Extracting in-play scenes in sport videos is essential for quantitative analysis and effective video browsing of the sport activities. Game analysis of badminton as of the other racket sports requires detecting the start and end of each rally period in an automated manner. This paper describes an automatic serve scene detection method employing cubic higher-order local auto-correlation (CHLAC) ...

In recent years, there has been a decline in physical activity among adults. Motivation has been shown to be a crucial factor in maintaining physical activity. The purpose of this study was to whether PA motives measured by the Physical Activity and Leisure Motivation Scale PALMS predicted the actual amount of PA at a later time to provide evidence for the construct validity of the PALMS. A qua...

To compare the velocity characteristics of wheelchair propulsion with and without the use of a tennis racquet, eight male wheelchair tennis players performed a series of 20m sprints from a stationary start. The maximum velocities reached on average 4.39 ± 0.74 m/s; however, they were reduced by 0.18 ± 0.06 m/s during the racquet condition. Furthermore, when wheeling under the racquet condition,...

Badminton is one of the racquet games and fun sports that has captivated hearts its fans in a way created atmosphere for it to own most pages regional international news, played with special rackets differ from other rackets, all these things combined have made badminton favorite game many people because capabilities providing practitioners both sexes vitality activity, maintaining their physic...

Introduction The badminton smash is an essential component of a player’s repertoire and a significant stroke in gaining success as it is the most common winning shot, accounting for 53.9% of winning shots (Tsai and Chang, 1998; Tong and Hong, 2000; Rambely et al., 2005). The speed of the shuttlecock exceeds that of any other racket sport projectile with a maximum shuttle speed of 493 km/h (306 ...

INTRODUCTION This study investigated the sport-related ankle injuries attending an accident and emergency (A&E) department during a 1-year period. METHODS A total of 1715 sports injuries cases attending an A&E department from 1 January 2005 to 31 December 2005 were prospectively recorded. Details of each classified case were recorded in a computerised record system by the triage nurse. At the...

ABSTRACT A systematic review in PubMed, Web of Science, SPORTDiscus, PsycINFO, and Google Scholar was conducted to provide a state-of-the-science overview agility tests the racquet sports tennis, badminton, squash while evaluating their measurement properties. Twenty articles were included covering 28 tests. Results showed 10 sport-specific which 5 assessed on reliability 6 validity. Both Badca...

a racquet-ball, which is able to penetrate far into the orbit, and which comes with great force. A golf-ball is heavier than a racquet-ball, and is hit with even greater force ; moreover, these rebound injuries often occur from bunkers very close at hand. There is probably very little difference in the momentum of the two balls, but the diameter of a racquet-ball is 38 mm. whilst that of a golf...

Intermittent sports (e.g., team sports) are diverse in their rules and regulations but similar in the pattern of play; that is, intermittent high-intensity movements and the execution of sport-specific skills over a prolonged period of time (~1-2 h). Performance during intermittent sports is dependent upon a combination of anaerobic and aerobic energy systems, both of which rely on muscle glyco...

OBJECTIVES The aim of this study was to investigate to what extent 9 to 11 year old children participating in a specific sport already exhibit a specific anthropometric, physical fitness and motor coordination profile, in line with the requirements of that particular sport. In addition, the profiles in children with a different training volume were compared and possible differences in training ...