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Luppino F, van Diepen M, den Hollander-Gijsman M, Bartlema K, Dekker F. Level of Overestimation Among Dutch Recreational Skiers: Unskilled Tourists in the Mountains. Clin J Sport Med 2023; 33:e172-e180. [PMID: 37235852 DOI: 10.1097/jsm.0000000000001158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 03/29/2023] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To examine the level of overestimation (LO), associated factors, and identify the group of severe overestimators, among recreational skiers. DESIGN Cross-sectional observational study. SETTING An intermediate difficulty slope in an artificial snow indoor ski hall, and one in the mountains (Flachau, Austria). PARTICIPANTS Dutch recreational skiers. INDEPENDENT VARIABLES Participants were asked to rate themselves (SRSS, self-reported skill score). While skiing downhill they were objectively evaluated by 2 expert assessors (OSS, observed skill score). Potential associated factors and predictors for severe overestimation were assessed by a questionnaire. MAIN OUTCOME MEASURES The LO, calculated by subtracting the OSS from the SRSS, was categorized into "no," "mild," and "severe." Potential differences between these groups were analyzed, and regression analyses were performed to identify the factors associated with severe overestimation. To construct a profile of severe overestimators, the dataset was stratified based on 3 variables. RESULTS Overestimation was largely present (79.8%), and was severe in 32%. The LO decreased toward the more skilled skiers. Severe overestimators were mainly male, skied the least hours per day, were more avoidant, and showed the highest proportions of beginners and slightly advanced skiers. The profile of "severe overestimator" is characterized by physically unprepared males, avoidant for certain weather circumstances. CONCLUSIONS Overestimation among recreational Dutch skiers is largely present, particularly among physically unprepared males, avoidant of certain snow and weather conditions. These features may function as a proxy to identify "severe overestimators" in comparable populations. Preventive strategies should focus to increase awareness particularly among these subjects.
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Affiliation(s)
| | - Merel van Diepen
- Department of Clinical Epidemiology, Leiden University Medical Centre, the Netherlands
| | | | - Kornelis Bartlema
- Department of Traumatology, Leiden University Medical Centre, the Netherlands
| | - Friedo Dekker
- Department of Clinical Epidemiology, Leiden University Medical Centre, the Netherlands
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Ma X, Li JY, Andd SG, Ao YF, Yang YP. Comparison and analysis of skiing injuries at ski resorts in Chongli, China and Japan. Chin J Traumatol 2023; 26:63-67. [PMID: 36180308 PMCID: PMC10071314 DOI: 10.1016/j.cjtee.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/29/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
PURPOSE The rapid development of winter sports requires investigation on injuries in Chongli district, Zhangjiakou city, one of the ski sites of the 2022 Winter Olympics. Careful evaluation is required to observe which injuries are caused under what circumstances, and then we can make corresponding preventive measures and recommendations based on the results. METHODS In this retrospective study, the data of injury cases at ski resorts in China (Chongli district) and Japan were analyzed to provide a reference for the ongoing injury prevention at ski resorts. We collected data on injuries at Wanlong and Fulong ski resorts in Chongli district during the 2017-2018 and 2018-2019 ski seasons. We referred to the skiing injury report issued in February 2020 of a nationwide ski safety statistical service - Japan Ski Safety Association. The causes of injury and specific injured body parts were analyzed based on the data of Chinese and Japanese ski resorts. Statistical significance has been calculated using the Chi-square test. RESULTS During the 2019-2020 ski season in Japanese ski resorts, the number of reported injuries per 10,000 skiers was 0.93, of which 457 (17.3%) were over 50 years old, accounting for a large proportion of injuries, meanwhile in Chongli ski resort, the injury rate of skiers aged 50 and over was 7.1%. The knee joint (23.7% at Wanlong ski resort and 28.4% in Japanese ski resorts) was the most injured body part among Chongli and Japanese skiers. Among snowboarders, shoulder joint injury (17.7% in Japanese ski resorts) was the most common, and injury on hands and fingers (16.3% in Wanlong ski resorts) was the most common. Head injury rates are similar in Chongli, China and Japanese ski resorts (8.2% and 8.7%, respectively). CONCLUSION Our analysis demonstrated that injury data recorded among young skiers was higher in Chinese ski resorts (Chongli district) than that in Japanese ski resorts, and elderly skiers made up a larger proportion of skiing injuries in Japanese resorts. Thus, according to our research, the protection of knee joints, shoulder joints, and hands and fingers should be taken seriously. It should pay attention to the teaching of ski poles (for finger protection), and use protective devices such as knee pads, helmets, etc.
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Affiliation(s)
- Xiao Ma
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, 100191, China
| | - Jiong-Yuan Li
- School of China-Japan Friendship Clinical Medicine, Peking University, Beijing, 100029, China
| | - Shi Geru Andd
- Zhangjiakou Chongli Great Wall Ice-Snow Tourism Development and Management Co., Ltd., Chongli District, Zhangjiakou, 076350, Hebei Province, China
| | - Ying-Fang Ao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, 100191, China
| | - Yu-Ping Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, 100191, China; Department of Sports Medicine, Peking University Third Hospital-Chongli, Zhangjiakou, 076350, Hebei Province, China.
