Wang Zhangmin, 69-year-old, and Hu Yingfu, 78-year-old, have a warm-up exercise. Wang, who loves running, started fitness training four decades ago and was soon joined by her husband. The couple has participated in more than 20 marathon competitions in various places, such as Beijing, Shanghai, Hong Kong and Wuxi. They are the oldest couple taking part in nationwide marathon competitions. [Photo/chinanews.com]