B. Dolezal, D. Boland, Eric V. Neufeld, Jennifer L Martin, C. Cooper
{"title":"Behavioral Modification Enhances the Benefits from Structured Aerobic and Resistance Training","authors":"B. Dolezal, D. Boland, Eric V. Neufeld, Jennifer L Martin, C. Cooper","doi":"10.1055/a-0900-7501","DOIUrl":"https://doi.org/10.1055/a-0900-7501","url":null,"abstract":"Abstract Behavioral modification (BM) is a strategy designed to sustain or restore well-being through effects such as enhanced relaxation, reduced stress, and improved sleep. Few studies have explored the role of BM delivered in the context of fitness programs for healthy adults. Thus, the purpose of this investigation was to examine whether BM combined with aerobic and resistance training programs would improve health and fitness measures more than the exercise training alone. Thirty-two healthy fitness club members (19 men) were randomized to receive a BM program (n=15) or an equal-attention (EA) control (n=17). BM consisted of twelve, 10-min education sessions between a trained fitness professional and the participant, coupled with weekly, individualized relaxation, stress reduction, and sleep improvement assignments. All participants engaged in 1 h of coached resistance training and remotely guided aerobic exercise thrice weekly for 12 weeks. Fitness measures (aerobic performance, body composition, muscle strength and endurance, lower-body power), sleep characteristics, and heart rate variability (HRV) were obtained at baseline and after the 12-week program. BM resulted in greater improvements in aerobic performance (increased maximum oxygen uptake, metabolic (lactate) threshold, and percent of maximum oxygen uptake at which metabolic threshold occurred), peak and average lower-body power, and body composition (decreased body fat percentage and fat mass) compared to EA. BM also positively influenced parasympathetic tone through increased High-frequency HRV. BM resulted in greater improvements in fitness measures, body composition, and heart rate variability compared with EA. These findings have intriguing implications regarding the role of BM in augmenting health and physical performance.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E48 - E57"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0900-7501","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43691319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vidar Andersen, Marius Steiro Fimland, Atle Saeterbakken
{"title":"Trunk Muscle Activity in One- and Two-Armed American Kettlebell Swing in Resistance-Trained Men.","authors":"Vidar Andersen, Marius Steiro Fimland, Atle Saeterbakken","doi":"10.1055/a-0869-7228","DOIUrl":"https://doi.org/10.1055/a-0869-7228","url":null,"abstract":"<p><p>The aim of the study was to compare the one-armed vs. two-armed American kettlebell swing on trunk muscle activation. Fifteen resistance-trained men performed ten repetitions of both exercises using a 14-kg kettlebell. Surface EMG from the erector spinae, rectus abdominis and external oblique muscles were collected on both sides of the trunk. The erector spinae activation during the one-armed swing was 14-25% higher on the contralateral compared to the ipsilateral side in both exercises (Cohen's d effect size [ES]=0.41-0.71, <i>p</i> ˂ 0.001-0.034). Further, the contralateral side was 14% more activated during the two-armed swing compared to the ipsilateral side during the one-armed swing (ES=0.43, <i>p</i> =0.009). For the rectus abdominis muscle, the two-armed swing induced higher activation of the rectus abdominis compared to the one-armed swing on both the contralateral (40%, ES=0.48, <i>p</i> =0.040) and ipsilateral side (59%, ES=0.83, <i>p</i> =0.002). There were no differences for the external oblique muscle ( <i>p</i> =0.495-0.662). In conclusion, the trunk activation patterns of the two exercises were different, which could be explained by different biomechanics in the two exercises, and could thus have complimentary effects. We recommend that both unilateral and bilateral execution of the American kettlebell swing is included over time.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E12-E18"},"PeriodicalIF":0.0,"publicationDate":"2019-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0869-7228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37091653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Florian Beaudouin, Karen Aus der Fünten, Tobias Tröß, Claus Reinsberger, Tim Meyer
{"title":"Time Trends of Head Injuries Over Multiple Seasons in Professional Male Football (Soccer).","authors":"Florian Beaudouin, Karen Aus der Fünten, Tobias Tröß, Claus Reinsberger, Tim Meyer","doi":"10.1055/a-0808-2551","DOIUrl":"https://doi.org/10.1055/a-0808-2551","url":null,"abstract":"<p><p>The present study aimed to investigate time trends of head injuries and their injury mechanisms since a rule change as monitoring may help to identify causes of head injuries and may advance head injury prevention efforts. Based on continuously recorded data from the German football magazine \"kicker Sportmagazin <sup>®</sup> \" as well as other media sources, a database of head injuries in the 1 <sup>st</sup> German male Bundesliga was generated comprising 11 seasons (2006/07-2016/17). Injury mechanisms were analysed from video recordings. Injury incidence rates (IR) and 95% confidence intervals (95% CI) were calculated. Time trends were analysed via linear regression. Two hundred thirty-eight match head injuries occurred (IR 1.77/1000 match hours, 95% CI 1.56-2.01). There were no significant seasonal changes, expressed as annual average year-on-year change, in IRs over the 11-year period for total head injuries (p=0.693), facial/head fractures (p=0.455), lacerations/abrasions (p=0.162), and head contusions (p=0.106). The annual average year-on-year increase for concussion was 6.4% (p=0.004). Five head injury mechanisms were identified. There were no seasonal changes in injury mechanisms over the study period. The concussion subcategory increased slightly over the seasons, which may either be a result of increasing match dynamics or raised awareness among team physicians and players.