Fitness levels in elite oarsmen decreased significantly every 10 years after Olympic competition even though they continued exercising three to four times a week. Their efforts to remain fit may have slowed the physiological changes that come with age but did not exempt them from the steady downhill course.
SOURCE: "A 20-yr Longitudinal Study of Olympic Oarsmen," Frederick C. Hagerman, et. al. Medicine & Science in Sports & Exercise: September 1996 | GRAPHIC: By Brenna Maloney and Laura Stanton, The Washington Post - February 13, 2007