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).
To me, mountain biking is mountain biking. Your on a trail riding over all different terrain, grass, sand, rock gardens, big rocks, drop offs everything on that trail your riding, whether its considered XC or single track..Maybe there is a real difference and I just dont know about it but when I go out to ride I am going mountain biking..eah some bikes are more considered XC bikes or singletrack bikes but to me they can and should be able to handle both because no matter what there most likely going to run into the some of the same terrain. Guess I just never really understood the difference or thought about it like this. 06-26-2011 #2.