Journal of Sports Medicine and Physical Fitness最新文献

{"title":"The effect of short-term different diet modifications on postexercise metabolism following a sprint interval exercise.","authors":"Dilek Seyidoglu, Gorkem A Balci, Hakan As, Ozgur Ozkaya, Gulbin Rudarli","doi":"10.23736/S0022-4707.25.16201-4","DOIUrl":"10.23736/S0022-4707.25.16201-4","url":null,"abstract":"<p><strong>Background: </strong>A single sprint interval training (SIT) session is known to have positive effects on fat metabolism by increasing postexercise oxygen consumption (V̇O<inf>2</inf>) and fat oxidation. A short-term high-fat diet intervention has positive effects on fat oxidation pre- and postsubmaximal exercise sessions. However, there is no study on the effects of the combination of diet and a SIT session on fat oxidation. The study aimed to investigate the effect of different short-term diet modifications on fat oxidation following a SIT session.</p><p><strong>Methods: </strong>Nine healthy active males (24.3±5.27 years) participated in this investigation. Following isocaloric normal (NOR), high carbohydrate (CHO), and high fat (FAT) diet interventions with a weekly interval, participants performed an SIT session (6 repeats × Wingate all-out sprints with 4.5 minutes of rest in-between bouts). V̇O<inf>2</inf> and V̇CO<inf>2</inf> were measured by a gas analyzer throughout a 2-hour recovery period.</p><p><strong>Results: </strong>There was no significant time × session interaction for fat oxidation, V̇O<inf>2</inf>, total energy expenditure, and respiratory exchange ratio. The resting fat oxidation (g.min^-1) was statistically greater in the FAT diet (0.12±0.04) than in the CHO (0.08±0.02, P=0.012) and NOR (0.08±0.02, P=0.009) diets. Only a 2-hour postexercise fat oxidation (g.min^-1) (0.22±0.05) was statistically higher for the FAT diet compared to the CHO diet (0.15±0.05; P=0.006).</p><p><strong>Conclusions: </strong>While the study showed significant differences in fat oxidation between diets, the magnitude of the difference was so small (~0.04 g/min) that it may not have a truly effective 'real world' implication for burning extra calories.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"900-907"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144005031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isolated non-ischemic left ventricular scar in athletes: scientific and clinical rationale behind the 2023 Recommendations of the Italian Sports Cardiology Guidelines (COCIS).","authors":"Alessandro Zorzi, Francesca Graziano, Antonio Pelliccia, Franco Cecchi, Domenico Corrado","doi":"10.23736/S0022-4707.25.16822-9","DOIUrl":"10.23736/S0022-4707.25.16822-9","url":null,"abstract":"<p><p>Isolated non-ischemic left ventricular scar (NLVS) refers to the presence of significant late gadolinium enhancement (LGE) with subepicardial/midmyocardial distribution detected through cardiac magnetic resonance (CMR) in the absence of other features of a specific disease and excluding the junctional spotty pattern that is not pathological. This nosographic entity is relatively recent, emerging with the widespread clinical use of CMR. The NLVS has recently been associated with cardiac arrest in sports. On the other hand, cohort where CMR was performed on apparently healthy volunteers revealed prevalence of around 5-10% in asymptomatic athletes, suggesting that in the majority of cases the condition has a benign course. Today, the most common clinical scenario involves the diagnosis of NLVS following a CMR performed for ventricular arrhythmias, often in the absence of family history, baseline ECG abnormalities, or ventricular dysfunction on echocardiography. However, the clinical presentation can range from relatively simple isolated premature ventricular beats to complex ventricular-arrhythmias and from limited LGE to extensive (ring-like) scars, sometimes associated with a positive genetic test. Although robust evidence for risk stratification is still lacking, it is reasonable to hypothesize a correlation between phenotype severity and arrhythmic risk, analogous to other cardiomyopathies. This article explores the pathophysiological hypotheses surrounding NLVS in athletes, the appropriate diagnostic work-up, strategies for risk stratification, and the recommendations for sports eligibility outlined in the recent 2023 Italian sports cardiology guidelines (COCIS).</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":"65 7","pages":"953-961"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144528510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Visuospatial abilities and cardiorespiratory fitness in amateur sport climbers: a cross-sectional study with healthy controls.","authors":"Małgorzata Piskunowicz, Agnieszka Skopowska","doi":"10.23736/S0022-4707.25.16651-6","DOIUrl":"10.23736/S0022-4707.25.16651-6","url":null,"abstract":"<p><strong>Background: </strong>Previous research has suggested a potential link between specific cognitive functions, fitness, and various sports disciplines, yet the findings remain inconsistent. This study aimed to explore visuospatial functions and cardiorespiratory fitness in beginner and more advanced amateur sport climbers compared to healthy controls.