Perceptions of Motivational Climate and Association with Musculoskeletal Injuries in Ballet Dancers

2021 ◽  
Vol 36 (3) ◽  
pp. 187-198
Author(s):  
Judith-Elisa Kaufmann ◽  
Rob GHH Nelissen ◽  
Paul R Appleton ◽  
Maaike GJ Gademan
Keyword(s):  
Motivational Climate ◽  
Musculoskeletal Injuries ◽  
Survey Study ◽  
Research Centre ◽  
Overuse Injuries ◽  
Moderating Effects ◽  
Cross Sectional ◽  
Ballet Dancers ◽  
Trauma Research ◽  
Sports Science

OBJECTIVE: Sports science has identified the trainer–athlete relationship in the etiology of injuries. We aimed to investigate: 1) the association between empowering (EMC) and disempowering (DMC) motivational-climate and musculoskeletal injuries in ballet, and 2) if EMC moderates the association between DMC and injuries. METHODS: A cross-sectional cohort survey-study was conducted online among ballet dancers (>18 yrs old) reporting acute and overuse injuries of the previous 2 years. Motivational climate was assessed with the Empowering-and-Disempowering Motivational Climate Questionnaire (5-point Likert scale). The Oslo Sports Trauma Research Centre Overuse Injury Questionnaire assessed severity of overuse injuries. Linear regression was performed adjusted for the confounders age, sex, expertise, experience, and initiation-age with an interaction term between EMC and DMC to assess effect modification. RESULTS: An international sample of 189 dancers (26.7±7.9 yrs; 130 professionals) reported 197 acute and 465 overuse injuries (in the previous 2 years). Mean EMC was 3.1±1.07, DMC 3.3±1.08. EMC was associated with less acute (b=–0.22; 95%CI –0.40 to –0.04) and overuse injuries (b=–0.74; 95%CI –0.99 to –0.50), while DMC was associated with more injuries (acute: b=0.30; 95%CI 0.13 to 0.47; overuse: b=0.74; 95%CI 0.50 to 0.98). When tested together and adjusted for confounders, EMC lost its protective effect (acute: b=–0.15; 95%CI –0.19 to 0.49; overuse: b=–0.34; 95%CI –0.81 to 0.13). DMC was positively associated with injuries throughout all settings (acute: b=0.43; 95%CI 0.10 to 0.76; overuse: b=0.46; 95%CI 0.00 to 0.91). EMC showed no moderating effects on DMC in the adjusted models. CONCLUSION: To avoid injuries, it is not enough to create an EMC, because any disempowering nuances may negatively affect empowering climates. Teachers should avoid DMC altogether to prevent injuries in dancers.

Injury rates in recreational tennis players do not differ between different playing surfaces

2017 ◽  
Vol 52 (9) ◽  
pp. 611-615 ◽  
Author(s):  
Babette M Pluim ◽  
Benjamin Clarsen ◽  
Evert Verhagen
Keyword(s):  
Cross Sectional Study ◽  
Research Centre ◽  
Overuse Injuries ◽  
Cross Sectional ◽  
Injury Rates ◽  
Tennis Players ◽  
Trauma Research ◽  
Natural Grass ◽  
Significant Difference ◽  
Artificial Grass

ObjectiveThe aim of this study was to determine whether there is a difference in the prevalence of tennis injuries between the four most common court surfaces in the Netherlands, including hard court, clay, sand-fill artificial grass and red-sand-fill artificial grass. Natural grass was not included in this study.MethodsThis was a repeated cross-sectional study over 6 months, involving members of the Royal Netherlands Lawn Tennis Association (KNLTB). A monthly questionnaire was sent to a random sample of 20 000 KNLTB members, stratified by their club’s playing surface. The questionnaire included questions on court surface, tennis exposure and physical complaints, using the Oslo Sports Trauma Research Centre questionnaire on health problems.ResultsA total of 3656 (18%) of the 20 000 invited members completed at least one of the monthly questionnaires [mean age 49 years (15)]. A total of 4047 injuries were reported by 1957 respondents. Of these injuries, 3246 (80%) were overuse and 801 (20%) were acute. There were no statistically significant differences in injury prevalence between groups who played primarily on any one of the four court surfaces. However, players who played on multiple surfaces had a higher injury prevalence, particularly of overuse injuries, than those who primarily played on one court surface. Compared with the other court surfaces, there was a higher prevalence of lower limb overuse injuries when playing on hard court.ConclusionThere is no significant difference in the overall prevalence of injury on clay, hard court, sand-fill artificial grass and red-sand-fill artificial grass.

