Journal of athletic enhancement最新文献_第6页

Within-and Between-Session Reliability of Ultrasound Imaging Measures in Vastus Lateralis and Gastrocnemius Medialis Muscles 股外侧肌和腓肠肌内侧肌超声成像测量的内、间隙可靠性

Journal of athletic enhancement Pub Date : 2018-01-01 DOI: 10.4172/2324-9080.1000306

Scott Dj, P. Marshall, M. Ditroilo

{"title":"Within-and Between-Session Reliability of Ultrasound Imaging Measures in Vastus Lateralis and Gastrocnemius Medialis Muscles","authors":"Scott Dj, P. Marshall, M. Ditroilo","doi":"10.4172/2324-9080.1000306","DOIUrl":"https://doi.org/10.4172/2324-9080.1000306","url":null,"abstract":"Objective: To determine the within- and between-session reliability of ultrasonography and imaging analysis for measuring muscle architecture of the vastus lateralis (VL) and gastrocnemius medialis (GM) in males who play recreational sport. Methods: Twelve (n=12) males who regularly engage in recreational sport (age: 26.83 ± 4.45 years) participated in this study. Two experimental sessions were conducted 7 days apart. Muscle thickness (MT), pennation angle (Pang) and fascicle length (Lf) for both muscles were determined. Two ultrasound images of the VL were recorded with participants lying supine with the knee at 30o flexion and a further two images were obtained following a 20 min interval. One week later, two images were recorded during the second session. This process was repeated for the GM with participants lying prone with their muscles relaxed and ankle joint in a neutral position (90˚). Results: The within- and between-session minimum detectable changes were: VL MT=0.16 cm, 0.12 cm; VL Pang=0.76˚, 0.99˚; VL Lf=0.84 cm, 0.94 cm; GM MT=0.08 cm, 0.11 cm; GM Pang=0.97˚, 1.45˚; GM Lf=0.36 cm, 0.50 cm, respectively. Other reliability statistics included were intra-class correlation coefficients, coefficient of variation and typical error which also expressed high levels of reliability. Conclusion: The findings of this study suggest that B-mode ultrasonography can be used in confidence by novice radiographers when investigating changes in muscle architecture in males who regularly engage in recreational sport. The reliability statistics reported in this study can be used by researchers for sample size estimation in future studies.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"112 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80854481","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}

引用次数: 0

Rehabilitation Engagement and Adherence Changes in Injured Athletes 受伤运动员康复参与和依从性的变化

Journal of athletic enhancement Pub Date : 2018-01-01 DOI: 10.4172/2324-9080.1000305

S. Langdon, Fletcher Rb

{"title":"Rehabilitation Engagement and Adherence Changes in Injured Athletes","authors":"S. Langdon, Fletcher Rb","doi":"10.4172/2324-9080.1000305","DOIUrl":"https://doi.org/10.4172/2324-9080.1000305","url":null,"abstract":"Objective: The purpose of the current study was to examine the relationship between an athlete’s rehabilitation engagement and adherence, over time. Method: 21 injured athletes participated in this research aged between 18 to 38 years of age. Data was collected over 8 weeks with regression analysis revealing relationships between rehabilitation adherence and rehabilitation engagement over time. Results: The analysis suggested that injured athletes that are high in rehabilitation adherence at the beginning of their treatment become less adherent at a slower rate than injured athletes who are initially low in adherence. Athletes who are highly engaged with their rehabilitation display a slower reduction in engagement than athletes who initially have low levels of engagement. As an athlete becomes less adherent they will experience a drop in their engagement levels. The reduction in engagement accelerates as adherence decreases. Conclusion: By helping to increase the understanding of the sports injury process and the implications that it can have on sports injury rehabilitation, it is hoped that this research will have positive effects on injured athletes’ rehabilitation processes.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90348467","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}

引用次数: 0

Effects of Wearing a Custom-Made Mouthguard during Static Exercise on Masticatory Muscle Activity in Athletes with Cerebral Palsy 静态运动时佩戴特制护齿对脑瘫运动员咀嚼肌活动的影响

Journal of athletic enhancement Pub Date : 2018-01-01 DOI: 10.4172/2324-9080.1000307

Akihiro Yasuda, Hiroshi Suzuki, Yoshihiro Iwata, Hiroki Takeuchi, Arisa Ebato, Tatsuo Yagi, M. Kawara, O. Komiyama

