European journal of sport science最新文献

{"title":"Optimizing exercise prescription during breast cancer rehabilitation in women: Analysis of the load–velocity relationship in the box squat exercise","authors":"David M. Díez-Fernández,&nbsp;Alba Esteban-Simón,&nbsp;Andrés Baena-Raya,&nbsp;David Rodríguez-Rosell,&nbsp;Filipe Conceição,&nbsp;Manuel A. Rodríguez-Pérez,&nbsp;Alberto Soriano-Maldonado","doi":"10.1002/ejsc.12130","DOIUrl":"10.1002/ejsc.12130","url":null,"abstract":"<p>The aims of this study were to assess (i) the load–velocity relationship during the box squat exercise in women survivors of breast cancer, (ii) which velocity variable (mean velocity [MV], mean propulsive velocity [MPV], or peak velocity [PV]) shows stronger relationship with the relative load (%1RM), and (iii) which regression model (linear [LA] or polynomic [PA]) provides a greater fit for predicting the velocities associated with each %1RM. Nineteen women survivors of breast cancer (age: 53.2 ± 6.9 years, weight: 70.9 ± 13.1 kg, and height: 163.5 ± 7.4 cm) completed an incremental load test up to one-repetition maximum in the box squat exercise. The MV, MPV, and the PV were measured during the concentric phase of each repetition with a linear velocity transducer. These measurements were analyzed by regression models using LA and PA. Strong correlations of MV with %1RM (<i>R</i>² = 0.903/0.904; the standard error of the estimate (SEE) = 0.05 m^.s⁻¹ by LA/PA) and MPV (<i>R</i>² = 0.900; SEE = 0.06 m^.s⁻¹ by LA and PA) were observed. In contrast, PV showed a weaker association with %1RM (<i>R</i>² = 0.704; SEE = 0.15 m^.s⁻¹ by LA and PA). The MV and MPV of 1RM was 0.22 ± 0.04 m·s⁻¹, whereas the PV at 1RM was 0.63 ± 0.18 m^.s⁻¹. These findings suggest that the use of MV to prescribe relative loads during resistance training, as well as LA and PA regression models, accurately predicted velocities for each %1RM. Assessing and prescribing resistance exercises during breast cancer rehabilitation can be facilitated through the monitoring of movement velocity.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12130","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141119418","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":"Adjunctive hiking bouts during 8 weeks regular sailing training improves cardiorespiratory and muscular responses during hiking emulation in highly trained sailors","authors":"Dandan Pan,&nbsp;Kaiyang Sun,&nbsp;Xiuxia Liu","doi":"10.1002/ejsc.12118","DOIUrl":"10.1002/ejsc.12118","url":null,"abstract":"<p>To investigate the effects of 8-week hiking bench training on cardiorespiratory and muscular responses of highly trained sailors during hiking emulation. Twenty-four sailors were assigned into two groups: the hiking bench training group (HTG, <i>n</i> = 12) and the control group (CG, <i>n</i> = 12). Both groups maintained their regular training with the HTG performed two additional hiking bench training sessions per week for 8 weeks, while the CG performed an equivalent duration of on-water sailing training. Physiological responses were assessed by performing four successive 3-min hiking bouts on a sailing emulation ergometer before and after the 8-week training period. Comparing the pretest, both groups exhibited a significant decrease (<i>p</i> &lt; 0.05) in the percentage of maximal oxygen uptake (%VO₂max) and maximal heart rate (%HRmax); the HTG experienced a greater decrease in %VO₂max in bouts 2 and 3. The root mean square (RMS) of rectus femoris (RF), vastus lateralis (VL), rectus abdominis (RA), and external oblique decreased significantly (<i>p</i> &lt; 0.05), whereas the mean power frequency (MPF) of RF, VL, and RA exhibited an increasing trend. The RMS of RF and RA in HTG were lower than those in CG in the initial three bouts; VL and EA in HTG were lower than those in CG in bouts 1 and 2 (<i>p</i> &lt; 0.05). The MPF of RA in HTG was significantly increased in bouts 2, 3, and 4 (<i>p</i> &lt; 0.05). Eight-week hiking bench training could improve hiking economy and the activation of lower limb and trunk muscles delaying the onset of fatigue in sailors.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141126863","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":"Aerobic high-intensity interval training and maximal strength training in patients with unspecific musculoskeletal disorders improve V̇O2peak and maximal strength more than moderate training","authors":"Håkon Hov,&nbsp;Geir Eithun,&nbsp;Eivind Wang,&nbsp;Jan Helgerud","doi":"10.1002/ejsc.12126","DOIUrl":"10.1002/ejsc.12126","url":null,"abstract":"<p>Improving peak oxygen uptake (V̇O_2peak) and maximal strength are key objectives of rehabilitation for patients with unspecific musculoskeletal disorders (MSDs). Although high-intensity training yield superior outcomes for these factors, patients with MSDs may not tolerate high-intensity due to pain and fear. Therefore, we examined the effect and feasibility of incorporating aerobic high-intensity intervals (HIITs) and maximal strength training (MST) in a standard clinical rehabilitation