| 1. |
- Eckerman, Mattias, et al.
(författare)
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The Relationship Between Personality Traits and Muscle Injuries in Swedish Elite Male Football Players
- 2020
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Ingår i: Journal of sport rehabilitation. - : Human Kinetics. - 1056-6716 .- 1543-3072. ; 29:6, s. 783-788
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Tidskriftsartikel (refereegranskat)abstract
- Context:The physical and mental demands of an elite football player are complex, which may explain why injuries are commonin football. At elite level, muscle injuries of the lower-extremity are the most common among male football players, and theresearch hitherto is limited. Objective: To investigate whether personality traits affect the incidence of muscle injuries amongmale football players from the first league in Sweden. Design: Prospective cohort study. Participants: A male football team fromthe first league in Sweden was prospectively followed, in terms of muscle injuries of the lower-extremity during 8 seasons,between 2007 and 2015. Intervention: All muscle injuries included in this study were evaluated and diagnosed withultrasonography. Players from the team filled out the Swedish Universities Scales of Personality questionnaire. SwedishUniversities Scales of Personality questionnaire consists of 91 items and is divided into 13 categories. Main Outcome Measures:The raw values of each scale were linearly transformed to T scores, having a mean (SD) of 50 (10). All variables weresummarized with standard descriptive statistics, such as frequency, mean, and SD. As data were of interval scale and no variabledistribution was severely skewed, differences between noninjured players, rarely injured players, and frequently injured playerswere analyzed with 1-way analysis of variance with post hoc tests by Tukey honestly significant difference test. Results:No significant difference in personality traits were observed between noninjured players, rarely injured players, and frequentlyinjured players regarding number of muscle injuries (P > .05). However, a trend (P = .07) was seen, where frequently injuredplayers scored higher on stress susceptibility than rarely injured players. Conclusion: A player’s stress susceptibility should betaken into consideration by the player, coaches, and medical staff when assessing the risk of a muscle injury. Also, preventivemeasures available for these players may need to be considered.
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| 2. |
- Jansson, Peter, 1971-, et al.
(författare)
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Data from calorimetric decay heat measurements of five used PWR 17x17 nuclear fuel assemblies
- 2020
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Ingår i: Data in Brief. - : Elsevier BV. - 2352-3409. ; 28
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Tidskriftsartikel (refereegranskat)abstract
- Raw data from calorimetric measurements of five nuclear fuel assemblies of the PWR 17x17 type are provided. Measurements of the temperature both inside a calorimeter, in which the fuel assembly was placed, as well as outside, were performed as a function of time while water circulating inside the calorimeter heats up from radiation emitted in the radioactive decay of material in the fuel assembly. The data contain also measurements of dose rate in the water outside the calorimeter. Data from 38 measurements using an electrically heated model of a fuel assembly are also provided to be used for, e.g.¸ calibration.The data can be used for validation of computer codes used for modelling of nuclear systems used for, e.g. nuclear reactors, storage and transport of nuclear fuel or systems for geological disposal.
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| 3. |
- Lundgårdh, Filip, et al.
(författare)
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Epidemiology of hip- and groin injuries in Swedish male first football league
- 2020
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer. - 0942-2056 .- 1433-7347. ; 28:4, s. 1325-1332
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Tidskriftsartikel (refereegranskat)abstract
- Purpose This study aimed to investigate the incidence, pattern and burden of hip/groin injuries in Swedish professional male football players over five consecutive seasons.Methods Injury history from 16 football teams in the Swedish male first football league was evaluated during five consecutive seasons. The team’s medical staff recorded team exposure and time-loss injuries prospectively between 2012 and 2016.Results In total, 467 time-loss injuries located in the hip/groin area were recorded among 1,687 professional male football players, with an overall incidence and burden of 0.82/1,000 h and 15.6/1,000 h, respectively. There appeared to be an increased risk of hip/groin injuries during the last two seasons (2015-2016); however, the difference was not statistically significant (n.s). Recurrent injury rate was relatively low (14%), and overuse injuries accounted for the majority of injuries and absence days. Muscle injuries were the main injury type, while kicking and sprinting/running were the primary causes of injury. Goalkeepers had the lowest percentage of injuries and absence days.Conclusion Hip/groin injuries are a substantial problem in football, but does not seem to be an increasing phenomenon in the Swedish male first football league. Index and overuse injuries accounted for the majority of injuries and absence days. Thus, the focus should be on preventing hip/groin injuries to lower the injury rate. These new findings should be taken into consideration when designing and implementing preventive training interventions.