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Luppino FS, den Hollander-Gijsman ME, Dekker FW, Bartlema KA, van Diepen M. Estimating skills level in recreational skiing: Development and validation of a practical multidimensional instrument. Scand J Med Sci Sports 2023; 33:55-63. [PMID: 36229351 PMCID: PMC10091691 DOI: 10.1111/sms.14245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 09/13/2022] [Accepted: 10/09/2022] [Indexed: 12/13/2022]
Abstract
Skiing and snowboarding are both popular recreational alpine sports, with substantial injury risk of variable severity. Although skills level has repeatedly been associated with injury risk, a validated measure to accurately estimate the actual skills level without objective assessment is missing. This study aimed to develop a practical validated instrument, to better estimate the actual skills level of recreational skiers, based on the criteria of the Dutch Skiing Federation (DSF), and covering five different skill domains. A sample of Dutch recreational skiers (n = 84) was asked to fill in a questionnaire reflecting seven, a priori chosen predictors by expert opinion, to ski downhill and to be objectively evaluated by expert assessors. The instrument was developed to have a multidimensional character and was validated according to the TRIPOD guideline (Transparent reporting of a multivariable prediction model for individual prognosis or diagnosis). The sample reported an overall incorrect self-reported estimation of their skills, compared with the observed skill score. The instrument showed good calibration and underwent multiple validation methods. The estimated skills score showed to be closer to the observed scores, than self-reportage. Our study provides a practical, multidimensional, and validated instrument to estimate the actual skills level. It proved to better reflect the actual skills levels compared with self-reportage among recreational skiers.
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Affiliation(s)
| | | | - Friedo Wilhelm Dekker
- Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Merel van Diepen
- Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
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Tucker NJ, Kelley N, Strage KE, Mauffrey C, Parry JA. Pelvic ring injuries after alpine ski and snowboard accidents. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2022:10.1007/s00590-022-03331-x. [PMID: 35831489 DOI: 10.1007/s00590-022-03331-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
PURPOSE The purpose of this study was to analyze the patient/injury characteristics and associated hospital course of patients sustaining traumatic pelvic ring injuries after alpine ski and snowboard accidents at a level one trauma center in the Rocky Mountain region. METHODS Patient/injury characteristics were obtained from patients presenting with pelvic ring injuries after alpine ski (n = 55) and snowboard (n = 9) accidents. Characteristics and outcomes analyzed included mechanism of injury, pelvic ring classification (Young-Burgess and Tile), hospital admission, physical therapy (PT) clearance, ambulation, length of stay, inpatient morphine milligram equivalents (MME), and discharges to rehabilitation facility. RESULTS Snowboarders were more often younger, male, tobacco/substance users, and more likely to be injured by a fall from height than skiers. There were no differences in injury classification or hospital course outcomes between alpine sports. Most common injuries included lateral compression type 1 (LC1) injuries (37.5%), isolated pubic ramus fractures (31.3%), and isolated iliac wing fractures (15.6%). LC1 injuries were unstable in 50% of cases and associated with increased admissions (proportional difference: 47.5%, CI: 23.8-64.5%, p = 0.0002), longer time to PT clearance (median difference(MD): 1.0 day, CI: 0-2.0, p = 0.03), longer LOS (MD: 2.0, CI: 0-2.0, p = 0.02), and increased inpatient MMEs (MD: 197.9 MME, CI: 30.0-420.0, p = 0.02), as compared to other pelvic ring injuries. CONCLUSION The majority of pelvic ring injuries from alpine ski and snowboard accidents were LC1 injuries, half of which were unstable, resulting in longer hospital stays, time to PT clearance/ambulation, and opioid use.
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Affiliation(s)
- Nicholas J Tucker
- Department of Orthopedics, Denver Health Medical Center, Denver Health, 777 Bannock St, MC 0188, Denver, CO, 80204, USA
- University of Colorado School of Medicine, Aurora, CO, USA
| | - Naomi Kelley
- University of Colorado School of Medicine, Aurora, CO, USA
| | - Katya E Strage
- Department of Orthopedics, Denver Health Medical Center, Denver Health, 777 Bannock St, MC 0188, Denver, CO, 80204, USA
- University of Colorado School of Medicine, Aurora, CO, USA
| | - Cyril Mauffrey
- Department of Orthopedics, Denver Health Medical Center, Denver Health, 777 Bannock St, MC 0188, Denver, CO, 80204, USA
- University of Colorado School of Medicine, Aurora, CO, USA
| | - Joshua A Parry
- Department of Orthopedics, Denver Health Medical Center, Denver Health, 777 Bannock St, MC 0188, Denver, CO, 80204, USA.
