[HTML][HTML] Hypermobility of the first ray in ballet dancer
C Biz, L Favero, C Stecco… - Muscles, Ligaments and …, 2012 - ncbi.nlm.nih.gov
C Biz, L Favero, C Stecco, R Aldegheri
Muscles, Ligaments and Tendons Journal, 2012•ncbi.nlm.nih.gov… In all other groups, feet with a hypermobile first ray in both directions, or only in the dorso-medial
direction, were no more than 30% of the total. Therefore, when considering the “hypermobile”
category as including not only those with a first ray that can be moved 10 mm or more in the
dorsal direction, but also those individuals with a first ray mobility achieved only in the dorso-medial
(but not on the dorsal) direction, the sensitivity and specificity of the correlation between
hypermobility and hallux valgus exceed 81%. This confirms that hypermobility of the first …
direction, were no more than 30% of the total. Therefore, when considering the “hypermobile”
category as including not only those with a first ray that can be moved 10 mm or more in the
dorsal direction, but also those individuals with a first ray mobility achieved only in the dorso-medial
(but not on the dorsal) direction, the sensitivity and specificity of the correlation between
hypermobility and hallux valgus exceed 81%. This confirms that hypermobility of the first …
Summary
Hypermobility of the first ray, which is caused by an instability of the first metatarsocuneiform joint, is one of the factors that induces hallux valgus and can be caused by technical mistakes in ballet practice.
ncbi.nlm.nih.gov
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