An ergonomic assessment tool for evaluating the effect of back exoskeletons on injury risk

2022 ◽  
Vol 99 ◽  
pp. 103619
Author(s):  
Karl E. Zelik ◽  
Cameron A. Nurse ◽  
Mark C. Schall ◽  
Richard F. Sesek ◽  
Matthew C. Marino ◽  
...  
Keyword(s):  
2021 ◽  
Author(s):  
Rhys Hughes ◽  
Matt Cross ◽  
Keith Stokes

ABSTRACTObjectivesLower limb posterior chain injury (PCI) is common amongst athletic populations, with multi-factorial risk factors including age, previous injury, strength measurements, range of motion and training load. Biomechanics are commonly considered in the prevention and rehabilitation of PCI by performance staff. However, there is no documented testing method to assess for associations between biomechanics and PCI. The aim of this study was to investigate whether there is an association between an easily applicable, novel biomechanical assessment tool and PCI.MethodsFifty male elite-level rugby union athletes (age 22.83±5.08) participating in the highest tier of England were tested at the start of the 2019 pre-season period and PCIs (N=48) were recorded over the 2019/20 playing season. Participants’ biomechanics were analysed using two-dimensional video analysis against an Injury Risk Score (IRS) system in the performance of the combined movement – prone hip extension and knee flexion. Participants’ biomechanics in carrying out this movement were scored against the 10-point IRS, where the more compensatory movement recorded sees an increase in an individual’s IRS. Participants’ IRS were then compared against the number of PCI sustained and Spearman’s correlation coefficient was utilised for analysis.ResultsThere is a good significant association between IRS and PCI (R=0.573, p<0.001). Linear Regression demonstrated that an increase of 1 in IRS was associated with a 35% increase in PCI incidence (R2=0.346).ConclusionA good significance between the IRS and PCI provides preliminary support for its use as an injury risk assessment tool.


2021 ◽  
Vol 7 (4) ◽  
pp. e001062
Author(s):  
Rhys Hughes ◽  
Matt Cross ◽  
Keith Stokes ◽  
Daniel Tobin ◽  
Eoin Power ◽  
...  

ObjectivesLower limb posterior chain injury (PCI) is common among athletic populations, with multifactorial risk factors including age, previous injury, strength measurements, range of motion and training load. Biomechanics are commonly considered in the prevention and rehabilitation of PCI by performance staff. However, there is no documented testing method to assess for associations between biomechanics and PCI. The aim of this study was to investigate whether there is an association between an easily applicable, novel biomechanical assessment tool and PCI.MethodsFifty male elite-level rugby union athletes (age 22.83±5.08) participating in the highest tier of England were tested at the start of the 2019 preseason period and PCIs (N=48) were recorded over the 2019/2020 playing season. Participants’ biomechanics were analysed using two-dimensional video analysis against an injury risk score (IRS) system in the performance of the combined movement—prone hip extension and knee flexion. Participants’ biomechanics in carrying out this movement were scored against the 10-point IRS, where the more compensatory movement recorded sees an increase in an individual’s IRS. Participants’ IRS was then compared against the number of PCIs sustained and Spearman’s correlation coefficient was used for statistical analysis.ResultsThere is a significant association between IRS and PCI (R=0.542, p<0.001). Linear regression demonstrated that an increase in 1 in IRS was associated with a 35% increase in PCI incidence (R²=0.346).ConclusionA significance between the IRS and PCI provides preliminary support for its use as an injury risk assessment tool.