- University of Colorado School of Medicine, Aurora, CO, USA.
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Motives for the Use or Not of Protective Equipment for the Recreational Practice of Skiing and Snowboarding in Spanish Winter Stations. Healthcare (Basel) 2021; 9:healthcare9121767. [PMID: 34946493 PMCID: PMC8701195 DOI: 10.3390/healthcare9121767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 11/28/2022] Open
Abstract
The objective of this research was to analyze the motives for using or not using protections by recreational ski and snowboard athletes, specifically regarding gender and age in the winter resorts of Sierra Nevada and Alto Campoo (Spain). A total of 520 users participated in Sierra Nevada (n = 306 (58,8%)) and Alto Campoo (n = 214 (42.2%)); 257 of them were men (49.4%) and 263 (50.6%) were women; from 6 to 50 years old; classified by 4 stages of development (Childhood (n = 106 (20.4%); Teenagers (n = 110 (21.2%); Young adults (n = 101 (19.4%); Adults (n = 203 (39.0%)). For the data collection an ad hoc questionnaire was used (socio-demographic data, use/no use of protection, motives for the use). The data revealed that 76.5% used protections equipment, with the women being more likely to use protective equipment than men. Regarding age, young adults and adults were the ones using less protection. In relation to the motives of using protective equipment, security was the main motive for using it, while the reason to avoid using it was, most of the time, discomfort. Additionally, the childhood and teenager groups were the ones who reported, as motivation, family obligation, showing the importance of the influence of the parents.
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Protections in the Recreational Practice of Ski and Snowboard-An Age and Gender Discussion? A Case Study in Spain. J Funct Morphol Kinesiol 2021; 6:jfmk6040084. [PMID: 34698237 PMCID: PMC8544293 DOI: 10.3390/jfmk6040084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/29/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022] Open
Abstract
The objective of this research was to evaluate the protections taken by ski and snowboard recreational athletes of the winter stations Sierra Nevada and Alto Campoo (Spain), regarding gender, age, and practiced sport. A total of 520 users participated, Sierra Nevada (n = 306 (58.8%)); Alto Campoo (n = 214 (42.2%)), 257 of them were men (49.4%) and 263 (50.6%) were women, from 6 to 64 years old, classified by 4 stages of development (Childhood (n = 106 (20.4%)); Teenagers (n = 110 (21.2%)); Youth (n = 101 (19.4%)); Adults (n = 203 (39.0%))). For the data collection, an Ad Hoc questionnaire was used (Socio-demographic data, use/no use of protection). The data revealed that 23.5% of the participants did not use any protection. Regarding the development stage, 1% of the children did not use any protection, neither did 3.1% of the teenagers, 6.7% of the youth, or 12.7% of the adults (p < 0.001). Regarding gender, a total of 17.1% of men did not use protection, and regarding women, 6.3% of them did not use it (p < 0.001). In relation to the practiced sport, 15.8% of the skiers did not use it against 7.7% of the snowboarders (p = 0.006). The use of protection for the practice in winter sports is not enough to reduce the injury risk in these sports and, in the worst cases, fatal accidents.
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Chen N, Yang Y, Jiang Y, Ao Y. Injury patterns in a large-scale ski resort in the host city of 2022 Winter Olympic Games: a retrospective cross-sectional study. BMJ Open 2020; 10:e037834. [PMID: 33234619 PMCID: PMC7684805 DOI: 10.1136/bmjopen-2020-037834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES The aims of the study are to describe the injury patterns among recreational skiers and snowboarders in China and to provide primary data to guide the reconstruction of regional healthcare facilities to deal with the increasing number of participants in snow sports. DESIGN Retrospective cross-sectional study. METHODS A retrospective study was performed in Wanlong Ski Resort in Chongli, China. Data of all injured skiers and snowboarders treated in the resort clinic during the 2018-2019 season were collected. Patients' information, including sex, age, equipment, skill level and injured body part, was analysed. RESULTS A total of 753 sports injuries were recorded. The estimated incidence of injury was 1.98 per 1000 skier days. 453 cases (60.2%) were associated with skiing. The mean age of skiers was older than snowboarders (35.1±14.5 vs 29.0±8.9, p<0.01). Injury not involving others constituted 67.9% of all injuries. The most common injured body part among skiers was lower extremity, contrary to injury in the upper extremity among snowboarders. Head and cervical injury was identified in 13.7% of skiers and 13.6% of snowboarders. CONCLUSION The incidence of skiing/snowboarding injury in China was similar to other countries. Injury pattern differed among different sports and causes of injury.
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Affiliation(s)
- Nayun Chen
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China
- Institute of Sports Medicine of Peking University, Beijing, China
| | - Yuping Yang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China
- Institute of Sports Medicine of Peking University, Beijing, China
| | - Yanfang Jiang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China
- Institute of Sports Medicine of Peking University, Beijing, China
| | - Yingfang Ao
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China
- Institute of Sports Medicine of Peking University, Beijing, China
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