Temporal Trends of Linear Speed and Change of Direction Performance in Italian Children.

IF 1.9 3区 医学 Q2 SPORT SCIENCES
Journal of Human Kinetics Pub Date : 2024-12-06 eCollection Date: 2025-01-01 DOI:10.5114/jhk/189745
Matteo Vandoni, Alessandro Gatti, Vittoria Carnevale Pellino, Caterina Cavallo, Agnese Pirazzi, Matteo Giuriato, Nicola Lovecchio
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引用次数: 0

Abstract

Children tend to enjoy high-intensity activities that involve both linear speed (LS) and change of direction (COD), essential for sports performance. However, the results of trends in LS and COD have not been consistent over time. Therefore, our study aimed to investigate the temporal trends in LS and COD performance among 11-13 year old Italian children/preadolescents over 25 years, while minimizing the effect of anthropometric characteristics. A total of 3884 students were recruited between 1990 and 2010 and performed 4 x 5-m shuttle run, 30-m sprint, and 60-m speed tests. A weighted linear regression was performed to analyze the overall temporal trends in BMI-adjusted speed tests. The results showed an increase in mean 4 x 5-m shuttle run time, indicating a decrease in COD ability, while LS performance remained relatively stable over time. These trends were consistent across genders and ages. Our study concludes that LS test performance remained steady over decades, while COD ability declined with sex-based variations despite participants' early age. Our results offer crucial data for interventions to improve children's physical fitness: in particular for COD performance. PE teachers and coaches should prioritize improving COD over LS to improve these abilities and prevent physical fitness decline.

意大利儿童线性速度和方向变化表现的时间趋势。
儿童倾向于喜欢涉及线性速度(LS)和方向变化(COD)的高强度活动,这对运动表现至关重要。然而,随着时间的推移,LS和COD的趋势结果并不一致。因此,我们的研究旨在调查意大利11-13岁儿童/前青少年在25年内LS和COD表现的时间趋势,同时尽量减少人体测量特征的影响。在1990年至2010年期间,共招募了3884名学生,并进行了4 × 5米穿梭跑、30米冲刺和60米速度测试。采用加权线性回归分析bmi调整速度试验的总体时间趋势。结果显示,平均4 × 5米的穿梭时间增加,表明COD能力下降,而LS性能随时间保持相对稳定。这些趋势在性别和年龄上都是一致的。我们的研究得出结论,几十年来,LS测试的表现保持稳定,而COD能力则随着性别的变化而下降,尽管参与者年龄很小。我们的研究结果为改善儿童身体素质的干预措施提供了重要的数据,特别是在COD表现方面。体育教师和教练员应优先提高COD,而不是LS,以提高这些能力,防止体质下降。
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来源期刊
Journal of Human Kinetics
Journal of Human Kinetics 医学-运动科学
CiteScore
4.80
自引率
0.00%
发文量
83
审稿时长
3 months
期刊介绍: The Journal of Human Kinetics is an open access interdisciplinary periodical offering the latest research in the science of human movement studies. This comprehensive professional journal features articles and research notes encompassing such topic areas as: Kinesiology, Exercise Physiology and Nutrition, Sports Training and Behavioural Sciences in Sport, but especially considering elite and competitive aspects of sport. The journal publishes original papers, invited reviews, short communications and letters to the Editors. Manuscripts submitted to the journal must contain novel data on theoretical or experimental research or on practical applications in the field of sport sciences. The Journal of Human Kinetics is published in March, June, September and December. We encourage scientists from around the world to submit their papers to our periodical.
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