Individual variation of bowstring release in high level archery: a comparative case study
Journal Title: Human Movement - Year 2011, Vol 12, Issue 3
Abstract
Purpose. The muscle-contraction strategy between the predominant forearm and pull finger used in archery is defined as a response to the fall of the “clicker” by active contraction of the m. extensor digitorum (MED) and the gradual relaxation of the m. flexor digitorum superficialis (MFDS). However, one archer with a long-term high performance history makes use of an entirely different strategy, which is thought to have positive effects on her performance. The purpose of this study was to make a more detailed analysis of the contraction strategy performed by this particular top-level archer and to consider the advantages this strategy may have on bowstring behaviour after release. Methods. A high level (world-class) archer volunteered to participate in this study. The subject has been ranked in the top 20 in the world and as one of the top 3 archers in Europe for almost two decades. The subject has a personal best score of 1354 points (pts) in a qualification round as well as receiving 168 pts in an 18-arrow match. The subject engaged in a single test session consisting of 12 shots. EMG activity of the MFDS and MED were quantified. Results. The subject’s MFDS was found to be clearly relaxed even ~ 100 ms after the snap of the clicker was heard. The subject also showed a gradual relaxation of the MED after the snap of the clicker. Conclusion. The study results found that this different type of contraction-relaxation strategy can be used in the drawing arm with success, as it may avoid causing a lateral deflection of the bowstring.
Authors and Affiliations
Hayri Ertan, Axel J. Knicker, Ruhi A. Soylu, Heiko K. Strüder
Keywords
Related Articles
- EP ID EP124667
- DOI doi: 10.2478/v10038-011-0030-x
- Views 95
- Downloads 0
An assessment of hydrodynamic and simulated race performance features of three C-1 hull designs
Purpose. Recently engineered Canadian Single (C-1) canoe hull designs have been found to produce less resistive drag than the traditional Delta design in tow tank test conditions. If these laboratory findings were found...
RELATIONSHIP BETWEEN ANTHROPOMETRIC MEASURES AND SAGITTAL SPINAL CURVATURES IN ADULT MALE HANDBALL PLAYERS
Purpose. Increasing anthropometric measures bring considerable spinal loads during sports practice, which inversely affects the adaptation abilities of the spinal structures; this in turn influences the spinal curvatures...
Growth and functional characteristics of male athletes 11–15 years of age
Purpose. To evaluate the growth and functional characteristics of male athletes 11–15 years of age. Basic procedures. The sample included 190 boys, 10.5–15.4 years, undergoing training of sport schools for track and fiel...
Secondary school students’ interest in various forms of physical activity
Purpose. Students’ interest in various forms of physical activity (individual and team sports) is known to differ depending on sex, place of residence, age, the time of year, and many other factors. The aim of the presen...
The relationship between physical fitness and quality of life in adults and the elderly
Purpose. The aim of this study was to determine the relationships between physical fitness and various aspects of quality of life in middle-aged adults and the elderly. Methods. The sample included 216 women and 43 men,...