Minghelli Beatriz, Paulino Sara, Graça Sara, Sousa Inês, Minghelli Priscilla
School of Health Jean Piaget Algarve - Piaget Institute - Algarve, Portugal.
National Traumato-Orthopedics Institute - Avenida Brasil, 500 - Cep: 20940-070 - Rio de Janeiro - RJ - Brasil.
Rev Assoc Med Bras (1992). 2019 Jul 22;65(6):810-817. doi: 10.1590/1806-9282.65.6.810.
Time-motion analysis has been used to provide detailed insight into surfers' performance. This study evaluated surfers' activity times at the Portuguese surfing championship in order to account for the time spent in each surfing activity.
Eighty-seven individually recorded videos of surfers were analyzed, showing their activity over the entire heat, and video analysis software was used to obtain each surfer's activity profile in the competition.
The results breakdown by time percentage show that the surfers were paddling 50.9% of the time, sprint paddling for wave 1.9%, were stationary 34.1% of the time, wave riding 3.7%, and involved in miscellaneous activities (e.g., duck diving, board recovery, etc.) 9.4% of the total time. Average times spent in each surfing activity were 18.6 seconds for paddling, 2.9 seconds for sprint paddling for a wave, 21.7 seconds for the stationary period, 11.5 seconds for wave riding, and 6.9 seconds for miscellaneous activities.
The data revealed that the most performed heat activity was paddling, allowing us to conclude that surfing is basically a long-arm paddling activity and that this activity constitutes a specific surfing competition demand, which in turn means that individual surfer's data can be used as a starting point for the development of tailored conditioning training programs.
时间动作分析已被用于深入了解冲浪者的表现。本研究评估了葡萄牙冲浪锦标赛中冲浪者的活动时间，以统计每项冲浪活动所花费的时间。
分析了87个单独录制的冲浪者视频，展示了他们在整个比赛过程中的活动情况，并使用视频分析软件获取了每位冲浪者在比赛中的活动概况。
按时间百分比细分的结果显示，冲浪者划水时间占50.9%，冲刺划水以赶上浪的时间占1.9%，静止时间占34.1%，乘浪时间占3.7%，参与其他活动（如潜水、找回冲浪板等）的时间占总时间的9.4%。每项冲浪活动的平均时间分别为：划水18.6秒，冲刺划水以赶上浪2.9秒，静止期21.7秒，乘浪11.5秒，其他活动6.9秒。
数据显示，比赛中最常进行的活动是划水，这使我们得出结论，冲浪基本上是一项长时间的手臂划水活动，并且这项活动构成了冲浪比赛的一项特定要求，这反过来意味着单个冲浪者的数据可作为制定量身定制的体能训练计划的起点。
