title: Interval training.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000293:Adolescent; D000328:Adult; D000368:Aged; D004734:Energy Metabolism; D005260:Female; D006801:Humans; D007773:Lactates / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000378:metabolism; D010725:Phosphocreatine / Q000378:metabolism; D010806:Physical Education and Training / Q000379:methods*; D013178:Sports Medicine; D013997:Time Factors
chemical_list: D007773:Lactates; D010725:Phosphocreatine; D000255:Adenosine Triphosphate