Journal of Strength and Conditioning Research最新文献

{"title":"Comparison of Brachial Artery Endothelial Function in the Dominant Arm Between Male College Baseball Pitchers and Fielders.","authors":"Eisuke Morimoto, Masahiro Matsui, Shoya Mori, Tomoya Kumakura, Mika Konishi, Ryuhei Michinobu, Takashi Fukuda, Masahiro Takemura, Keisei Kosaki","doi":"10.1519/JSC.0000000000005267","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005267","url":null,"abstract":"<p><strong>Abstract: </strong>Morimoto, E, Matsui, M, Mori, S, Kumakura, T, Konishi, M, Michinobu, R, Fukuda, T, Takemura, M, and Kosaki, K. Comparison of brachial artery endothelial function in the dominant arm between male college baseball pitchers and fielders. J Strength Cond Res XX(X): 000-000, 2025-Although structural changes caused by exercise-induced vascular adaptation have been reported in baseball players, current evidence in the literature concerning vascular function remains limited. This cross-sectional study aimed to determine whether vascular endothelial function in the brachial artery of the dominant arm differed between university baseball pitchers vs. fielders. Ninety baseball players participated in this study. Brachial artery diameter and vasodilator function were measured in the supine position for each subject using an ultrasound imaging system. Shoulder joint range of motion and muscle strength were measured in supine and prone positions. Compared with the fielders, the pitchers had a decreased mean flow-mediated dilation (FMD) values (7.5% ± 2.5 vs. 10.6% ± 4.0%, p < 0.001) but significantly higher values for range of motion regarding external rotation (ER) of the shoulder joint (119.8 ± 8.5° vs. 115.7 ± 7.8°, p = 0.035), ER muscle strength (7.6 ± 2.2 N vs. 6.2 ± 2.0 N, p = 0.009), and baseline brachial artery diameter (4.2 ± 0.4 mm vs. 4.0 ± 0.4 mm, p = 0.010). Simple correlation analysis showed a negative correlation among FMD values, shoulder joint internal rotation strength, and ER range of motion. These findings indicate that functional exercise-induced vascular adaptations occur in the brachial artery of pitchers, indicating a possible role for position-specific demands in vascular remodeling.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Countermovement Jump Propulsive Kinetics Distinguish Young Weightlifters Who Attain National Qualification.","authors":"Stephanie J Morris, Jon L Oliver, Jason S Pedley, Lucy S Kember, G Gregory Haff, Rhodri S Lloyd","doi":"10.1519/JSC.0000000000005187","DOIUrl":"10.1519/JSC.0000000000005187","url":null,"abstract":"<p><strong>Abstract: </strong>Morris, SJ, Oliver, JL, Pedley, JS, Kember, LS, Haff, GG, and Lloyd, RS. Countermovement jump propulsive kinetics distinguish young weightlifters who attain national qualification. J Strength Cond Res 39(10): 1080-1087, 2025-Researchers have explored the relationship between force-generating abilities and weightlifting performance in young athletes, but it remains unclear whether isometric midthigh pull (IMTP) and countermovement jump (CMJ) kinetics can distinguish between those who achieve national qualification and those who do not. This study aimed to (a) compare IMTP and CMJ kinetics between young weightlifters who did and did not attain national qualification and (b) identify kinetic variables that predict qualification. Thirty-seven young weightlifters were classified into 2 groups: those who qualified (QUAL; age = 17.1 ± 0.3 years, maturity offset = 3.13 ± 0.6 years, males = 15, females = 10) and those who did not qualify (DNQ; age = 15.8 ± 2.2 years, maturity offset = 2.7 ± 1.6 years, males = 6, females = 6). Subjects completed CMJ and IMTP tests on dual force plates. T-tests revealed that QUAL showed significantly ( p < 0.05) higher relative force at minimum displacement ( g = 0.82), average relative propulsive force ( g = 1.76), and average propulsive velocity during the CMJ ( g = 0.68), along with a shorter propulsive phase ( g = -1.22). In the IMTP, QUAL demonstrated higher relative peak force. Statistical parametric mapping revealed greater relative vertical force at 69-88% of movement time in QUAL, indicating higher force during the CMJ propulsive phase. Binary logistic regression identified CMJ average relative propulsive force and propulsive phase duration as significant predictors of qualification, with strong predictive accuracy (area under the receiver operator curve [AUC] = 0.910, p < 0.05 and AUC = 0.807, p < 0.05), highlighting the value of these variables when identifying and developing young weightlifters for national qualification.