title: Relationship between scapular muscle and core endurance in healthy subjects.
abstract: BACKGROUND
  Scapular muscle endurance and core endurance reportedly influence shoulder injury risk. The exact relationship between scapular muscle endurance and core endurance, and how they impact one another in the healthy subjects remain unclear.
  
  
  OBJECTIVE
  To investigate the relationship between scapular muscle endurance and core endurance in healthy subjects.
  
  
  METHODS
  Fifty healthy volunteers (23 males, 27 females; mean age 20.42 ± 1.04 years) were participated in this study. Endurance of the serratus anterior and trapezius muscles was assessed using the scapular muscle endurance test. Sorensen test (endurance of trunk extensor muscles), trunk flexor endurance test, and side bridge test (endurance of lateral core muscles) were conducted to assess the core endurance. Pearson's product moment correlations examined relationships between scapular muscle endurance and each of the core endurance tests scores.
  
  
  RESULTS
  Scapular muscle endurance test scores showed a positive correlation with the side bridge test scores (r = 0.414; p = 0.003). No significant correlation was found between scapular muscle endurance test scores and the other core endurance tests scores (p > 0.05).
  
  
  CONCLUSIONS
  There appears to be a link between the scapular muscle endurance and lateral core muscles in healthy subjects; however, more research is needed to provide a definitive answer on the nature of this relationship. Further studies involving patients with shoulder pathology are warranted.
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Hazar Kanik
authors.forename: Omer Osman
authors.initials: OO
authors.lastname: Pala
authors.forename: Gurkan
authors.initials: G
authors.lastname: Gunaydin
authors.forename: Ugur
authors.initials: U
authors.lastname: Sozlu
authors.forename: Zeynep Beyza
authors.initials: ZB
authors.lastname: Alkan
authors.forename: Selda
authors.initials: S
authors.lastname: Basar
authors.forename: Seyit
authors.initials: S
authors.lastname: Citaker
mesh_terms: D004576:Electromyography; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*; D010807:Physical Endurance; D012540:Scapula / Q000502:physiology; D012782:Shoulder; D064171:Superficial Back Muscles; D060726:Torso; D055815:Young Adult
keywords: Trapezius; serratus anterior; side bridge test; sorensen test