Jonathan P Beausejour, Kevan S Knowles, Abigail T Wilson, L Colby Mangum, Ethan C Hill, William J Hanney, Adam J Wells, David H Fukuda, JeffreyR Stout, Matt S Stock
{"title":"Innovations in the Assessment of Skeletal Muscle Health: A Glimpse into the Future.","authors":"Jonathan P Beausejour, Kevan S Knowles, Abigail T Wilson, L Colby Mangum, Ethan C Hill, William J Hanney, Adam J Wells, David H Fukuda, JeffreyR Stout, Matt S Stock","doi":"10.1055/a-2242-3226","DOIUrl":"10.1055/a-2242-3226","url":null,"abstract":"<p><p>Skeletal muscle is the largest organ system in the human body and plays critical roles in athletic performance, mobility, and disease pathogenesis. Despite growing recognition of its importance by major health organizations, significant knowledge gaps remain regarding skeletal muscle health and its crosstalk with nearly every physiological system. Relevant public health challenges like pain, injury, obesity, and sarcopenia underscore the need to accurately assess skeletal muscle health and function. Feasible, non-invasive techniques that reliably evaluate metrics including muscle pain, dynamic structure, contractility, circulatory function, body composition, and emerging biomarkers are imperative to unraveling the complexities of skeletal muscle. Our concise review highlights innovative or overlooked approaches for comprehensively assessing skeletal muscle <i>in vivo</i>. We summarize recent advances in leveraging dynamic ultrasound imaging, muscle echogenicity, tensiomyography, blood flow restriction protocols, molecular techniques, body composition, and pain assessments to gain novel insight into muscle physiology from cellular to whole-body perspectives. Continued development of precise, non-invasive tools to investigate skeletal muscle are critical in informing impactful discoveries in exercise and rehabilitation science.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"659-671"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139417098","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":"Can Neuromuscular Electrical Stimulation Enhance the Effect of Sprint Interval Training?","authors":"Ryosuke Takeda, Hiroya Nojima, Taichi Nishikawa, Masamichi Okudaira, Tetsuya Hirono, Kohei Watanabe","doi":"10.1055/a-2256-0285","DOIUrl":"10.1055/a-2256-0285","url":null,"abstract":"<p><p>The aim of this study was to determine the effects of subtetanic neuromuscular electrical stimulation combined with voluntary exercise between repeated Wingate tests on sprint exercise performance and blood lactate accumulation during sprint interval training. Fifteen healthy young males volunteered. After 1-min baseline, participants underwent the Wingate test twice. They performed a 4-min intervention between tests: neuromuscular electrical stimulation with free-weight cycling or voluntary cycling alone [43.6 (8.0) watts], which matched oxygen consumption with neuromuscular electrical stimulation with free-weight cycling. The blood lactate concentration was assessed at the end of the baseline, at 3-min intervention, and on recovery at 1, 3, 5, and 10 min after the second Wingate test. Peak and mean blood lactate concentration during recovery were significantly greater with neuromuscular electrical stimulation with free-weight cycling than voluntary cycling alone (P>0.036 and P=0.011, respectively). Peak power, mean power, and rate of decline (fatigue index) were not significantly different between conditions in both Wingate tests (condition/interaction all P>0.300, partial η<sup>2</sup><0.1). Subtetanic neuromuscular electrical stimulation combined with voluntary exercise indicated similar exercise performance and fatigue levels during Wingate tests, but enhanced blood lactate accumulation compared to oxygen consumption-matched voluntary cycling during sprint interval training.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"672-677"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139575279","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}
Roberto Seco-Serna, Carlos Lago-Fuentes, Martín Barcala-Furelos
{"title":"The Acute: Chronic Workload Ratio and Injury Risk in Semiprofessional Football Players.","authors":"Roberto Seco-Serna, Carlos Lago-Fuentes, Martín Barcala-Furelos","doi":"10.1055/a-2282-0024","DOIUrl":"10.1055/a-2282-0024","url":null,"abstract":"<p><p>The purpose of this study was to analyze the association and predictive capacity between the acute:chronic workload ratio (ACWR) and non-contact injuries in a semiprofessional football team. Seventeen football or soccer players from a Spanish Third Division football team participated voluntarily in this study. A prospective longitudinal study was developed during the 2020/2021 season. Twenty-four weeks were analyzed from October to March, including a regenerative microcycle due to the absence of competition during Christmas. Rate of perceived exertion (RPE) and session-rate of perceived exertion (sRPE) were registered for every training and game session. Afterward, acute and chronic workloads were calculated, and ACWR was subsequently derived from them. Furthermore, non-contact injuries were registered during the period mentioned. The main findings were that there is a poor correlation between the ACWR and non-contact injuries (r=0.069 (p<0.05)), and the use of the ACWR by itself is insufficient to predict the occurrence of non-contact injuries in a semiprofessional football team. Consequently, the ACWR is not an useful predictive tool for injuries in semiprofessional football teams.