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| 4. |
- Svensson, Kjell, et al.
(författare)
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Muscle injuries of the dominant or non-dominant leg in male football players at elite level
- 2018
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer. - 0942-2056 .- 1433-7347. ; 26:3, s. 933-937
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: The aim was to study possible differences of muscle injuries regarding type, localization and the extent of injury between the dominant and non-dominant leg in elite male football players. Another aim was to study the injury incidence of muscle injuries of the lower extremity during match and training.METHODS: Data were consecutively collected between 2007 and 2013 in a prospective cohort study based on 54 football players from one team of the Swedish first league. The injury incidence was calculated for both match and training, injuries to the hip adductors, quadriceps, hamstrings and triceps surae were diagnosed and evaluated with ultrasonography, and their length, depth and width were measured to determine the extent of structural muscle injuries.RESULTS: Fifty-four players suffered totally 105 of the studied muscle injuries. Out of these 105 injuries, the dominant leg was affected in 53 % (n = 56) of the cases. A significantly greater extent of the injury was found in the dominant leg when compared with the non-dominant leg with regard to structural injuries of the hamstrings. No other significant differences were found.CONCLUSIONS: Structural hamstring muscle injuries were found to be of greater extent in the dominant leg when compared with the non-dominant leg. This new finding should be taken into consideration when allowing the football player to return to play after leg muscle injuries.LEVEL OF EVIDENCE: IV.
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| 5. |
- Svensson, Kjell, et al.
(författare)
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Physical performance tests : relationship of risk factors for muscle injuries in elite level male football players
- 2018
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Ingår i: Journal of Exercise Rehabilitation. - : Korean Society of Exercise Rehabilitation. - 2288-176X .- 2288-1778. ; 14:2, s. 282-288
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of the present study was to investigate whether there is a relationship between the outcome of preseason physical performance tests and the risk of sustaining lower extremity muscle injuries within the same season, in male football players at elite level. This is a cohort study of a male football team (63 players) from the first league in Swe-den. The football players are prospectively followed, in terms of muscle injuries of the lower extremity during five seasons between 2010 and 2014. All muscle injuries were evaluated and diagnosed with ultraso-nography. The following physical performance tests were included: squats, chin-ups, YoYo intermittent recovery level 2, counter movement jump, squat jump, standing long jump, sprint, one leg squat test, and a functional movement screen. A total of 86 muscle injuries occurred during the study period. No significant correlation was found between the results of the physical performance tests and muscle injuries of the lower extremity. None of the evaluated tests predicted the risk of sus-taining muscle injuries of the lower extremity. We conclude that muscle injury risk factors are more complex than solely related to the results of the preseason physical performance tests.
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| 6. |
- Svensson, Kjell, et al.
(författare)
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Muscle injuries of the lower extremity : a comparison between young and old male elite soccer players
- 2016
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer Science and Business Media LLC. - 0942-2056 .- 1433-7347. ; 24:7, s. 2293-2299
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to make a comparison between players in two age groups in an elite male soccer team regarding injury localisation within the muscle-tendon unit, injury size and muscle group in terms of muscle injuries of the lower extremity. Cohort study based on data collected from a Swedish elite male soccer team during the seasons 2007-2012. In total, 145 muscle injuries were included. Injury localisation to the tendon or muscle, the size of haematoma and the affected muscle group were assessed using ultrasound. Age comparison was made between younger players (a parts per thousand currency sign23 years) and older players (> 23 years). No difference regarding injury localisation to either the tendon or the muscle, or the size of haematoma between the two age groups was found. However, the older group of players suffered a significantly higher number of injuries to the triceps surae than the younger players (p = 0.012). In a Swedish team of male soccer players at elite level, there was no difference between players 23 years or younger and players older than 23 years, in terms of injury distribution to muscles or tendons. Players older than 23 years sustained more injuries to triceps surae when compared with players 23 years or younger. The clinical relevance is to pay attention to muscle function of triceps surae in older players and to screen those players who may need an injury prevention programme. II.
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| 7. |
- Svensson, Kjell, et al.
(författare)
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The correlation between the imaging characteristics of hamstring injury and time required before returning to sports : a literature review.
