Brisbane Broncos Rugby League Football Club, Queensland, Australia.
J Strength Cond Res. 2010 Nov;24(11):2979-83. doi: 10.1519/JSC.0b013e3181e72731.
This study investigated the physiological and skill demands of 'on-side' and 'off-side' games in elite rugby league players. Sixteen male rugby league players participated in 'on-side' and 'off-side' games. Both small-sided games were played in a 40- × 40-m playing area. The 'off-side' game permitted players to have 3 'plays' while in possession of the ball. Players were permitted to pass backward or forward (to an 'off-side' player). The 'on-side' game also permitted players to have 3 'plays' while in possession of the ball. However, players were only permitted to pass backward to players in an 'on-side' position. Heart rate and movement patterns (via global positioning system) were recorded continuously throughout both games. Data were collected on the distance covered, number of high-acceleration and velocity efforts, and recovery between efforts. Video footage was also taken to track the performance of the players. Post hoc inspection of the footage was undertaken to count the number of possessions and the number and quality of disposals. In comparison to 'on-side' games, 'off-side' games had a greater number of involvements ("touches"), passes, and effective passes. However, the cognitive demands of 'on-side' games were greater than 'off-side' games. 'Off-side' games resulted in a greater total distance covered, greater distance covered in mild and moderate accelerations, and greater distance covered in low, moderate, and high-velocity efforts. There were also a greater number of short duration recovery periods between efforts in 'off-side' games. The results of this study demonstrate that 'off-side' games provide greater physiological and skill demands than 'on-side' games. 'Off-side' games may provide a practical alternative to 'on-side' games for the development of skill and fitness in elite rugby league players.
本研究调查了精英英式橄榄球运动员在“正码”和“反码”比赛中的生理和技能需求。16 名男性英式橄榄球运动员参与了“正码”和“反码”比赛。两种小型比赛都在 40×40 米的比赛区域内进行。“反码”比赛允许球员在控球时有 3 次“触球”，球员可以向后或向前传球（给“反码”球员）。“正码”比赛也允许球员在控球时有 3 次“触球”，但球员只能向后传给处于“正码”位置的球员。整个比赛过程中，心率和运动模式（通过全球定位系统）都在持续记录。数据包括球员的跑动距离、高加速度和速度努力次数，以及努力之间的恢复。还拍摄了视频片段以跟踪球员的表现。对视频片段进行事后检查，以统计触球次数、传球次数和传球质量。与“正码”比赛相比，“反码”比赛的参与度（“触球”次数）、传球次数和有效传球次数更多。然而，“正码”比赛的认知要求高于“反码”比赛。“反码”比赛的总跑动距离更大，中低强度加速跑动距离更大，低、中、高强度速度努力跑动距离更大。此外，“反码”比赛中努力之间的短时间恢复周期也更多。本研究结果表明，“反码”比赛比“正码”比赛对球员的生理和技能有更高的要求。“反码”比赛可能为精英英式橄榄球运动员的技能和体能发展提供一种比“正码”比赛更实用的替代方案。
