根据输入的英文段落，生成一句中文摘要，不超过100个字符。


A new study suggests that regular exercise may reduce the risk of developing severe COVID-19. The study found that people who regularly exercised had a significantly lower risk of hospitalization, ICU admission, and death compared to those who were inactive. The researchers recommend that individuals continue to engage in regular physical activity to protect themselves against severe COVID-19.
规律运动可减少严重 COVID-19 的风险：研究表明，定期参加身体活动的人比不运动的人患病需要住院、ICU入院或死亡的风险明显更低。研究建议个体继续进行规律的运动以保护自己免受严重 COVID-19 的威胁。