| Autor: |
Dierickx EE; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Butler CR; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Huggins RA; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Zuk EF; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Mason LC; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Distefano LJ; Department of Kinesiology, University of Connecticut, Storrs, CT, USA., Casa DJ; Department of Kinesiology, University of Connecticut, Storrs, CT, USA. |
| Abstrakt: |
Carbon fiber insoles (CFIs) may benefit performance in elite athletes, however, their use in moderately active individuals has been adopted without evidence supporting such enhancements in this population. Fifteen male subjects performed vertical jump (VJ) and repeat treadmill sprint tests before and after a VO 2peak while wearing 1) CFIs and 2) control insoles (CON). Subjects completed a subjective survey regarding their perceived performance abilities for both conditions. There were no significant differences between CFIs and CON in VJ height, sprint distance, heart rate following sprints; and rate of oxygen consumption, perceived fatigue, and perceived exertion at 85% of maximal speed ( p > 0.05) during the VO 2peak . At maximal speed, although there was no difference between conditions in peak rate of oxygen consumption (95%CI [-4.85, 0.21]) and respiratory exchange ratio (95%CI [-0.01, 0.03]), CFIs resulted in a reduced level of perceived fatigue (95%CI [-1, 0]) and perceived exertion (95%CI [-2, 0]) compared to CON. Subjects subjectively reported increased feelings of " propulsion or explosiveness " ( p = 0.026) and being able to " perform better while jumping " ( p = 0.029) while wearing CFIs. Heightened perceptions of performance enhancements when wearing CFIs indicate, in the moderately active, perceptual benefits could be more influential for determining CFI use. |
