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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Relationships of Characteristics to Running Performances and Their Changes Throughout Collegiate Cross Country and Track Seasons

Alban, Bradley A 01 August 2017 (has links) (PDF)
A monitoring program is essential in assuring goal attainment and reducing the risk of overtraining or undertraining, establishing long-term athlete development, and ensuring success. This monitoring program needs to be integrated into the training process, developed, and executed by both the sport science and coaching staff. This staff forms the SPEG (sports performance enhancement group), which is athlete centered and coach driven. The purpose of this dissertation was to create an evidence based, or white box approach, to collegiate distance running by identifying key characteristics, utilizing appropriate monitoring tools, and examining the annual plan. Collegiate distance runners took part in a monitoring program through East Tennessee State University, which included vertical jumps, V̇O2max, running economy, anthropometrics, isometric mid-thigh pull, performance results and ultrasound measurements. There were strong correlations between performance results and monitoring data, and there were significant changes that occurred throughout the monitoring program. The results indicate the importance of V̇O2max in collegiate runners and that monitoring variables, including performance, sum of skinfolds, ultrasound and vertical jumps significantly change throughout the competitive season. The results also identify characteristics of a high-level runner and indicate the impact that a strength program can have on monitoring variables and performance. Results further suggest that strength can be a critical component of a training program, can be tracked through systematic monitoring, and is associated with an increase in performance.
12

Chemosensory Evaluation of Training and Oxidative Stress in Long Distance Runners

Whysong, Christan Yvonne 28 May 2014 (has links)
Athletes complete a balance of training loads and rest periods, risking overtraining when this balance favors excessive training. Diagnostic biomarkers have been suggested but a clear diagnostic method is not available. This preliminary study's objective was to use data standardization to improve an electronic nose's (enose) discrimination model for athletes' breathprints after cumulative and acute training loads. Collegiate long distance runners were observed throughout competitive training seasons. Prolonged training effects were observed through Profile of Mood States (POMS) surveys and blood and breath samples collected at the beginning (Pre-Study) and end of the training season (Post-Study). Immediate training effects were observed for one low (LI) and one high (HI) intensity acute training load. Subjects provided blood and breath samples before the LI (BSR) and HI (BLR), completed the training load, and provided blood and breath samples after each training load (ASR; ALR). Blood was analyzed for antioxidant enzymes (catalase, glutathione peroxidase, and glutathione reductase). Breath samples were analyzed with a Cyranose® 320 (C320) enose. Age, gender, and training loads affected oxidative states, with the HI having more effect than the LI. Mood profiles indicated healthy and successful athletes. Neither POMS nor blood parameters suggested overtrained athletes. The C320 successfully discriminated between breathprints of athletes correlating to the training loads. Direct data standardization through carbon dioxide as a baseline sensor purge correctly classified 100 percent of the data through linear discriminant analysis (LDA). Indirect data standardization by subtracting Pre-Study data from the subsequent data classes (e.g. BSR) correctly classified 96 percent of the data. An LDA on the combined blood parameters correctly classified 61.9 percent of the data. The blood analyses required invasive sample collections and involved procedures that took a long time (hours). In comparison, the best C320 model correctly classified 96 percent of the data and required less invasive sample collections, simple analysis, and short result times (minutes). Evidence suggested the C320 will provide a simple and noninvasive method for clinically diagnosing the onset of overtraining. The unit is small, handheld, rapid, and noninvasive so it could also be used on- site to provide immediate feedback for training optimization. / Ph. D.
13

The Effect of Training Protocols on Satisfaction and Performance of Collegiate Distance Runners

