Structural and biomechanical changes in shoulders of junior javelin throwers: a comprehensive evaluation as a proof of concept for a preventive exercise protocol

Beitzel, Knut; Zandt, Julia F.; Buchmann, Stefan; Beitzel, Kirsten I.; Schwirtz, Ansgar; Imhoff, Andreas B.; Brucker, Peter U.

doi:10.1007/s00167-014-3223-y

Cited by 23 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The clinical relevance of deficits in sensorimotor function despite good outcomes in clinical scores has already been indicated in the literature [ 17 ]. Beitzel et al recently demonstrated that elite youth javelin throwers demonstrated structural changes, even though they did not present with a history of pain or injury of the shoulder, underlining the importance of continuous postoperative rehabilitation [ 18 ]. Clinically, this may be one of the major obstacles to return to full shoulder function after injury and surgical intervention.…”

Section: Discussionmentioning

confidence: 99%

Center of pressure (COP) measurement in patients with confirmed successful outcomes following shoulder surgery show significant sensorimotor deficits

Ehmann

Berthold

Reuter

et al. 2021

Knee Surg Sports Traumatol Arthrosc

Self Cite

View full text Add to dashboard Cite

Purpose To determine the sensorimotor and clinical function of patients with confirmed successful outcome after either undergoing acromioclavicular joint (ACJ) stabilization, Bankart repair (BR), or rotator cuff repair (RC), and to compare these measures to the contralateral, healthy side without history of previous injuries or surgeries of the upper extremity. It was hypothesized that patients of each interventional group would have inferior sensorimotor function of the shoulder joint compared to the contralateral, healthy side, while presenting with successful clinical and functional outcomes. Methods Three intervention groups including ten patients who had confirmed successful clinical and functional outcomes after either undergoing ACJ stabilization, BR, or RC were evaluated postoperatively at an average follow-up of 31.7 ± 11.6 months. Additionally, a healthy control group (CG) of ten patients was included. Clinical outcomes were assessed using the Constant–Murley (CM) and American Shoulder and Elbow Surgeons (ASES) Score. Pain was evaluated using the visual analogue scale (VAS). Sensorimotor function was assessed by determining the center of pressure (COP) of the shoulder joint in a one-handed support task in supine position on a validated pressure plate. Results Each interventional group demonstrated excellent clinical outcome scores including the CM Score (ACJ 83.3 ± 11.8; BR 89.0 ± 10.3; RC 81.4 ± 8.8), ASES Score (ACJ 95.5 ± 7.0; BR 92.5 ± 9.6; RC 96.5 ± 5.2), and VAS (ACJ 0.5 ± 0.9; BR 0.5 ± 0.8; RC 0.5 ± 0.8). Overall, the CG showed no significant side-to-side difference in COP, whereas the ACJ-group and the BR-group demonstrated significantly increased COP compared to the healthy side (ACJ 103 cm vs. 98 cm, p = 0.049; BR: 116 cm vs. 102 cm, p = 0.006). The RC-group revealed no significant side-to-side difference (120 cm vs. 108 cm, n.s.). Conclusion Centre of pressure measurement detected sensorimotor functional deficits following surgical treatment of the shoulder joint in patients with confirmed successful clinical and functional outcomes. This may indicate that specific postoperative training and rehabilitation protocols should be established for patients who underwent surgery of the upper extremity. These results underline that sensorimotor training should be an important component of postoperative rehabilitation and physiotherapeutic activities to improve postoperative function and joint control. Level of evidence IV.

show abstract

Section: Discussionmentioning

confidence: 99%

Center of pressure (COP) measurement in patients with confirmed successful outcomes following shoulder surgery show significant sensorimotor deficits

Ehmann

Berthold

Reuter

et al. 2021

Knee Surg Sports Traumatol Arthrosc

Self Cite

View full text Add to dashboard Cite

show abstract

“…im Rahmen spezifischer Trainings, zur primären Vermeidung einer symptomatischen Werfer-Schulter hingewiesen werden [41]. Dabei sollten sich die Maßnahmen nicht nur auf das Glenohumeralgelenk und den Schultergürtel beschränken, sondern die gesamte kinetische Bewegungskette berücksichtigen [42].…”

