The use of gravity in isometric exercise.
D000328:Adult; D001794:Blood Pressure; D003214:Conditioning, Classical; D004553:Electric Conductivity; D004566:Electrodes; D004576:Electromyography; D006112:Gravitation; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000502:physiology*; D005082:Physical Exertion; D011674:Pulse