Unity and integrity of all organs in human body was the basis of Peter Lesgaft system of the pointed exercises for both physical development and intellectual, moral and aesthetic education.
Peter Lesgaft was born on 21 September 1837 in Saint Petersburg, the third son of a jeweler of German descent.
In 1872–1874 he supervised a group of Russian women for the first time allowed to employment in the Imperial Medical-Surgical Academy.
He also became known for publication of a descriptive history of sport in Europe and ancient Greece and an article on naturalistic gymnastics.
In 1875, he was sponsored by the Russian Military Ministry to spend two summers in Western Europe, studying the systems of physical education.