program for patients with unspecific MSDs. 73 patients (45 ± 10 years) with MSDs partaking in a standard, public, and 4-week rehabilitation program were randomized to high-intensity training (HG: 4 × 4 minutes intervals at ∼90% of maximal heart rate; HR_max, and 4 × 4 repetitions leg press at ∼90% of 1 repetition maximum; 1RM, with maximal intended velocity) or keep todays treatment of low-to moderate-intensity training (MG: various cycling, walking, and/or running activities at ∼70%–80% of HR_max and 3 × 8 − 10 repetitions leg press at ∼75% of 1RM without maximal intended velocity). HG improved V̇O_2peak (12 ± 7%) and leg press 1RM (43 ± 34%) more than moderate-intensity group (V̇O_2peak; 5 ± 6%, 1RM; 19 ± 18%, both <i>p</i> &lt; 0.001). We observed that no adverse events and no between-group differences in dropout rate or self-reported quality of life (both <i>p</i> &gt; 0.05). There were positive correlations between improved V̇O_2peak and improved physical (<i>p</i> = 0.024) and emotional (0.016) role functioning. We conclude that both high-intensity interval training and MST are feasible and improve V̇O_2peak and maximal strength more than standard low-to moderate-intensity treatment of patients with unspecific MSDs. Our findings suggest that high-intensity training should be implemented as a part of standard clinical care of this patient population.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974833","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":"Are we tackle ready? Cross-sectional video analysis of match tackle characteristics in elite women's Rugby Union","authors":"Kathryn Dane,&nbsp;Stephen W. West,&nbsp;Sharief Hendricks,&nbsp;Ciaran Simms,&nbsp;Nicol van Dyk,&nbsp;Will Connors,&nbsp;Fiona Wilson","doi":"10.1002/ejsc.12120","DOIUrl":"10.1002/ejsc.12120","url":null,"abstract":"<p>The tackle contest is the most common and most injurious match contact event in rugby and is an indicator of performance. <i>Tackle Ready</i> is World Rugby's tackle technique education program. Limited research has characterized the tackle contest in women's rugby. The purpose of this study is to: (1) identify the match situational characteristics, ball-carrier and tackler technical actions demonstrated in elite women's Rugby Union and (2) to determine the extent to which <i>Tackle Ready</i> recommended tackle techniques were exhibited. Technical characteristics for 1500 tackle events in the 2022–2023 Women's Six Nations Championship were visually assessed according to a predefined coding framework and the <i>Tackle Ready</i> program. Tackles lacked full completion (0.2%) of the 22 coded <i>Tackle Ready</i> techniques with 47% of the recommended techniques demonstrated in each tackle on average (range 15%–98%). A high proportion of tackles involved two defenders (48%), approaching ball-carriers from the side (38%) or oblique angles (39%), in an upright position (30%), and with initial contact made with the arm (51%). Incorrect pre-contact head positioning and head placement upon contact accounted for 50% and 15% of tackles, respectively, and there was a mean of 14 (95% CI 11–18) head and neck contacts to a tackler and 18 (95% CI 14–22) head and neck contacts to a ball-carrier per game. Targeted interventions to encourage adoption of recommended techniques are needed to reduce tackle-related injury risk in women's rugby. This study provides valuable context for future discussion across law enforcement, coach education and gender-specific tackle coaching in the women's game.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974593","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":"Definitions and surveillance methods of running-related injuries: A scoping review","authors":"Aisling Lacey,&nbsp;Enda Whyte,&nbsp;Sarah Dillon,&nbsp;Siobhán O’Connor,&nbsp;Aoife Burke,&nbsp;Kieran Moran","doi":"10.1002/ejsc.12123","DOIUrl":"10.1002/ejsc.12123","url":null,"abstract":"<p>Inconsistent and restricted definitions of injury have contributed to limitations in determining injury rates and identifying risk factors for running-related injuries (RRIs). The aim of this scoping review was to investigate the definitions and surveillance methods of RRIs. A systematic electronic search was performed using PubMed, Scopus, SPORTDiscuss, MEDLINE, and Web of Science databases. Included studies were published in English between January 1980 and June 2023 which investigated RRIs in adult running populations, providing a definition for a general RRI. Results were extracted and collated. 204 articles were included. Three primary criteria were used to define RRIs: physical description, effect on training and medical intervention, while three secondary criteria are also associated with definitions: cause/onset of injury, location, and social consequences. Further descriptors and sub-descriptors form these criteria. The use of Boolean operators resulted in nine variations in definitions. Inconsistency is evident among definitions of RRIs. Injury definitions seem to be important for two main reasons: firstly, determining accurate injury rates, and secondly, in research examining risk factors. For the latter, definitions seem to be very limited, only capturing severe injuries and failing to recognise the full development process of RRIs, precluding the identification of conclusive risk factors. A potential two-approach solution is the initial use of a broad definition acting as a gatekeeper for identifying any potential injury, and follow-up with an extensive surveillance tool to capture the specific consequences of the varying severity of RRIs.