The role of core stability in the development of non-contact acute lower extremity injuries in an athletic population: A prospective study

Background: Overuse injuries in sports seem to be 1.5 to 2.5 times more common than traumatic injuries in the lower extremity (LE) in children and adolescents. Floorball is the most popular indoor sport in Sweden and is associated with many potential risks of injuries. However, to our knowledge, no previous studies have examined the appearance of injury in young floorball players. Objective: The aim of the present study was to investigate the occurrence of overuse injuries in LE in floorball players aged 15 or younger, with respect to frequency, location, and consequence of injury. Method: Fifty-seven players, from 9 different teams, participated (mean age 11±2 years). A modified version of Oslo Sports Trauma Research Center Overuse Injury Questionnaire was submitted every fourth week during five months in order to record overuse injuries in LE. An online survey software was used to send out the questionnaires. Results: A of 42 overuse injuries in 42% (24/57) of the cohort were found. The average monthly prevalence for all players, in any anatomical area, was 28% (95% confidence total interval 18%-38%). The most common location of injuries was the knee (43%), followed by the foot (40%). Conclusion: The present study shows, in accordance with other recent studies on children and adolescents that overuse injuries seem to be a common problem for young floorball players. Knee and foot appear to be the most common location for overuse injuries in this population. Prospective analyses of different mechanisms for overuse injury in youth athletes and the relation to growth-related overuse disorders is desirable.

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The Role of Footwear on Plantar Pressure Performance during Badminton Movements

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.55-57.1675 ◽

2011 ◽

Vol 55-57 ◽

pp. 1675-1678 ◽

Cited By ~ 3

Author(s):

Wei Jie Fu

Keyword(s):

Lower Extremity ◽

Lower Extremity Injury ◽

Maximum Pressure ◽

Improve Technique ◽

Lower Extremity Injuries ◽

Two Phases ◽

Extremity Injuries ◽

Left Front ◽

Footwear Design

In this investigation, we focus on three most frequently applied badminton footwork and analyze relations among the features of intensity of pressure, distribution of pressure, and the mean maximum pressure during the movements in order to improve technique and give available suggestions on footwear design and lower-extremity injury prevention. All subjects (N=10) performed three typical footwork movements: Left Front-court Lunge Steps (LFLS), Right Front-court Lunge Steps (RFLS), and Rear-court Revolve to Jump (RRJ) with the peak pressure and distribution of pressure collected by Medilogic insole measurement (300Hz) simultaneously. Due to the characteristics of footwork, the whole period was subdivided into two phases to be analyzed: toe-off (TO) and touch-down (TD). The results indicated that the metatarsal heads and lateral of heel proved to be the most contacting regions with the surface. Therefore, different areas of outsole should be designed with different materials respectively so as to disperse pressures. Stability for rear foot and ankle joint should be enhanced in terms with the shoe design in order to prevent potential lower-extremity injuries.

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