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"684-689"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140039365","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}
Khaldoon M Bashaireh, Mohammad A Yabroudi, David Logerstedt, Lynn Snyder-Mackler, Zakariya H Nawasreh
{"title":"Reasons for Not Returning to Pre-injury Sport Level After ACL-Reconstruction.","authors":"Khaldoon M Bashaireh, Mohammad A Yabroudi, David Logerstedt, Lynn Snyder-Mackler, Zakariya H Nawasreh","doi":"10.1055/a-2270-3306","DOIUrl":"10.1055/a-2270-3306","url":null,"abstract":"<p><p>The study aimed to identify athlete-reported reasons for not returning to pre-injury sports level after anterior cruciate ligament reconstruction (ACLR) and to identify the factors associated with these reasons. Ninety-one athletes with 2 years post-ACLR indicated whether or not they had returned to their pre-injury sport level (same frequency, duration, and intensity). Athletes who did not return were asked to provide the reasons. Athletes' characteristics and injury-related factors were used to determine factors associated with the reasons for not returning. Only nine athletes (10%) returned to pre-injury sport level after ACLR. The most common reasons for not returning were lack of confidence or concerns about re-injury (48.8%), followed by continued post-surgical impairments in the reconstructed knee (39%). Having episodes of the knee giving way after ACLR was the only significant predictor of post-surgical impairments (48.8%; OR=8.3, 95%CI=2.48-27.42, p=0.001). Lack of confidence, concerns about re-injury, or post-surgical impairments in the reconstructed knee were the most frequently reported reasons for not returning to pre-injury sports level with 2 years post-ACLR. Reported dynamic knee instability was the only factor associated with ongoing post-surgical knee impairments after ACLR. Rehabilitation programs should address athletes' psychological responses and resolve knee impairments to optimize return to pre-injury sport level after ACLR.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"698-704"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140892061","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}
Alysson Enes, Bruno Spiess, Gustavo Oneda, Danilo Fonseca Leonel, Mauro F Bernardo, Ana Carolina G Macedo, Ragami Chaves Alves, Eduardo Oliveira De Souza, Tácito P Souza-Junior
{"title":"Effects of Different Weekly Set Volumes on Strength and Perceptual Responses in Athletes.","authors":"Alysson Enes, Bruno Spiess, Gustavo Oneda, Danilo Fonseca Leonel, Mauro F Bernardo, Ana Carolina G Macedo, Ragami Chaves Alves, Eduardo Oliveira De Souza, Tácito P Souza-Junior","doi":"10.1055/a-2312-5103","DOIUrl":"10.1055/a-2312-5103","url":null,"abstract":"<p><p>This study investigated the effects of different resistance training (RT) volumes quantified by weekly sets at high intensity (load and effort) on dynamic strength adaptations and psychophysiological responses in trained individuals. Twenty-four athletes were randomly allocated to three groups that performed three (3 S, n=8), six (6 S, n=8), and nine (9 S, n=8) weekly sets, respectively, three times a week on the barbell back squat and bench press during an 8-week period. While all groups showcased strength gains (p<0.05), post hoc comparisons revealed that 6 S and 9 S elicited greater strength adaptations than 3 S in barbell back squat (p=0.027 and p=0.004, respectively) and bench press (p=0.001 and p=0.044, respectively). There were no differences between 6 S and 9 S conditions for back squat (p=0.999) and bench press (p=0.378). Although a time effect was observed for Session-RPE (p=0.014) and Total Quality Recovery scale (p=0.020), psychophysiological responses were similar among groups. Our findings suggest that performing six and nine weekly sets at high intensities led to greater strength gains compared to three weekly sets in strength-trained individuals, despite similar psychophysiological responses.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"690-697"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140904383","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}
Javier Olaya-Cuartero, Basilio Pueo, Alfonso Penichet-Tomas, Jose M Jimenez-Olmedo
