Contribution of different strength determinants on distinct phases of Olympic rowing performance in adolescent athletes

Abstract

Aerobic metabolism dominates Olympic rowing, but research on the relative contribution of strength and power demands is limited. This study aimed to identify the contribution of different strength determinants for distinct phases of rowing ergometer performance. The crosssectional analysis comprised of 14 rowing athletes (4 female, 10 male, age: 18.8 ± 3.0y, 16.9 ± 2.2y). Measurements included anthropometrics, maximal strength of leg press, trunk extension and flexion, mid-thigh pull (MTP) and handgrip strength, VO 2 max, and a 2000 m time trial, where peak forces at the start, middle and end phase were assessed. Additionally, rate of force development (RFD) was assessed during the isometric leg press and MTP with intervals of 150, 350 ms and 150, 300 ms, respectively. Stepwise regression models for ergometer performance showed that the start phase was mainly explained by maximal trunk extension and RFD 300 ms of MTP (R 2 = 0.91, p < 0.001) and the middle section by VO 2 max, maximal leg press strength and sitting height (R 2 = 0.84, p < 0.001). For the end phase, a best fit was observed for trunk flexion, RFD 350 ms of leg press, body height and sex (R 2 = 0.97 p < 0.001), whereas absolute VO 2 max, trunk flexion and sex explained variance over the entire 2000 m time trial (R 2 = 0.98, p < 0.001). It appears that for the high acceleration in the start phase, force transmission through maximum strength for trunk extension is essential, while fast power production along the kinetic chain is also relevant. Additionally, the results support that maximal force complements the reliance on VO 2 max. Further intervention studies are needed to refine training recommendations.

Effects of Specific Training Using a Rowing Ergometer on Sport Performance in Adolescents

“…If we focus on the sport of rowing in relation to muscular strength, studies analyzing the influence of aerobic capacity on athlete performance are predominantly prevalent across various disciplines, including Olympic rowing [21] with research addressing the issue of the relative contribution and demands of muscular strength and power only being very limited [2]. In this sense, recent studies have shown how important muscle strength is during the initial phase of rowing, when the athlete is subjected to high levels of acceleration while extending the upper body [2,5].…”