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/ˈbaɪsɪkəl ˌsɪndroʊm/ Definition: A non-medical, informal term describing a change in the appearance of the lower body—particularly the thighs—often associated with regular cycling, in which increased muscle tone and fat reduction in the inner thigh area may result in a visible gap between the thighs. The term is most commonly used in reference to female cyclists. Usage note: “Bicycle syndrome” is not a clinically recognized condition but rather a colloquial expression used in fitness and aesthetic contexts
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