Open Access Journal of Sports Medicine最新文献

{"title":"Ultra-Short Race-Pace Training (USRPT) In Swimming: Current Perspectives","authors":"F. Nugent, T. Comyns, P. Kearney, G. Warrington","doi":"10.2147/OAJSM.S180598","DOIUrl":"https://doi.org/10.2147/OAJSM.S180598","url":null,"abstract":"Abstract The last decade has seen a dramatic rise in sports science research due to the ever-increasing professionalization of sport. As a result, many alternative training methodologies that challenge traditional training philosophies have emerged. In the sport of swimming, ultra-short race-pace training (USRPT) was recently proposed. The aim of this article was to provide current perspectives on USRPT in competitive swimming. A systematic review was conducted to determine the effects of USRPT on performance in competitive swimmers. Of the 1347 studies retrieved, 1332 were excluded. The full-texts of 15 studies were assessed for eligibility. However, all 15 studies were excluded as the intervention did not consist of USRPT. Consequently, there are concerns surrounding USRPT as it is not currently based on peer-reviewed published literature. In addition, the recommendations within USRPT to avoid resistance training, cross-training activities, training intensities less than race-pace velocity and part practice swimming drills are highly controversial and lack scientific evidence. There is evidence to suggest that USRPT is a derivative of high-intensity training (HIT) and there is peer-reviewed published literature available to support the effects of HIT on performance in competitive swimmers. Swimming coaches and sports scientists are advised to consider the applications of USRPT with caution. The authors suggest that USRPT is a training method, which may be incorporated within a holistic periodized training program that includes a variety of training methods and stimuli. Future research should involve a randomized controlled intervention of USRPT in competitive swimmers.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"133 - 144"},"PeriodicalIF":2.4,"publicationDate":"2019-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S180598","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44495174","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}

{"title":"Bone health of middle-aged and older surfers","authors":"Vini Simas, W. Hing, E. Rathbone, R. Pope, B. Beck, M. Climstein","doi":"10.2147/OAJSM.S209043","DOIUrl":"https://doi.org/10.2147/OAJSM.S209043","url":null,"abstract":"Purpose Given the lack of research investigating surfing and bone health, we aimed to assess the bone mineral density (BMD) of middle-aged and older surfers. Patients and methods In a cross-sectional observational design, we compared a group of middle-aged and older surfers to a group of non-surfers, age- and sex-matched controls. Participants were males, aged between 50 and 75 years. Volunteers were assessed for body mass index, bone-specific physical activity questionnaire (BPAQ) scores, daily calcium intake, and alcohol intake. Primary outcomes included BMD at the femur and lumbar spine (LS), and T-score, assessed via dual-energy X-ray absorptiometry. Bone biomarkers were also analyzed. Results A total of 104 participants (59 surfers and 45 controls) were assessed. Groups were similar with regards to all demographic characteristics except for percentage of lean mass (higher in surfers, mean difference [MD] +2.57%; 95% CI 0.05–5.09; p=0.046) and current BPAQ score (lower in surfers; MD −0.967; 95% CI −0.395 to −1.539; p=0.001). Surfers had a mean surfing experience of 41.2 (SD ±11.8) years and mean surfing exposure of 26.9 (SD ±15.0) hours/month. Controls were divided into two groups, according to their main physical activity: weight-bearing/high intensity (WBHI) and non-weight-bearing/low intensity (NWBLI). When compared to NWBLI controls, surfers had higher LS BMD (MD +0.064; 95% CI 0.002–0.126; p=0.041) and higher T-score (MD +0.40; 95% CI 0.01–0.80; p=0.042); however, surfers had a lower T-score than the WBHI group (MD −0.52; 95% CI −0.02 to −1.0; p=0.039). No other differences were found between groups. Conclusion The findings of this study support our hypothesis that regular surfing may be an effective physical activity for middle-aged and older men to decrease bone deterioration related to aging, as we identified positive results for surfers in relation to primary outcomes.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"123 - 132"},"PeriodicalIF":2.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S209043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43676417","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}