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E6-E11"},"PeriodicalIF":0.0,"publicationDate":"2019-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0808-2551","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36911840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Activity Profiles by Position in Youth Elite Soccer Players in Official Matches","authors":"S. Pettersen, T. Brenn","doi":"10.1055/a-0970-6550","DOIUrl":"https://doi.org/10.1055/a-0970-6550","url":null,"abstract":"[This corrects the article DOI: 10.1055/a-0883-5540.].","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E65 - E65"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0970-6550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47016855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Moira Cameron McCormack, Howard Bird, Akbar de Medici, Fares Haddad, Jane Simmonds
{"title":"The Physical Attributes Most Required in Professional Ballet: A Delphi Study.","authors":"Moira Cameron McCormack, Howard Bird, Akbar de Medici, Fares Haddad, Jane Simmonds","doi":"10.1055/a-0798-3570","DOIUrl":"https://doi.org/10.1055/a-0798-3570","url":null,"abstract":"<p><p><b>Background</b> It is commonly accepted that dancers are undoubtedly athletes, with ballet perhaps the most demanding dance form. No previous study has sought to define the physical attributes most desired for classical ballet by professional companies and vocational schools. These are likely to include both aesthetic features and attributes that reduce the risk of injury as well as enhance performance. <b>Method</b> An initial survey question using the modified Delphi technique was sent using Opinio Survey Software to a selected international expert panel. This was drawn both from those involved in selection of elite professional ballet dancers, and the international medical professionals involved in the care of dancers. The first questionnaire was open-ended to scope for all the physical attributes most favoured by the professional experts. <b>Results</b> There were 148 responses from the panel of international experts. In total 34 physical attributes were suggested. The 2 most recommended physical criteria for selection into the profession were overall flexibility and overall strength. These results are discussed in the context of the published literature on the mechanics, anatomy and physiology of ballet. <b>Conclusion</b> Flexibility and strength are the 2 features most sought after in elite ballet dancers.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E1-E5"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0798-3570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36800423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Acute Effect of Active and Passive Static Stretching on Elastic Modulus of the Hamstrings.","authors":"Gakuto Nakao, Keigo Taniguchi, Masaki Katayose","doi":"10.1055/a-0822-3474","DOIUrl":"https://doi.org/10.1055/a-0822-3474","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1055/a-0733-6957.].</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 6","pages":"E200"},"PeriodicalIF":0.0,"publicationDate":"2018-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0822-3474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36847220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dance Functional Outcome Survey: Development and Preliminary Analyses.","authors":"Shaw Bronner, Igor Reis Urbano","doi":"10.1055/a-0729-3000","DOIUrl":"10.1055/a-0729-3000","url":null,"abstract":"<p><p>The Dance Functional Outcome Survey (DFOS) was developed as a self-report questionnaire for healthy and injured ballet and modern dancers, focusing on the low back and lower extremities. Our aim was to determine factor analysis and internal consistency of the 16 items and to investigate test-retest and equivalence reliability and validity of the DFOS compared to three orthopedic outcomes instruments. Data were collected from 80 healthy and injured adult ballet and modern pre-professional and professional dancers. DFOS Likert-type and visual analog scales were completed twice within 4-9 days to study test-retest reliability. The Cincinnati Knee Rating System, Olerud and Molander Foot-Ankle Questionnaire, and Oswestry Disability Index were used to assess concurrent validity using intraclass correlation coefficients in SPSS, p<0.05. To determine instrument dimensions and internal consistency of the items, we conducted exploratory factor analysis and calculated Cronbach's α in JASP. DFOS demonstrated single factor loading and high Cronbach's α; high test-retest repeatability and equivalence reliability ( <i>r</i> =0.74-0.99) and acceptable criterion validity compared to the orthopedic outcomes instruments (r≥0.67). These results support further study of a revised 14 item Likert-version DFOS for repeatability, validity and responsiveness.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 6","pages":"E191-E199"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8a/2b/10-1055-a-0729-3000.PMC6277239.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36773009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Satoru Hashizume, Hiroaki Hobara, Yoshiyuki Kobayashi, Mitsunori Tada, Masaaki Mochimaru