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12123","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140980392","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":"Resistance exercise training to improve post-operative rehabilitation in knee arthroplasty patients: A narrative review","authors":"Alejandra P. Monsegue,&nbsp;Pieter Emans,&nbsp;Luc J. C. van Loon,&nbsp;Lex B. Verdijk","doi":"10.1002/ejsc.12114","DOIUrl":"10.1002/ejsc.12114","url":null,"abstract":"<p>Knee osteoarthritis is associated with deficits in muscle strength, muscle mass, and physical functioning. These muscle-related deficits are acutely exacerbated following total knee arthroplasty (TKA) and persist long after surgery, despite the application of standardized rehabilitation programs that include physical/functional training. Resistance exercise training (RET) has been shown to be a highly effective strategy to improve muscle-related outcomes in healthy as well as clinical populations. However, the use of RET in traditional rehabilitation programs after TKA is limited. In this narrative review, we provide an updated view on whether adding RET to the standard rehabilitation (SR) in the recovery period (up to 1 year) after TKA leads to greater improvements in muscle-related outcomes when compared to SR alone. Overall, research findings clearly indicate that both muscle strength and muscle mass can be improved to a greater extent with RET-based rehabilitation compared to SR. Additionally, measures of physical functioning that rely on quadriceps strength and balance (e.g., stair climbing, chair standing, etc.) also appear to benefit more from a RET-based program compared to SR, especially in patients with low levels of physical functioning. Importantly though, for RET to be optimally effective, it should be performed at 70%–80% of the one-repetition maximum, with 3–4 sets per exercise, with a minimum of 3 times per week for 8 weeks. Based upon this narrative review, we recommend that such high-intensity progressive RET should be incorporated into standard programs during rehabilitation after TKA.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140986442","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":"Up for the tackle? The pelvic floor and rugby. A review","authors":"G. M. Donnelly, K. Bø, L. Forner, A. Rankin, I. S. Moore","doi":"10.1002/ejsc.12121","DOIUrl":"https://doi.org/10.1002/ejsc.12121","url":null,"abstract":"The pelvic floor and its associated disorders are a unique and often overlooked aspect of women's rugby. This review discusses relevant biopsychosocial considerations specific to the pelvic floor and rugby. Pelvic floor disorders can present at any time across the female lifespan but are more prevalent during pregnancy and postpartum. This is due to the substantial physiological and anatomical changes experienced during pregnancy and vaginal childbirth. Consequently, pelvic floor disorders can impact a player's ability to perform, maintain engagement with, or return to, rugby due to symptoms. Players need to be informed, supported, and guided through focused pelvic floor muscle training to condition the muscles and ‘ready’ them for the varied demands of rugby. Health and fitness professionals should understand the risk of pelvic floor disorders across the female lifespan and screen players for symptoms when supporting them to maintain or return to rugby. Rugby players who are symptomatic of pelvic floor disorders should be signposted to specialist services and/or resources to manage their symptoms. Once engaging in rugby training, ongoing evaluation of player load tolerance and implementation of individualized strategies to support managing rugby‐related loads to the pelvic floor should be considered. Finally, surveillance and research focusing specifically on rugby players and pelvic floor function are needed.","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989796","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":"The state of play for contact training and coaching in women's rugby","authors":"Anna Stodter, Kathryn Dane","doi":"10.1002/ejsc.12119","DOIUrl":"https://doi.org/10.1002/ejsc.12119","url":null,"abstract":"This article aims to review and comment upon the current “state of play” for research around contact and tackle training in women's rugby, covering tackle injury risk, match contact demands, players' experiences of contact coaching and contact skill preparation. In women's rugby, the tackle is the most common match technical‐physical contest, accounting