{"title":"Effect of poor cooperation between coaching and medical staff on muscle re-injury in professional football over 15 seasons","authors":"Mourad Ghrairi, T. Loney, R. Pruna, N. Malliaropoulos, X. Valle","doi":"10.2147/OAJSM.S221292","DOIUrl":"https://doi.org/10.2147/OAJSM.S221292","url":null,"abstract":"Background Muscle injury is the most common type of injury in football. Previous research has focused on traditional risk factors (eg, age, injury history, muscle imbalance/inflexibility) contributing to muscle re-injury. The effect of poor cooperation between the coaching and medical teams on the risk of re-injury remains unexplored in the sports medicine football literature. Purpose Examine the effect of poor cooperation between coaching and medical teams on muscle re-injury in professional football. Methods Retrospective review of the medical files of 97 footballers of a professional team in Dubai over 15 consecutive seasons (2002–2017). Medical team recorded all injuries in each player’s file. Data on the perceived level of cooperation between coaching and medical teams were available in the daily meeting notes from the head of the medical team. The level of perceived cooperation was ranked on a three-point Likert scale by the head of the medical team and depended on whether the coaching team accepted the player injury (excellent cooperation), brought some suggestion after discussion with the medical team (normal cooperation) or rejected it (poor cooperation). Results In total, 338 indirect muscle injuries (21 re-injuries) were recorded during 15 consecutive seasons., There was a significant increase in the mean number of total injuries (mean ± SE, 95% CI; 16±2, 12–21; P<0.0001), mean number of indirect muscle injuries (12±1, 95% CI 10–14; P<0.0001), and indirect muscle re-injuries (4±1, 95% CI 3–5; P<0.0001) during seasons with a poor perceived level of cooperation compared to seasons with a normal/excellent perceived level of cooperation. Conclusion Findings suggest that poor cooperation between coaching and medical teams may increase the risk of muscle re-injury in professional football. Future studies conducted in different clubs, leagues, countries, and even sports are required to further explore the effect of cooperation between coaching and medical teams on the risk of re-injury.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"107 - 113"},"PeriodicalIF":2.4,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S221292","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43905776","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}

{"title":"On-field assessment of concussion: clinical utility of the King-Devick test","authors":"Andrew D. Legarreta, N. Mummareddy, A. Yengo-Kahn, S. Zuckerman","doi":"10.2147/OAJSM.S171815","DOIUrl":"https://doi.org/10.2147/OAJSM.S171815","url":null,"abstract":"Abstract Sport-related concussion (SRC) is an important public health concern with up to 3.8 million SRCs occurring each year. As the incidence and rate of SRC increases, reliable and valid tools for diagnosis and management are needed. The King-Devick (K-D) test assesses a patient’s visual function based on reading a series of numbers as well as counting both time to completion and errors. Its rapid administration time and simplicity make the K-D test a potentially useful SRC diagnostic tool, though limitations exist in baseline testing and what constitutes an abnormal score. Additionally, the K-D tests should never be used in isolation to diagnose a concussion, but rather as one test in conjunction with additional clinical measures, as part of an individualized approach to each patient. The current review examines the clinical utility of the K-D test.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"115 - 121"},"PeriodicalIF":2.4,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S171815","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43470135","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}

{"title":"Hamstring injuries and Australian Rules football: over-reliance on Nordic hamstring exercises as a preventive measure?","authors":"S. Milanese, R. Eston","doi":"10.2147/OAJSM.S212008","DOIUrl":"https://doi.org/10.2147/OAJSM.S212008","url":null,"abstract":"Abstract Nordic hamstring exercises (NHE) are promoted as an evidence-based strategy for reducing the prevalence of hamstring injuries in football, with a number of studies showing a significant reduction in hamstring injury rates following implementation of a NHE-based program. However, most of the research to date has been undertaken in soccer with less research carried out in other football codes. Despite this lack of relevant evidence, NHE has recently become popular as a preventative measure in Australian Rules football (ARF) teams; however, hamstring injuries remain high. This paper reviews the literature associated with the use of NHE for ARF players and questions the appropriateness of this exercise approach as a preventative measure for hamstring injuries in this sport. When considering the use of a preventative exercise program, such as the NHE, the specific risks associated with the sporting activity should be considered and the evidence reviewed in light of this. Whilst NHE provides an easy way to do eccentric exercises, the movement does not replicate what is needed in the real world for ARF and should therefore be included in a hamstring injury prevention program in this code with caution.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"99 - 105"},"PeriodicalIF":2.4,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S212008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47386309","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}

