title: Exercise-induced pain, stiffness, and tubular aggregation in skeletal muscle.
abstract: The case is described of a 36 year old man with exercise-induced pain, stiffness, and tubular aggregation in skeletal muscle. Persistent CPK elevation and a normal forearm ischaemic exercise test were demonstrated. Electromyography was normal. Muscle biopsy showed aggregates of tubular structures in most fibres by histochemical and ultrastructural analysis. A relationship of this syndrome to known defects in muscle energy metabolism is postulated.
mesh_terms: D000328:Adult; D003402:Creatine Kinase / Q000097:blood; D006801:Humans; D008297:Male; D008870:Microtubules / Q000648:ultrastructure*; D009120:Muscle Cramp / Q000473:pathology; D009132:Muscles / Q000473:pathology; D009468:Neuromuscular Diseases / Q000473:pathology*; D010146:Pain / Q000473:pathology; D005082:Physical Exertion
chemical_list: D003402:Creatine Kinase