Muscle mass can be determined using which of the following methods?

Muscle mass can indeed be assessed using triceps skinfold and arm circumference measurements. These methods offer a practical approach to estimating muscle mass and body fat distribution. The triceps skinfold measurement captures subcutaneous fat thickness, which can provide insights into overall body composition. Meanwhile, measuring arm circumference helps to estimate muscle size and mass by taking into account both muscle and fat in the arm.

When used together, these measurements can provide valuable information about an individual's nutritional status and muscle mass. This is particularly useful in clinical settings where monitoring changes in body composition is essential for assessing the nutritional needs of patients.

The other options, while relevant in their own contexts, do not serve as direct measures of muscle mass in the same comprehensive way. Skinfold calipers can provide some insights into body fat but do not give a direct measure of muscle mass alone. Basal Energy Expenditure (BEE) assesses energy needs rather than body composition. Urinary creatinine measurement can give an indirect indication of muscle mass since creatinine is a byproduct of muscle metabolism, but it is less precise and can be affected by hydration status and dietary factors, making it not as reliable for direct muscle mass assessment as the combination of triceps skinfold and arm circumference.