Section: Therapieunclassified

Die „Handballer-Schulter“ im Fokus von Diagnostik und Therapie

Hepp

Henkelmann

2020

Sportverletz Sportschaden

View full text Add to dashboard Cite

ZusammenfassungHandball zählt zu den beliebtesten Mannschaftssportarten in Deutschland. Bei Diagnostik und Therapie von Schulterverletzungen und Schulterbeschwerden muss zwischen der sportartspezifischen jahrelangen Adaptation und einer vermeintlichen Dekompensation zwingend unterschieden werden. Im Gegensatz zu reinen Wurfsportarten, wie z. B. Baseball oder Speerwerfen, werden im Handball wegen des gleichzeitigen Gegnerkontaktes die beabsichtigten Bewegungsabläufe durch erlaubte und unerlaubte Behinderungen oft plötzlich und ruckartig beeinflusst. Hierdurch können zusätzliche Verletzungen entstehen. Der Übergang einer physiologisch adaptierten Handballer-Schulter zu einer therapiebedürftigen pathologischen Werfer-Schulter ist meist fließend. Die Werfer-Schulter ist durch eine Leistungseinschränkung charakterisiert, die durch Schmerzen in der Schulter bei wiederholter sportartspezifischer Belastung hervorgerufen wird. Neben einer gründlichen klinischen Untersuchung ist, aufgrund der Tatsache, dass Veränderungen der Handballer-Schulter sich in der Muskultur, den Sehnen und im Knochen im Sinne von Überlastungsreaktionen (bone bruise) darstellen, das MRT die bevorzugte Untersuchungsmethode. Neben einer Sportkarenz und einer suffizienten Schmerztherapie sollte eine gezielte Physiotherapie erfolgen. Die Interpretation der MRT-Ergebnisse sollte immer mit den Symptomen und den klinischen Untersuchungsergebnissen abgeglichen werden. Indikationen zur Operation sind eine ausbleibende Besserung nach gezielter Schmerz- und Physiotherapie, strukturelle Schäden entsprechend der Symptome ohne Heilungschance bzw. mit höherer Gewissheit der Verbesserung der Beschwerden und Funktion durch eine Operation. Nach einer operativen Therapie spielt die anschließende Rehabilitation eine große Rolle. Eine Sportfähigkeit ist je nach Verletzung in bis zu 90 % wieder möglich.

show abstract

“…In water polo players, biomechanical factors and specific requirements for throwing a ball while treading water tend to promote greater IR than ER shoulder strength ( Barrenetxea-Garcia et al, 2019 ), which is associated with a high risk of imbalances of the shoulder and other problems ( Clarsen et al, 2014 ). Although biomechanical changes in the shoulder do not always lead to pain ( Beitzel et al, 2016 ), they are a source of clinically meaningful changes in water polo players, such as proprioceptive deficits ( Mota and Ribeiro, 2012 ), patterns in forward scapular posture, and alterations in scapular muscle activity ( Whiteley et al, 2012 ). Shoulder injuries among water polo players range from 25% to 80%, and this reflects the magnitude of the phenomenon ( Miller et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Relationship between strength training and shoulder pain in male and female water polo players

Barrenetxea-Garcia,

Gil,

Esain

et al. 2023

J Exerc Rehabil

View full text Add to dashboard Cite

The objective of this study was to assess the effect of two different strength-training methods on both male and female water polo players’ performance and shoulder pain. The players were randomly allocated to a maximum strength (MS: 14 males, 8 females) or power strength (PS: 13 males, 8 females) training group. Before and after the intervention, we assessed player´s anthropometric characteristics, shoulder internal and external rotation strength, hand grip strength, upper body strength, countermovement jump height, throwing velocity, swimming speed, shoulder pain on a visual analogue scale (VAS), wellness, and rate of perceived exertion per session. We observed no significant improvement (P< 0.05) in specific skills but enhancement in hand grip strength in male players. In female players in the MS group, throwing speed and bench press weight decreased significantly (P< 0.05). Shoulder external rotation strength at 240°/sec in male MS group players and shoulder external rotation strength at 60°/sec in female PS group players decreased significantly (P< 0.05). In addition, from the first to the last week, shoulder pain increased significantly (P< 0.05) in all players. Inverse correlations (P< 0.05) were found between VAS and shoulder rotation strength in males in the PS group, and between wellness and shoulder internal rotation strength in men in the MS group and women in the PS group. We found that both MS and PS training did not enhance performance and increased shoulder pain in male and female water polo players.

show abstract

Structural and biomechanical changes in shoulders of junior javelin throwers: a comprehensive evaluation as a proof of concept for a preventive exercise protocol

Abstract: IV.

Cited by 23 publications

References 47 publications

Center of pressure (COP) measurement in patients with confirmed successful outcomes following shoulder surgery show significant sensorimotor deficits

Center of pressure (COP) measurement in patients with confirmed successful outcomes following shoulder surgery show significant sensorimotor deficits

Die „Handballer-Schulter“ im Fokus von Diagnostik und Therapie

Relationship between strength training and shoulder pain in male and female water polo players

Contact Info

Product

Resources

About