bluuebunny/crossref_metadata_2025_split huggingface dataset:
External Focus Reduces Accuracy and Increases Antagonist Muscle Activation in Novice Adolescent Soccer Players
Authors: Uslu Serkan , Çetin Özdoğan Emel 
Published: October 2022

Instep kick is one of the most effective kicking techniques in soccer. Lower extremity muscles and joints play a crucial role during instep kick. However, external (EF) and internal focus and their effect on the muscles are still ambiguous. In this study, 13 male adolescent soccer players were included and aimed to hit the targets in internal and EF conditions. Lower extremity muscle activations were measured with surface electromyography, and kinematics were measured with a high-speed video camera. Muscle activations and movement latencies were analyzed in four different phases (backswing, leg cocking, acceleration, and follow-through) of kicking. While 10 out of 13 participants kicked accurately in internal focus, only five out of 13 in EF kicked accurately. Gastrocnemius muscle activations increased significantly in EF in all phases except acceleration. Movement latencies were found 0.07 ± 0.002 s for accurate and 0.05 ± 0.004 s for inaccurate kicks in EF. A correlation has been found between accuracy and movement latency in EF (R = .67). Our results suggest that novices cannot yet coordinate their muscles in EF, cocontraction ratio increases. Therefore, training strategies that aim to reduce the cocontraction ratio can help the athlete increase performance through better motor coordination. Moreover, better motor coordination may be beneficial in preventing injuries (joint stiffness, etc.) caused by increased cocontraction ratio.
High-performance electrified hydrogel actuators based on wrinkled nanomembrane electrodes for untethered insect-scale soft aquabots
Authors: Ko Jongkuk , Kim Changhwan , Kim Dongjin , Song Yongkwon , Lee Seokmin , Yeom Bongjun , Huh June , Han Seungyong , Kang Daeshik , Koh Je-Sung , Cho Jinhan 
Published: October 2022

Hydrogels have diverse chemical properties and can exhibit reversibly large mechanical deformations in response to external stimuli; these characteristics suggest that hydrogels are promising materials for soft robots. However, reported actuators based on hydrogels generally suffer from slow response speed and/or poor controllability due to intrinsic material limitations and electrode fabrication technologies. Here, we report a hydrogel actuator that operates at low voltages (<3 volts) with high performance (strain > 50%, energy density > 7 × 10
5
joules per cubic meter, and power density > 3 × 10
4
watts per cubic meter), surpassing existing hydrogel actuators and other types of electroactive soft actuators. The enhanced performance of our actuator is due to the formation of wrinkled nanomembrane electrodes that exhibit high conductivity and excellent mechanical deformation through capillary-assisted assembly of metal nanoparticles and deswelling-induced wrinkled structures. By applying an electric potential through the wrinkled nanomembrane electrodes that sandwich the hydrogel, we were able to trigger a reversible and substantial electroosmotic water flow inside a hydrogel film, which drove the controlled swelling of the hydrogel. The high energy efficiency and power density of our wrinkled nanomembrane electrode–induced actuator enabled the fabrication of an untethered insect-scale aquabot integrated with an on-board control unit demonstrating maneuverability with fast locomotion speed (1.02 body length per second), which occupies only 2% of the total mass of the robot.
Assessing maternal alcohol consumption in pregnancy: does phosphatidylethanol measured from day 5 newborn blood spot cards have any value? An observational, population-based study
Authors: Henderson Elizabeth M A , Tappin David , Young David , Favretto Donata , Mactier Helen 
Published: October 2022