Sykes, Timothy Eli 07 November 2011 (has links)
When distance runners are recruited or walk-on to participate on their college track teams, they have two main goals in mind. They want to have a satisfying individual and team experience, and they have a desire to win and be the best. The outcomes of these goals are most directly influenced by their coach, who plans, develops, and implements the mental and physical aspects of the distance runners' overall training program. Wins and losses can be measured on the track, but distance runners' perceptions of satisfaction with their athletic experience are not often or easily assessed. Based on the advantages that satisfaction can offer student-athletes, this study was designed to achieve a dual purpose. The primary purpose of this study was to examine the relationship between collegiate distance runners' satisfaction and training protocols. The secondary purpose of this study was to determine the relationship between collegiate distance runners' training program satisfaction and performance. The participants included 130 NCAA distance runners from the six major Division I conferences. In order to assess satisfaction levels of training and instruction protocols and performance, the procedures required the distance runners to complete the 2010 Track Distance Athlete Satisfaction and Performance Questionnaire. The 2010 Track Distance Athlete Satisfaction and Performance Questionnaire was comprised of the following four sections: training (satisfaction), instruction (satisfaction), performance (satisfaction), and demographic information. The results were analyzed to determine the relationships between satisfaction and the training and instruction protocols and between overall training program satisfaction and performance, gender, and academic level. The results of this study indicated that NCAA Division I distance runners perceive their coaches' overall training programs and training and instruction protocols as satisfying. Further research is needed to continue to fill the gap in the satisfaction and performance literature and to develop a comprehensive understanding of this complex relationship. Overall, this study found that distance runners who are satisfied with their training program tend to be confident in their training, motivated, trusting of the coach and his or her training program, and enjoy their college racing and training experience. Therefore, satisfaction also positively affects distance runner retention. / Ph. D.
14

Chemosensory Evaluation of Training and Oxidative Stress in Long Distance Runners

Whysong, Christan 23 November 2009 (has links)
Athletic performance is improved by increasing training loads but it is difficult to determine an athlete's response to a training load and the amount of stress incurred. This makes athletes susceptible to overtraining, leading to decreased performance levels, due to physical exhaustion and oxidative stress. Past studies have observed a myriad of biomarkers without conclusively identifying a clinically specific marker for overtraining due to oxidative stress. These methods require invasive testing and lengthy result times, making real-time adjustments of training programs to prevent overtraining difficult. The use of an electronic nose (enose) as a non-invasive evaluation tool will provide immediate feedback on training stress, allowing for real-time training adjustments for performance optimization. Two long distance runners (one male and one female) completed a pilot study. Both performed a short run and the female performed a long run. Blood samples were collected from each athlete before and after each run and analyzed for catalase and GPx activity. Breath samples were also collected before and after each run and analyzed by an enose. Multivariate analyses of combined blood data yielded better results than individual analyses. Although data was limited for this pilot study, canonical discriminant analyses (CDA) showed separation between before and after run and between short and long run breath samples. Cross validations also found up to a 77.8 percent prediction accuracy for the enose. Results indicate an enose is feasible for detecting changes in the breath occurring after physically demanding exercise perhaps due to oxidative stress incurred during the exercise. / Master of Science
15

The effect of peer influence on running speed, enjoyment, and perceived exertion in intercollegiate distance runners

Carnes, Andrew 28 July 2011 (has links)
No description available.
16

An injury profile and management analysis of marathon runners at selected marathons in the great eThekwini and uMgungundlovu Municipalities during 2014

