scholarly journals The Use of Negative Acceleration as Accessory Force during Lifting

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Jordan Trafimow ◽  
Alexander S. Aruin
Keyword(s):  
Healthy Subjects ◽  
Standing Position ◽  
Back Injury ◽  
Low Back ◽  
Kinematic Data ◽  
Medical Expenses ◽  
Low Back Injury ◽  
Negative Acceleration

Objectives. Injury associated with lifting, especially low back injury, is a big problem in industry that accounts for loss of work and high medical expenses. Studies of biomechanics of lifting provide a basis for optimization of lifting. The aim of the study was to further investigate the role of the upward force due to negative acceleration during a lift. Methods. Nine healthy subjects lifted an empty box and a box with additional load of 10, 20, and 25 lb. Kinematic data were recorded during the lifts and accelerations were calculated, and angular positions of the trunk and knee were obtained during the lifting when negative accelerations were used. Results. Negative acceleration assisted the quadriceps when the thighs were at approximately 90° and the hips when the trunk was rotating toward standing position. Negative acceleration was present during lifts of different loads. Conclusion. The outcome of the study suggests that enhancing the use of negative acceleration could be a strategy to improve the quality of lifting and minimize a probability of low back injury.

scholarly journals The Role of Exercise and Posture in Preventing Low Back Injury

AAOHN Journal ◽  
1990 ◽  
Vol 38 (7) ◽  
pp. 318-322 ◽  
Author(s):  
Sally A. Leonard
Keyword(s):  
Back Injury ◽  
Low Back ◽  
Low Back Injury

scholarly journals Gut microbiota profiles and characterization of cultivable fungal isolates in IBS patients

2021 ◽  
Author(s):  
Piero Sciavilla ◽  
Francesco Strati ◽  
Monica Di Paola ◽  
Monica Modesto ◽  
Francesco Vitali ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Gut Microbiota ◽  
Healthy Subjects ◽  
Fungal Isolates ◽  
Key Points ◽  
Health Promoting ◽  
Irritable Bowel

Abstract Studies so far conducted on irritable bowel syndrome (IBS) have been focused mainly on the role of gut bacterial dysbiosis in modulating the intestinal permeability, inflammation, and motility, with consequences on the quality of life. Limited evidences showed a potential involvement of gut fungal communities. Here, the gut bacterial and fungal microbiota of a cohort of IBS patients have been characterized and compared with that of healthy subjects (HS). The IBS microbial community structure differed significantly compared to HS. In particular, we observed an enrichment of bacterial taxa involved in gut inflammation, such as Enterobacteriaceae, Streptococcus, Fusobacteria, Gemella, and Rothia, as well as depletion of health-promoting bacterial genera, such as Roseburia and Faecalibacterium. Gut microbial profiles in IBS patients differed also in accordance with constipation. Sequence analysis of the gut mycobiota showed enrichment of Saccharomycetes in IBS. Culturomics analysis of fungal isolates from feces showed enrichment of Candida spp. displaying from IBS a clonal expansion and a distinct genotypic profiles and different phenotypical features when compared to HS of Candida albicans isolates. Alongside the well-characterized gut bacterial dysbiosis in IBS, this study shed light on a yet poorly explored fungal component of the intestinal ecosystem, the gut mycobiota. Our results showed a differential fungal community in IBS compared to HS, suggesting potential for new insights on the involvement of the gut mycobiota in IBS. Key points • Comparison of gut microbiota and mycobiota between IBS and healthy subjects • Investigation of cultivable fungi in IBS and healthy subjects • Candida albicans isolates result more virulent in IBS subjects compared to healthy subjects

scholarly journals Isokinetic Trunk Strength in Acute Low Back Pain Patients Compared to Healthy Subjects: A Systematic Review

2021 ◽  
Vol 18 (5) ◽  
pp. 2576
Author(s):  
Waleska Reyes-Ferrada ◽  
Luis Chirosa-Rios ◽  
Angela Rodriguez-Perea ◽  
Daniel Jerez-Mayorga ◽  
Ignacio Chirosa-Rios
Keyword(s):  
Systematic Review ◽  
Low Back Pain ◽  
Back Pain ◽  
Reference Values ◽  
Healthy Subjects ◽  
Isokinetic Strength ◽  
Low Back ◽  
Acute Low Back Pain ◽  
Trunk Strength