{"title":"Inter-Individual Variability in The Joint Negative Work During Running.","authors":"Satoru Hashizume, Hiroaki Hobara, Yoshiyuki Kobayashi, Mitsunori Tada, Masaaki Mochimaru","doi":"10.1055/a-0669-0885","DOIUrl":"10.1055/a-0669-0885","url":null,"abstract":"<p><p>The inter-individual variability of running technique is an important factor affecting the negative work of lower extremity joints that leads to muscle damage. Our study examines the relationships between the negative work of the lower extremity joints and the associated mechanical parameters that account for inter-individual variability in the negative work. Twenty-four young male adults were asked to run on a runway at a speed of 3.0 m·s <sup>-1</sup> . Multiple linear regression analysis was conducted to examine the relationships between the negative work and the associated mechanical parameters for each lower extremity joint. With regards to the results, 76.3% of inter-individual variability in the negative work of the hip joint was accounted for by inter-individual variabilities in the corresponding moment (25.4%) and duration (50.9%). For the knee joint, the inter-individual variabilities in the moment (40.6%), angular velocity (24.5%), and duration (23.8%) accounted for 88.9% of inter-individual variability in the negative work. The inter-individual variability in the moment of the ankle joint alone accounted for 89.3% of the inter-individual variability in the corresponding negative work. These results suggest that runners can change the negative work by adapting their running techniques to influence the relevant mechanical parameter values; however, major parameters corresponding to the change in the negative work are not the same among the lower extremity joints.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 5","pages":"E157-E162"},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0669-0885","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36773111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dietmar Goebel, Frank Drollinger, Andrea Drollinger
{"title":"Lumbar Spine Injuries: Primary Prevention in Amateur and Professional Golf Players.","authors":"Dietmar Goebel, Frank Drollinger, Andrea Drollinger","doi":"10.1055/a-0748-5443","DOIUrl":"https://doi.org/10.1055/a-0748-5443","url":null,"abstract":"<p><p>In the sport of golf, there is no standard teaching method or swing technique even though golf is known for overuse injuries. This prospective study was to analyze classic swing kinematics in comparison with the Free-Release <sup>®</sup> method and to define a physiological golf swing. Two hundred eighty-three players, age 50-59 years, were included in the study. For both swing techniques, examination addressed swing visualization, center of pressure (COP), center of mass (COM), as well as pelvic movement in relationship to different standing widths. The position of the spine was evaluated in the frontal and lateral planes. Using the classic technique, no golfer was able to describe his swing parameters, which would be necessary for visualization and to tolerate physiological range of movement, whereas players using the Free-Release method <sup>®</sup> were able to provide such a description. COP and COM showed pathological swing mechanics for the classic technique, whereas for the Free-Release method mechanics were physiological. We conclude that to prevent lumbar spine injury, the classic swinging technique, which is characterized by lateral shear forces, static and dynamic pelvic side bending while rotating with high force against the spine, and an unbalanced COM and COP, should be substituted by the Free-Release technique as a new physiological guideline.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 6","pages":"E179-E184"},"PeriodicalIF":0.0,"publicationDate":"2018-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0748-5443","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36773007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Explosive Resistance Training Using Elastic Bands in Young Female Team Handball Players.","authors":"Vidar Andersen, Marius Steiro Fimland, Kristoffer Toldnes Cumming, Øyvind Vraalsen, Atle Hole Saeterbakken","doi":"10.1055/a-0755-7398","DOIUrl":"https://doi.org/10.1055/a-0755-7398","url":null,"abstract":"<p><p>The aim of the study was to examine the effects of full-body elastic resistance band training in young female team handball players. 12 players (16.5±0.7 years, 166±5.0 cm, 65.9±8.8 kg) completed an 11-week control period followed by a 9-week elastic resistance band training period. The training program, consisting of 6 exercises, was incorporated into the teams' regular handball training sessions 3 times per week. Each exercise was performed with 3 sets of 6-10 explosive repetitions (5-9 on the Borg CR10 Scale®). The maximal power output in squat and bench press, jump height, throwing velocity and repeated agility run was tested before and after the control and training periods. The elastic resistance band period had greater improvement vs. the control period for countermovement jump with or without arm swing (10% vs. -6 to -2%) and power output at lighter loads (10 to 12% vs. -6 to 0%). For the 3 throwing velocity tests, there were tendencies towards increased velocity in the elastic resistance band period compared to the control period ( <i>p</i> =0.07-0.10). For the repeated agility run, there was a reduction in the mean and fastest time compared to the training period (2 to 3% vs. -1 to 1%). In conclusion, a brief, elastic resistance band training program, incorporated into the regular handball training sessions, improved explosive lower-limb performance in young female handball players more than handball training alone.</p>","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 6","pages":"E171-E178"},"PeriodicalIF":0.0,"publicationDate":"2018-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0755-7398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36773113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}