University of Wisconsin osse

Lake Wisconsin, WI, United States

University of Wisconsin osse

Lake Wisconsin, WI, United States
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Hettinga F.J.,VU University Amsterdam | Hettinga F.J.,University of Groningen | De Koning J.J.,VU University Amsterdam | De Koning J.J.,University of Wisconsin osse | And 2 more authors.
British Journal of Sports Medicine | Year: 2012

Introduction Both mean power output (MPO) and the distribution of the available energy over the race, that is, pacing strategy, are critical factors in performance. The purpose of this study was to determine the relative importance of both pacing strategy and MPO to performance. Methods Six well-trained, regionally competitive cyclists performed four 1500-m ergometer time trials (̃2 min). For each subject, the fastest (Fast) and slowest (Slow) time trials were compared and the relative importance of differences in power output and pacing strategy were determined with an energy flow model. Results The difference in final time between Fast and Slow was 4.0 (2.5) s. Fast was performed with a higher MPO (437.8 (32.3) W vs 411.3 (39.0) W), a higher aerobic peak power (295.3 (36.8) vs 287.5 (34.7) W) and a higher anaerobic peak power (828.8 (145.4) W vs 649.5 (112.2) W) combined with a relatively higher, but not statistically different anaerobic rate constant (0.051 (0.016) vs 0.041 (0.009) W). The changes in MPO (63% anaerobic, 37% aerobic) largely explained the differences in final times. Athletes chose a different pacing strategy that was close to optimal for their physiological condition in both Fast and Slow. Conclusion Differences in intraindividual performance were mainly caused by differences in MPO. Athletes seemed to be able to effectively adjust their pacing profile based on their "status of the day".

Hettinga F.J.,VU University Amsterdam | Hettinga F.J.,University of Groningen | De Koning J.J.,VU University Amsterdam | De Koning J.J.,University of Wisconsin osse | And 4 more authors.
British Journal of Sports Medicine | Year: 2011

Purpose: Athletes are trained to choose the pace which is perceived to be correct during a specific effort, such as the 1500-m speed skating competition. The purpose of the present study was to "override" self-paced (SP) performance by instructing athletes to execute a theoretically optimal pacing profile. Methods: Seven national-level speed-skaters performed a SP 1500-m which was analysed by obtaining velocity (every 100 m) and body position (every 200 m) with video to calculate total mechanical power output. Together with gross efficiency and aerobic kinetics, obtained in separate trials, data were used to calculate aerobic and anaerobic power output profiles. An energy flow model was applied to S P, simulating a range of pacing strategies, and a theoretically optimal pacing profile was imposed in a second race (IM). Results: Final time for IM was ∼2 s slower than SP. Total power distribution per lap differed, with a higher power over the first 300 m for IM (637.0 (49.4) vs 612.5 (50.0) W). Anaerobic parameters did not differ. The faster first lap resulted in a higher aerodynamic drag coefficient and perhaps a less effective push-off. Conclusion: Experienced athletes have a welldeveloped performance template, and changing pacing strategy towards a theoretically optimal fast start protocol had negative consequences on speed-skating technique and did not result in better performance.

Bolkan C.,Washington State University | Srinivasan E.,University of Wisconsin osse | Dewar A.R.,University of Central Florida | Schubel S.,Washington State University
Gerontology and Geriatrics Education | Year: 2015

Students may have a greater willingness to discuss issues of death and loss through written assignments; however, there is little guidance for instructors regarding how to manage these sensitive assignments, nor how students benefit from them. The authors implemented and evaluated a “lossography” assignment in an undergraduate thanatology course in which students wrote about their losses and anonymously shared these narratives with their classmates. Although many themes of loss emerged, the most frequently reported significant loss was death of a grandparent. Additionally, most significant losses occurred in childhood/adolescence. Prominent themes related to student learning included gaining self-awareness, knowledge about grief responses, and compassion for others. Students (N = 64) also completed a survey reflecting on their course learning. Of all aspects of course delivery, 44% identified the lossography as the most beneficial, whereas 97% recommended this assignment for future students. The implications of the assignment for death education are also discussed. © , Copyright © Taylor & Francis Group, LLC.