scholarly journals Remarkably high prevalence of overuse-related knee complaints and MRI abnormalities in youth competitive alpine skiers: a descriptive investigation in 108 athletes aged 13–15 years

2020 ◽  
Vol 6 (1) ◽  
pp. e000738
Author(s):  
Stefan Fröhlich ◽  
Loris Peterhans ◽  
Christoph Stern ◽  
Walter O Frey ◽  
Reto Sutter ◽  
...  
Keyword(s):  
Structural Changes ◽  
Knee Injuries ◽  
Research Centre ◽  
Growth Spurt ◽  
Overuse Injuries ◽  
Systematic Screening ◽  
Effective Prevention ◽  
Trauma Research ◽  
Knee Complaint ◽  
Alpine Skiers

Background/aimCompetitive alpine skiing is known to be associated with a high risk of traumatic knee injuries. However, little is known about the exact prevalence of knee overuse injuries and their associations with structural changes, particularly in youth skiers. Accordingly, the aim of the present study was to describe the overuse-related knee complaints and MRI abnormalities in a cohort of youth skiers around the growth spurt.Methods108 youth competitive alpine skiers aged 13–15 years were examined using an MRI of both knees, an interview on existing knee complaints and a physical examination. As a common baseline for these assessments, skiers were prospectively monitored by the use of the Oslo Sports Trauma Research Centre questionnaire on health problems over a period of 12 months preceding the major investigations.Results88.0% of the youth skiers showed at least one MRI abnormality in the knees. The most frequent findings were distal femoral cortical irregularities (63%), focal periphyseal oedema (FOPE) zones (25.0%) and cartilage lesions (18.5%). 47.2% of all skiers suffered from at least one overuse-related knee complaint during the 12 months preceding the MRI examination, mostly at the distal and proximal patellar tendon. However, despite a certain association with corresponding MRI abnormalities, the sensitivity of an MRI-based detection of such complaints was strongly limited.ConclusionYouth competitive alpine skiers suffer from a remarkably large number of knee overuse injuries. Accordingly, an effective prevention strategy should include a systematic screening of clinical complaints, ideally already starting around the growth spurt.

scholarly journals Epidemiology of Traumatic and Overuse Injuries in Swiss Professional Male Ice Hockey Players

2020 ◽  
Vol 8 (10) ◽  
pp. 232596712096472
Author(s):  
Romana Brunner ◽  
Mario Bizzini ◽  
Karin Niedermann ◽  
Nicola A. Maffiuletti
Keyword(s):  
Relative Effect ◽  
Ice Hockey ◽  
Research Centre ◽  
Overuse Injuries ◽  
Injury Incidence ◽  
Time Loss ◽  
Traumatic Injuries ◽  
Trauma Research ◽  
Hockey Players ◽  
National League

Background: Ice hockey injury patterns in Europe were last evaluated in the 1990s. Purpose: The aim of this study was to assess the frequency, type, location, and incidence of traumatic injuries, as well as the prevalence and relative effect of overuse injuries in professional male ice hockey players. Study Design: Descriptive epidemiology study. Methods: Traumatic injuries were assessed using a standardized injury report form over a 1-year period (including the preparatory phase and season). The Oslo Sports Trauma Research Centre Overuse Injury Questionnaire was used to determine overall and substantial overuse injuries and their relative effect on ice hockey players. Results: Five Swiss National League teams participated in the study. From a total of 321 recorded injuries, 179 led to time loss from sport. The game-related time-loss injury incidence during the season was 88.6/1000 player-game hours.Time-loss injuries affected mainly the hip/groin/thigh region (23%), followed by the head (17%). Most time-loss injuries were classified as muscle strains (24%), followed by concussions (18%). The most common injury mechanism involved collision with an opponent’s body (31%), and right forward players (23%) were most likely to report a game-related injury. Most injuries (27%) occurred within the defending zone along the boards. The average prevalence rates of all overuse and substantial overuse injuries were 49% and 13%, respectively. The hip/groin displayed the highest average prevalence for all overuse problems (16%), translating to the highest relative effect. Conclusion: Muscle strains and concussions were the most frequent time-loss injuries in Swiss professional ice hockey players. The hip/groin was the most affected region for both traumatic and overuse injuries.

scholarly journals Overuse injuries in the knee, back and hip of top elite female alpine skiers during the off-season preparation period: prevalence, severity and their association with traumatic preinjuries and training load

2020 ◽  
Vol 6 (1) ◽  
pp. e000892
Author(s):  
Stefan Fröhlich ◽  
Seraina Pazeller ◽  
Afsaneh Safar Cherati ◽  
Erich Müller ◽  
Walter O Frey ◽  
...  
Keyword(s):  
Knee Injury ◽  
Knee Injuries ◽  
Training Load ◽  
Research Centre ◽  
Overuse Injuries ◽  
Traumatic Injuries ◽  
Trauma Research ◽  
Preparation Period ◽  
Alpine Skiers ◽  
And Training