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1080-1087"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of the Maximal Metabolic Steady State From Heart Rate Variability Using a Submaximal Incremental Ramp Test.","authors":"Bruce Rogers, Juan M Murias, Pablo R Fleitas-Paniagua","doi":"10.1519/JSC.0000000000005196","DOIUrl":"10.1519/JSC.0000000000005196","url":null,"abstract":"<p><strong>Abstract: </strong>Rogers, B, Murias, JM, and Fleitas-Paniagua, PR. Prediction of the maximal metabolic steady state from heart rate variability using a submaximal incremental ramp test. J Strength Cond Res 39(10): e1256-e1264, 2025-Recent studies have demonstrated that the metabolic rate at the heavy-severe exercise intensity boundary can be determined by identifying the respiratory compensation point (RCP) and the second heart rate variability threshold (HRVT2) from incremental ramp testing. This study examined whether the HRVT2 could be extrapolated from submaximal portions of the incremental test. Fifteen subjects (5 men, 10 women, age 23 ± 4 years, V̇ o2 max 42.6 ± 8.0 ml·kg -1 ·min -1 ) underwent incremental cycling ramp testing measuring gas exchange variables along with an open-source application recording detrended fluctuation analysis (DFA a1) and RR intervals. RR data from ramp start to the point at which DFA a1 reached 0.75 were used for HRVT2 extrapolation. Comparisons were made between the V̇ o2 and HR at the RCP and HRVT2. Mean values for RCP vs. HRVT2 V̇ o2 and HR were not statistically different, 39.0 ± 9.7 vs. 38.8 ± 11.1 ml·kg -1 ·min -1 and 168 ± 9 vs. 168 ± 12 bpm, respectively, with equivalence verified. Pearson's r correlation coefficients were 0.92 and 0.60 for RCP vs. HRVT2 V̇ o2 and HR, respectively. Bland-Altman analysis showed negligible bias of 0.2 ml·kg -1 ·min -1 (LOA ±9.0) for V̇ o2 and +1 bpm (LOA ±20 bpm) for HR. DFA a1 at the RR interval testing limit was 0.72 ± 0.04 with an HR of 163 ± 12. In this group of healthy recreationally active subjects, the HRVT2 V̇ o2 and HR extrapolated from submaximal portions of the incremental test maintained similar agreement and equivalence to the V̇ o2 and HR at the RCP as seen in prior studies using testing to exhaustion.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1256-e1264"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validity and Test-Retest Reliability of Repetitions-In-Reserve Across Different Low-Loads in the Barbell Bench Press With Blood Flow Restriction.","authors":"William M Grant, Paul S R Goods, Bradley A Wall, Charlie J Davids, Benjamin J Narang, Tadej Debevec, Brendan R Scott","doi":"10.1519/JSC.0000000000005190","DOIUrl":"10.1519/JSC.0000000000005190","url":null,"abstract":"<p><strong>Abstract: </strong>Grant, WM, Goods, PSR, Wall, BA, Davids, CJ, Narang, BJ, Debevec, T, and Scott, BR. Validity and test-retest reliability of repetitions-in-reserve across different low-loads in the barbell bench press with blood flow restriction. J Strength Cond Res 39(10): e1218-e1225, 2025-Repetitions-in-reserve (RIR) allows the standardization of effort between individuals during resistance training. This study investigated the validity and reliability of predicting RIR during low-load resistance training with blood flow restriction (BFR). Twenty subjects were assessed for bench press one-repetition maximum (1RM), before 4 experimental trials (20, 30, 30, 40% 1RM) comprising 4 sets (30, 15, 15, 15 repetitions; 30 seconds rest) with continuous BFR at 60% arterial occlusion pressure. After 15 repetitions in the final set, subjects estimated RIR before continuing the set to failure. Differences between estimated RIR and actual repetitions to failure were calculated (RIR error ). Test-retest reliability of RIR error was determined from repeated 30% 1RM trials using intraclass correlation coefficients (ICC) and coefficients of variation (CV). Differences and associations were assessed by repeated measures ANOVA and correlational analyses. The fewest fourth set repetitions were performed at 40% 1RM (median [interquartile range] = 8 [5-16] repetitions), followed by 30% 1RM (30 [19-37]) and 20% 1RM (90 [53-114]). RIR error was significantly higher with 20% 1RM (52 [23-76]) than 30% 1RM (9 [2-15]; p < 0.001) but was not analyzed at 40% 1RM (because 14/20 subjects completed ≤15 repetitions). Repetitions-in-reserve predictions were moderately reliable (ICC: 0.980, CV: 13.6%), but with wide limits of agreement (-7 to 7 repetitions). Number of fourth set repetitions was almost perfectly correlated with RIR error ( R2 = 0.90-0.94). Repetitions-in-reserve should not replace 1RM training prescriptions for low-load BFR. Results suggest that 30% 1RM is an appropriate load to begin with for trained individuals using a 75-repetition BFR scheme.