HPS Graduate Student Conference Papers

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    Accuracy of Moov Now™ exercise performance measures in recreational swimmers
    (Wichita State University, 2019-04-26) Cossell, Alexus J.; Pfluger, Edward; Heppner, Megan; VanRavenhorst-Bell, Heidi A.
    INTRODUCTION: Wearable fitness technology has become an increasingly popular tool to measure activity levels and performance measures across multiple sports. As more users rely on these devices to measure and report activity, the accuracy of these devices require in-depth study and validation. The focus of traditional validation research of wearable fitness technology focuses on elite competitive populations, however as the general population's consumption of these devices expands, it is important to reveal the accuracy of wearable fitness technology on recreational users. PURPOSE: The purpose of this study is to assess the accuracy of the Moov Now, a wearable fitness motion sensor, in the detection of total distance swam and number of stroke cycles in a 200m, free-style swim on recreational users. METHODS: 40 healthy recreational swimmers successfully completed one 200m, free-style lap swim while wearing the Moov Now. Moov Now recorded total stroke count and total swim distance. Measures were compared to manual counts from recorded real-time video. RESULTS: A one-sample t-test (p = 0.05, 95% CI) revealed no significant difference (p = .442) between the known distance of 200m and total swim distance reported by the Moov Now. On average, however, the Moov Now underestimated swim distance by 1.56%. An Intraclass Correlation Coefficient (ICC) (95% CI) determined the Moov Now stroke count to be moderately accurate (.618) compared to real-time video manual count. Additionally, the Moov Now on average underestimated total stroke count by 4.03%. CONCLUSION: Findings from this study suggest that the Moov Now may be an accurate and reliable device in measuring total freestyle swim distance but may not be accurate in detecting freestyle stroke count during a 200m swim when worn by recreational swimmers.
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    Concurrent validity of heart rate measures using a wrist worn activity tracker during treadmill walking
    (Wichita State University, 2018-04-27) Shargawi, Anas A.; Hafez, Khaled A.; VanRavenhorst-Bell, Heidi A.; Amick, Ryan Zackary
    Introduction: Wearable technology devices are becoming increasingly popular. Many of these devices offer features allowing users to monitor health related biometric information. One biometric variable commonly measured is heart rate (HR). However, different types of wearable devices may use different technologies to measure HR. Therefore, it is important for end-users to be informed and understand if these devices report accurate information. Purpose: The purpose of this study was to determine the concurrent validity of HR measures using the IP65 activity monitor compared to a validated HR monitor. Method: Eighteen subjects (25.2±3.8 years) volunteered to participate in this study. After collecting subject anthropometric data (height, weight), each subject was fitted with a validated HR monitor (Polar T31) and the IP65 activity monitor. Subjects then completed a 5-minute warm-up on the treadmill, walking at a self-selected pace. For the testing protocol, subjects were instructed to walk on the treadmill at a self-selected moderate pace for 5-minutes. HR data from both devices were sampled at 12Hz during the final 3-minutes of the protocol. Results: Mean HR recorded from the IP65 activity monitor and Polar T31 was 97.6±11.92 and 105.3±9.16, respectively. Pearson correlation coefficient indicates that there was no statistically significant correlation between the IP65 activity monitor and the validated Polar T31 HR Monitor (p = 0.279), r = -0.05. Conclusion: The IP65 activity tracker does not demonstrate concurrent validity when compared to a validated HR monitor. Such findings warrant continued investigation of each biometric variable provided by the IP65 and other wearable devices.
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    Comparing predictable and unpredictable instability in dual-task balance training
    (Wichita State University, 2016-04-29) Anderson, Cathy; Patterson, Jeremy A.
    Balance training (BT) is a vital component of many exercise programs, but actual prescriptions for exercise frequency, intensity, time and type have yet to be defined. This study compared one BT session on two balance platforms: a predictably unstable tilt board (roll movement), and an unpredictably unstable shake board (roll, pitch, and yaw movements), to see if a relationship exists between the type of platform used and measurable balance improvement. A concurrent task was added to increase cognitive complexity. Methods: Twenty healthy young adults were randomly assigned to stand on the tilt board or the shake board while performing Bal-A-Vis-X ball-bouncing exercises. Each subjects balance (overall stability, anteroposterior stability, mediolateral stability) was measured before and after BT using a Biodex Balance System SD. Results: On average, each platform group showed balance improvement. The evidence failed to support the hypothesis of a significant or meaningful difference between the platforms.
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    Effectiveness of cross taping as a therapy for delayed muscle soreness
    (Wichita State University, 2016-04-29) Alfrisany, Alla; Patterson, Jeremy A.
    Decrease muscle soreness by medical tape is supported by the literature. The purpose of this study was to assess the efficacy of the cross tapes in muscle soreness. Subjects: Twenty normal subjects ranging in age from 18 to 55 with no history of previous skin allergy and do not have any upper body injuries participated. Methods: Subjects will perform the lowering phase of a bicep curl exercise using a dumbbell consisting of 3 sets 25 repetition, followed 90 seconds rest between each set. A grid shaped adhesive, a little larger than a stamp, called a cross tapes will be applied in the bicep of the dominant hand and the other hand as control for one week. The range of motion and pain for both arms will be measured before and after applied the tape. Results: The study findings show that there was statically significant difference between the ROM and the pain (pre, post) when the procedure is carried out over a period of two consecutive weeks (1 day per week) with large effect size (0.2) and strong power (0.96). However; there were no significant differences between the two groups (right, left arms) with medium effect size (0.1) and weak power (0.33). Discussion & Conclusion: Therefore, this study suggest that CT may reduce DOMS, however more research is needed. Future studies should include a larger number of subjects, more diverse cohort, an exercise that applies a greater intensity, and expands the time of research. CT is an advisable method to decrease DOMS and improved functional performance.
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    BESS scores observed in real-time versus slow-motion video recording
    (Wichita State University. Graduate School, 2014-04-25) Stern, Danielle C.; Amick, Ryan Zackary; Jansen, Samantha D.; Patterson, Jeremy A.
    The Balance Error Scoring System (BESS) is a subjective clinical balance assessment frequently used by various healthcare providers. The test consists of three different stances (feet together, tandem, and single leg) that are each 20 seconds long. An administrator carefully observes and records the number of pre-defined balance or stability errors committed by the test subject. However, it is unclear if test administrators are able to observe all errors committed by the subject in real-time. 53 subjects were scored in person and recorded on video for slow-motion access while performing two series of BESS trials by an experienced BESS rater. No significant difference between means in overall total score in real-time or slow-motion (9.8 + 6.7 and 9.7 + 5.5 errors, respectively) were reported. Results of this study suggest that experienced BESS raters score balance errors consistently whether the test is in real-time or recorded and viewed in slow-motion.