yán jiū / fā xiàn / yùn dòng liàng / yǔ / mǒu xiē / jí bìng / fēng xiǎn / cún zài / fù xiāng guān研究发现,运动量与某些疾病风险存在负相关。Research has found that exercise volume is negatively correlated with the risk of certain diseases.