{"title":"Classification of Male Athletes Based on Critical Power.","authors":"Javier Olaya-Cuartero, Basilio Pueo, Alfonso Penichet-Tomas, Jose M Jimenez-Olmedo","doi":"10.1055/a-2265-2303","DOIUrl":"10.1055/a-2265-2303","url":null,"abstract":"<p><p>This study aimed to classify male athletes based on their performance levels derived from running critical power (CP) using the 9/3-minute Stryd CP test, enabling customized training strategies and goal setting. Twenty-four trained athletes underwent the 9/3-minute running CP test on a certified 400-m athletics track. Hierarchical cluster analysis using Ward's method categorized athletes based on CP into distinct performance tiers. Three clusters were identified with centroids of 3.87±0.12, 4.45±0.17, and 5.14±0.29 W/kg. Five performance tiers were defined through ordinary least square linear regression based on power (W/kg): Tier 1: Fair (2.9 to 3.6 W/kg), Tier 2: Tourist (3.6 to 4.2 W/kg), Tier 3: Regional (4.2 to 4.8 W/kg), Tier 4: National (4.8 to 5.5 W/kg), Tier 5: International (5.5 to 6.1 W/kg). Low semi-partial R-squared (Sp<i>R</i> <sup>2</sup>) values (0.02 to 0.05) indicated minimal homogeneity loss when merging clusters. R-squared (<i>R</i> <sup>2</sup>) explained 89% to 96% of CP variance, emphasizing cluster analysis effectiveness. The linear regression model demonstrated a strong fit (<i>r</i> <sup>2</sup>+=+0.997) with a significant intercept (3.22 W/kg), slope (0.63 W/kg/tier), and a low standard error of estimate (0.045 W/kg). This classification offers insights into male athlete performance levels based on CP, facilitating targeted training programs for varying performance levels.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"678-683"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140095598","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}
Jose A Asian-Clemente, Alberto Rabano-Muñoz, Bernardo Requena, Luis Suarez-Arrones
{"title":"Influence of the Number of Players on the Load of Soccer Players During Transition Games.","authors":"Jose A Asian-Clemente, Alberto Rabano-Muñoz, Bernardo Requena, Luis Suarez-Arrones","doi":"10.1055/a-2286-3914","DOIUrl":"10.1055/a-2286-3914","url":null,"abstract":"<p><p>The aims of this study were to determine the effect of different compositions in transition games (TGs) on the load of soccer players and to evaluate their performance in physical tests. Using a GPS system, 18 players were monitored during: 3vs2, 2vs1 and 1vs1. Distance covered (DC), DC 18-20.9 km·h<sup>-1</sup>, 21-23.9 km·h<sup>-1</sup>,>24 km·h<sup>-1</sup>, peak speed, accelerations (Acc) and decelerations (Dec)>1.0 m·s<sup>-2</sup> and>2.5 m·s<sup>-2</sup> and rate of perceived exertion (RPE) were recorded. Before and after each TG, countermovement-jump (CMJ), 15- (S<sub>15</sub>) and 30 m (S<sub>30</sub>) speed tests were assessed. TG<sub>3vs2</sub> showed greater DC and Dec>1.0 m·s<sup>-2</sup> than TG<sub>2vs1</sub>, and DC, DC 18.0-23.9 km·h<sup>-1</sup>, Acc>1.0 m·s<sup>-2</sup> and Dec>2.5 m·s<sup>-2</sup> than TG<sub>1vs1</sub> (<i>p</i><0.01). TG<sub>2vs1</sub> achieved higher DC, DC 18.0-23.9 km·h<sup>-1</sup>, and Acc>2.5 m·s<sup>-2</sup> (<i>p</i><0.01) but lower peak speed (<i>p</i>=0.02) and RPE (<i>p</i>=0.02) than TG<sub>1vs1</sub>. Post-intervention, TG<sub>1vs1</sub> showed lower CMJ and higher S<sub>15</sub> (<i>p</i>=0.02), while TG<sub>3vs2</sub>, showed improvements in CMJ (<i>p</i><0.01). The three tasks showed large variations for DC>24 km·h<sup>-1</sup>, Acc>1.0 m·s<sup>-2</sup>, Dec>1.0 m·s<sup>-2</sup> and Dec>2.5 m·s<sup>-2</sup>. The load of TGs is sensitive to their player composition.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"616-623"},"PeriodicalIF":2.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140110239","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}
João Barreira, Petrus Gantois, Jorge Castro, Xavier Mesquita, Rafael Peixoto, Miguel Ferreira Cid, Irineu Loturco, Ana Sousa, Fábio Yuzo Nakamura
{"title":"Using Bar Velocity to Assess Post-match Neuromuscular Fatigue in Young Soccer Players.","authors":"João Barreira, Petrus Gantois, Jorge Castro, Xavier Mesquita, Rafael Peixoto, Miguel Ferreira Cid, Irineu Loturco, Ana Sousa, Fábio Yuzo Nakamura","doi":"10.1055/a-2150-0960","DOIUrl":"10.1055/a-2150-0960","url":null,"abstract":"<p><p>This study aimed to investigate the recovery of neuromuscular performance using mechanical parameters collected during jump (vertical and horizontal) and strength-power exercises in youth soccer players after official soccer matches. Twenty-one outfield highly trained youth male soccer athletes (age: 18.23±0.73 years; weight: 72.12±6.99 kg; height: 1.78±0.08 m) from two teams competing in the 1<sup>st</sup> division of U-19 Portuguese National Championship participated in this study. Players completed a battery of physical tests at -2 h, + 30 min, +24 h, and +48 h in relation to the match. Countermovement jump height, horizontal jump distance, and bar velocity during the half squat, bench press, and hip thrust exercises, at fixed loads, were recorded. Countermovement jump was impaired until 24 h post-match (-: 1.7% from pre- to 24 h post-match, <i>p</i>=0.050; ES=-: 0.82). Half-squat bar velocity was reduced immediately following the match (-: 6.8% from pre-match, <i>p</i>=0.004; ES=-: 0.64) but recovered at +24 h (+2.9%, <i>p</i>=1.00; ES=0.02). Hip-thrust bar velocity was reduced for up to 48 h post-match (-: 7.4% from pre- to 48 h post-match, <i>p</i><0.001; ES=-: 0.80). No impairments were found in the horizontal jump and bench press at any moment. Our findings show prolonged decrements in strength of the posterior chain following a soccer match, measured in the hip thrust exercise, while the other exercises displayed faster recovery dynamics.