</p><p><strong>Methods: </strong>This cross-sectional study used Guay's Visualization of Viewpoints task (GVV), the Ruff Figural Fluency Test (RFFT), the Corsi Block-Tapping Test (Corsi test), and the Simple Visual Reaction Time task (SVRT) to primarily assess visuospatial functions. Climbing experience (years, hardest sport climbing route completed) and cardiorespiratory fitness (VO2max via the Chester Step Test) were measured. All participants were assessed for anxiety levels using the State-Trait Anxiety Inventory prior to the cognitive function assessment. Participants (female N.=48, male N.=46, mean age 30.23±5.62) were divided into three groups: experienced climbers (N.=29), beginner climbers (N.=31), and healthy non-climbers as a control group (N.=34).</p><p><strong>Results: </strong>There were no statistically significant differences in cognitive performance between the three groups. However, higher VO<inf>2</inf>max correlated with better performance on the GVV in the entire sample, as well as in women separately and climbers (both men and women). Additionally, among experienced climbers, GVV performance correlated with the hardest climbing route they had completed. Male climbers who climbed more frequently each week demonstrated better executive function, as indicated by generating more unique geometric patterns in the RFFT. Overall, being physically active was associated with shorter SVRT. Lastly, men significantly outperformed women on both the GVV and SVRT. Trait anxiety, which was significantly higher in women, negatively correlated with GVV scores.</p><p><strong>Conclusions: </strong>We found no significant differences in visuospatial performance or cardiorespiratory fitness among beginner climbers, experienced climbers, and non-climbers. However, both cardiorespiratory fitness and climbing achievements were positively associated with better visuospatial abilities. While women scored lower than men on the GVV and SVRT tests, higher cardiorespiratory fitness was linked to improved GVV performance in female participants.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"945-952"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143648232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of an exercise-based rehabilitation program in patients with minor ischemic non-disabling stroke or transient ischemic attack.","authors":"Erica Brugin, Stefano Palermi, Valentina Pescatore, Silvia Compagno, Carlo Zanella, Marco Vecchiato, Ruggero Marin, Renata Volpato, Marzia Sarto, Maela Masato, Andrea Demeco, Aurora Panico, Alessandro Biffi, Franco Giada","doi":"10.23736/S0022-4707.25.16408-6","DOIUrl":"10.23736/S0022-4707.25.16408-6","url":null,"abstract":"<p><strong>Background: </strong>Ischemic stroke and transient ischemic attack (TIA) present global health challenges. While physical activity is strongly recommended for secondary prevention of these clinical conditions, there's a massive gap between guidelines and the real world. This study aimed to assess the effectiveness, safety, and feasibility of an exercise-based rehabilitation (EBR) program for patients with minor ischemic non-disabling stroke (MINDS) or TIA.</p><p><strong>Methods: </strong>Consecutive patients from the Neurology Unit of Mirano - Venice, Italy, diagnosed with MINDS or TIA, underwent a structured EBR program. The program comprised 6 weeks of supervised training in a hospital gym and 12 months of territorial gym training. Safety, feasibility, and effectiveness were evaluated through adverse events, drop-out rates, and improvements in body composition, muscular strength, and cardiopulmonary fitness.</p><p><strong>Results: </strong>The sample comprised 32 patients (mean age 66 years, 81,3% male). No adverse events were reported. During the in-hospital phase of the program, there were no dropouts, while 28% of patients ceased training during the territorial phase. After the in-hospital phase, there were significant improvements in body composition, muscular strength, and cardiopulmonary parameters. These benefits persisted at the 12-month territorial gym phase of the EBR program only for patients who continued training.</p><p><strong>Conclusions: </strong>The structured EBR program demonstrated safety, feasibility, and effectiveness in improving health parameters for MINDS or TIA patients. Such interventions promise to enhance secondary prevention and overall health outcomes in this patient group.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"932-938"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143674099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coronary artery calcium in athletes: friend or foe?","authors":"Johan Svensson, Jonatan Fridolfsson, Mats Börjesson","doi":"10.23736/S0022-4707.25.16885-0","DOIUrl":"10.23736/S0022-4707.25.16885-0","url":null,"abstract":"<p><p>Regular physical activity and high cardiorespiratory fitness protect against cardiovascular disease-related morbidity and mortality and all-cause mortality in the general population. Paradoxically, recent evidence indicates that high volumes of aerobic physical activity are associated with an increased prevalence and progression of coronary artery calcium and coronary plaques in males. This review aims to synthesize current evidence concerning the relationship between aerobic physical activity and the