Liu Wei-Nung, Feng An-Chieh, Hsu Chu-Yu, Liu Pang-Yen, Tsai Kun-Zhe, Zeng Huan-Chang, Lavie Carl J, Lin Gen-Min
Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan.
Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
J Sports Sci. 2023 Jun;41(12):1179-1186. doi: 10.1080/02640414.2023.2260626. Epub 2023 Oct 24.
The impact of mitral valve prolapse (MVP) and mitral regurgitation (MR) on physical performance has not been examined. Of 1,808 physically fit Asian military males, we compared the physical fitness between 62 subjects with MVP (MVP(+)) and 1,311 age- and anthropometrics-matched controls from the 1,746 participants without MVP (MVP(-)). MVP and MR grade were defined based on the American Society of Echocardiography criteria. Aerobic endurance capacity was evaluated by a 3000-m run and muscular endurance capacity was separately evaluated by 2-min sit-ups and 2-min push-ups. Analysis of covariance was used to determine the difference between groups. As compared to the MVP(-), the MVP(+) completed the 3000-m run test faster (839.2 ± 65.3 sec vs. 866.6 ± 86.8 sec, = 0.019), but did fewer push-ups (41.3 ± 3.92 vs. 48.0 ± 10.1, = 0.02) and similar sit-ups within 2 min. Of the MVP(+), those with any MR (trivial, mild or moderate) completed the 3000-m run test faster than those without MR (830.6 ± 61.7 sec vs. 877.2 ± 61.7 sec, = 0.02). Our findings suggest that in physically active Asian military males, the MVP(+) may have greater aerobic endurance capacity but lower muscular endurance capacity than the MVP(-). The presence of MR may play a role for the MVP(+) to have greater aerobic endurance capacity.
二尖瓣脱垂（MVP）和二尖瓣反流（MR）对身体机能的影响尚未得到研究。在1808名身体健康的亚洲男性军人中，我们比较了62名患有MVP的受试者（MVP(+)）与1746名未患MVP的参与者中1311名年龄和人体测量学相匹配的对照组（MVP(-)）之间的身体素质。MVP和MR分级根据美国超声心动图学会标准定义。有氧耐力能力通过3000米跑步进行评估，肌肉耐力能力分别通过2分钟仰卧起坐和2分钟俯卧撑进行评估。采用协方差分析来确定组间差异。与MVP(-)组相比，MVP(+)组完成3000米跑步测试更快（839.2±65.3秒 vs. 866.6±86.8秒，P = 0.019），但俯卧撑做得更少（41.3±3.92次 vs. 48.0±10.1次，P = 0.02），且2分钟内仰卧起坐次数相近。在MVP(+)组中，有任何程度MR（轻微、轻度或中度）的受试者完成3000米跑步测试比无MR的受试者更快（830.6±61.7秒 vs. 877.2±61.7秒，P = 0.02）。我们的研究结果表明，在身体活跃的亚洲男性军人中，MVP(+)组可能比MVP(-)组具有更强的有氧耐力能力，但肌肉耐力能力较低。MR的存在可能使MVP(+)组具有更强的有氧耐力能力。