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"589-597"},"PeriodicalIF":2.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10007825","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}
Braidy S Solie, Luke V Tollefson, Christopher P Doney, Jeremy M J O'Keefe, Will C Thompson, Robert F LaPrade
{"title":"Return to the Pre-Injury Level of Sport after Anterior Cruciate Ligament Reconstruction: A Practical Review with Medical Recommendations.","authors":"Braidy S Solie, Luke V Tollefson, Christopher P Doney, Jeremy M J O'Keefe, Will C Thompson, Robert F LaPrade","doi":"10.1055/a-2270-3233","DOIUrl":"10.1055/a-2270-3233","url":null,"abstract":"<p><p>Returning to sport after anterior cruciate ligament reconstruction (ACLR) can be a challenging and complex process for the athlete, with the rate of return to the pre-injury level of sport observed to be less than athlete expectations. Of the athletes that do return to sport (RTS), knee re-injury rates remain high, and multiple studies have observed impaired athletic performance upon RTS after ACLR as well as reduced playing time, productivity, and career lengths. To mitigate re-injury and improve RTS outcomes, multiple RTS after ACLR consensus statements/clinical practice guidelines have recommended objective RTS testing criteria to be met prior to medical clearance for unrestricted sports participation. While the achievement of RTS testing criteria can improve RTS rates after ACLR, current criteria do not appear valid for predicting safe RTS. Therefore, there is a need to review the various factors related to the successful return to the pre-injury level of sport after ACLR, clarify the utility of objective performance testing and RTS criteria, further discuss safe RTS decision-making as well as present strategies to reduce the risk of ACL injury/re-injury upon RTS. This article provides a practical review of the current RTS after ACLR literature, as well as makes medical recommendations for rehabilitation and RTS decision-making after ACLR.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"572-588"},"PeriodicalIF":2.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140287420","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}
Kayla Henningsen, Isabel Martinez, Ricardo J S Costa
{"title":"Exertional Stress-induced Pathogenic Luminal Content Translocation - Friend or Foe?","authors":"Kayla Henningsen, Isabel Martinez, Ricardo J S Costa","doi":"10.1055/a-2235-1629","DOIUrl":"10.1055/a-2235-1629","url":null,"abstract":"<p><p>The incidence of perturbed gastrointestinal integrity, as well as resulting systemic immune responses and gastrointestinal symptoms, otherwise known as exercised-induced gastrointestinal syndrome (EIGS), is common among individuals who partake in prolonged exercise. EIGS may cause the translocation of pathogenic material, including whole bacteria and bacterial endotoxins, from the lumen into circulation, which may progress into clinical consequences such as sepsis, and potentially subsequent fatality. However, further investigation is warranted to assess the possibility of food allergen and/or digestive enzyme luminal to circulatory translocation in response to exercise, and the clinical consequences. Findings from this narrative literature review demonstrate evidence that whole bacteria and bacterial endotoxins translocation from the gastrointestinal lumen to systemic circulation occurs in response to exercise stress, with a greater propensity of translocation occurring with accompanying heat exposure. It has also been demonstrated that food allergens can translocate from the lumen to systemic circulation in response to exercise stress and initiate anaphylaxis. To date, no research investigating the effect of exercise on the translocation of digestive enzymes from the lumen into systemic circulation exists. It is evident that EIGS and consequential pathogenic translocation presents life-threatening clinical implications, warranting the development and implementation of effective management strategies in at-risk populations.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"559-571"},"PeriodicalIF":2.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139575326","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}