development of coronary atherosclerosis. Evidence indicates that engaging in moderate-to-vigorous physical activity, exceeding approximately five hours or 2000 Metabolic Equivalent of Task-mins per week, is associated with increased prevalence and progression of coronary artery calcium and coronary plaques in males. This relationship appears intensity-dependent, with higher-intensity physical activity linked to greater progression of coronary artery calcium and coronary plaques. However, females seem to be less susceptible to physical activity-associated coronary atherosclerosis. Recent findings challenge the hypothesis that increased coronary artery calcification in athletes represents plaque stabilization. Athletes with elevated coronary artery calcium levels show an increased risk of cardiovascular disease outcomes and all-cause mortality compared to those without coronary artery calcium. However, their typically higher levels of cardiorespiratory fitness and physical activity, partially mitigate this risk, particularly for all-cause mortality. For optimal cardiovascular health, evidence supports maintaining physical activity volumes aligned with World Health Organization guidelines and emphasizing moderate-intensity activity (in relative terms), as this pattern appears to protect against coronary atherosclerosis development and is associated with reduced coronary artery calcium progression and lower prevalence of mixed plaques in males.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"962-973"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144026512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Football referee's dilemma: negotiation between motor and cognitive tasks.","authors":"Semra Oguz, Nilufer Keskin Dilbay, Hilal B Can, Mehmet Inceer, Suleyman F Hangun, Zubeyir Sari, Mine G Polat","doi":"10.23736/S0022-4707.24.16068-9","DOIUrl":"10.23736/S0022-4707.24.16068-9","url":null,"abstract":"<p><strong>Background: </strong>Football referees are exposed to a substantial level of motor and cognitive load during a game and perform dual tasks (DT) to make the best decisions. The present cross-sectional study aimed to investigate referees' motor performances during DT with different cognitive loads and compare their performances and those of the athletes.</p><p><strong>Methods: </strong>Recruited 42 male referees and 60 male athletes completed the Edgren Side Step Test (ESST) as a single motor task (ST) and Multiple Object Tracking (MOT) Test at two different speeds (240 ms to 300 ms) at cognitive ST. Then, the tests were conducted concurrently as DT. Dual-task costs (DTC) were calculated.</p><p><strong>Results: </strong>The comparison of ESST ST scores revealed that the scores of the referees were significantly higher than those of the athletes (P<0.001). The ESST and MOT scores of referees and the athletes significantly decreased during the DT (P<0.001 in both). Comparison of groups showed that the referees' ESST scores were significantly higher during the DT (P=0.026), while the groups' responses were similar regarding MOT scores (P=0.476). No differences were found in motor and cognitive performance DTC scores between the groups (P=0.465, P=0.184, respectively).</p><p><strong>Conclusions: </strong>DT reduced the motor and cognitive performances of both referees and athletes. Considering the importance of referees' motor and cognitive performance and ability to make correct decisions during the match, it is thought that training aimed at developing DT performances can be useful.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"865-872"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gender differences in three-dimensional pelvic behavior during maximal sprint running.","authors":"Kazuki Ota, Takuya Yoshida, Hirohiko Maemura, Satoru Tanigawa","doi":"10.23736/S0022-4707.25.16415-3","DOIUrl":"10.23736/S0022-4707.25.16415-3","url":null,"abstract":"<p><strong>Background: </strong>Previous studies on joint kinetics in female during maximal sprinting have been limited to lower-limb kinetics; however, we hypothesized that female's sprinters have greater lumbosacral free leg side lateral flexion torque and lower lumbosacral free leg side torsional torque than male's sprinters. The present study aimed to examine the stiffness parameters, three-dimensional pelvic behavior, and kinetics in female's sprinters compared with male's sprinters.</p><p><strong>Methods: </strong>The three-dimensional (3D) kinematics and force data during regular 60-m sprints starting from a crouching start position in eight female's and male's sprinters were captured using a motion capture system and force platform. Stiffness parameters, three-dimensional pelvic behavior, and kinetics were calculated.</p><p><strong>Results: </strong>Female's sprinters had significantly lower vertical stiffness compared to male's sprinters. Additionally, female's sprinters had significantly the greater lateral flexion of the pelvis toward the free leg side angle and integrated contributory component of the free leg side lateral flexion angular impulse during the stance phase compared to male's sprinters. Furthermore, female's sprinters had significantly lower step frequency and an integrated contributory component of the free leg side rotation angular impulse during the stance phase and in total compared to male's sprinters.