Van Niekerk, Giselle January 2016 (has links)
Submitted in partial compliance with the requirements for the Master’s Degree in Technology: Chiropractic, Durban University of Technology, Durban, South Africa, 2016. / Background: Running injuries are increasingly common as participation in this sport increases. Health care providers need to be better able to treat and manage these injuries and prevent their recurrence. Thus, there is a need for profiles of different population groups to enable the development of health promotion and injury prevention strategies. This research study profiled and tracked runners over seven marathons held in the eThekwini and uMgungundlovu Municipalities during the first quarter of 2014. Methods: This Durban University of Technology, Institutional Research and Ethics Committee approved retrospective Chiropractic Treatment Facility record analysis, analysed 741 recorded marathon visits. The records were based on a previously validated data collection tool (CSSA questionnaire) that allowed clinical data to be captured relating to patient demographics, anatomical site of the complaint, clinical impression, diagnosis and treatment. These fields were analysed for each visit, and then captured in SPSS version 22 with records only being excluded because they were unsigned. Descriptive and inferential statistics (McNemar’s tests) were compiled and a p-value of 0.05 was used. Results: The majority of the runners were Black males of approximately 40 years of age. A total of 95.6% of runners presented with overuse injuries, of which 73.6% and 89.3% had no history of previous injury or trauma respectively, and with 94.7% being able to continue participation. The shin and calf (21.7%), thigh (21.6%) and lumbar regions (16.1%) were most commonly affected by injuries which were predominantly muscle strains (23.2%) and SI syndrome (21.4%). These injuries were treated by manipulation (82.8%), massage (57.2%) and PNF stretching (33.6%). With runners that presented at subsequent marathons, a significant difference (McNemar’s p=0.013) in history of previous injury between the first and second marathon was found, with the runner being more likely to report a history of previous injury at their second marathon visit. Specific trends, although not significant, were found for specific subgroups (defined by age, gender, ethnicity, history of previous injury / trauma and chronicity of the diagnoses). Conclusion: The data is not dissimilar to the literature on running injuries, although specific trends in terms of sub categories were noted. These trends require further investigation through prospective, longitudinal studies. / M
17

The effect of minimalist shoe training on the neuromuscular control of recreational distance runners