ObjectivesTo investigate knee, back and hip overuse injuries in top female elite alpine skiers during the off-season preparation, which has so far received little attention, and to assess their relationship with traumatic preinjuries and overall training load.MethodsA cohort of 26 females of the Swiss Alpine Ski-Team were prospectively surveyed by the use of the Oslo Sports Trauma Research Centre questionnaire. Along with the surveys also total training loads were monitored. Data on preinjuries were assessed retrospectively by baseline questionnaires and were verified by team medical records.Results57.7% of the female skiers suffered from at least one severe traumatic knee injury during their preceding career. The average 2-weekly prevalence of overuse injuries was highest for the knee, followed by the back and hip. Technique specialists (major giant slalom and slalom) were more prone to back overuse injuries than speed specialists (major super-G and downhill). The occurrence of knee overuse complaints was directly associated to previous severe traumatic knee injuries and athletes' total training hours.ConclusionIn top female elite alpine skiers, knee, back and hip overuse injuries are relatively frequent. Moreover, discipline preferences, previous traumatic injuries and the overall training load may play an important role for their manifestation.

SIGNIFICANCE OF PLACENTAL HISTOPATHOLOGICAL FINDINGS IN PRETERM/TERM BIRTH

2020 ◽  
Vol 4 (5) ◽  
Author(s):  
Monika Kushwaha ◽  
Sanjeev Narang
Keyword(s):  
Preterm Birth ◽  
Comparative Study ◽  
Pregnancy Outcome ◽  
Neonatal Morbidity ◽  
Research Centre ◽  
College Hospital ◽  
Cross Sectional ◽  
Chorionic Villi ◽  
Term Birth ◽  
Medical College

Background: This study is cross-sectional, observational and comparative study, at Index Medical College, Hospital & Research Centre, Indore, Madhya Pradesh from July 2017 to July 2019 with sample size 100 placentae. Method: The placenta received was evaluated blinded of maternal pregnancy outcome. The pattern of morphology was evaluated both qualitatively (type of lesion) and quantitatively (number of lesions). Result: In Present study 79% of the deliveries were term deliveries and 21% were preterm deliveries. On placental macroscopy, placenta weight was significantly low among the neonates of preterm deliveries (370.00±60.49) as compared to term deliveries (440.89±55.22). Preterm placenta had higher number of abnormal placental lesion compared to term pregnancies. Conclusion: The uteroplacental insufficiency defined as placental infarct, fibrosis of chorionic villi, thickening of blood vessels, and poor vascularity of chorionic villi. Placental histopathological lesions are strongly associated with maternal under perfusion and uteroplacental insufficiency. These are the reasons for preterm birth. Thus, knowledge of the etiological factor can be use to reduce maternal and neonatal morbidity and mortility. Keywords: Placenta, Term & Preterm.

Knowledge and Communication of the National Core Standards Tool

2018 ◽  
Vol 20 (2) ◽  
Author(s):  
Winnie Thembisile Maphumulo ◽  
Busisiwe Bhengu
Keyword(s):  
Pearson Correlation ◽  
Healthcare Delivery ◽  
Healthcare Providers ◽  
Sampling Technique ◽  
Quality Of Healthcare ◽  
Survey Study ◽  
Public Healthcare ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Professional Nurses

The National Department of Health in South Africa has introduced the National Core Standards (NCS) tool to improve the quality of healthcare delivery in all public healthcare institutions. Knowledge of the NCS tool is essential among healthcare providers. This study investigated the level of knowledge on NCS and how the NCS tool was communicated among professional nurses. This was a cross-sectional survey study. Purposive sampling technique was used to select hospitals that only offered tertiary services in KwaZulu-Natal. Six strata of departments were selected using simple stratified sampling. The population of professional nurses in the selected hospitals was 3 050. Systematic random sampling was used to recruit 543 participants. The collected data were analysed using SPSS version 25. The study showed that only 16 (3.7%) respondents had knowledge about NCS, using McDonald’s standard of learning outcome measured criteria regarding the NCS tool. The Pearson correlation coefficient between the communication and knowledge was r = 0.055. The results revealed that although the communication scores for the respondents were high their knowledge scores remained low. This study concluded that there is a lack of knowledge regarding the NCS tool and therefore healthcare institutions need to commit themselves to the training of professional nurses regarding the NCS tool. The findings suggest that healthcare institutions implement the allocation of incentives for nurses that attend the workshops for NCS.

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