The below list represents only planned manuscripts. Some of these
manuscripts have not been received by the Editorial Office yet. Papers
submitted to MDPI journals are subject to peer-review.
Type of Paper: Article
Title: Performance-Based Correlates to Vertical Jump Height and Power Values
Authors: J. F. Caruso, A. G. Barbosa, E. V. Gutierrez, M. W. Keller, S. D. Vickers, J. L. Martin, J. D. McArtor, R. A. Baptista, A. N. Clark, J. O. West, R. H. Walker and J. S. Daily
Abstract: We examined what types of performance-based variables (kinetic, temporal, force-time integrative, expressed relative to body mass) are the best correlates to vertical jump height and power values. Men (n = 117) performed vertical jumps on an instrumented platform placed aside a Vertec; both devices obtained data as jumps were performed. Vertec values were used to identify jump height and power, each of which served as criterion measures. The platform provided six performance-based variables from the takeoff phase of jumps; they were used to predict the variance per criterion measure via multivariate regression. With either jump height or power as a criterion each multivariate analysis, with corrections for multiple testing, revealed a significant (p < 0.05) amount of variance correlated to our performance-based independent variables. Univariate correlations showed peak force and area under the curve were the best predictors of jump height, as well as power, variance. Our results concur with outcomes from trials that employed similar subjects. We conclude kinetic and force-time integrative variables are the best correlates to vertical jump prowess when performance-based measures are derived from an instrumented platform.
Title: Epidemiological Review of Injuries in Rugby Union
Authors: JF Kaux 1,2,3, M Julia 4, M Chupin 3, F Delvaux 3, JL Croisier 2,3, B Forthomme 2,3, JM Crielaard 2,3, C Le Goff 2, P Durez 5, P Ernst 1, S Guns 1 and A Laly 1
Affiliations: 1 Centre de Formation de la Ligue Belge Francophone de Rugby (LBFR), ADEPS du Blanc Gravier, Allée des Sports, P63, Liège, Belgium
2 Multidisciplinary Medical and Sports Traumatology Service (SPORTS2), Liège CHU, Avenue de l’Hôpital, B35, Liège, Belgium
3 Department of Motricity Sciences, University of Liège, Allée des Sports, P63, Liège, Belgium
4 Commission Médicale de la Fédération Française de Rugby (FFR), Fédération MPR Montpellier-Nîmes, Hôpital Lapeyronie CHRU Montpellier, France
5 Medical Committee of the Fédération Belge de Rugby (FBR)
Abstract: Rugby is a sport which is growing in popularity. A contact sport par excellence, it causes a significant number of injuries. In rugby union, there are 30 to 91 injuries per 1,000 match hours. This epidemiological review of injuries incurred by rugby players mentions the position and type of injuries, the causes, time during the match and season in which they occur, the players' positions and the type of surface as well as the length of players' absences following the injury.
Keywords: injuries; rugby union; epidemiology; surface
Type of Paper: Article
Title: The Effect of High Intensity Intermittent Exercise on Power Output for the Upper Body
Authors: Leonie Harvey 1,*, Matthew Bousson 1, Chris McLellan 2 and Dale I Lovell 1
Affiliations:1 School of Health and Sport Sciences, Faculty of Science, Health & Education, University of the Sunshine Coast, Sippy Downs, Queensland, 4556, Australia; E-Mail: firstname.lastname@example.org (L.H.)
2 Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, 4226, Australia
Abstract: The aim of the present study was to examine and measure high intensity, intermittent upper body performance during the 5 × 6s repeat sprint test. Fifteen physically active males completed an upper body 5 × 6s test on a modified electro-magnetically braked cycle ergometer, which consisted of 5 maximal effort sprints, each 6 seconds in duration, separated by 24 seconds of passive recovery. A fly wheel braking force corresponding to 5% of the participants’ body weight was used as the implemented resistance level. Body composition was measured using dual-energy X-ray absorptiometry (DEXA). Percent (%) decrement was also calculated using previous research methods. Significant (P < 0.05) differences were found between sprints for both absolute and relative (W, W•kg-1, W•kg-1 LBM and W•kg-1 UBLBM) peak (PP) and mean (MP) power. The percentage (%) decrement in total work done over the 5 sprints was 11.4%. Stepwise multiple linear regression analysis revealed that upper body lean body mass (UBLBM) accounts for 87% of the variance in total work done during the upper body 5 × 6s sprint test. These results provide a descriptive analysis of upper body, high intensity intermittent exercise, demonstrating that PP and MP output decreased significantly during the upper body 5 × 6s sprint test.
Type of Paper: Review
Title: Physical Activity and Gastrointestinal Tumors: Primary and Tertiary Preventive Effects and Underlying Biological Mechanisms
Authors: Dorothea Frevel and Karen Steindorf
Affiliation: Unit of Physical Activity, Exercise and Cancer (G111), German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Im Neuenheimer Feld 460, D-69120 Heidelberg, Germany; E-Mail: email@example.com
Abstract: Gastrointestinal tumors are frequent tumors worldwide. The impact of physical activity over the cancer continuum is, thus, of high relevance. This manuscript will give an overview on the current evidence for both, the more public health oriented view on possible reductions of cancer risks and mortality, mostly derived from large epidemiological studies, as well as the more clinical view on the effects of exercise and physical activity in cancer patients on cancer progression and side-effects of the disease and/or the cancer treatment. The latter studies are either observational or (randomized) clinical trials. The focus will be on gastrointestinal tumors, covering gastric, colon, rectal, pancreatic, liver, and gallbladder cancer. Besides colon cancers which have been investigated extensively at least with regard to cancer risk reductions through physical activity, most of these cancers have only been studied in recent years. Especially for tertiary prevention there is scarcity of studies. Besides summarizing the current evidence, including the knowledge on potential biological mechanisms, an outlook on future perspectives will be given.