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  • Oslo Sports Trauma Research Center - 082 - Prevention of knee and ankle injuries among young players in Norwegian team handball
    the season The other half of the participants 59 clubs 879 players were asked to do their training as usual during the season Ten research physiotherapists who were blinded to group allocation recorded injuries in both groups in a web based database in which all the data were coded anonymously Information about personal data the injury situations and mechanisms was requested in each case In addition a compliance registering was done to evaluate the clubs follow up of the intervention Results This randomized controlled trial published in the British Medical Journal shows that a structured programme of warm up exercises can prevent knee and ankle injuries in young people playing sports During the eight month season 262 14 of the 1837 players who were included in the study contracted a total of 298 injuries Of these 241 81 were acute injuries and 57 19 were overuse injuries The most common body part injured was the ankle 26 followed by the knee 23 and finger 11 A total of 129 acute knee or ankle injuries occurred 81 injuries in the control group 0 9 injuries per 1000 player hours 0 3 in training v 5 3 during matches and 48 injuries in the intervention group 0 5 injuries per 1000 player hours 0 2 in training v 2 5 during matches Fewer knee or ankle injured players were in the intervention group than in the control group 46 4 8 v 76 8 6 relative risk intervention group v control group 0 53 95 confidence interval 0 35 to 0 81 p 0 004 The same figure for all injuries was 95 9 9 v 167 19 RR 0 49 95 CI 0 36 0 68 p 0 0001 A significant reduction in 46 80 for moderate and major injuries was

    Original URL path: http://www.klokavskade.no/en/Project/082---Prevention-of-knee-and-ankle-injuries-among-young-players-in-Norwegian-team-handball-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 112 - The Amsterdam Balance Board study: The effect and cost-effectiveness of a balance training programme on the risk of acute lateral ankle injury - a randomized controlled trial
    braces and balance board training to improve propriocepcis and strength of the ankle joint muscles Review of the literature shows the effect of the first two measures in restricting ankle range of motion and in reducing the risk to sustain ankle injury However the application of these measures is characterised by unwanted side effects loosening of tape brace during play uncomfortable in use irritation of the skin and high expense The 3rd measure overcomes the drawbacks of the first two and is claimed to be equally effective This supposedly effective means of intervention has been studied in soccer Tropp et al 1985 and volleyball Bahr et al 1997 However from both these studies no definite conclusions on the preventive effect of balance board training can be drawn This study concerns such a randomised controlled trial on the effect of a preventive proprioceptive and balance board training program in volleyball players playing in the second and third national volleyball league in the Netherlands with the following questions What is the effect of a preventive propriocepcis and balance board training program on the risk to sustain acute new and recurrent lateral ankle injury in volleyball players of the second and third Dutch national volleyball league What is the cost effectiveness of such a program What factors determine compliance with the program as part of the regular training routine This randomized controlled trial will be carried out during the entire 2001 2002 Dutch volleyball season The players in these leagues are competitive and homogenous in terms of age and level of skill as well as training and game exposure 110 male and female teams are involved with approximately 10 players per team The intervention involves pre season group instruction given to all intervention team trainers and players on the aetiology and prevention of

    Original URL path: http://www.klokavskade.no/en/Project/112---The-Amsterdam-Balance-Board-study-The-effect-and-cost-effectiveness-of-a-balance-training-programme-on-the-risk-of-acute-lateral-ankle-injury---a-randomized-controlled-trial-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 095 - Validation of a model-based image-matching technique for 3D motion reconstruction from uncalibrated 2D videosequences
    Different motions including both high and low impact motions of different complexity will be subjected to motion analyses by the means of An infrared state of the art optical 3D tracking system ProReflex Qualisys Inc 2 Amti Force platforms 3 ordinary video cameras 3D kinetics and kinematics from the recorded motions will be calculated from the ProReflex system and force platforms which will yield the gold standard for this experiment The videotapes are digitized lens corrected and deinterlaced to achieve an effective frame rate of 50Hz Motion estimates and kinetic variables will also be derived from the videotapes using a model matching method based on a commercially available 3D animated human model Poser CuriousLabs Inc In the Poser interface one video sequence or two synchronized sequences is imported into the background for the animation model The model is then manually fitted to the background pictures We will evaluate the matching performed by using one two or three camera views from different perspectives This study introduces a novel method for analysing uncalibrated video recordings from the field for example recordings of injury situations This method is potentially of great benefit in the work of sport trauma research and may eventually help us to design methods for the prevention of injuries Results Root Mean Square RMS hip and knee flexion extension angle differences were less than 12 for all the matchings Estimates for ad abduction 15 and internal external rotation 16 were less precise RMS velocity differences up to 0 62 m s were found for the single camera matchings but for the triple camera matching the RMS differences were less than 0 13 m s for each direction In conclusion a new model based image matching technique has been developed that can be used to estimate temporal joint angle histories velocities