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1218-e1225"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Lower Extremity Alignment During Barbell Squat Training on Muscle Volumes.","authors":"Loren Z F Chiu, Andrew C Fry","doi":"10.1519/JSC.0000000000005179","DOIUrl":"10.1519/JSC.0000000000005179","url":null,"abstract":"<p><strong>Abstract: </strong>Chiu, LZF, and Fry, AC. Effects of lower extremity alignment during barbell squat training on muscle volumes. J Strength Cond Res 39(10): 1053-1061, 2025-Squat training increases monoarticular hip and knee extensor muscle size. Biomechanical studies demonstrate that hip muscle demands are different for squats performed with \"knees in\" vs. \"knees out\" tibiofemoral alignment. To: (a) determine whether these differences in hip muscle demands influence hip extensor muscle size adaptations and (b) examine the safety of these squat variations, training with \"knees in\" vs. \"knees out\" squats was compared. Eleven healthy women (\"knees in\": n = 6) completed 6 weeks' barbell squat training. Fat-free muscle volumes were reconstructed from magnetic resonance imaging, and self-reported knee health was assessed using the Knee Injury and Osteoarthritis Outcome Score (KOOS). Both groups increased lower-body strength ( p < 0.001) and vasti muscles' volumes ( p < 0.02). However, no muscles with a hip extensor action increased in size ( p > 0.05). Surprisingly, gluteus maximus volume decreased in the \"knees in\" group ( p = 0.045). Smaller gluteus maximus may indicate muscle atrophy or water loss concomitant to glycogen depletion. As the former indicates reduced and the latter increased muscle loading, \"knees in\" squat seems to affect gluteus maximus loading, although the direction of this change is unclear. The 5 KOOS outcomes were not different between groups, nor did they change over time ( p > 0.05). Both squat variations are tolerable for novice women trainees, and a longer training intervention may be required to establish differential hip extensor muscle adaptations between variations.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1053-1061"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Maximal and Supramaximal Accentuated Eccentric Loading on the Barbell Bench Press.","authors":"Margaret M Michalak, Timothy J Suchomel, Beau K Greer, Steven A Long, Christober B Taber","doi":"10.1519/JSC.0000000000005176","DOIUrl":"10.1519/JSC.0000000000005176","url":null,"abstract":"<p><strong>Abstract: </strong>Michalak, MM, Suchomel, TJ, Greer, BK, Long, SA, and Taber, CB. The effects of maximal and supramaximal accentuated eccentric loading on the barbell bench press. J Strength Cond Res 39(10): 1028-1033, 2025-The effects of accentuated eccentric loading (AEL) were examined on barbell bench press mean and peak performance metrics across various concentric and eccentric loads. Eighteen strength-trained men (age: 23.8 ± 4.0 years; height: 180.2 ± 5.7 cm; body mass: 95.8 ± 6.6 kg, training age: 2 ± 14 years, bench press 1 repetition maximum (1RM): 120.7 ± 17.0 kg, relative strength ratio: 1.27 ± 0.17 kg·kg -1 ) participated. Subjects completed repetitions using concentric loads ranging from 40 to 80% 1RM in 10% increments during each experimental session. The AEL protocols used 100% (AEL100) or 110% (AEL110) of concentric 1RM during the eccentric action, and the eccentric load remained the same as the concentric load during the traditional loading session. An analysis of variance with repeated measures was used to analyze the effects of loading condition and concentric load (3 × 5) on concentric power, force, velocity, and eccentric repetition duration. Greater concentric force outputs were observed at 60-80% loads compared with 40% ( p < 0.05). In addition, 40% loading elicited greater concentric velocities compared with the 60-80% loads ( p < 0.05). The magnitude of the concentric load showed a greater change in performance metrics than the loading condition, alluding to AEL protocols having too great an effect on movement mechanics to result in consistent performance enhancements. Thus, it seems the efficacy of AEL at various concentric loads depends on the magnitude of eccentric loading and the relative strength index of subjects.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1028-1033"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resistance and Aerobic Training Promote Similar Arterial Stiffness but Possibly Different Vascular Tone in Adults.","authors":"Michael R Perlet, Sean M Lubiak, Genevieve B Batman, Kyndall V Ransom, Ethan C Hill, Joshua L Keller","doi":"10.1519/JSC.0000000000005182","DOIUrl":"10.1519/JSC.0000000000005182","url":null,"abstract":"","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1062-1071"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does the Method Matter? Examining How Specific Educational Approaches Shape Sleep Education Outcomes in High-Level Adolescent Athletes.","authors":"Flynn Crosbie, Florane Pasquier, Mathieu Nedelec","doi":"10.1519/JSC.0000000000005195","DOIUrl":"10.1519/JSC.0000000000005195","url":null,"abstract":"","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1243-e1248"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agility