Background: The purpose of this systematic review was to: (I) determine the quality of evidence from studies assessing trunk isokinetic strength in subjects with acute low back pain (ALBP) compared to healthy subjects and (II) establish reference values of isokinetic trunk strength in subjects with ALBP. Methodology: Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) statements were followed using keywords associated with trunk, strength and low back pain. Four databases were used: PubMed, Web of Science, Scopus and SPORTDiscus. Methodological quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS). Results: A total of 1604 articles were retrieved, four included in this review. All were evaluated as high risk of bias (Rob). Due to the high Rob and the diversity of protocols, instruments and variables used, it was not possible to determine reference values for subjects with ALBP, we can only establish a range of flexion peak torque (PT) between 175.1 and 89.7 Nm at 60°/s and between 185 and 81.5 Nm at 120°/s, and for extension PT between 240.0 and 91.5 Nm at 60°/s and between 217.5 and 69.2 Nm at 120°/s in subjects with ALBP. Conclusions: Due to the low quality of the evidence and the diversity of protocols used when measuring trunk isokinetic strength, it is necessary to carry out new high-quality research to establish reference values of trunk strength in subjects with ALBP.

scholarly journals Use of Back Belts to Prevent Low Back Injury

AAOHN Journal ◽  
1995 ◽  
Vol 43 (9) ◽  
pp. 489-493 ◽  
Author(s):  
Sally L. Lusk ◽  
Marion Gillen
Keyword(s):  
Back Injury ◽  
Low Back ◽  
Low Back Injury ◽  
Back Belts

scholarly journals An analysis of pre-season risk factors for low back injury in high-school baseball pitchers: a prospective study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kurumi Nakase ◽  
Hitoshi Shitara ◽  
Tsuyoshi Tajika ◽  
Takuro Kuboi ◽  
Tsuyoshi Ichinose ◽  
...  
Keyword(s):  
High School ◽  
Shoulder Function ◽  
Whole Body ◽  
Back Injury ◽  
Low Back ◽  
Shoulder Range Of Motion ◽  
Low Back Injury ◽  
Significant Independent Risk Factor ◽  
Elbow Injuries ◽  
Baseball Pitchers

AbstractPitching motion requires whole-body coordination; therefore, poor control of the lower extremities, pelvis and trunk may cause shoulder and elbow injuries. However, few studies have described the relationship between the shoulder joint function and low back injury in high-school baseball pitchers. A total of 128 healthy high school pitchers underwent pre-season medical checkups, where their shoulder range of motion and shoulder strength were measured. The participants completed a self-recorded daily questionnaire regarding the presence of low back pain. Pitchers were divided into injured and non-injured groups. Low back injury was observed in 13 participants (13.4%). In the injured group, horizontal adduction on the dominant shoulder was significantly less than in the non-injured group. A logistic regression analysis showed that horizontal adduction on the dominant side was a significant independent risk factor for low back injury during the season. It is important to recognize that restriction of the shoulder function not only causes shoulder and elbow injuries but can also risk low back injury.

What Do We Know About Interventions to Prevent Low Back Injury and Pain Among Nurses and Nursing Students? A Scoping Review

2021 ◽  
pp. 084456212110470
Author(s):  
Linda Duffett-Leger ◽  
Amy J. Beck ◽  
Anya Siddons ◽  
Katherine S. Bright ◽  
K. Alix Hayden
Keyword(s):  
Nursing Students ◽  
Scoping Review ◽  
Student Nurses ◽  
Back Injury ◽  
Low Back ◽  
Back Injuries ◽  
Low Back Injury ◽  
Rigorous Study ◽  
Study Designs ◽  
Nursing Aides

Study background Back injuries are common among nurses worldwide with lifetime prevalence of lower back pain ranging from 35% to 80%, making nursing a profession at great risk for back injuries. Purpose This systematic scoping review explored and mapped existing evidence regarding the prevention of low back injury and pain among nurses and nursing students. Methods Using a scoping review methodology, six databases were searched initially in September 2017 and updated June 2020. Studies investigating interventions designed to reduce back injuries and pain among regulated nurses and student nurses, published in peer-review journals and written in English, were eligible for inclusion in this review. Quantitative, qualitative, and mixed methods studies of regulated nurses, nursing students, and nursing aides were included. Two independent reviewers screened, critically analysed studies using a quality appraisal tool, extracted data, and performed quality appraisals. Results Two searches yielded 3,079 abstracts and after title, abstract and screening, our final synthesis was based on 48 research studies. Conclusions Forty years of research has demonstrated improvements in quality over time, the efficacy of interventions to prevent back injury and pain remains unclear, given the lack of high-quality studies. Further research, using multi-dimensional approaches and rigorous study designs, are needed.

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