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[Does a Temporary Leg Length Discrepancy have an Influence on Upper Body Posture and Lower Jaw Position in
D Ohlendorf1, M Himmelreich2, C Mickel3
1Institut für Arbeitsmedizin, Sozialmedizin und Umweltmedizin, Goethe-Universität Frankfurt am Main, Frankfurt/Main.
Summary
Competitive athletes with strong postural muscles can quickly compensate for leg length discrepancies. This study found significant correlations between induced leg length discrepancies and changes in body posture and jaw position.
Area of Science:
- Biomechanics
- Sports Medicine
- Craniomandibular research
Context:
- Investigates the link between the musculoskeletal system and the craniomandibular system in athletes.
- Examines upper body posture and lower jaw position.
- Utilizes induced leg length discrepancy (LLD) to study compensatory mechanisms.
Purpose:
- To examine the linkage between the musculoskeletal and craniomandibular systems in competitive athletes.
- To investigate the effects of induced leg length discrepancy on body posture and jaw position.
Summary:
- 34 competitive athletes were studied with induced leg length discrepancies (1 and 3 cm).
- 3D back scanning and electronic registration devices measured body posture and condylar position.
- Significant correlations were found between LLD and changes in trunk, shoulder, pelvis height, and condyle position.
Impact:
- Demonstrates functional correlations within the musculoskeletal system via muscular, neurological, and fascial pathways.
- Highlights the role of strong postural muscles and the sensorimotor system in rapid musculoskeletal compensation.
- Supports the theory of an "ascendant chain" from limb to jaw, influenced by the somatic nervous system.