Dreyer, Sule 04 1900 (has links)
Thesis (MScSportSc)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: Neuromuscular control (NMC) plays a critical role in dynamic movement regulation such as running (Nyland et al., 2011) and injury prevention (Hübcher et al., 2010). This experimental study set out to determine whether an eight-week minimalist shoe training program influences NMC in recreational distance runners. Eleven experimental (EXP) (5 women; 6 men) (age 23.4 ± 2.98 yrs; VO2max 43.55 ± 5.04 ml.min-1.kg-1; BMI 22.61 ± 3.08 kg.m2; Training 17 ± 5km.w-1) and 12 control (CON) runners (7 women; 5 men) (age 25.42 ± 5.57 yrs; VO2max 43.67 ± 4.38 ml.min-1.kg-1; BMI 22.38 ± 3.12 kg.m2; Training 18 ± 6km.w-1) randomly completed an eight-week training program in either minimalist shoe (EXP) or their usual trainers (CON). Neuromuscular control components were measured before and after the intervention i.e. postural sway (Balance Biodex®), using the Athletic Single Leg (ASL) and modified Clinical Test of Sensory Integration and Balance (mCTSIB) tests, joint position sense (JPS) using joint angle reproduction tests (Biodex® Isokinetic Dynamometer), frontal and sagittal planes isokinetic strength testing, lower body electromyography (EMG) and kinematic measurements while participants ran on a treadmill. Plantar-dorsiflexion (PF/DF) or inversion eversion (IN/EV) proprioception did not differ between groups (p > 0.05). In selected trials EXP showed less deterioration in IN/ EV foot position error, when compared to CON, with medium to large practical significance. Athletic Single Leg scores for non-dominant (p < 0.01) and dominant M/L (p = 0.05) sway, and dominant overall sway (p = 0.04) improved in CON, with marked differences between genders. Dorsiflexor strength improved for 30∘.sec-1 and 60∘.sec-1speeds in CON (p < 0.01 & p = 0.04, respectively) and in the slower speed for EXP (p = 0.04). Plantar-flexion (PF) strength improved in EXP men (30∘.sec-1 p = 0.02; 60∘.sec-1 p = 0.02), while EXP women demonstrated a 7% deficit. At initial contact PF increased in EXP (8km.h-1 p = 0.01; 10km.h-1 p = 0.01; 12km.h-1 p = 0.01), with women showing a greater change in ankle angle (8km.h-1 p = 0.03; 10km.h-1 p = 0.02; 12km.h-1 p = 0.01) compared to men (8km.h-1 p = 0.05; 10km.h-1 p = 0.06; 12km.h-1 p = 0.05). Greater knee flexion (8km.h-1 ES = 0.64; 10km.h-1 ES = 0.49; 12 km.h-1 ES = 0.51) in EXP. Plantar-flexor pre-activation improved in EXP women, while co-activation improved in EXP men and total activation improved in both genders.Results suggest that women may require more time to transition into minimalist shoes. While minimalist shoes may moderately reduce foot position error, improve strength and muscle activation patterns, excessive plantar flexor muscle damage may reduce strength and muscle spindle proprioceptive feedback. / AFRIKAANSE OPSOMMING: Neuromuskulêre beheer (NMC) speel ‘n kritieke rol in dinamiese beweginsregulasie, soos met hardloop (Nyland et al., 2011) en beseringsvoorkoming (Hübscher et al., 2010). Hierdie eksperimentele studie het uit gesit om te bepaal of ‘n agt-week minimalistiese skoen oefenprogram NMB kan beïnvloed in rekreasie langafstand atlete. Elf eksperimentele (EXP) (5 vrouens, 6 mans) (ouderdom 23.4 ± 2.98 jr; VO2maks 43.55 ± 5.04 ml.min-1.kg-1; BMI 22.61 ± 3.08 kg.m2; Oefening 17 ± 5km.w-1) en twaalf kontrole (CON) hardlopers (7 vrouens, 5 mans) (ouderdom 25.42 ± 5.57; VO2maks 43.67 ± 4.38 ml.min-1.kg-1; BMI 22.38 ± 3.12 kg.m2; Oefening 18 ± 6 km.w-1) het lukraak ‘n agt-week oefenprogram voltooi, óf in minimalistiese skoene (EXP) of in hul gewone hardlooptekkies (CON). Neuromuskulêre beheer komponente was gemeet voor en na die intervensie i. e. posturale wieg (Balans Biodex®), met gebruik van Atletiese Enkelbeentoets (ASL) en die gemodifiseerde Kliniese Toets van Sensoriese Integrasie en Balans (mCTSIB), gewrigs posisie bewustheid (Biodex® Isokinetiese Dinamometer), frontale en sagitalle vlak isokinetiese kragtoetsing, onderlyf elektromiografie (EMG) en biomeganiese metings terwyl deelnemers op ‘n trapmeul gehardloop het. Plantaar dorsifleksie (PF/DF) of inversie eversie (IN/EV) propriosepsie het nie verskil tussen groepe nie (p > 0.05). In selektiewe proewe het EXP IN/ EV ‘n verminderde afname gehad in foutiewe voet posisieplasings, in vergelyking met CON, terwyl medium na groot praktiese betekenisvolle verskille. . Atleet enkel been toets tellings vir nie-dominant (p=0.001) en dominante M/L (p = 0.05) wieg, en dominant algehele wieg (p = 0.04) het verbeter in CON, met gemerkte verskille tussen geslagte. Dorsifleksor krag het verbeter vir 30∘.sec-1 en 60∘.sec-1spoed in CON (p = 0.01 en p = 0.04, onderskeidelik) en in die stadiger spoed vir EXP (p = 0.04). Plantaarfleksie (PF) krag het verbeter in EXP mans (30∘.sek-1 p = 0.02; 60∘.sek-1 p = 0.02), terwyl EXP vrouens ‘n 7% tekort gedemonstreer het. By initïele kontak het PF toegeneem in EXP (8km.h-1 p = 0.01; 10km.h-1 p = 0.01; 12km.h-1 p = 0.01), met vrouens wat ‘n groter verandering getoon het (8km.h-1 p = 0.03; 10km.h-1 p = 0.02; 12km.h-1 p = 0.01), in vergelyking met mans (8km.h-1 p = 0.05; 10km.h-1 p = 0.06; 12km.h-1 p = 0.05). Groter kniefleksie (8km.h-1 ES = 0.64; 10km.h-1 ES = 0.49; 12 km.h-1 ES = 0.51) in EXP. Plantaarfleksie pre-aktivering het verbeter in EXP vrouens, terwyl ko-aktivering verbeter het in EXP mans, en totale aktivering verbeter het in beide geslagte.Hierdie resultate stel voor dat vrouens moontlik meer tyd sal vereis om na minimalistiese skoene oor te skakel. Terwyl minimalistiese skoene matige verbetering in foutiewe voetposisieplasing, verbeterde krag en spieraktiveringspatrone kan veroorsaak, kan oormatige plantaarfleksie spierskade krag en spierspoel proprioseptiewe terugvoer ook verminder.
18

