Department of Physiology, Research Insitute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands.
Department of Cardiology, Research Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands.
Int J Sports Med. 2022 Feb;43(2):151-160. doi: 10.1055/a-1524-2611. Epub 2021 Aug 10.
Whilst the athlete's heart has been extensively described, less work has focused on the potential for elite athletes to demonstrate further cardiac remodelling upon an increase in training volume. Moreover, little work explored potential side-specific cardiac remodelling. Therefore, we examined the impact of an increase in training volume across 9-months in elite rowers on left- and right-sided cardiac structure, function and mechanics (i. e. longitudinal, radial and circumferential strain, twist and strain-volume loops). As part of the preparations to the 2012 Olympic Games, twenty-seven elite rowers (26.4±3.7years, 19 male) underwent echocardiography prior to and post (9 months) an increase in training volume (24 to 30-35 h weekly). Training increased left ventricular structure, including wall thickness, diameter, volume, mass and LV twist (all p<0.05). Female rowers demonstrated larger adaptation in left ventricular diameter and mass compared to male rowers (both p<0.05). No changes were observed in other measures of left ventricular function in both sexes (all p>0.05). The 9-month intervention showed no change in right ventricular/atrial structure, function or mechanics (all p>0.05). In conclusion, our data revealed that 9-month increased training volume in elite rowers induced left-sided (but not right-sided) structural remodelling, concomitant with an increase in left ventricular twist, with some changes larger in women.
虽然运动员心脏已经被广泛描述，但对于精英运动员在增加训练量时是否会进一步表现出心脏重塑的研究较少。此外，很少有研究探讨潜在的特定于心室的心脏重塑。因此，我们研究了在 9 个月的时间里，精英赛艇运动员增加训练量对左、右心室结构、功能和力学（即纵向、径向和环向应变、扭转和应变-容积环）的影响。作为 2012 年奥运会准备工作的一部分，27 名精英赛艇运动员（26.4±3.7 岁，19 名男性）在增加训练量（从每周 24 小时增加到 2012 年奥运会准备工作的一部分，27 名精英赛艇运动员（26.4±3.7 岁，19 名男性）在增加训练量（从每周 24 小时增加到 24 小时到每周 30-35 小时）前后接受了超声心动图检查。训练增加了左心室结构，包括壁厚度、直径、体积、质量和 LV 扭转（均 p<0.05）。与男性赛艇运动员相比，女性赛艇运动员的左心室直径和质量的适应性更大（均 p<0.05）。男女两性的左心室功能的其他指标均未观察到变化（均 p>0.05）。9 个月的干预对右心室/心房结构、功能或力学均无变化（均 p>0.05）。总之，我们的数据表明，9 个月的精英赛艇运动员增加训练量导致左心室（而不是右心室）结构重塑，同时左心室扭转增加，女性的变化更大。