2021 ◽  
Vol 30 (11) ◽  
pp. 945-953
Author(s):  
Sanna Stoltenberg ◽  
Jaana Kotila ◽  
Anniina Heikkilä ◽  
Tarja Kvist ◽  
Kristiina Junttila

Introduction: Hospital-acquired pressure injuries are one of the most important indicators of quality patient care. It is important to identify high-risk patients to guide the implementation of appropriate prevention strategies. This can be done by using an assessment tool that covers the main risk factors for pressure injuries. Aim: The purpose of the study was to describe the incidence of pressure injuries and the associated risk factors among patients assessed with the Prevent Pressure Injury (PPI) risk assessment tool developed by the Helsinki University Hospital. Method: The study was conducted by selecting six wards from medical, surgical and neurological units. The target group were the patients being treated in the study units who gave their informed consent. The research data were retrieved from electronic patient records. Results: From the target group, 332 patients were eligible to participate in the study. The pressure injury risk was found to increase with longer hospital stays and older age. Surgical patients had an increased risk of pressure injuries compared to other specialty fields. A primary diagnosis of musculoskeletal or connective tissue disease, and secondary diagnoses of hypertension and cerebral haemorrhage, were linked with an increased pressure injury risk. A total of nine pressure injuries occurred in nine patients, with an incidence of 2.5% (stages II−IV). Conclusion: The observation and recording of pressure injuries in specialised medical care remain insufficient. Longer hospital stays, older age and surgery increase pressure injury risk. Also, patients' primary and secondary diagnoses may increase the pressure injury risk. Declaration of interest: The authors have no conflicts of interest to declare.


PEDIATRICS ◽  
2016 ◽  
Vol 137 (Supplement 3) ◽  
pp. 298A-298A
Author(s):  
Fahd A Ahmad ◽  
Lorin R Browne ◽  
Hamilton P. Schwartz ◽  
Sherry Lassa-Claxton ◽  
Michael Wallendorf ◽  
...  

2021 ◽  
pp. 036354652199808
Author(s):  
Jason M. Avedesian ◽  
Warren Forbes ◽  
Tracey Covassin ◽  
Janet S. Dufek

Background: While a large number of studies have investigated the anatomic, hormonal, and biomechanical risk factors related to musculoskeletal (MSK) injury risk, there is growing evidence to suggest that cognition is an important injury contributor in the athletic population. A systematic review of the available evidence regarding the influence of cognitive performance on MSK injury risk has yet to be published in the sports medicine literature. Purpose/Hypothesis: The purpose was to determine the effects of cognition on (1) MSK biomechanics during sports-specific tasks and (2) MSK injury occurrence in the athletic population. It was hypothesized that athletes with lower cognitive performance would demonstrate biomechanical patterns suggestive of MSK injury risk and that injured athletes would perform worse on baseline measures of cognition as compared with their noninjured counterparts. Study Design: Systematic review. Methods: PubMed and SPORTDiscus were searched from January 2000 to January 2020. Manual searches were performed on the reference lists of the included studies. A search of the literature was performed for studies published in English that reported MSK biomechanics as a function of cognitive performance and MSK injury occurrence after baseline measures of cognition. Two independent reviewers extracted pertinent study data in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2009 guidelines and assessed study quality using the Quality Assessment Tool for Observational Cohort and Cross-sectional Studies from the National Institutes of Health. A meta-analysis was not performed, owing to the heterogeneous nature of the study designs. Results: Ten studies met inclusion criteria: 4 cognition–MSK biomechanics studies and 6 cognition–MSK injury studies. All 4 cognition–MSK biomechanics studies demonstrated that worse performance on measures of cognition was associated with lower extremity MSK biomechanical patterns suggestive of greater risk for MSK injury. The majority of the cognition–MSK injury studies demonstrated that injured athletes significantly differed on baseline cognition measures versus matched controls or that cognitive performance was a significant predictor for subsequent MSK injury. Conclusion: Although the literature exploring cognitive contributions to MSK injury risk is still in its infancy, it is suggested that sports medicine personnel conduct baseline assessments of cognition—in particular, reaction time and working memory—to identify which athletes may be at elevated risk for future MSK injury.


