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Browsing by Author "Bahamonde, Rafael E."
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ItemAcute Effects of Sound Assisted Soft Tissue Mobilization (SASTM) on Lower Extremity Flexibility, Isokinetic and Isometric Strength(2019-07) Beer, Jeffrey Allen; Bahamonde, Rafael E.; Loghmani, M. Terry; Naugle, Keith E.; Streepey, Jefferson W.SASTMTM is a myofascial technique used to mobilize soft tissue and aid in the elongation of soft tissue and create physiological change. The purpose of the study was to determine the acute effects of Sound Assisted Soft Tissue Mobilization (SASTMTM) on lower extremity hamstring strength (isokinetic & isometric) and flexibility. Thirty division III male athletes with limited ROM of ≤ 90o of knee extension with 90o of hip flexion while lying supine consented to volunteer. Each subject was treated and measured through a double-blinded experimental design where the subjects and tester were unaware of the real treatment being administered and measured. The research consisted of 4 visits (familiarization/baseline, and 3 data collection session). Testing sessions were conducted a week after the baseline session, followed by two sessions, 2 days and a week after the 1st session. Three different modalities (SASTMTM, Therapeutic Ultrasound and “The Stick”) were performed on a treatment leg, and the opposite leg served as a control. Data collection consisted of a warm-up on a cycle ergometer followed by one randomly chosen modality on the treatment leg. Data collection was conducted using a Cybex 300-isokinetic device and a digital goniometer. Isokinetic strength testing was performed at 60, 180 and 240o/s. Isometric testing was collected at 45o of knee flexion. Repeated two-way ANOVA’s (3-Treatment x 3-Time) were used for statistical analyses to determine the effects of interventions and the time on strength and flexibility. The statistical analyses resulted in no significant results (p≤.05) for acute effects for either strength or flexibility with respect to time, treatment or treatment and time interactions. ItemDoes Vibration Training Improve Physical Function and Quality of Life in Fibromyalgia Syndrome?(Office of the Vice Chancellor for Research, 2010-04-09) Kaleth, Anthony S.; Ang, Dennis C.; Streepey, Jefferson W.; Mikesky, Alan E.; Bahamonde, Rafael E.; Dilts, SandiExercise and physical activity recommendations are an integral component of the overall management of fibromyalgia. Unfortunately, despite the known health, fitness, and symptom relief benefits, underlying pain and fatigue prevent most from initiating (or maintaining) physical activity and exercise programs, thereby contributing to sedentary lifestyles that lead to low levels of aerobic and muscular fitness. Therefore, it is important to identify alternative approaches to exercise programming in the overall management of fibromyalgia. Vibration training is a relatively new approach to exercise that has been shown to elicit numerous benefits; however little is known about the effects of this training method in fibromyalgia. Therefore, the primary aim of this study is to evaluate the effects of vibration training in improving musculoskeletal function, balance and postural control, and health-related quality of life in patients diagnosed with fibromyalgia. ItemEffects of physical training on proprioception in older women(2003) Thompson, KR; Mikesky, Alan; Bahamonde, Rafael E.; Burr, David B.Older adulthood is accompanied by declines in muscular strength, coordination, function, and increased risk of falling. Resistance training increases muscular strength in this population but its effect on proprioception is unknown. To evaluate the effect of resistance training on proprioception, community dwelling older women completed a three-month exercise study. A resistance training (RT) group (N=19) underwent supervised weight training three times per week while a non-strength trained control (NSTC) group (N=19) performed range-of-motion activities that mimicked the movements of the RT group without the benefit of muscle loading. Subjects were evaluated at baseline, 6, and 12 weeks for strength and proprioception. Muscular strength was assessed by measuring the subject’s one repetition maximum performance on four different exercises. Static proprioception was measured by the subject’s ability to reproduce a target knee joint angle while dynamic proprioception was measured by the subject’s ability to detect passive knee motion. The RT group made significant strength improvements compared to the NSTC group. Proprioception significantly improved in both groups by 6 weeks. Our findings suggest that improvements in proprioception can be obtained via regular activity that is independent of heavy muscle loading. ItemENERGY RETURN OF DIFFERENT DESIGNS OF TRACK SPIKES(Office of the Vice Chancellor for Research, 2014-04-11) Bahamonde, Rafael E.; Streepey, Jefferson; Goyke, Lance; Myers, Adrian; Mikesky, Alan E.INTRODUCTION: Advances in technology and design have generated changes to the traditional track spike. Today, there are a number of different spike shapes, the four most common being needle, pyramid, post, and Christmas tree and modified Christmas tree (the last two are also referred to as “compression tier”) (see Figure 1). Running magazines, product advertisements, coaches, and manufacturers make claims about the potential effects of each type of spike design and their use in different situations. To our knowledge, these types of claims and other information regarding spikes or track surfaces, have not been tested and reported in the peer-reviewed literature. METHODS: The purpose of this preliminary study was to examine whether different shaped spikes elicit quantifiable differences in energy return on a Mondo track surface, the most commonly used at track venues. Five different shaped spikes all 7mm in length were used in this study (see Figure #1). The spikes chosen are those commonly used by athletes on various indoor and outdoor track surfaces. The load-deformation between the spikes the track was measured using a Bose Electroforce 3200 (Eden Praire, MN) testing device. OneWay ANOVAs using Sigma Plot 10.5 (Systat Inc., Richmond, CA) were performed to test for significant differences between spikes. Tukey post-hoc comparisons were performed at the p=0.05 level. RESULTS: Figure 2 shows the ANOVA results [F (4,49)=54.78, p<.001] and Tukey post-hoc comparison for the energy returned. The MTREE spike generated the greatest amount of energy returned and was significantly different from the other spikes (p<=0.05). The PYRA spike generated second largest amount of energy returned and was significant different from the PIN and POST spikes. The PIN or needle spike, as expected, had the least amount of energy returned. All spikes penetrated the track surface. DISCUSSION: The notion that compression spikes have less track penetration is unfounded. All the spikes tested penetrated the track under loads less than 105 N. Considering that vertical ground reaction force (GRF) increases linearly during walking and running from 1.2 BW to approximately 2.5 BW at 6.0 m s−1 and remains constant during forward lean sprinting at higher speeds, the likehood of any of the tested spikes not penetrating the Mondo track surface seems improbable (Keller et al., 1996). For the Mondo track the spike with the largest energy return was the MTREE design. This MTREE provided the largest spike surface area, which helped it to compress the track. The common PIN design provided the least energy return but absorbed the least amount of energy. All the compression spikes seem to provide larger amounts of energy return when compared to the PIN. The measured energy returned by the various spikes is relatively small (N*mm). However, for this study, the energy return was determined for only one spike while most sprint shoes have a sole plate with up to 10 mounted spikes. While it is difficult to assess how much of the energy returned in the spike-track surface interaction might actually aid the sprinter, these findings are nevertheless noteworthy. It is not uncommon for results in sprint races to be separated by only thousandths of a second, where even small levels of energy return could potentially make the difference between winning or losing a race. CONCLUSION: This study shows that spike design affects the amount of energy returned and absorbed by a Mondo track surface. While all of the spikes tested penetrated the track surface, the modified Christmas tree design returned the most energy on the Mondo surface. Knowledge of which spike design offers the highest energy return on the various track surfaces that athletes compete on could be useful to coaches and athletes, as well as, spike and track manufacturers and thus is worthy of further investigation. ItemExemplifying Inclusive Excellence: How Indiana University Purdue University Indianapolis Leads by Example in Kinesiology(AKA, 2022-11) Urtel, Mark; Keith, NiCole; Bahamonde, Rafael E.; Kinesiology, School of Health and Human SciencesThis article documents the highlights achieved by the Department of Kinesiology at Indiana University Purdue University Indianapolis over the span of 25 years that culminated with their being awarded the Inclusive Excellence award as sponsored by the American Kinesiology Association. Furthermore, this journey was presented using the special issue focus on leadership. Presented experiences occurred within the typical faculty understanding of teaching, research, and service. Recognition was given to the university and campus that hosts this department as it related to the overall diversity and inclusion culture developed on the broader scale, as this is important to acknowledge. This journey could inform or inspire other similar units as they strive to enhance diversity and inclusive excellence in their respective institutions. ItemInsights Gained into the Use of Individual Development Plans as a Framework for Mentoring NIH