This is very unusual for any one to have blood in the urine. Menstruation can cause a positive urine test. If you are not menstruating, then it means there is a source of bleeding within your bladder or ureter or kidney. This requires verification with additional urinalyses and then follow up testing if still positive. In brief: Blood in urine.
The FISA (International Rowing Federation) minimum weight for men's crew coxswains is 55 kilograms (121.25 pounds) in racing uniform. For Women's and Mixed Crews, the weight minimum is 50 kilograms (110.23 pounds) in racing uniform.he minimum weights for a cox depend on the gender and age of the crew they are coxing. If the crew is racing at Junior 15 or younger (J15), then the minimum weight of the cox is 45 kg (99.21 lbs).
The importance of effort can be seen by looking at how many calories you burn while rowing on water. Rowing on water vigorously burns 844 calories per hour if you weigh 155 pounds, according to a study by the Wisconsin Department of Health and Family Services. The same person burns 493 calories rowing moderately and 211 calories rowing lightly. Heavier people burn more calories. Rowing vigorously burns more calories than running at a pace of 9 minutes per mile, which is tied for seventh in the Harvard study. Rowing moderately burns fewer calories than running at a pace of 12 minutes per mile. Rowing lightly burns fewer calories than bowling and slow dancing.