Egan-Shuttler Julian D, Edmonds Rohan, Eddy Cassandra, O'Neill Veronica, Ives Stephen J
Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, USA.
Department of Exercise Science and Pre-Health Professions, Creighton University, Omaha, NE, USA.
Int J Exerc Sci. 2019 Jan 1;12(6):233-244. doi: 10.70252/YNWB9446. eCollection 2019.
Recently, rowing power has been shown to be a key determinant of rowing performance. However, rowing power testing can vary greatly, and is not standardized. Here we sought to evaluate rowing power over a 15 sec rowing test utilizing a stroke-by-stroke analysis before and after 4 weeks of training in youth rowers.
18 adolescent male rowers were assigned to complete either 4 weeks of plyometric training (PLYO, n=9), or steady state cycling (Control, n=9), for 30 minutes before on water training three days/week. Each group was matched for training volume. Peak power (PP) was assessed via a 15 sec maximal rowing ergometer test. Using the Ergdata mobile app, PP, peak force (PF), average force (AF), drive speed (DS), and stroke at which PP was achieved (PPstroke) were measured and recorded for later offline analysis.
Before training PP, PF, AF and DS did not differ between groups. After training, PP trended towards a significant difference between groups PLYO and CON (569±75 v. 629±51 Watts, control v. PLYO, p=0.08). Stroke-by-stroke analysis indicated more power was produced over the test following training (p<0.05), but no group differences existed. There was also a trend towards PLYO achieving PP earlier in the test (7.7±0.9 to 6.9±0.9 strokes, p=0.08). Finally, DS during the test was significantly increased for PLYO after training (p<0.05).
This novel method of evaluating rowing power was able to detect changes in rowing power indices, providing coaches with a cost effective method of evaluating responses to rowing training.
最近,划船功率已被证明是划船成绩的关键决定因素。然而,划船功率测试差异很大,且未标准化。在此,我们试图通过对青少年划船运动员进行4周训练前后的逐桨分析,来评估15秒划船测试中的划船功率。
18名青春期男性划船运动员被分配完成4周的增强式训练(PLYO,n = 9)或稳态骑行(对照组,n = 9),每周三天水上训练前进行30分钟训练。每组训练量匹配。通过15秒最大划船测力计测试评估峰值功率(PP)。使用Ergdata移动应用程序,测量并记录PP、峰值力(PF)、平均力(AF)、驱动速度(DS)以及达到PP时的划桨次数(PPstroke),以供后续离线分析。
训练前,两组之间的PP、PF、AF和DS无差异。训练后,PLYO组和对照组之间的PP有显著差异趋势(569±75瓦对629±51瓦,对照组对PLYO组,p = 0.08)。逐桨分析表明,训练后测试期间产生了更多功率(p<0.05),但组间无差异。PLYO组在测试中也有更早达到PP的趋势(7.7±0.9次划桨至6.9±0.9次划桨,p = 0.08)。最后,训练后PLYO组测试期间的DS显著增加(p<0.05)。
这种评估划船功率的新方法能够检测划船功率指标的变化,为教练提供一种经济有效的评估划船训练反应的方法。