2018 ◽  
Vol 6 (1) ◽  
pp. 232596711774859 ◽  
Author(s):  
Kaila A. Holtz ◽  
Russell J. O’Connor

Background: Softball is a popular sport with a high incidence of upper extremity injuries. The Kerlan-Jobe Orthopaedic Clinic (KJOC) questionnaire is a validated performance and functional assessment tool used in overhead athletes. Upper extremity pain patterns and baseline KJOC scores have not been reported for active female youth softball pitchers. Purpose/Hypothesis: The purpose of this study was to establish the prevalence of upper extremity pain and its effect in female youth softball pitchers over a competitive season. We hypothesized that participants who missed time due to injury in the past year would have lower KJOC scores. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Fifty-three female softball pitchers aged 12 to 18 years were recruited from softball clinics in Vancouver, British Columbia, Canada. All participants self-identified as a pitcher on a competitive travel team. Participants were administered the KJOC questionnaire before and during the playing season. Missed time due to injury in the past year, current pain patterns, and KJOC scores were primary outcomes. Results: The mean (±SD) preseason KJOC score was 87.2 ± 10.6. In the preseason, 22.6% of pitchers reported playing with arm trouble, and 32.1% missed time due to injury in the past year. The mean KJOC score for pitchers reporting a previous injury (n = 17) was significantly lower compared with those without an injury (n = 36) (79.5 ± 13.8 vs 90.9 ± 6.2, respectively; P = .02). The posterior shoulder was the most commonly reported pain location. For the cohort completing the questionnaire both before and during the playing season (n = 35), mean KJOC scores did not change significantly over the playing season ( P = .64). Lower preseason KJOC scores were significantly related to the in-season injury risk ( P = .016). Pitchers with a preseason score of less than 90 had a 3.5 (95% CI, 1.1-11.2) times greater risk of reporting an in-season injury. Conclusion: Female youth softball pitchers have a high baseline functional status. However, 1 in 3 pitchers reported missed time due to injury in the previous year, and shoulder pain was more prevalent than elbow pain. The KJOC questionnaire can be used by coaches, researchers, and clinicians to identify youth softball pitchers at risk for injuries who may benefit from interventions.


2000 ◽  
Vol 44 (30) ◽  
pp. 5-541-5-544 ◽  
Author(s):  
Rolf H. Westgaard

Injury models for musculoskeletal disorders are considered. It is suggested that several injury mechanisms may coexist in the same body region. This has implications for data reduction procedures used in risk evaluation by surface EMG (SEMG). Biomechanical exposure as an injury risk may conceptually be characterized by the three exposure dimensions: amplitude, duration and repetitiveness. The time dimension has become increasingly important since many work tasks are performed at low exposure amplitude. For practical purposes, static activity levels higher than 2% EMGmax appear to signify increased risk of musculoskeletal disorders. However, a lower activity level does not guarantee good health, as risk factors apparently unrelated to muscle activity also exist. Mental stress may be one such risk factor.


2019 ◽  
Vol 7 (3_suppl) ◽  
pp. 2325967119S0009
Author(s):  
Ryan S. Wexler ◽  
Sean Higinbotham ◽  
Danny Blake ◽  
Carlie Harrison ◽  
Justin Hollenbeck ◽  
...  