for around two‐thirds of all injuries and carrying the greatest injury burden. Players' experience and technical abilities are key determinants of tackle safety and performance. Despite this, there is limited research available that connects insight into women's rugby contact demands with the how and why of effective tackle and contact training and coaching in context. This review suggests that adapting and adopting progressive tackle skill training frameworks and gender‐responsive coaching practices can aid tackle skill learning in women's rugby. Creative transdisciplinary research and more effective translation and implementation activities that take place within the vibrant and growing context of women's rugby can enhance science and safety whilst working as a medium for social change.","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993201","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":"Improving the identification of bone-specific physical activity using wrist-worn accelerometry: A cross-sectional study in 11–12-year-old Australian children","authors":"Gemma Brailey,&nbsp;Brad Metcalf,&nbsp;Lisa Price,&nbsp;Sean Cumming,&nbsp;Alex Rowlands,&nbsp;Timothy Olds,&nbsp;Peter Simm,&nbsp;Melissa Wake,&nbsp;Victoria Stiles","doi":"10.1002/ejsc.12122","DOIUrl":"10.1002/ejsc.12122","url":null,"abstract":"<p>Physical activity (PA) during childhood and adolescence is important for the accrual of maximal peak bone mass. The precise dose that benefits bone remains unclear as methods commonly used to analyze PA data are unsuitable for measuring bone-relevant PA. Using improved accelerometry methods, this study identified the amount and intensity of PA most strongly associated with bone outcomes in 11–12-year-olds. Participants (<i>n</i> = 770; 382 boys) underwent tibial peripheral quantitative computed tomography to assess trabecular and cortical density, endosteal and periosteal circumference and polar stress-strain index. Seven-day wrist-worn raw acceleration data averaged over 1-s epochs was used to estimate time accumulated above incremental PA intensities (50 milli-gravitational unit (m<i>g</i>) increments from 200 to 3000 m<i>g</i>). Associations between time spent above each 50 m<i>g</i> increment and bone outcomes were assessed using multiple linear regression, adjusted for age, sex, height, weight, maturity, socioeconomic position, muscle cross-sectional area and PA below the intensity of interest. There was a gradual increase in mean <i>R</i>² change across all bone-related outcomes as the intensity increased in 50 m<i>g</i> increments from &gt;200 to &gt;700 m<i>g</i>. All outcomes became significant at &gt;700 m<i>g</i> (<i>R</i>² change = 0.6%–1.3% and <i>p</i> = 0.001–0.02). Any further increases in intensity led to a reduction in mean <i>R</i>² change and associations became non-significant for all outcomes &gt;1500 m<i>g</i>. Using more appropriate accelerometry methods (1-s epochs; no a priori application of traditional cut-points) enabled us to identify that ∼10 min/day of PA &gt;700 m<i>g</i> (equivalent to running ∼10 km/h) was positively associated with pQCT-derived measures of bone density, geometry and strength in 11–12-year-olds.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141013666","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":"Exploring characteristics of and transitions between mental states within the Multi-Action Plan model in high-level judo","authors":"Bernadette Kellermann,&nbsp;Dave Collins,&nbsp;Alan MacPherson,&nbsp;Maurizio Bertollo","doi":"10.1002/ejsc.12117","DOIUrl":"10.1002/ejsc.12117","url":null,"abstract":"<p>The Multi-Action Plan (MAP) model presents an idiosyncratic framework for human performance. MAP research has categorised four Performance Types (PTs; T1–T4) using self-paced activities. Specifically, T1–4 present four distinct mental states experienced by athletes during performance, differing, among other aspects, in the level of effort and perceived control. However, transitions between PTs are yet to be empirically investigated. This study aimed to examine MAP in the hyperdynamic open-skill combat context of judo. We explored how judoka experienced PTs and the transition processes between these mental states. Six British, high-level judoka (<i>n</i> = 6; Mdn_age = 19) were interviewed using a retrospective semi-structured interview schedule. Interpretative phenomenological analysis indicated that judo presents a hyperdynamic difficult-to-predict performance context due to the opponent and fighting rhythm. Second, participants strongly related to T2 and T3 and less to T1 and T4. They also reported experiences ‘between’ T2 and T3. Lastly, participants reported common transition pathways (e.g., T2–T3), typical transition cues, and specific trainable strategies to optimise performance. Findings are discussed in relation to existing literature. Lastly, we present limitations, applied, and research considerations.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141014451","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}