International Journal of Physical Education, Fitness and Sports en-US (Dr. B. Chittibabu) (IJPEFS) Thu, 06 Jun 2019 04:43:50 +0000 OJS 60 Investigation of exercise intensity in competitive roundnet/spikeball <p>The game of roundnet (spikeball) is a trend sport that has gained much popularity in leisure time activity in recent years. However, no scientific studies dealing with this trend sport are published yet. The aim of this study was to evaluate the physiological demand of male roundnet players during a roundnet match. Therefore, 12 experienced male roundnet players were recruited. In a pre-experimental test, all participants conducted a ramp-based treadmill test with spirometric measurements. Further, lactate concentrations, velocity and heart rate (HR) were measured. In a subsequent field test, participants conducted a roundnet game in accordance with the official rules. During that field test, the following parameters were measured: Average and maximum HR, lactate concentrations, step count, steps per minute, playing time and rate of perceived exertion (RPE). Results of the pre-experimental test reveal that participants reached a maximum running speed of 5.1±0.2 m/s, a maximum HR of 190.4±7.2 bpm and a VO<sub>2max</sub> of 55.8±4.2 ml/min/kg. Results of the field test showed that participants reached a maximum HR of 159.7±7.9 bpm corresponding to 83.9±3.6% of the participant’s maximum HR. Average HR was 133.6±9.4 bpm corresponding to 70.1±4.2% of the participant’s maximum HR. Participants reached a mean lactate concentration of 1.2±0.2 mmol/l and a RPE score of 13.2±1.2. The mean playing time of one set was 10.8±0.8 minutes. On average, 790.5±125.2 steps were measured during one set equaling 73.1±11.6 steps per minute. To conclude, this study first time presents game characteristics and the physiological demand of the trend sport roundnet. Results indicate that the physiological demand can be described as moderate as none of the measured parameters reaches disproportionately high values.</p> Nils-Oliver Grimm, Fabian Tomschi ##submission.copyrightStatement## Thu, 06 Jun 2019 04:18:51 +0000 Fact and Fiction in youth Cardiorespiratory Fitness <p>Cardiorespiratory fitness (CRF) reflects the integrated ability to deliver oxygen from the atmosphere to the skeletal muscles and to utilize it to generate energy to support muscle activity during exercise. Peak oxygen uptake ( ) is internationally recognized as the criterion measure of youth CRF. It is well-documented that in youth peak &nbsp;increases with sex-specific, concurrent changes in a range of age- and maturity status-driven morphological and physiological covariates with the timing and tempo of changes specific to individuals. However, a recent resurgence of interest in predicting peak &nbsp;from field test performances and the persistence of fallacious interpretations of peak &nbsp;in 1:1 ratio with body mass have obfuscated general understanding of the development of CRF. Moreover, as spurious relationships arise when ratio-scaled data are correlated with health-related variables the use of this scaling technique has confounded the relationship of youth CRF with indicators of current and future health. This paper reviews the extant evidence and concludes that the interpretation of youth CRF and the promotion of young people’s health and well-being should be founded on scientific facts and not on fictions based on flawed methodology and specious interpretation of data.</p> Neil Armstrong, Jo Welsman ##submission.copyrightStatement## Thu, 06 Jun 2019 00:00:00 +0000 Can startle response magnitudes be used as a tool to predict sportive capacities? A comparative study between healthy young adults and athletes. <p>The acoustic startle reflex (ASR) is an intense reaction that involves the contraction of muscle groups in response to an unexpected stimulus. We proposed that an ASR measurement may be used to select physical characteristics among healthy people, including athletes. To find the relationship between the ASR and physical conditioning level, we designed a study to perform ASR measurements, anthropometric measurements, neuromuscular conjugation exercises, strength test, and flexibility test. We studied young adults into 4 groups: male-control, male-athlete, female-control, and female-athlete. Our results showed how the startle amplitude was decreased in athletes compared with controls. In most of the anthropometric parameters, there were differences attending to gender in control groups, but these differences diminished in athletes. In addition, some fitness values were correlated with the latency of the muscle response and with the prepulse inhibition. This study demonstrates that regular practice of a sport, aside from causing changes in common fitness variables, also promotes changes in ASR parameters. In some way, the intense body training stimulates the brain reorganization to enhance some responses related to adapt the ASR. With this study, we are opening a field for those interested in finding out new instruments to discriminate athletes.</p> Sebastian Hormigo, Carlos Moreno ##submission.copyrightStatement## Fri, 07 Jun 2019 03:53:47 +0000 Physical Activity Level among Pre-University Students of Mangaluru City: A Cross-Sectional Study <p>Physical activity is one of the best health promotion activities that enhance the overall health status, mental status and performance. There is decline in the physical activity by ten folds since last four decades among adolescence worldwide. Educational institutions have a prime role in enhancing physical activity among school going children’s through schedule classes. This study was conducted to determine the level of physical activity among the Pre-University students of Mangaluru city. The study also aimed to determine the nutritional status of the students using weight for height. Cross-sectional study was conducted in selected Pre-University colleges of Mangaluru city. The study period was from January 2019 to April 2019. In total 572 samples were collected. YPAQ for physical activity and Likert scale questionnaire for college based program were used to collect a data. Overall 50.5% of the students were found to be physically active in this study. In-house factors like type of college, type of streams (Science/Commerce/Arts), mode of transportation and personal factors like gender, gym workouts, household activities were significantly associated (p&lt;0.05) with the level of physical activity respectively. Student’s regular participation in physical activity at college level was significantly associated (p&lt;0.05) and were 3.76 times more active than students who did not participate. Regular physical activity schedule at the college level and motivation to participate along with studies will significantly improve the overall performance of the students.</p> Karuna Neupane, Mackwin Kenwood DMello ##submission.copyrightStatement## Sat, 08 Jun 2019 15:24:15 +0000 Effectiveness of plyometric exercises to improve muscular strength and digital achievement for students in shot put <p>To identify the effectiveness of plyometric exercises to improve muscular strength and achievement in shot put event by students (20-22 years old). The researchers used an experimental method; the sample was formed by students belonging to the institute of physical education &amp; sports, University of Mostaganem (Algeria). Thus it was the application of the experimental method was applied on a sample of third-year students (males) of 45 students divided into two groups, first control group of 22 students and an experimental group of 23 students. While the tests used were (strength test, achievement test). After the treatment of the results by statistical means, and through these results it have been reached several conclusions of them, plyometric Exercises to develop muscular strength and achievement in shot put [discussion significant difference (*p≤0.05)]. And best improve of the experimental sample based on plyometric exercises compared to the control sample, which rely more on the technical side only in shot put event.</p> Belaidouni Mustapha, Benzidane Houcine, Ahmed Benklaouz Touati, Mokrani Djamel ##submission.copyrightStatement## Thu, 06 Jun 2019 00:00:00 +0000