A New Functional Screening Tool For Lower Limb Injury Risk: A Retrospective Cohort Study

Posture, a potentially modifiable injury risk factor, is considered important in injury screening/prevention in athletes, yet few studies investigate relationships between posture and injury. This prospective cohort study investigated whether static posture is associated with lower limb injury risk in male football players (n = 263). Nine aspects of static standing posture (left and right rearfoot, knee interspace, lateral knee, lumbar lordosis, thoracic kyphosis, scoliosis S and C, forward head) were assessed from photographs during the pre-season using the modified Watson and Mac Donncha scale, which was dichotomised for analysis (deviated or normal). Player characteristics (age, height, mass, body mass index, competition level), match/training exposure, and previous and in-season non-contact lower limb injuries were recorded. Binary logistic regression investigated relationships between posture and injury (previous and in-season). Eighty previous and 24 in-season lower limb injuries were recorded. Previous injury was not associated with any postural variable. In-season injury was associated with previous injury (OR = 3.04, 95% CI 1.20–7.68, p = 0.02) and having a normal thoracic curve compared to kyphosis (OR = 0.38, 95% CI 0.15–1.00, p = 0.05) but no other postural variables. Static postural deviations observed in male football players in the pre-season are not typically associated with non-contact lower limb injury risk; thus, they are unlikely to add value to pre-season screening programs.

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Concentric and eccentric isokinetic hamstring injury risk among 582 professional elite soccer players: a 10-years retrospective cohort study

BMJ Open Sport & Exercise Medicine ◽

10.1136/bmjsem-2020-000868 ◽

2020 ◽

Vol 6 (1) ◽

pp. e000868

Author(s):

Ricardo Lima Burigo ◽

Robson Dias Scoz ◽

Bruno Mazziotti de Oliveira Alves ◽

Rubens Alexandre da Silva ◽

Cesar Augusto Melo-Silva ◽

...

Keyword(s):

Regression Analysis ◽

Cohort Study ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Injury Risk ◽

Peak Torque ◽

Soccer Players ◽

Complex Data ◽

Isokinetic Test ◽

Clinical Records

Background/AimDifferent authors have tried to correlate the peak isokinetic torque values with the incidence of soccer match injuries. However, due to the wide variety of assessment testing protocols, such an inference becomes difficult. This study aimed to verify the capacity of an isokinetic test to establish injury risk reference values for hamstring strain injuries.MethodsA retrospective cohort study based on isokinetic data and clinical records from the last 10 years was conducted in 582 Brazilian elite-professional soccer players, who were subjected to the same isokinetic test protocol, machine, and tester. A Multivariate Logistic Regression Analysis for Complex Data Sampling was used to generate injury risk statistical indexes.ResultsMultivariate regression analysis of both legs provided important data to identify the cut-off values of Concentric Peak Torque (181.82 Newton/*metres), Concentric Work (236.23 watts) and Concentric Power (130.11 joules).ConclusionsThe injury risk indexes indicate that an increase of just one Newton unit in CPT (Concentric Peak Torque) and CJ (Concentric Power) above those cut-off values, can reduce the risk of future injuries by 2% and 2.7%, respectively.

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The relationship between obesity and amputation-free survival in patients with undergoing lower-limb revascularisation for chronic limb-threatening ischaemia: a retrospective cohort study

Annals of Vascular Surgery ◽

10.1016/j.avsg.2021.06.022 ◽

2021 ◽

Author(s):

Cezar Sabbagh ◽

Andrew Nickinson ◽

Sarah Cullen ◽

Bhavisha Patel ◽

Svetlana Dubkova ◽

...

Keyword(s):

Cohort Study ◽

Retrospective Cohort Study ◽

Lower Limb ◽

Retrospective Cohort ◽

Free Survival ◽

The Relationship

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Does choice of athletic footwear affect musculoskeletal injury risk in US Coast Guard recruits? A retrospective cohort study.

10.1101/2022.01.03.22268706 ◽

2022 ◽

Author(s):

John J Fraser ◽

Ryan Pommier ◽

Andrew J MacGregor ◽

Amy B Silder ◽

Todd C Sander

Keyword(s):

Cohort Study ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Injury Risk ◽

Demographic Data ◽

Military Training ◽

Coast Guard ◽

Overuse Injuries ◽

Common Mechanism ◽

Athletic Footwear

Context: Musculoskeletal injuries (MSKIs) are ubiquitous during initial entry military training, with overuse injuries in the lower extremities the most frequent. A common mechanism for overuse injuries is running, an activity that is an integral part of United States Coast Guard (USCG) training and a requirement for graduation. Objective: Assess the effects of athletic footwear choice on lower quarter MSKI risk in USCG recruits. Design: Descriptive Epidemiological Study Setting: USCG Training Center, Cape May, NJ Participants: A retrospective cohort study was performed in which 1229 recruits (1038 males, 191 females) were allowed to self-select athletic footwear during training. A group of 2876 recruits (2260 males, 616 females) who trained under a policy that required obligatory wear of prescribed athletic shoes served as a control. Main Outcome Measures: Demographic data and physical performance were derived from administrative records. Injury data were abstracted from a medical tracking database. Multivariable logistic regression was used to assess group, age, sex, height, body mass, and run times on MSKI outcomes. Results: Ankle-foot, leg, knee and lumbopelvic-hip complex diagnoses were ubiquitous in both groups (experimental: 20.37 to 29.34 per 1000 recruits; control: 18.08 to 25.59 per 1000 recruits). Group was not a significant factor for any of the injuries assessed. Sex was a significant factor in all injury types, with female recruits demonstrating ~2.00 greater odds of experiencing running-related injuries (RRIs), overuse injuries, or any MSKI in general. When considering ankle-foot or bone stress injuries, the risk in female recruits was 3.73 to 4.11 greater odds than their male counterparts. Run time was a significant predictor in RRI, all overuse injuries, and for any MSKI in general. Conclusion: While footwear choice did not influence MSKI risk in USCG recruits, female sex was a primary, nonmodifiable intrinsic risk factor.

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