</p><p><strong>Conclusions: </strong>The lateral flexion of the pelvis toward the free leg side observed in female's sprinters during stance leg toe-off may contribute to the upward movement center of mass. The lower lumbosacral torsional torque towards the free leg side in female's sprinters may lead to delayed leg recovery motion after stance leg toe-off, resulting in a lower step frequency.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"873-882"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pretraining warm-ups and localized pain may be associated with CrossFit-related injuries: nationwide cross-sectional study.","authors":"Ohad Segal, Shay Mindlin, Yuval Glick, Shai Shemesh, Ran Atzmon, Michael Drexler, Ronen Blecher","doi":"10.23736/S0022-4707.25.16637-1","DOIUrl":"10.23736/S0022-4707.25.16637-1","url":null,"abstract":"<p><strong>Background: </strong>Developed in recent years, CrossFit has gained much popularity in the industrialized world due to various advantages such as scalability, availability and high sense of community. Nonetheless, with growing interest, reports on associated injury have also emerged, highlighting the need for better characterization and analysis of specific risk factors. Our goal was therefore to characterize injuries related to CrossFit and to describe specific risk factors associated with their occurrence.</p><p><strong>Methods: </strong>We conducted a cross-sectional study by using a questionnaire aimed at CrossFit athletes responding to personally delivered questionnaires nationwide.</p><p><strong>Results: </strong>A total of 502 fully answered our questionnaire. Athletes who reported injury had a slightly higher mean weight (P=0.065) and Body Mass Index (P=0.059) compared to their non-injured counterparts and the most affected area was the upper extremity (N.=133, 26.4%) followed by the shoulder (N.=101, 20.1%). Athletes who performed preworkout warmup exercises were significantly more prone to report an injury (P=0.007) as well as those who had prior injury in the affected area. Backward stepwise regression model assessing injury predictors revealed that preworkout warmup (OR 1.816; 95% CI 1.095-3.011; P=0.021) and preinjury local pain (OR 1.554; 95% CI 1.004-2.046; P=0.048) in CrossFit athletes were significant predictors of injuries.</p><p><strong>Conclusions: </strong>Pretraining warm-ups and preinjury localized pain were found to predict significant injury among CrossFit athletes.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"939-944"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143391218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numbers do not lie, but they can mislead: rethinking what doping prevalence statistics really mean.","authors":"Andrea Petróczi","doi":"10.23736/S0022-4707.25.17281-2","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.17281-2","url":null,"abstract":"","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":"65 7","pages":"835-838"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144528511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute effects of electrical muscle stimulation on energy metabolism during weight-bearing exercise in young-female: a crossover randomized controlled trial.","authors":"Juseong Lee, Seung W Shin, Junghoon Kim","doi":"10.23736/S0022-4707.25.16158-6","DOIUrl":"10.23736/S0022-4707.25.16158-6","url":null,"abstract":"<p><strong>Background: </strong>Electrical muscle stimulation is an effective tool that provides additional benefits to energy metabolism, such as energy expenditure. However, it remains unclear which energy system influences the increase in energy expenditure during electrical muscle stimulation. The aim of this study was to determine the contribution of three energy systems (aerobic, anaerobic lactic, and anaerobic alactic) during a single session of weight-bearing exercise with EMS using a crossover randomized controlled trial.</p><p><strong>Methods: </strong>Ten young females (mean age: 23.0±3.6 years) were randomly assigned to perform two types of exercises in a random order (WB: weight-bearing exercises without electrical muscle stimulation, N.=10; WB+EMS: weight-bearing exercises with electrical muscle stimulation, N.=10). During both sessions, we evaluated the oxygen consumption (absolute and relative), blood lactate concentration (before and after exercise), and heart rate. We then calculated the energy expenditure and percentage for the three energy systems.</p><p><strong>Results: </strong>WB+EMS showed significantly higher oxygen consumption (P=0.016, effect size; d=0.94) than WB. The total energy expenditure was 25.7% higher in WB+EMS than in WB (84.4±17.1 vs. 67.1±15.4 kcal, P=0.045, d=0.74). In addition, the energy expenditure of the anaerobic lactic system was significantly higher in the WB+EMS (P=0.009, d=1.06).</p><p><strong>Conclusions: </strong>These findings suggest that electrical muscle stimulation can contribute to an increased energy metabolism, particularly in the anaerobic energy system, even when performing the same type and duration of exercise.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"856-864"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}