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. 2022 Dec 2;30(spe2):e251074.
doi: 10.1590/1413-785220223002e251074. eCollection 2022.

EVALUATION OF SCAPULAR DYSKINESIS IN CROSSFIT®- PRACTICING ATHLETES

Luciana Andrade da Silva  1 , Caio Santos Checchia  1 , Guilherme Vieira Gonçalves  1 , Luiz Henrique Gallego Conte  1 , Dinah Santos Santana  2 , Ana Maria Forti Barela  3
Affiliations

EVALUATION OF SCAPULAR DYSKINESIS IN CROSSFIT®- PRACTICING ATHLETES

Luciana Andrade da Silva et al. Acta Ortop Bras. .

Abstract
in English, Portuguese

Objective: Evaluate the scapular movement of Crossfit® practitioners and identify whether they present an increased incidence of scapular dyskinesis (SD) compared to non-practitioners.

Method: A transversal study was evaluated quantitatively and dynamically, using retro-reflective spherical markers, the scapular movements of ten volunteers composing the control group, and 11 Crossfit® practitioners. The control group's results were used as a normality parameter and compared to those of the Crossfit® practitioner's group.

Results: It was identified that the superior scapular rotation in the ascending phase is inferior in the group of Crossfit® practitioners (p = 0.02).

Conclusion: The regular practice of Crossfit® causes scapular dyskinesis (SD), with alteration in the scapular superior rotation movement. Level of Evidence III: Retrospective comparative .

Objetivo: Avaliar o movimento escapular de praticantes de Crossfit® e identificar se apresentam incidência aumentada de discinese escapular (DE) quando comparados a não praticantes.

Método: Estudo transversal que avaliou de forma quantitativa e dinâmica, utilizando marcadores retro-refletivos esféricos, os movimentos escapulares de dez voluntários, compondo o grupo controle, e 11 praticantes de Crossfit®. Os resultados do grupo controle foram utilizados como parâmetro de normalidade e comparados aos do grupo de praticantes de Crossfit®.

Resultados: Identificou-se que a rotação superior escapular na fase ascendente é inferior no grupo de praticantes de Crossfit® (p = 0,02).

Conclusão: A prática regular de Crossfit® causa discinese escapular (DE), com alteração no movimento de rotação superior da escápula. Nível de Evidência III: Retrospectivo comparativo .

Keywords: Scapula; Shoulder; Sports Medicine.

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Conflict of interest statement

All authors declare no potential conflict of interest related to this article.

Figures

Figure 1
Figure 1. Arrangement of spherical retro-reflective markers. A, posterior view; B, anterior view; C, side view.
Figure 2
Figure 2. Scapular movements in the three planes. A, coronal plane; B, axial plane; C, sagittal plane.
Figure 3
Figure 3. Mean values (± standard deviation) for inclination, upward rotation, and medial rotation of the scapula (in degrees) in relation to the trunk during the ascending (on the left side) and descending (on the right side) phases of the shoulder upward movement for the dominant hemibody in the control group (white squares) and group of Crossfit® practitioners (black sqaures). Note: for the inclination movement, positive values indicate anterior inclination and negative values indicate posterior inclination, as shown in Figure 2.
See this image and copyright information in PMC

References

    1. Glassman G. Understanting CrossFit. Crossfit J. 2007;56:1–2.
    1. Sprey J, Ferreira T, De Lima M, Duarte A, Jr, Jorge P, Santili C. An epidemiological profile of Crossfit athletes in Brazil. Orthop J Sports Med. 2016;4(8):39–45. - PMC - PubMed
    1. Mello AMS, Batista LSP, Oliveira VMA, Pitangui ACR, Cattuzzo MT, Araujo RC. Associação entre discinese escapular e dor no ombro em praticantes de Musculação. Rev Bras Ciênc Saúde. 2014;18(4):309–314.
    1. Burn MT, McCulloch PC, Lintner DM, Liberman SR, Harris JD. Prevalence of scapular dyskinesis in overhead and nonoverhead athletes. Br J Sports Med. 2016;4(2):55–61. - PMC - PubMed
    1. Pollock ML, Gaesser GA, Butcher JD, Després JP, Dishman RK, Franklin BA, et al. ACSM position stand: the recommended quantity and quality of exercise for developing and maintaining cardiorespiratory and muscular fitness, and flexibility in healthy adults. MSSE. 1998;30(6):975–991. - PubMed

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