Effects of Lawn Tennis Association mini tennis as task constraints on children's match-play characteristics
Effects of Lawn Tennis Association mini tennis as task constraints on children's match-play characteristics
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DOI：
10.1080/02640414.2016.1261179
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发表时间：
2017-01-01
影响因子：
3.4
通讯作者：
Stone, Joseph Antony
中科院分区：
文献类型：
--
作者：
Fitzpatrick, Anna;Davids, Keith;Stone, Joseph Antony
草地网球协会的迷你网球（MT）是网球的改良版，由渐进式阶段组成；然而，很少有人尝试评估MT如何塑造绩效行为。本文以48名青少年网球运动员为研究对象，研究了MT对儿童对局行为产生的影响。使用符号分析系统，在4个网球阶段（MT Red, MT Orange， MT Green和Full Ball）拍摄和编码1010个比赛点的表现。记录的表现变量包括回合长度、第一发球百分比和击球类型，以便分析阶段间的比较。结果显示了一系列特定的适应在各个阶段的打球特征，包括回合长度，击球种类和发球成功。MT Red回合（7.36 +/- 6.06）比Full Ball回合（3.83 +/- 2.40）要长，并且MT Red阶段的正手比例（66.40 +/- 8.49%）高于Full Ball阶段（45.96 +/- 6.47%）。研究结果表明，MT阶段比Full Ball任务约束能够为儿童提供更多发展技能的机会，并激发出不同的配对游戏特征。因此，教练在设计训练环境以促进年轻网球运动员的学习时，应该考虑突发适应的本质。
The Lawn Tennis Association's mini tennis (MT) is a modified version of tennis consisting of progressive stages; however, there have been few attempts to evaluate how MT might shape performance behaviours. Here, we examine effects of playing MT on the emergence of children's match-play behaviours in 48 junior tennis players. Performance in 1010 match-play points were filmed and coded across 4 tennis stages (MT Red, MT Orange, MT Green and Full Ball), using a notational analysis system. Recorded performance variables included rally length, first serve percentage and shot type, for the purpose of analysing inter-stage comparisons. Results showed a series of specific adaptations to playing characteristics across the stages, including rally length, shot variety and serve success. MT Red rallies (7.36 +/- 6.06) were longer than Full Ball rallies (3.83 +/- 2.40), and a higher percentage of forehands were played at MT Red (66.40 +/- 8.49%) than at Full Ball stage (45.96 +/- 6.47%). Findings suggested that MT stages can afford children more opportunities to develop their skills and elicit different match-play characteristics than Full Ball task constraints. Coaches, therefore, should consider the nature of emergent adaptations when designing practice environments to facilitate learning in young tennis players.