Postbaccalaureate Research Education Program (PREP) Trainees(American Chemical Society, 2022) Hardy, Tabitha M.; Hansen, Michele J.; Bahamonde, Rafael E.; Kimble-Hill, Ann C.; Biology, School of ScienceThis study examines the use of individual development plans (IDPs) in a structured mentoring program as an effective mechanism for reducing identity-related anxiety for underrepresented trainees and increasing their learner agency. Social cognitive theory served to provide the theoretical framework for our implementation of IDPs and our investigation of the effects of completing IDPs on trainees attaining academic goals and subsequent success in enrolling in competitive PhD programs. Results suggest that IDPs are also an effective tool that can allow faculty mentors to provide the social support necessary for trainees to persist in accomplishing their short- and long-term learning goals. Additionally, trainee self-agency, in the use of the IDP and mentoring, seemed to provide an alternative narrative to ability as a sole predictor of STEM achievement. We also found that IDPs helped foster social support networks, providing stability, predictability, and a sense of belonging. Specifically, IDPs helped foster the emotional and informational support necessary for trainees to persist, despite obstacles, as they strived to attain their learning goals. ItemMillennials’ perception of destination attractiveness(2017-12-18) Johnson, Cori Lee; Ogbeide, Godwin-Charles; Bahamonde, Rafael E.; Cecil, AmandaPast studies are focused on measuring competitiveness factors that are significant to a destination, while lesser focus is provided to capturing specific tourists’ attractiveness factors. The purpose of this study was to explore Millennials’ perception of destination attractiveness (DA) and their propensity to visit a destination. The objectives of this research include 1) To explore the perceptions of the millennial tourist when deciding on visiting a destination, 2) To determine which destination attractiveness factors are significant to the millennial tourist, 3) To identify Millennials propensity to visit a destination and 4) To explore other preferences that affect propensity to visit a destination. To accomplish the purpose and objectives, millennial college students and recent graduates from multiple universities in the USA were surveyed. A total of 103 Millennials participated in the study. Descriptive statistics and multivariate analysis were used to analyze the data. The results of this study will contribute to the existing knowledge in the areas of Millennials’ propensity to visit a destination and their perception of destination attractiveness. ItemOn-Line Quizzing and Its Effect on Student Engagement and Academic Performance(2006-10) Urtel, Mark G.; Bahamonde, Rafael E.; Mikesky, Alan E.; Udry, Eileen M.; Vessely, Jeff S.The goal of this study was to determine if on-line out-of-class quizzing would lead to increases in (a) classroom engagement (b) academic performance and (c) preparation perception of college students. Twenty-four sophomore level students enrolled in a required functional anatomy course participated in this study. Results from this study indicate that on-line quizzing had a statistically significant impact on some indicators of student classroom engagement. However, on-line quizzing had no statistically significant impact on academic performance as evidenced by test scores. Finally, student perceptions, as a result of on-line quizzing significantly improved. ItemProprioception, gait kinematics, and rate of loading during walking: Are they related?(2005) Riskowski, JL; Mikesky, Alan; Bahamonde, Rafael E.; Alvey III, TV; Burr, David B.The cyclic nature of walking can lead to repetitive stress and associated complications due to the rate of loading (ROL) experienced by the body at the initial contact of the foot with the ground. An individual’s gait kinematics at initial contact have been suggested to give rise to the ROL, and a repetitive, high ROL may lead to several disorders, including osteoarthritis. Additionally, proprioception, the feedback signaling of limb position and movement, may play a role in how the foot strikes the ground and thus, the ROL. Our goal was to explore the relationship between proprioception, gait kinematics and ROL. Thirty-eight women were recruited for gait analysis, and the gait characteristics 50ms prior to and at initial contact were examined. Two proprioception tests, joint angle reproduction and threshold to detect passive motion were used to examine the subject’s proprioceptive acuity. Our results indicate that individuals with a larger knee angle (i.e., greater extension) 50ms prior to initial contact (IC) experience a higher ROL during gait and have poorer proprioceptive scores. However, it remains unclear whether poor proprioception causes a high ROL or if a high ROL damages the mechanoreceptors involved in proprioception, but the apparent relationship is significant and warrants further investigation.