Mentor/s
Dr. Matthew Moran
Participation Type
Poster
Abstract
Due to the high incidence of running-related injury, biomechanical flaws of the running stride must be investigated.¹ RunScribe™ footpods are light-weight devices that clip onto the shoe and record kinematic variables with each step.² PURPOSE: This study will investigate the influence of footpod placement on the validity of RunScribe™ output compared to hi-speed video analysis. METHOD: Ten collegiate distance runners (6 female, 4 male, 20.9yo ± 0.7yo; 170.2cm ± 6.9cm; 61.4kg ± 7.9 kg) volunteered to participate and granted informed consent. Participants were fit with left-sided body-markers along the line of the achilles tendon and superior-inferior axis of the shoe’s heel-counter, a RunScribe™ on both the left laces and heel, and ran for two, 5-min sessions on a treadmill (Woodway, Desmo). High-speed cameras (Casio EX-10, 210 Hz) recorded in the sagittal and frontal planes. The last 21 strides were analyzed using Kinovea computer software and compared to data downloaded from RunScribe™ for stride-length, stride-rate, ground-contact-time (GCT), pronation-excursion, and max pronation-velocity. Validity and reliability of measurements between RunScribe™ and video were assessed with SPSS and intraclass correlation coefficients, respectively. RESULTS: There was a strong correlation between data from both footpod locations and Kinovea for all sagittal plane variables tested, specifically GCT and stride-rate. There is a much stronger relationship between the heel and Kinovea (r=0.905) than the laces and Kinovea (r=0.204) for max pronation-velocity. CONCLUSION: RunScribe™ is an accurate tool in assessing GCT, stride-rate, and stride-length. Heel-placement will likely output more accurate frontal plane data than the laces.
College and Major available
Exercise Science UG
Location
University Commons
Start Day/Time
4-21-2017 1:00 PM
End Day/Time
4-21-2017 3:00 PM
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Influence of Placement on the Validity of RunScribe™
University Commons
Due to the high incidence of running-related injury, biomechanical flaws of the running stride must be investigated.¹ RunScribe™ footpods are light-weight devices that clip onto the shoe and record kinematic variables with each step.² PURPOSE: This study will investigate the influence of footpod placement on the validity of RunScribe™ output compared to hi-speed video analysis. METHOD: Ten collegiate distance runners (6 female, 4 male, 20.9yo ± 0.7yo; 170.2cm ± 6.9cm; 61.4kg ± 7.9 kg) volunteered to participate and granted informed consent. Participants were fit with left-sided body-markers along the line of the achilles tendon and superior-inferior axis of the shoe’s heel-counter, a RunScribe™ on both the left laces and heel, and ran for two, 5-min sessions on a treadmill (Woodway, Desmo). High-speed cameras (Casio EX-10, 210 Hz) recorded in the sagittal and frontal planes. The last 21 strides were analyzed using Kinovea computer software and compared to data downloaded from RunScribe™ for stride-length, stride-rate, ground-contact-time (GCT), pronation-excursion, and max pronation-velocity. Validity and reliability of measurements between RunScribe™ and video were assessed with SPSS and intraclass correlation coefficients, respectively. RESULTS: There was a strong correlation between data from both footpod locations and Kinovea for all sagittal plane variables tested, specifically GCT and stride-rate. There is a much stronger relationship between the heel and Kinovea (r=0.905) than the laces and Kinovea (r=0.204) for max pronation-velocity. CONCLUSION: RunScribe™ is an accurate tool in assessing GCT, stride-rate, and stride-length. Heel-placement will likely output more accurate frontal plane data than the laces.
