Fig. 1From: The effect of calcium supplementation on calcium and bone metabolism during load carriage in women: protocol for a randomised controlled crossover trialOverview of the study design.Ca2+, calcium; Questionnaires: physical activity readiness questionnaire, menstrual history questionnaire, and Eating Attitudes Test – 26 item; Diaries: exercise and menstrual; DXA, dualenergy X-ray absorptiometry; \(\dot V\)O2max, maximal rate of oxygen uptake.Back to article page