... VB and Kakurin VJ. Potassium measurements during hypokinesia and ambulation in establishing potassium changes in trained and untrained subjects. Sports Medicine Training and Rehabilitation, ... h urine and fecal collection, with calculation of the percentage of K+ retained in the body. That is, absorption of K+ is equal to [(intake- excretion in urine and feces)/intake] and expressed ... tissue K+ levels, and higher K+ levels in plasma, urine and feces. Although, K+ absorption, muscle and bone K+ content, PA concentration, and K+ levels in plasma, urine and feces were...