Surgical interventions for anterior shoulder instability in rugby players: A systematic review

AIM: To systematically evaluate the evidence-based literature on surgical treatment interventions for elite rugby players with anterior shoulder instability. METHODS: We conducted a systematic review according to the PRISMA guidelines. A literature search was performed in PubM ed, EMBASE and Google Scholar using the following search terms: "rugby" and "shoulder" in combination with "instability" or "dislocation". All articles published from inception of the included data sources to January 1st 2014 that evaluated surgical treatment of elite rugby players with anterior shoulder instability were examined. RESULTS: Only five studies were found that met the eligibility criteria. A total of 379 shoulders in 376 elite rugby union and league players were included. All the studies were retrospective cohort or case series studies. The mean Coleman Methodological Score for the 5 studies was 47.4(poor). Owing to heterogeneity amongst the studies, quantitative synthesis was not possible, however a detailed qualitative synthesis is reported. The overall recurrence rate of instability after surgery was 8.7%, and the mean return to competitive play, where reported, was 13 mo.CONCLUSION: Arthroscopic stabilization has been performed successfully in acute anterior instability and there is a preference for open Latarjet-type procedures when instability is associated with osseous defects.

A Study of Sports Hospitality at the Rugby World Cup 2019 for a Tourism Experience Product: A Consideration from the Viewpoint of Eliminating Overtourism in Spectator Sports

In this research project,we focus on sports hospitality at the Rugby World Cup 2019 as a practical example of the qualitative pursuit of sports tourism in the Japanese tourism industry.STH Japan K.K.,Japan’s first company specializing in sports hospitality,hosted the first mega sports event held in Japan.A similar spectator service will next be implemented at the Tokyo Olympics and Paralympics.Sports hospitality is a new way to enjoy watching sports by adding a meal and entertainment before and after the match to the event ticket.Positioning and using sports hospitality as a tourism experience product,we can use qualitatively designed creative and effective methods that professional human resources could provide to tourists.This research project provides an overview of tourism experience products,looks at their economic effects at the Rugby World Cup 2019,and the sales results of the sports hospitality at the event.I conducted an observation survey at the Rugby World Cup 2019 Scotland vs.Samoa match held at Misaki Park Stadium(Kobe,Hyogo)on September 30,2019 focusing only on tourism products in that framework.I also conducted a qualitative survey on March 18,2020 in a semi-structured interview format with STH Japan K.K.senior advisors.The research results revealed the possibility of eliminating overtourism in spectator sports and the lack of sports hospitality spaces in Japan.Usually,when watching a sports match where many spectators gather,the uniform start and end times cause crowding and overtourism.The conventional challenge has been to create tourism products that reduce congestion and provide an enjoyable tourism experience.Sports hospitality is effective for relieving the stress caused by overtourism in spectator sports.In order to solve the shortage of sports hospitality spaces,one issue to consider is the deregulation by the government.

soccer=football=rugby

英国人早在19世纪就热衷于一种称为football的游戏。1863年，Football Association(简称FA)，即足球协会在英国成立。当时FA都将足球游戏命名为“association football”。从此“football”，一词家喻户晓。FA在英国Wembley举行了第一届Football Association Challenge Cup(简称FA Cup)。英国的老百姓不喜欢“association football”这个长长的名字，他们都叫该比赛的项目为soccer。从此。

Ultrasound and Doppler-Guided Surgery for the Treatment of Jumper’s Knee in Professional Rugby Players