{"title":"Effects of Wearing a Custom-Made Mouthguard during Static Exercise on Masticatory Muscle Activity in Athletes with Cerebral Palsy","authors":"Akihiro Yasuda, Hiroshi Suzuki, Yoshihiro Iwata, Hiroki Takeuchi, Arisa Ebato, Tatsuo Yagi, M. Kawara, O. Komiyama","doi":"10.4172/2324-9080.1000307","DOIUrl":"https://doi.org/10.4172/2324-9080.1000307","url":null,"abstract":"Aim: Oral health is closely related to the general condition of athletes. Oral diseases can decrease their performance by affecting their concentration during games and practice sessions. Appropriate education is therefore required regarding the importance of dental support. We introduced periodic dental examinations and fabricated custom-made mouthguards (CMGs) for athletes with cerebral palsy (CP). This study aimed to determine the effects of wearing a CMG on masticatory muscle activities in CP athletes while measuring center of gravity (COG) sway. Materials and Methods: Thirteen athletes with CP (male, n=12; mean age, 27.3 ± 8.96 y) and 10 healthy male controls (mean age, 28.5 ± 1.35 y) participated in the present study. The CMG comprised 2-mm-thick polyolefin sheeting. All participants underwent dental checks and occlusal contact areas were measured with and without a CMG. We simultaneously measured gravitational sway at the COG with the eyes open, as well as masticatory (masseter and digastric) muscle activities with or without a CMG. Data were statistically analyzed using two-way mixed analyses of variance. Results: Indices for decayed, missing and filled teeth did not significantly differ between athletes and controls. However, the occlusal contact area significantly increased in athletes when wearing a CMG. Although COG sway slightly differed between having eyes open and closed in athletes, masticatory muscle activity increased and COG sway decreased. Conclusion: The findings suggest that wearing a CMG might change the modality of masticatory muscle activity in athletes with CP and might help to improve balance during static exercise.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"1 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84042424","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}

引用次数: 0

Hamstring Flexibility Can Predict Lower Body Anaerobic Power Production in Recreationally Trained College Males 腿筋柔韧性可以预测休闲训练的大学男性下体无氧能量产生

Journal of athletic enhancement Pub Date : 2018-01-01 DOI: 10.4172/2324-9080.1000308

L. Kelly, Tyler Schnorf, Allan Knox

引用次数: 0

Regular Exercise confers Cardiac Protection via PKC Pathway 定期运动可通过PKC通路保护心脏

Journal of athletic enhancement Pub Date : 2017-10-25 DOI: 10.4172/2324-9080.1000275

Kwang-Hoon Oh

{"title":"Regular Exercise confers Cardiac Protection via PKC Pathway","authors":"Kwang-Hoon Oh","doi":"10.4172/2324-9080.1000275","DOIUrl":"https://doi.org/10.4172/2324-9080.1000275","url":null,"abstract":"Electrophysiological studies suggest long-term exercise can demonstrate cardio-protective effects. Recent evidence from our laboratory suggests there may also be a key role of protein kinase C (PKC)-dependent pathways in cardio-protection. This study aimed to assess the effects of regular exercise of different volumes on total PKC levels, phosphorylated PKC levels, and the cellular distribution of PKC. To confirm these findings we conducted electrophysiological studies. Adult (12 weeks) male mice were divided into two groups, daily exercise (DE) and no exercise (NE) 40 min for 8 weeks. ECG traces were examined following the last exercise session and myocytes were isolated enzymatically for cell shortening and immune blotting studies. DE in mice led to increased myocyte shortening vs. NE. However, the degree of myocyte shortening was less in the presence of the drug chelerythine, protein expression also constantly decreased in chelerythrine treated cells. ECG data were supported in PKC knockout and wild type exercised mice. These data suggest, compared with no exercise, 8 weeks of regular exercise training in mice contributes to increased myocyte shortening via activation of the PKC pathway.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"49 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91267316","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}

引用次数: 0

Pre-recorded Power Statement Usage on Collegiate Male Hockey Athletes 预录的大学男子曲棍球运动员力量陈述的使用

Journal of athletic enhancement Pub Date : 2017-10-12 DOI: 10.4172/2324-9080.1000263