BACKGROUND Several biomechanical deficits have been shown to increase non-contact knee injury risk of the anterior cruciate ligament (ACL). The Landing Error Scoring System (LESS) is a clinical assessment tool that has been successfully used to predict the individuals that are at a high risk for injury and evaluate changes in landing technique after participation in a neuromuscular preventive training program. The LESS-RT is a shortened version of the LESS and is a method to score landing technique without the use of video. The current study proposes a new tool for the evaluation of landing technique and ACL injury risk that blends the LESS and LESS-RT protocols but emphasizes the movement features that contribute to high knee valgus moments including movement asymmetry. The LESS-RMC (Rocky Mountain Consortium) consists of evaluating 11 comprehensive landing errors that are related to ACL injury risk. Consolidating questions pertaining to the opposite ends of joint motion such as “toe in” and “toe out” into “maximum foot rotation position” and adding a global asymmetry score were performed to reduce the time demands for evaluation yet capture the salient factors of the LESS; whereas the penalty for knee valgus severity was pulled from the LESS-RT but implemented for both knees in the new LESS-RMC to ultimately stratify knee injury risk during the jump landing task. The purpose of this study was to determine the reliability of the new LESS-RMC assessment tool. METHODS Thirty-seven, elite female soccer athletes (13.2 +/- 0.4 y) performed three drop-jumps from a height of 30 cm. Front and side views of the landing were recorded with digital video cameras. Movement quality was rated by 4 researchers evaluating 17 components of the landing with the LESS and a modified, 11 component version of the LESS (LESS-RMC). The 4 raters were novel to the evaluation of both scoring systems. Each rater was trained how to score each test and was instructed to evaluate the landing trials from the first 10 participants. After a group video review and discussion, the raters repeated the scoring procedures for the same 10 participants 48 hours after the original review. After another 48 hours, the raters evaluated the landing trials for all 37 participants (111 trials). Inter-rater reliability of the LESS and LESS-RMC were determined using the ICC (3,1) equations and the output from a two-way ANOVA (SPSS, version 25). RESULTS The mean LESS score was 6.45 +/- 0.55 (rater 1, 6.42; rater 2, 7.15; rater 3, 5.79; rater 4, 6.45). The ICC agreement between raters of scoring the LESS was .389 whereas the ICC agreement for the mean of the four raters was .718. The ICC for scoring consistency was .382 and Cronbach’s a was .735. The mean LESS-RMC score was 6.19 +/- 0.74 (rater 1, 5.65; rater 2, 6.99; rater 3, 5.48; rater 4, 6.64). The ICC agreement of scoring the LESS-RMC was .585 whereas the ICC agreement for the mean of the four raters was .849. The ICC for scoring consistency was .574 and Cronbach’s a was .884. CONCLUSION On average, the raters scored the LESS and the LESS-RMC with moderate reliability across the group of athletes. The LESS-RMC was scored with greater reliability than the LESS for this group of relatively novice raters. This is likely due to the simplification of the overall protocol in terms of quantity of questions, the ability of a novel rater to understand scenarios which elicit specific scores and the clear separation of body segments (e.g. hip and trunk flexion). In conjunction with this, it was reported by the raters that LESS-RMC was less redundant and more effective at assessing crucial aspects of a jump landing pattern. Overall, LESS RMC was objectively and subjectively more reliable and easier to use than the LESS for the four raters involved in this study. It is concluded that the LESS-RMC is a quick, easy and reliable clinical assessment tool that may be used to stratify individuals who may be at risk for ACL injury.


2019 ◽  
Vol 8 (1) ◽  
pp. e000464
Author(s):  
Yasser K Al-Otaibi ◽  
Noura Al-Nowaiser ◽  
Arshur Rahman

Hospital-acquired pressure injury is a common preventable condition. Our hospital is a 144-bed governmental hospital in the Kingdom of Saudi Arabia that was found to have a 7.5% prevalence of hospital-acquired pressure injury in 2016. The aim of the improvement project was to reduce the prevalence of pressure injuries in our hospital from 7.5% to below 4% by the end of 2017. Our strategy for improvement was based on the Institute for Healthcare Improvement Model for Improvement. The change strategy was based on implementing an evidence-based risk assessment tool and a bundled evidence-based pressure injury prevention (PIP) intervention termed PIP bundle. After implementing the change package, we observed a reduction in the prevalence of pressure injuries by 84% (RR 0.16;95% CI 0.07 to 0.3; p value <0.0001) over a period of 12 weeks, in addition to an improvement in the compliance of pressure injury risk assessment and PIP interventions. The use of an evidenced-based bundled approach to prevent hospital-acquired pressure injuries has resulted in a significant reduction in the rate of pressure injuries. Improvement results were sustainable. In addition, our outcome measure exhibited minimal variability.


Sign in / Sign up

Export Citation Format

Share Document