Ghode A.,University of Mumbai | Periyasamy K.,University of Wisconsin osse
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2012

Estimating cost for the software project is one of the most important and crucial task to maintain the software reliability. Many cost estimation models have been reported till now, but most of them have significant drawbacks due to rapid changes in the technology. For example, Source Line Of Code (SLOC) can only be counted when the software construction is complete. Function Point (FP) metric is deficient in handling Object Oriented Technology, as it was designed for procedural languages such as COBOL. Since Object-Oriented Programming became a popular development practice, most of the software companies started applying the Unified Modeling Language (UML). The objective of this research is to develop a new cost estimation model with the application of class diagram for the software cost estimation. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Ebben W.P.,Marquette University | Fauth M.L.,Marquette University | Kaufmann C.E.,University of Wisconsin osse | Petushek E.J.,Marquette University
Journal of Strength and Conditioning Research | Year: 2010

This study evaluated impulse (I), peak ground reaction forces (GRF), and the rate of force development (RFD) of a variety of exercise modes for the purpose of estimating the magnitude and rate of mechanical loading as a measure of osteogenic potential. Twenty-three subjects participated in this study (mean 6 SD, age 21.2 ± 1.4 years; body mass 77.8 ± 16.2 kg). Kinetic data were obtained via a force platform for the test exercises modes, which included walking, jogging, depth jumps, loaded jump squats, and the back squat. Repeated measures analysis of variance revealed significant main effects for I, GRF, and RFD (p ≤ 0.001). Bonferroni-adjusted post hoc analyses demonstrated that I and GRF were different between each exercise mode and that RFD was different between all exercise modes except for jogging and the back squat. The depth jump demonstrated the highest GRF and RFD, while the back squat produced the highest I. The jump squat produced the second highest value for all the variables assessed. Thus, the depth jump, jump squat, and back squat appear to offer the greatest potential as osteogenic stimuli and a mixed mode training strategy including exercises such as these is recommended. These results suggest that walking and jogging may have less osteogenic potential. © 2010 National Strength and Conditioning Association.

Ebben W.P.,Marquette University | Kaufmann C.E.,University of Wisconsin osse | Fauth M.L.,Marquette University | Petushek E.J.,Marquette University
Journal of Strength and Conditioning Research | Year: 2010

Concurrent activation potentiation enhances muscular force during open kinetic chain isometric and isokinetic exercises via remote voluntary contractions (RVCs). The purpose of this study was to evaluate the effect of RVCs on the performance of closed kinetic chain ground-based exercises. Subjects included 13 men (21.4 ± 1.5 years) who performed the back squat and jump squat in 2 test conditions. The RVC condition included performing the test exercises while clenching the jaw on a mouth guard, forcefully gripping and pulling the barbell down into the trapezius, and performing a Valsalva maneuver. The normal condition (NO-RVC) included performing the test exercises without RVCs. Exercises were assessed with a force platform. Peak ground reaction force (GRF), rate of force development (RFD) during the first 100 milliseconds (RFD-100), RFD to peak GRF (RFD-P), and jump squat height (JH) were calculated from the force-time records. Data were analyzed using an analysis of variance. Results reveal that GRF and RFD-100 were higher in the RVC compared with the NO-RVC condition for both the back squat and jump squat (p ≤ 0.05). The RFD-P was higher in the RVC compared with NO-RVC condition for the jump squat (p ≤ 0.05) but not for the back squat (p = 0.82). The JH was higher in the RVC compared to the NO-RVC condition for the jump squat (p ≤ 0.05). This study demonstrates that RVCs enhance the performance of closed kinetic chain exercises for most of the outcome variables assessed, yielding a 2.9-32.3% greater performance. Practitioners should encourage athletes to use RVCs to improve the acute training effect of exercises such as those used in this study. © 2010 National Strength and Conditioning Association.