ObjectivePrenatal alcohol exposure (PAE) places children at risk of fetal alcohol spectrum disorder (FASD) but ascertainment of PAE is problematic. Early intervention for children at risk of FASD may help mitigate long-term difficulties. Phosphatidylethanol (PEth), a metabolite of alcohol, is incorporated into red cell membranes and can be measured in dried blood spot (DBS) cards. In the UK, DBS samples are collected on day 5 for routine newborn screening. We sought to examine if PEth measured from DBS correlates with postnatal maternal self-report of alcohol consumption in pregnancy.DesignObservational population-based study. Comparison of infant PEth concentration and self-report of maternal alcohol use during pregnancy.SettingLarge maternity unit in Glasgow, Scotland.ParticipantsAll singleton mother–infant dyads delivered during each fourth consecutive 24-hour period.InterventionsMother: direct, confidential, immediate postnatal interview by a single researcher examining alcohol use during pregnancy. Infant: one extra DBS collected coincident with routine newborn screening if bleeding continued.Results92.5% of eligible mothers agreed to participate. 510 DBS were obtained of which 502 were successfully analysed. 216 (43%) samples contained PEth at a concentration of ≥8 ng/mL and 148 (29.5%) at ≥20 ng/mL. The sensitivity of PEth ≥8 ng/mL and ≥20 ng/mL in identifying women who self-reported modest alcohol use after 36 weeks’ gestation was 50% and 36.4%, respectively.ConclusionPEth measured from DBS obtained on day 5 of life does not reliably identify modest PAE after 36 weeks’ gestation from maternal self-report.
Neurodevelopment assessment of small for gestational age children in a community-based cohort from Pakistan
Authors: Naz Sabahat , Hoodbhoy Zahra , Jaffar Ali , Kaleem Sidra , Hasan Babar S , Chowdhury Devyani , Gladstone Melissa 
Published: October 2022

BackgroundChildren born small for gestational age (SGA) may experience more long-term neurodevelopmental issues than those born appropriate for gestational age (AGA). This study aimed to assess differences in the neurodevelopment of children born SGA or AGA within a periurban community in Pakistan.MethodsThis was a prospective cohort study in which study participants were followed from the pilot Doppler cohort study conducted in 2018. This pilot study aimed to develop a pregnancy risk stratification model using machine learning on fetal Dopplers. This project identified 119 newborns who were born SGA (2.4±0.4 kg) based on International Fetal and Newborn Growth Consortium standards. We assessed 180 children (90 SGA and 90 AGA) between 2 and 4 years of age (76% of follow-up rate) using the Malawi Developmental Assessment Tool (MDAT).FindingsMultivariable linear regression analysis comparing the absolute scores of MDAT showed significantly lower fine motor scores (β: −0.98; 95% CI −1.90 to –0.06) among SGAs, whereas comparing the z-scores using multivariable logistic regression, SGA children had three times higher odds of overall z-scores ≤−2 (OR: 3.78; 95% CI 1.20 to 11.89) as compared with AGA children.InterpretationSGA exposure is associated with poor performance on overall MDAT, mainly due to changes in the fine motor domain in young children. The scores on the other domains (gross motor, language and social) were also lower among SGAs; however, none of these reached statistical significance. There is a need to design follow-up studies to assess the impact of SGA on child’s neurodevelopmental trajectory and school performance.
Effect of the COVID-19 pandemic on maternal healthcare indices in Southern Iran: an interrupted time series analysis
Authors: Yadollahi Parvin , Zangeneh Negar , Heiran Alireza , Sharafi Mehdi , Heiran Khadije Neda , Hesami Elham , Saffari Masoumeh , Azima Sara , Mirahmadizadeh Alireza 
Published: October 2022

