Case study: a jaw-protruding dental splint improves running physiology and kinematics
(Fallstudie: Eine über den Kiefer hinausragende Zahnschiene verbessert die Laufphysiologie und Kinematik)
Wearing an intraoral jaw-protruding splint could enhance respiratory function in clinical settings and eventually exercise performance.
Purpose:
The authors studied the acute effect of wearing a lower-jaw-forwarding splint at different protruding percentages (30% and 50%) across a wide range of running exercise intensities.
Methods:
A case study was undertaken with a highly trained and experienced 27-year-old female triathlete. She performed the same incremental intermittent treadmill running protocol on 3 occasions wearing 3 different intraoral devices (30% and 50% maximum range and a control device) to assess running physiological and kinematic variables.
Results:
Both the 30% and 50% protruding splints decreased oxygen uptake and carbon dioxide production (by 4%-12% and 1%-10%, respectively) and increased ventilation and respiratory frequency (by 7%-12% and 5%-16%, respectively) along the studied running intensities. Exercise energy expenditure (approximately 1%-14%) and cost (7.8, 7.4, and 8.0 J·kg-1·m-1 for 30%, 50%, and placebo devices, respectively) were also decreased when using the jaw-protruding splints. The triathlete`s lower limbs` running pattern changed by wearing the forwarding splints, decreasing the contact time and stride length by approximately 4% and increasing the stride rate by approximately 4%.
Conclusions:
Wearing a jaw-protruding splint can have a positive biophysical effect on running-performance-related parameters.
© Copyright 2022 International Journal of Sports Physiology and Performance. Alle Rechte vorbehalten.
Schlagworte: | Triathlon Langstreckenlauf Gerät Zahn Leistung Lauf Atmung O2-Aufnahme Laufökonomie |
---|---|
Notationen: | Ausdauersportarten Biowissenschaften und Sportmedizin |
Tagging: | Kieferschiene |
DOI: | 10.1123/ijspp.2021-0338 |
Veröffentlicht in: | International Journal of Sports Physiology and Performance |
Veröffentlicht: |
2022
|
Jahrgang: | 17 |
Heft: | 5 |
Seiten: | 791-795 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |