Behrouz Hajilou; Mehrdad Anbarian
Abstract
Background and Aim: Volleyball is one of the most popular and attractive sports among different societies, and developing talent programs to discover and nurture talents and determine the contribution of different talent indicators in this sport, a development and research is needed. Therefore, the purpose ...
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Background and Aim: Volleyball is one of the most popular and attractive sports among different societies, and developing talent programs to discover and nurture talents and determine the contribution of different talent indicators in this sport, a development and research is needed. Therefore, the purpose of this research was to compare the anthropometric, physiological, psychological, and skill variables of elite volleyball players with different positions and non-elite volleyball players. Materials and Methods: 250 elite youth volleyball players and the same number of non-elite male players in the positions of middle defense, passer, libero, power receiver and middle defense while they were selected as available and participated in this study. Anthropometric indices, physiological capabilities, psychological characteristics and skill abilities of the participants were measured by field and experimental methods. For statistical analysis, one-way analysis of variance and Kruskal-Wallis statistical methods were used. Result: The results showed that the aerobic and anaerobic power, height, sitting height index, arm span, leg cororal, psychological variables (motivation, self-confidence, goal setting, tension, depression, anger, vitality, fatigue, confusion), service, pass and spike skill of the elite volleyball group were significantly higher than the non-elite group (p<0.05). On the other hand, body mass index, sitting height, arm span, and forearm brachial index, did not show any significant differences between players of different volleyball positions (p>0.05). Conclusion: According to the results of the present study, for scientific sports talent identification, besides anthropometric and physiological variables, psychological and skill variables should also be considered to identify talent. It is suggested to use anthropometric variables that were more different than others to find talent for different volleyball positions.
Mohammad Aliabadi; Hassan Daneshmandi; AliAsghar Norasteh
Abstract
Background and Aim: The main activities in handball and volleyball players occurs with upper limb, so the prevalence of injury in upper extremity is high than other organs. The purpose of this study was to identify the upper extremity injuries in handball and volleyball players in Iranian clubs ...
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Background and Aim: The main activities in handball and volleyball players occurs with upper limb, so the prevalence of injury in upper extremity is high than other organs. The purpose of this study was to identify the upper extremity injuries in handball and volleyball players in Iranian clubs and its relationship with some physical features. Materials and Methods: 80 subjects as handball (n=45, age 24.71±3.62 yr, height 186.58±5.67 cm and weight 86.66±9.81 kg) and volleyball players (n=35, age 25.71±4.57 yr, height 193.59±5.92 cm and weight 88.02±6.93 kg) were non-randomly participated in this study.A researcher-made questionnaire with 0.84 reliability was provided to determine the type of injuries.. anthropometrical parameters such as: height and Arm span, biacromial breadth (shoulder width), shoulder-elbow length, elbow-wrist length and carrying angle were measured by suitable divices. . After determining the normal distributionBy Kolmogorov-Smirnov test, Spearman correlation coefficient was used to determine the relationship between variables and Significant level was set as pResults: The results showed a significant negative correlation between sprain injuries in upper extremity and the biacromial breadth in athletes (p=0.007), moreover, a significant positive correlation was found between upper extremity fractures, and weight (p=0.02), height (p=0.01), Arm Span (p=0.01), shoulder width (p=0.01), the top arm's length (p=0.01), the arm's length in non-dominant hand (p=0.01) and the forearm in non-dominant hand (p=0.04). Conclusion: Some anthropometric parameters can be related with prevalence of upper extremity injuries in volleyball and handball players, so it can be considered as a one is important risk factor. Accordingly, giving consideration to athletes' preparation exercises on motor patterns, muscles and involved joints is among the most functional preventive strategies that can be useful to reduce sport injuries and promote championship life of elite athletes.
