scholarly journals Patellar Tendon Structural Adaptations Occur during Pre-Season and First Competitive Cycle in Male Professional Handball Players

2021 ◽  
Vol 18 (22) ◽  
pp. 12156
Author(s):  
Silvia Ortega-Cebrián ◽  
Ramon Navarro ◽  
Sergi Seda ◽  
Sebastià Salas ◽  
Myriam Guerra-Balic
Keyword(s):  
Patellar Tendon ◽  
Cross Sectional Study ◽  
Patellar Tendinopathy ◽  
Sectional Study ◽  
Cross Sectional ◽  
Structural Alterations ◽  
Counter Movement Jump ◽  
Injured Tendon ◽  
Structural Adaptations ◽  
Distal Tendon

Background: While there is evidence that tendon adapts to training load, structural alterations in the patellar tendon in response to training loads are still unclear. The aim of this study is to identify changes in patellar tendon structure throughout pre-season and after finalizing the first competitive cycle. Methods: Nineteen professional handball players participated in the aforesaid cross-sectional study, in which patellar tendon scan and counter movement jump (CMJ) performance were conducted. Measurements were taken on the first and last day of pre-season training, and at the end of the first competitive cycle. Results: The results revealed that variation on the tendon structure occurred, mainly at the end of pre-season training; for injured tendons this occurred at the proximal (Right p = 0.02), distal (Right p = 0.01), and (Left p = 0.02) tendon, while changes in healthy tendons occurred at the mid (Left p = 0.01) and distal tendon (Right p = 0.01). At the end of the first competitive cycle, changes were observed in the distal injured tendon (p = 0.02). Conclusion: Patellar tendon shows greater structural change after completing pre-season training than at the end of the first competitive cycle, from which it may be inferred that gradual loading during pre-season training allows the tendon to adapt and potentially decrease the onset of patellar tendinopathy.

scholarly journals Prevalence of Patellar Tendinopathy and Patellar Tendon Abnormality in Male Collegiate Basketball Players: A Cross-Sectional Study

2019 ◽  
Vol 54 (9) ◽  
pp. 953-958 ◽  
Author(s):  
Marcey Keefer Hutchison ◽  
Jeff Houck ◽  
Tyler Cuddeford ◽  
Robin Dorociak ◽  
Jason Brumitt
Keyword(s):  
Confidence Interval ◽  
Patellar Tendon ◽  
Odds Ratio ◽  
National Collegiate Athletic Association ◽  
Cross Sectional Study ◽  
Patellar Tendinopathy ◽  
Sectional Study ◽  
Basketball Players ◽  
Cross Sectional ◽  
Collegiate Basketball

Context Patellar tendinopathy (PT) is a degenerative condition known to affect athletes who participate in sports such as basketball and volleyball. Patellar tendinopathy is a challenging condition to treat and may cause an athlete to prematurely retire from sport. The prevalence of PT in male collegiate basketball players is unknown. Objective To determine the prevalence of PT and patellar tendon abnormality (PTA) in a population of male collegiate basketball players. Design Cross-sectional study. Setting National Collegiate Athletic Association Divisions II and III, National Association of Intercollegiate Athletics, and Northwest Athletic Conference male collegiate basketball teams were assessed in a university laboratory setting. Patients or Other Participants Ninety-five male collegiate basketball players (age = 20.0 ± 1.7 years). Main Outcome Measure(s) A diagnostic ultrasound image of an athlete's patellar tendon was obtained from each knee. Patellar tendinopathy was identified based on a player's symptoms (pain with palpation) and the presence of a hypoechoic region on an ultrasonographic image. Results A majority of participants, 53 of 95 (55.8%), did not present with pain during palpation or ultrasonographic evidence of PTA. Thirty-two basketball players (33.7%) displayed ultrasonographic evidence of PTA in at least 1 knee; 20 of those athletes (21.1%) had PT (pain and tendon abnormality). Nonstarters were 3.5 times more likely to present with PTA (odds ratio = 3.5, 95% confidence interval = 1.3, 9.6; P = .017) and 4 times more likely to present with PT (odds ratio = 4.0, 95% confidence interval = 1.1, 14.8; P = .038) at the start of the season. Conclusions One in 3 male collegiate basketball players presented with either PT or PTA. Sports medicine professionals should evaluate basketball athletes for PT and PTA as part of a preseason screening protocol.

Risk factors for patellar tendinopathy in volleyball players: a cross-sectional study

2011 ◽  
Vol 45 (6) ◽  
pp. 536-536
Author(s):  
H. van der Worp ◽  
M. van Ark ◽  
J. Zwerver ◽  
I. van den Akker-Scheek
Keyword(s):  
Risk Factors ◽  
Cross Sectional Study ◽  
Patellar Tendinopathy ◽  
Sectional Study ◽  
Cross Sectional ◽  
Volleyball Players

scholarly journals Functional and Structural Adaptations of Skeletal Muscle in Long‐Term Juvenile Dermatomyositis: A Controlled Cross‐Sectional Study

2020 ◽  
Vol 72 (5) ◽  
pp. 837-848
Author(s):  
Kristin Schjander Berntsen ◽  
Truls Raastad ◽  
Henriette Marstein ◽  
Eva Kirkhus ◽  
Else Merckoll ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Juvenile Dermatomyositis ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Structural Adaptations

scholarly journals Relationship between the anteroposterior diameter of the patellar tendon. Pain and functionality in volleyball players

2019 ◽  
Vol 02 (02) ◽  
pp. 067-067
Author(s):  
Calvo Gonell A. ◽  
Macia Soler L. ◽  
Moncho J.
Keyword(s):  
Patellar Tendon ◽  
Sports Injuries ◽  
Cross Sectional Study ◽  
Musculoskeletal Ultrasound ◽  
Patellar Tendinopathy ◽  
Ground Substance ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Anteroposterior Diameter ◽  
Volleyball Players

Abstract Introduction and Aim Overuse injuries in volleyball represent between 50% and 80% of total injuries, of which, 80% are patellar tendinopathies. Volleyball is the sport with the greatest prevalence of patellar tendinopathy, estimated at 44.6%, followed by basketball with 31.9%. The tendon thickness bears a close and direct relationship with abnormal and diffuse images with accumulation of ground substance, and affecting both sexes, although less marked in women. Aim To determine whether the antero-posterior diameter of the patellar tendon in volleyball players is associated with a greater sensation of pain and reduced functionality. Material and Methods An observational, descriptive, cross-sectional study on volleyball players. The scores on the VISA-P scale, the visual analog scale (VAS) and, using musculoskeletal ultrasound, the anteroposterior diameter of the patellar tendon at 5 and 10 mm distal to the inferior pole of the patella. Multiple linear regression models were constructed to adjust the effect of the anteroposterior diameter on the VAS and the VISA-P scores. Results The final sample comprised 112 players. The anteroposterior diameter was greater in men and was significantly associated with scores on the VAS and the VISA-P for both tendons, and therefore, the greater the score of the diameter, the greater the score on the VAS and the lesser the score on the VISA-P. Conclusions The measurement of the antero-posterior diameter of the patellar tendon using musculoskeletal ultrasound may be useful for the prevention of sports injuries in volleyball players, as it is significantly associated with a greater perception of pain and reduced functionality.

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