Abstract
There is an attempt in this paper to affirm a "new" ("old") paradigm on physical culture as a professional and social activity and its corresponding scientific discipline in a logical, ontological, epistemological and methodological way. For defining science/sciences on physical culture, three elements are necessary: Name (term of profession), Native idea (genus proximum) and Structure of science. The name (term of the profession) is "PHYSICAL CULTURE", ("Physical" - natural ability of moving; "culture" - appropriate human activity). Native idea (genus proximum) of physical culture is physical ACTivity and its differentia specifica is determined by its aim – welfares to be realized on human organism (developing aspects in physical education; maximum achievements in sport; optimum aspects in recreation). Since it has structurally been "established" by several sciences, it is always said in plural – "SCIENCES ON physical culture". Sciences in our field are INTER-DISCIPLINARY, because different scientific disciplines have been used in studying appropriate human activity. Structure of Sciences on physical culture consists of three groups of scientific disciplines: a) ESSENCE OF SCIENCES ON PHYSICAL CULTURE; b)INTERDISCIPLINARY SCIENTIFIC FIELDS; c) CLOSE PROFESSIONAL SCIENTIFIC FIELDS.