Jan Wilke1, Tobias Engeroff2, Frank Nürnberger3, Lutz Vogt2, Winfried Banzer2. 1. Department Sports Medicine, Institute of Sports Sciences, Goethe University Frankfurt, Ginnheimer Landstraße 39, 60487, Frankfurt am Main, Germany. wilke@sport.uni-frankfurt.de. 2. Department Sports Medicine, Institute of Sports Sciences, Goethe University Frankfurt, Ginnheimer Landstraße 39, 60487, Frankfurt am Main, Germany. 3. Department of Anatomy (II), Goethe University Frankfurt, Frankfurt am Main, Germany.
Abstract
PURPOSE: Recent research indicates that the skeletal muscles of the human body do not function as independent actuators. Instead, they seem to be linked by connective tissue forming myofascial chains. While the existence of such meridians has been demonstrated for the ventral and the dorsal side of the body, no data are available for morphological fusion of lateral muscles. This study aimed to provide evidence for the inferior part of the lateral myofascial chain. METHODS: Fourteen legs (7 embalmed cadavers, four ♂, 86 ± 7 years) were dissected to reveal a potential myofascial continuity between the fibularis longus muscle, more detailed, its fascia, and the iliotibial tract (ITT). Three investigators judged the general existence as well as the degree and characteristics of the continuity. If an anatomical continuity was evident, strain was applied to both structures in order to evaluate the tissues' ability for tensile transmission. RESULTS: An indirect connection between the iliotibial tract and the fascia of the fibularis longus muscle was found: in all examined legs, the ITT fused strongly with the crural fascia. The latter was hardly separable from the fibularis longus fascia. Application of strain to the ITT caused local movement in the crural fascia and the underlying fascia of the fibularis muscle. CONCLUSIONS: The iliotibial tract fuses firmly with the crural fascia and the degree of continuity suggests that moderate amounts of strain might be transmitted. However, biomechanical studies precisely quantifying this tensile transmission are warranted in order to estimate the relevance of the linkage for the locomotor system.
PURPOSE: Recent research indicates that the skeletal muscles of the human body do not function as independent actuators. Instead, they seem to be linked by connective tissue forming myofascial chains. While the existence of such meridians has been demonstrated for the ventral and the dorsal side of the body, no data are available for morphological fusion of lateral muscles. This study aimed to provide evidence for the inferior part of the lateral myofascial chain. METHODS: Fourteen legs (7 embalmed cadavers, four ♂, 86 ± 7 years) were dissected to reveal a potential myofascial continuity between the fibularis longus muscle, more detailed, its fascia, and the iliotibial tract (ITT). Three investigators judged the general existence as well as the degree and characteristics of the continuity. If an anatomical continuity was evident, strain was applied to both structures in order to evaluate the tissues' ability for tensile transmission. RESULTS: An indirect connection between the iliotibial tract and the fascia of the fibularis longus muscle was found: in all examined legs, the ITT fused strongly with the crural fascia. The latter was hardly separable from the fibularis longus fascia. Application of strain to the ITT caused local movement in the crural fascia and the underlying fascia of the fibularis muscle. CONCLUSIONS: The iliotibial tract fuses firmly with the crural fascia and the degree of continuity suggests that moderate amounts of strain might be transmitted. However, biomechanical studies precisely quantifying this tensile transmission are warranted in order to estimate the relevance of the linkage for the locomotor system.
Authors: Kimberley J Norton-Old; Anthony G Schache; Priscilla J Barker; Ross A Clark; Simon M Harrison; Christopher A Briggs Journal: Clin Anat Date: 2012-06-14 Impact factor: 2.414