Background: Jumper’s knee is relatively common among rugby players, and treatment of this condition is known to be difficult. Intratendinous revision surgery has shown poor results. New research on innervation patterns, and a new US+DP-guided treatment method targeting the regions with vessels and nerves outside the tendon has shown promising results in patients with Jumper’s knee. Material: This study includes 12 patellar tendons from 9 professional rugby players (mean age 26 years) with a long duration (range 12 - 72 months) of pain from the proximal patellar tendon. For 3 tendons there was previously intratendinous revision surgery with a poor result. Method: Treatment with Ultrasound (US) and Doppler (DP)-guided arthroscopic shaving + open scraping, followed by immediate weight bearing and gradually increased loading up to full loading after 6 - 8 weeks, was performed. Results: For 9 tendons there was a good clinical result, and all returned to full professional rugby within 4 - 6 months. The mean VISA score increased from 49 to 78 (p < 0.05). Follow-ups (range 10 - 30 months) show remaining good results. For 3 tendons, all have had previous intratendinous revision surgery, the clinical results were poor and they couldn’t return to rugby. Conclusions: The short-term results in this relatively small material indicate that US+DP-guided arthroscopic shaving + open scraping is a good treatment method for professional rugby players with chronic painful Jumper’s knee.

Perceptions and Attitudes Towards Shoulder Padding and Shoulder Injury in Rugby Union

Purpose To develop an understanding of the role of shoulder padding in rugby union by investigating player perceptions and attitudes towards shoulder padding and extending research into shoulder injuries in rugby.Methods An online survey was distributed to past and current rugby players over 13 years old in 2018.Questions related to the participants’demographic,attitudes to shoulder padding and shoulder injury history.Results Six hundred and sixteen rugby players responded to the survey;66.1%of respondents had worn shoulder padding at some point.The age group 24-29 years old(ΔR^(2)=0.03,B=−0.53,P=0.015)had an inverse association with padding effectiveness while playing experience groups 1-2 years(ΔR^(2)=0.03,B=0.8,P=0.032),3-5 years(ΔR^(2)=0.03,B=0.70,P=0.002)and 6-9 years(ΔR^(2)=0.03,B=0.41,P=0)had a positive association.There are 37.1%of respondents consider-ing shoulder padding to be effective at preventing cuts and abrasions with 21.9%finding it very effective;50.3%considered it to be effective or very effective(9.7%)at preventing contusion;45.5%wore padding for injury prevention,while 19.2%wore padding to protect from reoccurring injury.Sprain/ligament damage(57.5%)and bruising(55.5%)were the most com-monly reported injuries.Conclusions The primary reason for wearing shoulder padding was as a means of injury prevention.Research should focus on quantifying the injury preventive capabilities of shoulder padding.Bruising,cuts and abrasion injuries to the shoulder are prevalent presenting new findings that these injuries are underreported.

Rugby Sevens on the Map

Despite losses at the Asian Games,rugby variant set to rise in popularity in China The sport of rug by sevens aroused cheering and excitement among spectators during the Guangzhou Asian Games.

Match and training injury incidence in rugby league:A systematic review,pooled analysis,and update on published studies

In studies reporting rugby league injuries,match injuries varied depending upon participation level.To review and update pooled data estimates for rugby league injury epidemiology and add information for participation levels in match and training environments.A systematic review and pooled analysis for published studies reporting rugby league match and training injuries.Searches were performed in the PubMed,CINHAL,ScienceDirect,Scopus,SPORTDiscus,SpringerLink,and Wiley Online databases.Studies were considered if they reported on rugby league match or training injuries between Jan 1990 to June 2021.Two authors(DK,TC)extracted the study characteristics,numerical data and assessed the article quality,by adhering to the protocol for systematic review of observational studies(MOOSE)and the STrengthening and Reporting of OBservational studies in Epidemiology(STROBE)statement.The 46 studies included a combined exposure of 419,037 h and 18,783 injuries incorporating 158,003 match-hr and 15,706 match injuries(99.4[95%CI:97.9–101.0]per 1000 match-hr)and 264,033 training-hr and 3077 training injuries(11.8[95%CI:11.4–12.2]per 1000 training-hr).Of included studies,47.9%utilised a medical attention/treatment injury definition.There was a five-fold difference in injuries for the semi-professional participation level(431.6 per 1000 match-hr)compared with professional(RR:4.92;p<0.001)and elite(RR:3.77;p<0.001)participation levels.The hooker recorded the highest pooled injury incidence(93.1 per 1000 match-hr).Compared to the 2014 analysis there was a 10-fold increase for headneck region(RR:10.7;p<0.001)injury incidence,and more injuries for the ball carrier(RR:1.1;p?0.008)and tackler(RR:1.2;p?0.001).There was a three-fold decrease in injury incidence in the first half(RR:2.9;p<0.001)and a two-fold decrease in the second half(RR:2.3;p<0.001)of matches.While rugby league match and training injury incidence had decreased since 2014,the increase in head injuries,and greater injury rate at the semi-professional level,mean further injury prevention interventions are needed.

