physical strength;  muscle strength
 sit-up;  abdominal muscles;  abs
 weight training;  muscle training
 muscle-brain;  meathead;  hot-blooded idiot;  person who charges in before thinking
 muscular;  lean (of a company's operations, etc.)
 rebar;  (iron) reinforcing bar;  reinforcing steel;  reinforced concrete
 muscles and bones;  body build;  physique;  cartilage
 heart attack;  myocardial infarction
 sphincter;  sphincter muscle;  constrictor
 reinforced concrete;  ferroconcrete
 muscle fiber;  muscle fibre
 artificial muscle;  synthetic muscle
 meathead;  muscle head;  person who is obsessed with bodybuilding
 muscle training;  resistance training;  strength training
 rectus abdominis muscle;  abdominal rectus muscle
 sit-ups;  exercise to strengthen one's abdominal muscles
 femoral muscle;  thigh muscle
 acute myocardial infarction;  AMI
 muscles of the back;  back muscles
 reinforced concrete;  ferroconcrete
 muscular beauty;  beauty of a muscular body
 muscle cell;  muscle cells
 ocular muscles;  muscles that control eye movement
 amyotrophic lateral sclerosis;  ALS;  Lou Gehrig's disease
 reinforced concrete construction
 physical or manual labor;  physical or manual labour
 sternocleidomastoid muscle;  sternomastoid
 abdominal external oblique muscle
 inflammation of a muscle;  myositis
 muscle rupture;  myorrhexis
 transverse abdominal muscle;  transversus abdominis muscle
 amyotrophia;  muscle atrophy;  disuse atrophy
 muscle tone;  muscular tone;  myotonia
 extraocular muscle;  external eye muscle
 necrotizing fasciitis;  necrotising fasciitis;  flesh-eating bacteria syndrome
 pelvic floor muscle;  pubococcygeal muscle;  Kegel muscle
 mitochondrial encephalomyopathy
 muscle spasm;  myospasm;  cramp
 electric muscle stimulation;  EMS
 neuromuscular junction;  myoneural junction
 erector pili (muscle fiber attached to a hair follicle);  erectores pilorum
 sphincter muscle of urinary bladder
 amyotrophy (muscular atrophy)
 stirrup (in reinforced concrete construction)
 hoop;  tie hoop;  lateral tie
 pseudohypertrophy of muscle
 muscle-contraction headache;  tension headache
 suspensory muscle of the duodenum;  musculus suspensorius duodeni
 delayed onset muscle soreness;  DOMS
 main reinforcement (in a reinforced-concrete structure)
 erector pili (muscle fiber attached to a hair follicle);  erectores pilorum
 pterygoid muscle;  alary muscle
 muscular type (Kretschmer's typology);  athletic type
 sphincter muscle of the pupil;  sphincter pupillae
 steel-framed reinforced concrete construction
 adductor muscle (of a bivalve)