and Not Change of Direction Speed Discriminates Competitive Level in Young Soccer Players.","authors":"Glauber B Menezes, Ricardo S Oliveira, Jon L Oliver, Rhodri S Lloyd, Arnaldo L Mortatti","doi":"10.1519/JSC.0000000000005172","DOIUrl":"10.1519/JSC.0000000000005172","url":null,"abstract":"<p><strong>Abstract: </strong>Menezes, GB, Oliveira, RS, Oliver, JL, Lloyd, RS, and Mortatti, AL. Agility and not change of direction speed discriminates competitive level in young soccer players. J Strength Cond Res 39(10): e1169-e1177, 2025-This study aimed to examine the discriminant ability of agility and change of direction speed (CODS) among young soccer players. Eighty-seven male soccer players (U-15 age group) were analyzed and grouped based on competitive level as nonelite, subelite, and elite players. Anthropometry, maturity offset, agility (perception-decision time, and movement response time), and CODS were assessed. Linear discriminant analysis (LDA) was applied to obtain the standardized coefficients of each variable in the model and the accuracy of the model comparing the predicted with the true group. Aiming to describe the discriminant ability of CODS and agility, all LDA models also included subjects age, maturity offset, and training age. Standard discriminant function (SDF) revealed that CODS (SDF = -0.012) or perception-decision (SDF = -0.380) time has a reduced discriminatory ability compared with age and maturity offset. When considering all variables, movement response time (SDF = -0.726) and maturity offset (SDF = 0.595) contributed the most to the discriminant ability of the models (75% accuracy). Moreover, movement response time correctly classified elite (accuracy >84%) compared with subelite and nonelite players. Our results indicate that agility tests with specific stimuli are better than CODS tests at distinguishing young soccer players of different competitive levels, even when considering the effects of age, maturity status, and training age. In addition, the movement response time emerges as the primary factor influencing agility performance in young athletes. Monitoring these qualities may help coaches in the talent identification and development program.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1169-e1177"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144258224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Both Isometric and Dynamic Testing Are Essential for a Comprehensive Assessment of the Knee Extensors.","authors":"Ludovico Grossio, Francesco Salvaggio, Paolo R Brustio, Alberto Rainoldi, Pierre Samozino, Gennaro Boccia","doi":"10.1519/JSC.0000000000005193","DOIUrl":"10.1519/JSC.0000000000005193","url":null,"abstract":"<p><strong>Abstract: </strong>Grossio, L, Salvaggio, F, Brustio, PR, Rainoldi, A, Samozino, P, and Boccia, G. Both isometric and dynamic testing are essential for a comprehensive assessment of the knee extensors. J Strength Cond Res 39(10): e1226-e1232, 2025-The improvements of measurement tools and data analysis enhanced our possibilities to assess neuromuscular performance, but also created confusion regarding significance and practical applications of this available information. To simplify the strength assessment understanding, our purpose was to group force, velocity, and power metrics that could provide similar outcomes. We measured single-leg knee extensor strength under isometric and dynamic conditions on 64 young adults (33 men and 31 women). Subjects performed maximal and burst-like contractions under isometric conditions to assess maximal torque (MVT) and rate of torque development (RTD). Under dynamic conditions, a torque-velocity relationship was obtained from an incremental load test. Principal component analysis (PCA) was used to reduce the dimensionality of the data set and group variables. Principal component analysis identified 4 components: (a) \"Maximal force\" (composed by MVT, T 0 , RTD 100 , RTD 150 , T opt , Pmax ), (b) \"Explosiveness\" (composed by RTD 50 , RTD peak , RTD 50 N, RTD 100 N, RTD 150 N, RTD peak N, time to peak torque, time to RTD peak ), (c) \"Force at high velocity\" (composed by V 0 and V opt ), and (d) \"Curvature\" (C). When data were normalized by sex differences, \"Explosiveness\" resulted as the first component and Pmax was included in the \"Force at high velocity\" component. The present findings remark the importance of testing the explosiveness (i.e., early RTD and normalized RTD metrics) together with torque-velocity profiling, to have a more comprehensive assessment of neuromuscular qualities.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1226-e1232"},"PeriodicalIF":3.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}