Sunita Williams and Butch Wilmore will undergo a 45-day rehabilitation program to adjust to Earth's gravity after their return from space. This program includes ambulation, muscle strengthening, proprioceptive exercise, and cardiovascular conditioning. Williams now holds the record for total spacewalking time by a female astronaut. They traveled over 121 million miles during their mission.source https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/sunita-williams-butch-wilmore-to-undergo-45-day-rehabilitation-program-know-all-about-it/articleshow/119185801.cms