Effect of Independent Crank Cycling Training On Running Economy In Collegiate Distance Runners

Smith, Aaron W. 01 May 2012 (has links)
The purpose of this study was to examine the changes in running economy of collegiate cross-country runners with 6 weeks of training on the PowerCranks ™ independent bicycle crank. Thirteen collegiate cross-country runners completed the study. Participants were asked to perform 6 weeks of training with either the PowerCranks™ device or the standard cranks (control group). Participants trained 3 days per week with a 48-hour minimum rest time between training sessions. Pre- and post-running economy and V02 max test data were collected. Data were analyzed with SPSS version 19 using a paired-samples t test as well as an independent t test. The paired samples I-test results for the participants pre-training running economy in the PowerCranks™ group were 2.98 ± 0.60 Llmin to 3.08 ± 0.59 Llmin post training; p = 0.057, 1= -2.464. The control group for the PowerCranks™ results were 2.68 ± 0.51 Lfmin pre-training, with post training results of2.69 ± 0.57 L/min,p = 0.815, t = -.245. Results for pre-training V02 max were 4. 10 ± 0.72 Llmin to 4.17 ± 0.75 Lll11in post training; p = 0.230, [= -1.366 with the PowerCranks™ group. The control group [or V02 max. results wen: 3.83 ± 1.10 Llmin pre-training with post-training resulting as 3.92 ± 1.09 Llmin,p = .245, t = -1.287. The results of the independent t test also showed that there was no significant change in values for running economy (t = -.112, P = .913) or V02 max (/ = 1.569,p = .145) when PowerCranks™ and control groups were compared. It was concluded that within the limitations of this study, experienced collegiate numers who performed 6 weeks of cross training with the PowerCranks™ independent cycle crank displayed no significant difference in running economy or VOz max results post training.
19

The Influence of an education program directed at dysfunctional eating on female distance runners

Clews, Gayelene, n/a January 1999 (has links)
This study examined the effectiveness of a multi-dimensional education program in facilitating attitude changes in adolescent female athletes away from dysfunctional eating behaviours and restrictive body image. Although research is available for diagnosing and identifying the problems associated with dysfunctional eating behaviours and attitudes in female athletes, few preventative tools have been proposed in order to address the problem. This study involved the design, delivery and the evaluation of a proposed a multi-dimensional education model as a preventative tool. The research design involved 18 teenage female middle/long distance runners, aged between 13 and 19, who were registered with the ACT Cross Country Club. The study was a quantitative and qualitative investigation employing a pre and post test design and using the process of triangulation to increase the study's validity. It was proposed that a multi-dimensional education program might be effective in steering attitudes away from dysfunctional eating behaviours and body image and that a mixed method design may corroborate and elaborate on the findings of the study to strengthen the understanding of the potential benefits of such an education program has to its participants. Results showed that education proved to be a successful tool in facilitating attitudinal changes in a positive direction, across a number of variables such as menstrual functioning, nutrition, flexibility, strength, and general awareness, on what constitutes a balanced healthy athletic body.
20

A descriptive study examining motivation, goal orientations, coaching, and training habits of women ultrarunners /

Krouse, Rhonna Zena. January 2009 (has links)
Thesis (M.S.)--Boise State University, 2009. / Includes abstract. Includes bibliographical references (leaves 51-54).

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