The study recommends that patients get a daily amount of 1.4 to 1.5 grams of protein per kilogram of body weight to help renew and repair the bone marrow. Iron and Bone Marrow Function A key function of bone marrow is to produce red blood cells -- the iron-containing cells that carry oxygen to every part of your body.
A cross-country mountain biker on a trail in Utah. Cross-country (XC) cycling is the most common discipline of mountain biking.Cross-country cycling became an Olympic sport in 1996 and is the only form of mountain biking practiced at the Olympics.ross-country bicycles are some of the lightest mountain bikes, typically between 7 and 16 kilograms (15 and 35 lb).
Cross country (XC) bikes: 1  9 kgs. 2  hardtail (front suspension only) usually 80-100mm front suspension (air). 3  very steep head tube angle. 4  carbon or aluminium. 5  gears: 1x11, 3x10.6  29, 27.5, 26 inch wheels. 7  will allow you do 80km rides across mountains and do incredible ascends.8  photo:ross country (XC) bikes: 1  9 kgs. 2  hardtail (front suspension only) usually 80-100mm front suspension (air). 3  very steep head tube angle. 4  carbon or aluminium. 5  gears: 1x11, 3x10. 6  29, 27.5, 26 inch wheels. 7  will allow you do 80km rides across mountains and do incredible ascends. 8  photo: