Comparison of acute sports injury between recreational skiers and skiers / 北京大学学报(医学版)

OBJECTIVE@#To compare and analyze the difference between the injuries of recreational skiers in public ski resorts and those of skiing athletes in official competitions, and to explore the suggestions of medical insurance for these two types of skiers.@*METHODS@#The injury data of recreational skiers in Chongli District, Zhangjiakou City, Hebei Province during 2018-2019 and 2019-2020 snow seasons, and the injury data of skiers in two official international skiing competitions during 2019-2020 snow season and domestic test events in Chongli District of 2021 Winter Olympic Games were analyzed retrospectively, and the similarities and differences were compared.@*RESULTS@#A total of 1 187 injuries occurred to recreational skiers in the two public ski resorts during the 2018-2019 snow season, with an injury rate of 0.3%.There were 1 277 injury sites in total, and the most frequent injury sites were head and neck (230 cases, 18.0%), followed by knee joint (204 cases, 16.0%) and lower extremity (131 cases, 10.3%). Thirty-one skiers were injured in the two official international skiing competitions in the 2019-2020 and 2020-2021 snow season, and in the domestic test competitions in the 2021 Winter Olympic Games, and the injury rates were 11.5%, 17.2% and 12.0%, respectively. There were 37 injury sites in total, among which 11 (29.7%) were in the head and neck, followed by 6 (16.2%) in the knee joint and 5 (13.6%) in the chest, rib and abdomen.@*CONCLUSION@#In order to better guarantee the safety of skiers and timely provide corresponding medical help, safety facilities and technical guidance should be added to the snow resort for leisure skiing, and medical stations should be set up in the snow resort. As the formal ski racing for skiing athletes during the game has 30 to 80 times higher injury ratesthan recreational skiers, and compared with the recreational skiing, head and neck injury rate is higher, and the damage is much heavier, more complete first aid facilities and experienced medical workers are, needed so the field should be equipped with the circuit inside the quantities, track fixed outside the clinic, surrounding referral hospitals set up trauma centers to provide athletes with more timely medical care.

Simultaneous Double Injury of the Interphalangeal Dislocation and Bony Skier's Thumb: A Case Report

Simultaneous double injury of the thumb at the interphalangeal joint and metacarpophalangeal joint occurring at the same time are seldom seen in medical practice. 72 year old male had posterior discation of interphalangeal joint and ulnar collateral ligament injury of metacarpophalangeal joint, as known as skier's thumb after he fell down from the bike. Open posterior dislocation of interphalangeal joint was stabilized by reduction and then skin suture was done. Metacarpophalangeal joint had totally ruptured ulnar collateral ligament with Stener lesion and bony fragment of base of proximal phalanx. The joint was subluxated and was not reduced due to jammed bony fragment. Displaced avulsion fracture of volar plate with ulnar collateral ligament injury was not reported by author's research. The author reduced bony fragment in joint and repaired ulnar lateral ligament. It has been 6 month after the operation and the patient is followed up. The patient has normal range of motion without instability of metacarpophalangeal and interphalangeal joint. We report our experience about simultaneous double injury of thumb and bony skier's thumb.

THE ANAEROBIC THRESHOLD AND MAXIMAL OXYGEN UPTAKE OF CHINESE CROSS-COUNTRY SKIERS / 中国运动医学杂志

The anaerobic threshold (AT) and maximal oxygen uptake (VO_(2max)) are both important physiological foundation of the aerobic capacity for athletes. The purpose of this study was to evaluate the cross-country skiers' aerobic capacity comprehensively and to provide useful information for selecting and training skiers by using the AT and VO_(2max). The results showed that there were significant differences between men's VO_(2max) (4.4L/min, 69.09 ml/kg. min and VO_(2AT) (2.89 L/min) and women's (3.071/min, 55.33 ml/min for VO_(2max) and 2.03 L/min for VO_(2AT), respectively) (p