{"title":"Blood pressure lowering effects of a novel isometric exercise device following a 4-week isometric handgrip intervention.","authors":"Daniel S Baddeley-White, Cheri L McGowan, Reuben Howden, Benjamin Dh Gordon, Peter Kyberd, Ian L Swaine","doi":"10.2147/OAJSM.S193008","DOIUrl":"10.2147/OAJSM.S193008","url":null,"abstract":"<p><p><b>Background:</b> Hypertension is the leading risk factor for global mortality. Isometric resistance exercise training reduces blood pressure (BP). However, the protocols used are often limited by cost/immobility and the use of rigid exercise modalities. In response, a novel more versatile, isometric exercise (IE) device, the IsoBall (IB) was created. <b>Purpose:</b> The aim of this study was to test the BP-lowering effectiveness of this prototype. <b>Methods:</b> Twenty-three healthy participants (29.10±2.19 years old, 173.95±3.83 cm, 75.43±5.06 kg, SBP 127.10±10.37 mmHg, DBP 70.40±6.77 mmHg) were randomly allocated to either a control group (CON) or 2 isometric handgrip (IHG) training groups that used the Zona plus (ZON) and IB devices. The intervention groups completed 3 sessions each week of 4, 2 min IHG at 30% maximal voluntary contraction, with a 1-min rest, for 4 weeks. Resting BP, heart rate (HR) and IHG strength were measured in all groups at baseline and postintervention. <b>Results:</b> Postintervention systolic BP (SBP) was significantly lower in both ZON (114.5±8.2 mmHg, <i>p</i> = 0.000) and IB (119.9±7.0 mmHg, <i>p</i> = 0.000) compared to control (131.0±12.4 mmHg). Postintervention diastolic BP (DBP) was reduced in both intervention groups (ZON 66.6±7.4 mmHg, <i>p</i> = 0.004; IB 65.7±10.0 mmHg, <i>p</i> = 0.012) compared to CON (71.1±8.8 mmHg). Mean arterial pressure (MAP) was reduced in both groups (ZON 82.6±6.8 mmHg, <i>p</i> = 0.000; IB 84.3±9.1 mmHg, <i>p</i> = 0.000) compared to control (91.0±9.7 mmHg). No significant changes were seen in HR or strength (<i>p</i> > 0.05). <b>Conclusion:</b> The results of this study indicate that both the ZON and IB devices elicit significant SBP, DBP and MAP reductions. Despite the ZON group having larger reductions in BP, no significant differences were found between the two devices. Thus, this study indicates the IB device to be an effective alternative to the ZON that can also be used to perform other IE modalities.</p>","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":"10 1","pages":"89-98"},"PeriodicalIF":1.3,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6600323/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45596474","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":"Use of viscosupplementation for the recovery of active football players complaining of knee pain [Corrigendum].","authors":"","doi":"10.2147/OAJSM.S212442","DOIUrl":"https://doi.org/10.2147/OAJSM.S212442","url":null,"abstract":"","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":" ","pages":"87"},"PeriodicalIF":2.4,"publicationDate":"2019-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S212442","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37361957","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":"Chronic exertional compartment syndrome: current management strategies.","authors":"Rafael A Buerba,&nbsp;Nickolas F Fretes,&nbsp;Sai K Devana,&nbsp;Jennifer J Beck","doi":"10.2147/OAJSM.S168368","DOIUrl":"https://doi.org/10.2147/OAJSM.S168368","url":null,"abstract":"<p><p>Chronic exertional compartment syndrome (CECS) is an underdiagnosed condition that causes lower and upper extremity pain in certain at-risk populations. Lower-extremity CECS is most often observed in running athletes and marching military members. Upper-extremity CECS is most commonly seen in rowers and professional motorcyclists. Although early outcome research on CECS has been based mostly on adult male patients, there has been an increase in the number of studies in pediatric and adolescent patient populations, particularly in females. Evaluation of CECS must include a thorough history and physical exam to rule out other causes of exertional leg pain, but differential diagnosis must remain high on the list. Needle manometry can be used to confirm diagnosis of CECS by measuring intracompartmental pressure. Operative treatment of CECS with fasciotomy has been shown to be effective in resolution of CECS, and new surgical techniques are being developed. In the pediatric population, endoscopy-assisted compartment release has provided high success rates with low complication rates. Nonoperative management of CECS is more commonly described in the literature, and consists of cessation of activities, altering foot-strike pattern, physical therapy, taping, and injections of botulinum toxin A. Nonetheless, larger samples and a more diverse population are needed to better understand the outcomes of nonoperative management. There have been fewer studies on upper-extremity CECS, given its rarity. Success has been found in the treatment of upper-extremity CECS with open fasciotomy, but more studies are needed to understand the efficacy of minimally invasive techniques in the upper extremity. Further research also needs to be done to understand why a large portion (approximately 20%) of the patient population does not experience full resolution of symptoms after fasciotomy.