- 2016
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Ingår i: Journal of Exercise Rehabilitation. - : Korean Society of Exercise Rehabilitation. - 2288-176X .- 2288-1778. ; 12:3, s. 134-142
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Forskningsöversikt (refereegranskat)abstract
- Injuries to the hamstring muscles are common in athletes. Track and field, Australian football, American football and soccer are examples of sports where hamstring injuries are the most common. The purpose of this study was to investigate whether there is a correlation between a hamstring injury prognosis and its characteristics of imaging parameters. The literature search was performed in the databases PubMed and CINAHL, and eleven articles were included. Seven out of the 11 articles showed a correlation between the size of the hamstring injury and length of time required before returning to sports. Different authors have reported contrasting results about length of time required before returning to sports due to location of injury within specific muscle. Majority of the articles found hamstring strain correlated to an extended amount of time required before returning to sports.
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| 8. |
- Archer, Trevor, et al.
(författare)
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Physical exercise ameliorates deficits induced by traumatic brain injury
- 2012
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Ingår i: Acta Neurologica Scandinavica. - : Hindawi Limited. - 0001-6314 .- 1600-0404. ; 125:5, s. 293-302
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Forskningsöversikt (refereegranskat)abstract
- The extent and depth of traumatic brain injury (TBI) remains a major determining factor together with the type of structural insult and its location, whether mild, moderate or severe, as well as the distribution and magnitude of inflammation and loss of cerebrovascular integrity, and the eventual efficacy of intervention. The influence of exercise intervention in TBI is multiple, ranging from anti-apoptotic effects to the augmentation of neuroplasticity. Physical exercise diminishes cerebral inflammation by elevating factors and agents involved in immunomodulatory function, and buttresses glial cell, cerebrovascular, and blood-brain barrier intactness. It provides unique non-pharmacologic intervention that incorporate different physical activity regimes, whether dynamic or static, endurance or resistance. Physical training regimes ought necessarily to be adapted to the specific demands of diagnosis, type and degree of injury and prognosis for individuals who have suffered TBI. © 2012 John Wiley & Sons A/S.
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| 9. |
- Brynolf, Margrethe, et al.
(författare)
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Läraryrkets många ansikten
- 2012
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- I Läraryrkets många ansikten diskuterar författarna lärarens komplexa och intensiva arbete och hur det har utvecklats genom tiderna. I boken behandlas en rad aspekter av läraryrket, bland annat: Skolans värdegrund Betyg och bedömning Skolkultur Skolans ledning och organisation Facket och lärarrollen Lärares professionalism Motivation och prestation Kreativitet Några kapitel är faktainriktade och redovisar olika styrdokument och forskningsresultat, andra är mer diskuterande och tar upp olika problem som lärare konfronteras med i sin yrkesutövning. Varje kapitel avslutas med en ”pedagogisk hörna” med frågor och uppgifter för diskussion och reflektion. Denna nya upplaga har uppdaterats och bearbetats med hänsyn till 2011 års läroplan, skollag, förordning och lärarutbildning.
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| 10. |
- Rung, Johan P., 1973, et al.
(författare)
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Effects of the dopamine stabilizers (S)-(-)-OSU6162 and ACR16 on prolactin secretion in drug-naive and monoamine-depleted rats.
- 2011
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Ingår i: Naunyn-Schmiedeberg's archives of pharmacology. - : Springer Science and Business Media LLC. - 1432-1912 .- 0028-1298.
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Tidskriftsartikel (refereegranskat)abstract
- Dopaminergic stabilizers may be conceptualized as drugs with normalizing effects on dopamine-mediated behaviours and neurochemical events. (S)-(-)-OSU6162 (OSU6162) and ACR16 are two structurally related compounds ascribed such properties, principally because of their stabilizing effects on motor activity in rodents. Reports in the literature indicate possible partial D2 receptor agonist effects using various in vitro systems. This study aimed to measure D2 receptor antagonist and agonist effects of OSU6162 and ACR16 in vivo. To address this, we have studied the effects of both compounds on prolactin secretion in drug-naive and dopamine-depleted rats; dopamine depletion was induced by pretreatment with reserpine plus α-methyl-DL: -p-tyrosine. We find that OSU6162 and ACR16 both stimulate prolactin secretion in drug-naive rats with OSU6162 being considerably more potent and efficacious. Both compounds show a non-significant trend towards reversal of the increased secretion caused by dopamine depletion, whereas the D2 receptor antagonist haloperidol further increased prolactin secretion. Thus, this study suggests that OSU6162 and ACR16 act as D2 receptor antagonists under normal conditions in vivo, possibly with minor agonist effects in a state of dopamine depletion.
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