displayed differences in 2D frontal-plane knee excursion (P , .01), whereas participants with different visual ratings of sagittal-plane hip and knee movement displayed differences in 2D sagittal-plane hip and knee excursions (P , .01).Conclusions: Visual ratings of frontal-plane knee movement and sagittal-plane hip and knee movement were associated with differences in the corresponding 2D hip and knee excursions. Visual rating of these movements may serve as an initial screening tool for detecting altered movement patterns during jump landings.

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Prevalence of Jumper’s Knee Among Nonelite Athletes From Different Sports

Cited by 286 publications

References 30 publications

Application of a tri-axial accelerometer to estimate jump frequency in volleyball

Application of a tri-axial accelerometer to estimate jump frequency in volleyball

Topical polidocanol application in combination with static stretching in tendinopathies: a prospective pilot study

Agreement Between Visual Assessment and 2-Dimensional Analysis During Jump Landing Among Healthy Female Athletes

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