</p>","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":" ","pages":"71-79"},"PeriodicalIF":2.4,"publicationDate":"2019-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S168368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37344015","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":"Musculoskeletal injuries in real tennis.","authors":"J A Humphrey,&nbsp;P P Humphrey,&nbsp;A S Greenwood,&nbsp;J L Anderson,&nbsp;H S Markus,&nbsp;A Ajuied","doi":"10.2147/OAJSM.S198500","DOIUrl":"https://doi.org/10.2147/OAJSM.S198500","url":null,"abstract":"<p><p><b>Introduction:</b> Real tennis is a growing, unique, and well-established sport. To date, there has been no epidemiological data on real tennis injuries. The primary aim of this retrospective study is to record the incidence and document any trends in real tennis musculoskeletal injuries, so as to improve injury awareness of common and possibly preventable injuries. <b>Methods:</b> A surveillance questionnaire e-mailed to 2,036 Tennis & Rackets Association members to retrospectively capture injuries sustained by amateur and professional real tennis players over their playing careers. <b>Results:</b> A total of 485 (438 males and 47 females) questionnaires were fully completed over 4 weeks. A total of 662 musculoskeletal injuries were recorded with a mean of 1.4 injuries per player (range 0-7). The incidence of sustaining an acute real tennis musculoskeletal injury is 0.4/1000 hrs. The three main anatomical locations reported injured were elbow 15.6% (103/662), knee 11.6% (77/662), and face 10.0% (66/662). The most common structures reported injured were muscle 24% (161/661), tendon 23.4% (155/661), ligament 7.0% (46/661), soft tissue bruising 6.5% (43/661), and eye 6.2% (41/661). The majority of the upper limb injuries were gradual onset (64.7%, 143/221), and the lower limb injuries were sudden onset (72.0%, 188/261). <b>Conclusion:</b> This study uniquely provides valuable preliminary data on the incidence and patterns of musculoskeletal injuries in real tennis players. In addition, it highlights a number of reported eye injuries. The study is also a benchmark for future prospective studies on academy and professional real tennis players.</p>","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":" ","pages":"81-86"},"PeriodicalIF":2.4,"publicationDate":"2019-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S198500","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37344016","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":"Clinical utility of tensiomyography for muscle function analysis in athletes.","authors":"Oscar García-García,&nbsp;Alba Cuba-Dorado,&nbsp;Tania Álvarez-Yates,&nbsp;Javier Carballo-López,&nbsp;Mario Iglesias-Caamaño","doi":"10.2147/OAJSM.S161485","DOIUrl":"https://doi.org/10.2147/OAJSM.S161485","url":null,"abstract":"Abstract An exhaustive review has been made to filter the studies that have analyzed muscle function though tensiomyography (TMG) with elite or well-trained athletes. The results of this review indicate that the several protocols used in athletes to find the displacement-time curve with greater maximum radial muscle displacement showed a good-excellent reliability. TMG has been used to characterize athletes’ muscles contractile properties from specific sports disciplines, although there are very few sports that have been deeply analyzed. TMG seems to be useful to determine changes in muscles contractile properties after stimuli of competition, training or recovery. These changes have been strongly related with the fatigue produced after an effort. In addition, TMG parameters could be used to control training effects during a specific period or throughout the season being also a very useful tool to individualize athletes training loads. In this sense, it also seems to provide sports performance information in cyclic sports by relating some TMG parameters with performance indicators. On the other hand, the TMG-BCM algorithm has been used as a lateral and functional symmetry measure and as a monitoring tool for injury prevention and recovery. However, it seems to be no clear criterion that determines asymmetry degree, nor established contractile properties values as a reference to prevent or recover sports injuries. Despite the utility shown in these fields, there are still very few sports analyzed and it is really necessary to continue advancing in the knowledge of the contractile properties behavior, such as the effects of athletes’ training, competitions and injuries and even in the parameters interpretation obtained with the TMG.","PeriodicalId":51644,"journal":{"name":"Open Access Journal of Sports Medicine","volume":" ","pages":"49-69"},"PeriodicalIF":2.4,"publicationDate":"2019-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJSM.S161485","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37260616","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}