Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study

# Background Very limited investigations have been conducted exploring risk factors for injury in water polo players. A gap remains in the literature regarding identification of variables that should be considered as part of player screening evaluations. # Purpose To estimate whether previous i...

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Autores principales:	Félix Croteau, David Paradelo, David Pearsall, Shawn Robbins
Formato:	article
Lenguaje:	EN
Publicado:	North American Sports Medicine Institute 2021
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/1396f61ae4b74365b72ea89bf9cb4c77
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spelling	oai:doaj.org-article:1396f61ae4b74365b72ea89bf9cb4c772021-12-02T16:51:47ZRisk Factors for Shoulder Injuries in Water Polo: a Cohort Study2159-2896https://doaj.org/article/1396f61ae4b74365b72ea89bf9cb4c772021-08-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/25432-risk-factors-for-shoulder-injuries-in-water-polo-a-cohort-study.pdfhttps://doaj.org/toc/2159-2896# Background Very limited investigations have been conducted exploring risk factors for injury in water polo players. A gap remains in the literature regarding identification of variables that should be considered as part of player screening evaluations. # Purpose To estimate whether previous injury, changes in strength, range of motion (ROM) or upward scapular rotation (UR) are related to shoulder injuries in water polo players. # Study Design Descriptive cohort study # Methods Thirty-nine international-level players participated (19 males). Shoulder internal (IR) and external rotation (ER) peak torque was measured using an isokinetic device (CONtrex MJ). Shoulder ROM was measured passively using standard goniometry. Scapular UR was measured using a laser digital inclinometer. At baseline players were divided into groups: those with and without previous shoulder injuries. Independent t-tests and Mann-Whitney U tests were used to compare the study variables between groups. After nine months, a second analysis compared the same athletes, who were then grouped by those who had or had not sustained new injuries. Effect sizes were calculated with a Hedge’s g. Chi squared analysis compared proportion of injured players with and without previous injury. # Results Eighteen participants (46%) had previous injuries at baseline. Players with a previous injury showed higher peak torques for IR (0.62±0.15 vs 0.54±0.13N/kg, p=0.04, g=0.60); larger loss of IR ROM (9.9±9.1 vs 4.1±7.5°, p=0.04, g=0.68), but no statistical difference in UR (p=0.70). After nine months, there were no statistical strength differences between groups. Loss of IR ROM was significantly higher in the injured group (9.8±9.8 vs 4.0±6.7°, p=0.04, g=0.68), as well as UR (13.0±3.0 vs 10.4±3.3°, p=0.01, g=0.81). History of previous injury was significantly related to developing a new injury (OR 6.5, p=0.02). Logistic regression found previous injury and UR most important contributors to injury risk. # Conclusions Previous injury, changes in IR ROM and UR are related to new shoulder injuries in water polo, but further variables such as rest, training load, or psychosocial factors may explain the incidence of new injuries. # Level of Evidence Level 3Félix CroteauDavid ParadeloDavid PearsallShawn RobbinsNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 4 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Félix Croteau David Paradelo David Pearsall Shawn Robbins Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
description	# Background Very limited investigations have been conducted exploring risk factors for injury in water polo players. A gap remains in the literature regarding identification of variables that should be considered as part of player screening evaluations. # Purpose To estimate whether previous injury, changes in strength, range of motion (ROM) or upward scapular rotation (UR) are related to shoulder injuries in water polo players. # Study Design Descriptive cohort study # Methods Thirty-nine international-level players participated (19 males). Shoulder internal (IR) and external rotation (ER) peak torque was measured using an isokinetic device (CONtrex MJ). Shoulder ROM was measured passively using standard goniometry. Scapular UR was measured using a laser digital inclinometer. At baseline players were divided into groups: those with and without previous shoulder injuries. Independent t-tests and Mann-Whitney U tests were used to compare the study variables between groups. After nine months, a second analysis compared the same athletes, who were then grouped by those who had or had not sustained new injuries. Effect sizes were calculated with a Hedge’s g. Chi squared analysis compared proportion of injured players with and without previous injury. # Results Eighteen participants (46%) had previous injuries at baseline. Players with a previous injury showed higher peak torques for IR (0.62±0.15 vs 0.54±0.13N/kg, p=0.04, g=0.60); larger loss of IR ROM (9.9±9.1 vs 4.1±7.5°, p=0.04, g=0.68), but no statistical difference in UR (p=0.70). After nine months, there were no statistical strength differences between groups. Loss of IR ROM was significantly higher in the injured group (9.8±9.8 vs 4.0±6.7°, p=0.04, g=0.68), as well as UR (13.0±3.0 vs 10.4±3.3°, p=0.01, g=0.81). History of previous injury was significantly related to developing a new injury (OR 6.5, p=0.02). Logistic regression found previous injury and UR most important contributors to injury risk. # Conclusions Previous injury, changes in IR ROM and UR are related to new shoulder injuries in water polo, but further variables such as rest, training load, or psychosocial factors may explain the incidence of new injuries. # Level of Evidence Level 3
format	article
author	Félix Croteau David Paradelo David Pearsall Shawn Robbins
author_facet	Félix Croteau David Paradelo David Pearsall Shawn Robbins
author_sort	Félix Croteau
title	Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
title_short	Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
title_full	Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
title_fullStr	Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
title_full_unstemmed	Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
title_sort	risk factors for shoulder injuries in water polo: a cohort study
publisher	North American Sports Medicine Institute
publishDate	2021
url	https://doaj.org/article/1396f61ae4b74365b72ea89bf9cb4c77
work_keys_str_mv	AT felixcroteau riskfactorsforshoulderinjuriesinwaterpoloacohortstudy AT davidparadelo riskfactorsforshoulderinjuriesinwaterpoloacohortstudy AT davidpearsall riskfactorsforshoulderinjuriesinwaterpoloacohortstudy AT shawnrobbins riskfactorsforshoulderinjuriesinwaterpoloacohortstudy
_version_	1718382903073701888

Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study

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