Effects of contact/collision sport history on gait in early-to mid-adulthood

Background:To determine the effect of contact/collision sport participation on measures of single-task(ST)and dual-task(DT)gait among early-to middle-aged adults.Methods:The study recruited 113 adults(34.88±11.80 years,(mean±SD);53.0%female)representing 4 groups.Groups included(a)former non-contact/collision athletes and non-athletes who are not physically active(n=28);(b)former non-contact/collision athletes who are physically active(n=29);(c)former contact/collision sport athletes who participated in high-risk sports and are physically active(n=29);and(d)former rugby players with prolonged repetitive head impact exposure history who are physically active(n=27).Gait parameters were collected using inertial measurement units during ST and DT gait.DT cost was calculated for all gait parameters(double support,gait speed,and stride length).Groups were compared first using one-way analysis of covariance.Then a multiple regression was performed for participants in the highrisk sport athletes and repetitive head impact exposure athletes groups only to predict gait outcomes from contact/collision sport career duration.Results:There were no significant differences between groups on any ST,DT,or DT cost outcomes(p>0.05).Contact/collision sport duration did not predict any ST,DT,or DT cost gait outcomes.Conclusion:Years and history of contact/collision sport participation does not appear to negatively affect or predict neurobehavioral function in early-to mid-adulthood among physically active individuals.

Do PON1-Q192R and PON1-L55M polymorphisms modify the effects of hypoxic training on paraoxonase and arylesterase activity?

Background:Low levels of antioxidant paraoxonase 1(PON 1)enzyme activity,PON1-Q192R polymorphism(a glutamine(Q)to arginine(R)substitution at position 192),PON1-L55M polymorphism(a leucine(L)to methionine(M)substitution at position 55),and oxidized low-density lipoprotein(oxLDL)are risk factors for coronary heart disease.Aerobic exercise improves PON1 activity,but the effects of hypoxic exercise are yet unclear.The aim of this study was to determine the effects of hypoxic underwater rugby training on PON1 activity and oxLDL levels and the role of the mentioned polymorphisms.Methods:Serum PON1 and arylesterase activities(ARE),PON1,PON3,and oxLDL protein levels(by using the enzyme-linked immunosorbent assays)were determined in an athletic group(42 trained male underwater rugby players;age=21.7±4.2 years,mean±SD)and a control group(43 sedentary men;age=23.9±3.2 years).The polymorphisms were determined from genomic DNA samples.Results:PON1 activity(25.1%,p=0.052),PON3(p<0.001),and oxLDL(p<0.001)of the athletic group,including most genotype groups,were higher than those of the control group.In comparison to the controls,PON1 activity levels(p=0.005)of the PON1-Q192R homozygote QQ genotype group and PON1 activity levels(30%,p=0.116)of the PON1-L55M homozygote LL genotype group were higher,whereas ARE activity values of athletic R allele carrier(Rc=QR+RR)(p=0.005)and LL group(p=0.002)were lower than the control genotype groups related to their polymorphisms.Conclusion:Hypoxic training can cause(1)significant oxidative stress,including oxLDL,and an antioxidant response(increase in PON1 activity and PON3),(2)differences in the activity of PON1 and ARE,which are modified by PON1-Q192R and PON1-L55M polymorphisms,respectively,and(3)improvements in PON1 activity of QQ and LL groups.However,hypoxic training can cause a disadvantage of LL and Rc groups for ARE.

