Variations in muscle electrolyte composition due to sampling and to aging.
D000375:Aging; D004573:Electrolytes; D009132:Muscles / Q000378:metabolism*; D009142:Musculoskeletal Physiological Phenomena; D011188:Potassium / Q000032:analysis*
D004573:Electrolytes; D011188:Potassium
AGING/effects; MUSCLES/metabolism; POTASSIUM/determination