Beau Leaf, Lorry Youll, S. Murray

{"title":"Pre-recorded Power Statement Usage on Collegiate Male Hockey Athletes","authors":"Beau Leaf, Lorry Youll, S. Murray","doi":"10.4172/2324-9080.1000263","DOIUrl":"https://doi.org/10.4172/2324-9080.1000263","url":null,"abstract":"Athletes during sport performance encounter stress levels which affect performance outcome. Pre-performance rituals and/or practices vary amongst individual athletes and assist the athlete with their ability to focus during performance. Athletes attain the ability to control distractions through exercises of mental preparation such as guided imagery, observation of performance, and sport-specific power statements. The athletes involved in the current study were members of a team which is a competitive performance club league in the American Collegiate Hockey Association (ACHA). A recording consisting of 40 hockey specific power statements was randomly assigned to 10 members of the team by an independent source and the other 10 members received a recording asking the athlete to continue on their normal pre-practice routine. The athletes were advised to listen to the recording directly before the practice and then were observed. Data was collected on the pass completion/ incompletion and goal completion/incompletion pre-treatment on a separate occasion and data collection was repeated after treatment was applied. It was predicted that the completion of goals and passes would increase in those athletes receiving treatment and the results in the athletes not treated would remain the same as in the pre-treated results. Results of the data collected show a significant relationship to the intended result in passing completion and a positive trend in goal completion in the athletes who received the treatment. Results of the athletes not receiving treatment were the same as the intended result, an acute deviation from pre-treatment statistics.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"22 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90780514","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}

引用次数: 0

Differences in Throwing Kinematics among Youth Baseball Pitchers and Football Quarterbacks 青少年棒球投手和橄榄球四分卫投掷运动学的差异

Journal of athletic enhancement Pub Date : 2017-10-12 DOI: 10.4172/2324-9080.1000272

J. Washington, S. Gascon, Kathryn Clardy, G. Oliver

引用次数: 0

Musculoskeletal Injury Rates in Multiday Marathon Runners Performing Ten Consecutive Marathons on a Repeat Course 多日马拉松运动员在重复路线上连续跑10次马拉松的肌肉骨骼损伤率

Journal of athletic enhancement Pub Date : 2017-08-12 DOI: 10.4172/2324-9080.1000280

K. Small, N. Relph

引用次数: 4

High-Density Lipoprotein Cholesterol Subfractions in Collegiate Female Volleyball Players 大学女排运动员高密度脂蛋白胆固醇亚组

Journal of athletic enhancement Pub Date : 2017-08-09 DOI: 10.4172/2324-9080.1000268

K. Oda, K. Miyahara, Kayoko Matsuo, S. Mizuno, H. Imamura

引用次数: 0

Is AGT The New Gene For Muscle Performance? An Analysis of AGT, ACTN3, PPARA and IGF2 on Athletic Performance, Muscle Size and Body Fat Percentage in Caucasian Resistance Training Males AGT是肌肉表现的新基因吗?AGT、ACTN3、PPARA和IGF2对白种人抗阻训练男性运动成绩、肌肉大小和体脂率的影响分析

Journal of athletic enhancement Pub Date : 2017-08-09 DOI: 10.4172/2324-9080.1000266

Lucy Ellis, C. Collins, James Brown, Wes Pooley

{"title":"Is AGT The New Gene For Muscle Performance? An Analysis of AGT, ACTN3, PPARA and IGF2 on Athletic Performance, Muscle Size and Body Fat Percentage in Caucasian Resistance Training Males","authors":"Lucy Ellis, C. Collins, James Brown, Wes Pooley","doi":"10.4172/2324-9080.1000266","DOIUrl":"https://doi.org/10.4172/2324-9080.1000266","url":null,"abstract":"Genetics has long been the field of athletic performance that has been forsaken, however with new advancements in testing ability and availability, certain genes have come to the forefront of physical ability, genes such as ACE and ACTN3 are known colloquially as the FIT genes. This analysis looked into 211 resistance training male Caucasians, the genes and SNPs that were analysed were AGT (rs699), ACTN3 (rs1815739), PPARA (rs4253778) and IGF2 (rs680). Certain gene alleles appear to be interlinked in this group, with certain variants being in higher numbers in this athlete group going against studies on mass population groups. The study suggests that when a favourable genetic profile is combined with correct training it can have an advantageous effect on the individual. However, these results are speculative until a larger group can be analysed, yet, this provides a very good window of opportunity for further analysis into these elusive FIT genes. The gene AGT (rs699) C allele appears to show a good correlation to power performance activity, possibly by increasing the activity of angiotensin II (a skeletal muscle growth factor), however there is a possible link with AGT, fat mass and power to weight ratio. The C allele in rs181739 and G allele in rs680 appear to positively influence back muscle strength performance, although the G allele in rs4253778 appears to have a negative influence upon muscle performance.","PeriodicalId":90574,"journal":{"name":"Journal of athletic enhancement","volume":"102 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2017-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84828926","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}

引用次数: 3