De Koning J.J.,VU University Amsterdam | De Koning J.J.,University of Wisconsin osse | Noordhof D.A.,VU University Amsterdam | Lucia A.,European University at Madrid | And 2 more authors.
International Journal of Sports Medicine | Year: 2012

There is little standardization of how to measure cycling gross efficiency (GE). Therefore, the purposes of these studies were to evaluate the effect of: i) stage duration, ii) relative exercise intensity, iii) work capacity and iv) a prior maximal incremental test on GE. Trained subjects (n=28) performed incremental tests with stage durations of 1-, 3-, and 6-min to establish the effect of stage duration and relative exercise intensity on GE. The effect of work capacity was evaluated by correlating GE with peak power output (PPO). In different subjects (n=9), GE was measured at 50% PPO with and without a prior maximal incremental test. GE was similar in 3- and 6-min stages (19.7±2.8% and 19.3±2.0%), but significantly higher during 1-min stages (21.1±2.7%), GE increased with relative exercise intensity, up to 50% PPO or the power output corresponding to the ventilatory threshold and then remained stable. No relationship between work capacity and GE was found. Prior maximal exercise had a small effect on GE measures; GE was lower after maximal exercise. In conclusion, GE can be determined robustly so long as steady state exercise is performed and RER ≤ 1.0. © Georg Thieme Verlag KG Stuttgart New York.

Ebben W.P.,University of Wisconsin - Parkside | Ebben W.P.,Stock Car Driver Research Center | Suchomel T.J.,University of Wisconsin osse
Journal of Strength and Conditioning Research | Year: 2012

The purpose of this study was to assess the physical demands, injuries, and conditioning practices of stock car drivers. Forty stock car drivers from 27 states in the United States participated in the interviews for 43.9 6 13.9 minutes. The interviews examined background information, the physical demands of racing, injuries associated with racing, and the athletic and fitness background and practices of the subjects. Numerical data were analyzed using Pearson's correlation coeficients. Responses to open-ended questions were analyzed using inductive content analysis. Results revealed significant correlation between track points standings and the length of the resistance training sessions (R = 20.71, p = 0.002) and subject self-assessment of their fitness (R = 20.53, p = 0.045). Results also revealed that "upper-body strength" was identified as the most important physical demand. Extreme fatigue was the most common feeling after a demanding race. Subjects reported that shoulder fatigue was the most common form of muscle soreness experienced after a race. Back and torso injuries were the most common injury, although head injuries most frequently required medical attention. The subjects' biggest fear was fire, followed closely by head and neck injury. The bench press and running were the most commonly performed resistance training and cardiovascular exercises, respectively. Subjects reported that their highest motivation for training was to improve their racing performance. Many subjects had athletic backgrounds with football identified as the sport they had most commonly participated in. This study provides additional detailed information. Results of this study can assist strength and conditioning professionals in the development of strength and conditioning programs for performance enhancement and injury prevention that are specific to the needs of this population of athletes. © 2012 National Strength and Conditioning Association.

Krumrei K.,University of Wisconsin osse | Flanagan M.,University of Wisconsin osse | Bruner,University of Wisconsin osse | Durall C.,University of Wisconsin osse
Journal of Sport Rehabilitation | Year: 2014

Clinical Scenario: Injuries are somewhat commonplace in highly active populations. One strategy for reducinginjuries is to identify individuals with an elevated injury risk before participation so that remediativeinterventions can be provided. Preparticipation screenings have traditionally entailed strength and flexibilitymeasures thought to be indicative of inflated injury risk. Some researchers, however, have suggested thatfunctional movements/tasks should be assessed to help identify individuals with a high risk of future injury. One assessment tool used for this purpose is the Functional Movement Screen (FMS). The FMS generates anumeric score based on performance attributes during 7 dynamic tasks; this score is purported to reflect futureinjury risk. Expanding interest in the FMS has led researchers to investigate how accurately it can identifyindividuals with an increased risk of injury. Focused Clinical Question: Can the Functional Movement Screenaccurately identify highly active individuals with an elevated risk of injury?. © 2014 Human Kinetics, Inc.

PubMed | University of Wisconsin osse
Type: Journal Article | Journal: Occupational therapy in health care | Year: 2013

Problem based learning (PBL) in occupational therapy education has become very popular, although the efficacy of this teaching method has not been well documented. The purpose of this study was to evaluate the effectiveness of a PBL case in meeting faculty generated learning objectives. A pretest/posttest design was utilized to evaluate students perceptions of content acquisition. A two-way ANOVA with repeated measures was completed; results yielded a significant difference among the pretest and posttest scores (p-v < 0.01). The posttest mean scores were higher, which indicated that students perceived they acquired the intended knowledge and PBL was an effective method to facilitating learning.

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