    Original URL path: http://www.klokavskade.no/en/Project/Laboratorievalidering-av-en-modellbasert-bilde-matchingsteknikk-for-rekonstruksjon-av-3D-bevegelse-fra-ukalibrerte-2D-videosekvenser/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 079 - Injuries among competitive snowboarders at the national elite level
    amount of snowboarders estimated from sales figures is 200 000 Roughly 4000 snowboarders are members of the Norwegian Snowboard Federation NSBF and 279 riders have license to take part into the closed top level named Norwegian Cup and National Championships The official disciplines are Halfpipe Snowboardcross Alpine disciplines and Big Jump The intention of the project is to describe the injury pattern of the National top level competition riders Then suggestions on how to increase security and how to reduce number of injuries will be considered A registration carried out the season 2000 2001 at 8 competitions where 765 riders took part showed that a total of 11 injuries occurred 10 had to be examined and treated at a hospital Material and method Registration at the official NSBF Norwegian Cup competitions and National Championships season 2001 2002 have ambitions to include the disciplines Halfpipe Snowboardcross Alpine disciplines and Big Jump The number of injuries will be related to number of runs in order to calculate the risk of getting an injury The registration will be carried out by the medical personnel present primary the physician Ski patrol technical personnel and other medical personnel present will assist and carry out the

    Original URL path: http://www.klokavskade.no/en/Project/079---Injuries-among-competitive-snowboarders-at-the-national-elite-level-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 083 - Injuries in Norwegian female team handball
    incidence and types of injuries in senior team handball In relation to a study of the incidence and prevention of ACL injuries in norwegian team handball we want to perform a general injury registration The purpose of the study is to find the injury incidence in norwegian female team handball in the elite 1 and second division 1000 players The teams physiotherapists will follow the teams and record injuries from 1 12 00 and rest of the season Both acute and overuse injuries will be recorded An injury will be recorded if the players get injured during an organized match or training and in cases where the injury involves absence from practice or match The purpose of the study is to get an impression of the injuries in team handball so we easier can sort out the right prevention strategies Results A total number of 173 injuries on 567 players were found The incidence was 11 9 injuries per 1000 playing hours and 0 16 injuries per 1000 training hours In the elite division we found 15 2 injuries per 1000 playing hours and 0 14 per 1000 training hours Eighty three of the injuries were acute injuries and 17

    Original URL path: http://www.klokavskade.no/en/Project/083---Injuries-in-Norwegian-female-team-handball-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 049 - Prevention of injuries in female Norwegian elite soccer
    10 teams 200 players all of the teams playing in the elite division of the Norwegian Football Federation league system will be ask to take part in the study Before the soccer season 2001 a questionnaire will be given to each player to get information about personal data history of soccer previously injuries illness and menstrual status Five teams with about 100 players will be randomized to the intervention group and the other five teams to the control group The intervention will be a warm up program 15 20 min with exercise to get better running and landing technique balance flexibility and strength The program will be done three times weekly during the first part of the season 10 weeks and then 2 3 times weekly during the rest of the season In addition all the players in the intervention group with a previously injury for the last six months will get a rehabilitation program for a period of 10 weeks The physiotherapists in each team will register all the injuries based on a standardized questionnaire in both the intervention and the control group during the season Among the information request in each case we will find personal data playing

    Original URL path: http://www.klokavskade.no/en/Project/049---Prevention-of-injuries-in-female-Norwegian-elite-soccer-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 088 - Injuries in young players in Norwegian team handball
    a high incidence of injuries in young players in team handball Studies in Danish team handball have show that young female players have the highest risk of injuries with about 40 injuries per 1000 hours of game where 17 was injuries of the knee and 27 ankle However data of injuries in young players in Norwegian team handball are currently not available The purpose of this study is to examine the incidence in young players in Norwegian team handball and obtain baseline data for a prevention study Players from 40 teams 30 female teams 360 players 10 male teams 120 players at age 17 years in Eastern Norway will be asked to take part in the study During the season 2001 02 there will be done a registration of all injuries An injury will be registered if it occur during organized handball training or games The coaches report the injuries anonymously using standardized questionnaire each months and practice hours will also be collected In addition it will be done a injury rapport from the match reports from all the teams at age 17 years n 120 in Eastern Norway Data from this study will examine the incidence and mechanisms of

    Original URL path: http://www.klokavskade.no/en/Project/088---Injuries-in-young-players-in-Norwegian-team-handball-/ (2015-09-15)
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  • Oslo Sports Trauma Research Center - 114 - Risk factors for injury in Norwegian skiing resorts
    two years was 1 3 injuries per 1000 skiers days Ekeland Rødven 2001 Of these 66 required physician or hospital treatment The incidence of head injuries is high among alpine skiers and in particular snowboarders Fukuda and co workers 2001 found that the incidence of head injuries was higher than the incidence for other injuries and that snowboarders suffered from head injuries 6 1 times more frequently than did skiers They also found that the incidence increases year by year in this group The use of a protective helmet in the alpine disciplines is assumed to reduce the risk of serious head injuries but this effect is not satisfactorily documented Larger multi center studies have not been conducted in Norway to document the incidence and injury types during the last decade We therefore aim to describe the injury panorama but also to conduct a case control study to explore the effect of potential risk factors for injury such as age gender equipment type skill level experience In particular we want to examine the effects of helmet use on the rate of head injury Methods Injuries were recorded by the ski patrols of nine major Norwegian ski resorts during the winter

    Original URL path: http://www.klokavskade.no/en/Project/114---Risk-factors-for-injury-in-Norwegian-skiing-resorts--/ (2015-09-15)
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