The effects of artificial surface temperature on mechanical properties and player kinematics during landing and acceleration

Background: Artificial turf is considered a feasible global alternative to natural turf by many sports governing bodies. Consequently, its ability to provide a safe and consistent playing surface regardless of climate becomes essential. The aims of this study were to determine the effects of artificial surface temperature on:(1) mechanical properties of the turf and(2) the kinematics of a turf-sport related movement.Methods: Two identical artificial turf pitches were tested: one with a cold surface temperature(1.8°C–2.4°C) and one with a warm surface temperature(14.5°C–15.2°C). Mechanical testing was performed to measure the surface properties. Four amateur soccer players performed a hurdle jump to sprint acceleration movement, with data(contact time, step length and hip, knee and ankle kinematics) collected using CODASport(200 Hz).Results: The temperature difference had a significant influence on the mechanical properties of the artificial turf, including force absorption,energy restitution, rotational resistance, and the height where the head injury criterion was met. Both step length(p = 0.008) and contact time(p = 0.002) of the initial step after the landing were significantly longer on the warm surface. In addition, significant range of motion and joint angular velocity differences were found.Conclusion: These findings highlight different demands placed on players due to the surface temperature and suggest a need for coaches,practitioners, and sports governing bodies to be aware of these differences.

New AI-IP-EI Trilogy Opens Innovation to New Dimensions;Another Chip in “the Innovation Wall”, What About Emotional Intelligence (EI)?

The red thread of the AI-IP-EI Trilogy fate of this study, may have the appearance of a pot-pourri of intellectual and intelligence natures, as a matter of fact that it emanates from the genesis and practical synergism of the trilogy components. Concretely: The paper goes from: AI (Artificial Intelligence)—to the related IP (Intellectual Property) domain—to the relevance of EI (Emotional Intelligence);thus, forming the new AI-IP-EI Trilogy and its attributes and specific impacts to the new innovation process, and business model dimensions. These impacts are outlined and illustrated in part in essays of specific sections and all along. Several concrete study cases are used in the various dedicated sections;such as cases respective to the inventor status, and the EI factor, to the sport education innovative dimension, as well as to biases as inevitably promoting and revealing, to drastically enlarge open innovation supported by constructivism and creations of musical group as a model of open reflexive education. Overall resulting adapted business models appear to have a massive potential, and a multidimensional reach with a necessary attention to the IP policy on going definition. The durable green dimension is exemplified as well. The Ethics-plus, “@LEAST?”, said corpus is proposed. Could a human centric, AI-adapted-IP policy, internationally embraced, take part to some level of arbitrage, normative and enduring reliability in the field of interest? This seems to be “en route”. Shall the EI (Emotional Intelligence) factor be supervised? Likely so. Is traditional open innovation renewed to a more comprehensive, more inclusive dimension reminding best business practice and now “beyond”? Definitely, and will remain an opportunity, all along the 4IR quantum game changer to come. Neither seeking an in-depth expert analysis, nor a grand public over-simplified bavardage, of the trilogy, AI-IP-EI, four authors here propose an illustrated view of scientific, educational, visionary, demonstrative value to the subject matter. They are aged about 30-40-50-60, being IP & Innovation strategist, future IP lawyer, children-teacher and professional academy sport coach, illustrator and bio-advanced materials engineering “Fellow Scientist”. With experience of large and smaller organizations, being involved innovators, inventors and private artists as well, they are sharing their “non-jargonized down-to-earth”, forward looking views through a structured analysis of the trilogy using realistic examples and data from rather diverse specialized independent sources, biotechnology, nanomaterials, sport… New invention and inventorship is been “reconceptualized” at least from an “insighter or insider” viewpoint, and sport team approach more broadly revisited from its academy level to its commercial asset impact, via educational virtues and values. Music group constructivism enters the scene as well with its exemplary reflexivity and alterity valued for open innovation. Science is the prime lead. “Emotional intelligence, EI, is still an emerging area within AI” and beyond? A new open innovation scheme is taking place. This prompted our intention to further contribute to this matter. Is EI, the tree gently challenging the wind? Generated by AI and IP streams and scientific applications therewith? Naturally. Conclusions are encouraging the follow-up of promising orientations underlined by the AI-IP-EI Trilogy, favoring human centric feature adoptions.