ObjectivesEpidemics are anticipated to influence the coverage of health services. We assessed the impact of the COVID-19 pandemic on maternal healthcare indices and care providers’ performance.Setting1801 maternal healthcare centres under the auspices of Shiraz University of Medical Sciences, Shiraz, Southern Iran.ParticipantsApproximately 63 000 pregnant women.Primary and secondary outcome measuresIn this prospective ecological study, interrupted time series analysis was used to model and compare the trend of maternal healthcare indices before and after the COVID-19 pandemic announcement.ResultsThe results showed a significant drop in count of preconception healthcare visits, first routine laboratory tests, first trimester prenatal care, first trimester sonography, prenatal screening for birth defects at weeks 11–13, prenatal care visits at weeks 16–20, second routine laboratory tests, second trimester sonography, prenatal care visits at weeks 24–30, prenatal care visits at weeks 31–34, postpartum care visits at days 10–15 and postpartum care visits at days 30–42 with the start of the COVID-19 pandemic (−50% (95% CI −48.68% to –51.36%), −19.67% (95% CI −22.12% to –17.15%), −25.88% (95% CI −28.46% to –23.21%), −23.84% (95% CI −26.26% to –21.34%), −20.16% (95% CI −23.01% to –17.20%), −18.53% (95% CI −21.25% to –15.71%), −28.63% (95% CI −31.03% to –26.14%), −27.48% (95% CI −30.07% to –24.79%), −31.08% (95% CI −33.43% to –28.61%), −31.84% (95% CI −34.35% to –29.23%), 32.55% (95% CI −35.12% to –29.89%) and −39.28% (95% CI −41.59% to –36.88%), respectively). Nevertheless, the trend in coverage of these services showed recovery in the subsequent months (8.36%, 10.55%, 5.74%, 8.01%, 4.40%, 5.06%, 11.20%, 7.58%, 7.38%, 7.80%, 9.59% and 9.61% per month, respectively).ConclusionsUsing ecological data during the COVID-19 pandemic era, we observed a ‘level change and slope change’ as the major pattern of interruption of maternal healthcare coverage, indicating a possible indirect effect rather than a causative relationship. Such relative predictability might assist with future pandemic planning.
Effects of dry needling intervention on lower limb dysfunction after stroke: study protocol for a randomised controlled trial
Authors: Tang Li , Liu Shanshan , Gan Lin , Ding Hao , Huang Qiang-Min , Gao Fang , Li Yan 
Published: October 2022

IntroductionLower limb dysfunction is among the common sequelae of patients who had a poststroke and often results in the reduction of the quality of life. This study aims to assess the short and interim-term efficacy of dry needling (DN) intervention on lower extremity function, balance and gait in lower limb dysfunction after stroke.Methods and analysisThis protocol entails an assessor and statistician-blinded, single-centre study with a randomised controlled trial. Forty-four patients who had a poststroke will be randomly allocated (1:1) to either the conventional treatment group (n=22) or the DN group (n=22). The conventional treatment group will receive conventional rehabilitation treatment once a day for 40 min each time. The treatment will be performed five times a week for 2 weeks. In the DN group, participants will be treated with DN on the basis of the conventional treatment. The intervention will be performed thrice a week for 2 weeks. The primary outcome that determines the efficacy of lower limb dysfunction will be the change in the Fugl-Meyer Assessment of Lower Extremity scale. The secondary indicators include the range of motion of knee and ankle joints, limits of stability, modified Clinical Test of Sensory Interaction on Balance, Timed Up and Go test, Modified Ashworth Scale and Barthel Index. Results will be evaluated at baseline, at 24 hours after intervention, at 2 weeks after intervention and at 3-month follow-up. Data will be released after the completion of the study. Adverse events will be reported.Ethics and disseminationThe experiment was approved by the Ethical Committee of Shanghai Tong Ren Hospital in October 2021 (approval number: 202105702). The results of this study will be published in peer-reviewed journals.Trial registration numberChiCTR2000040754.
Prospective multicentre Italian pregnancy cohort study (SIMPLE) on the associations of maternal first trimester SIMPLE nutritional score with early placental function markers and pregnancy outcomes
Authors: Parisi Francesca , Coco Chiara , Cetin Irene 
Published: October 2022

IntroductionCurrently, the adherence to nutritional guidelines is low, with alarming rates of obesity worldwide and micronutrient deficiencies documented even in industrialised countries. As a consequence, nutritional screening and counselling represent a critical subject in early pregnancy, aiming to improve pregnancy outcomes and population health.Methods and analysisIn this setting, the development of a simple and reproducible nutritional checklist is of utmost importance. The Simple Study is a longitudinal prospective multicentre study aiming to identify the associations between maternal nutritional habits in the first trimester, early markers of placental function and pregnancy outcomes on a large population of singleton pregnancies in Italy.Ongoing healthy singleton pregnancies will be enrolled at the ultrasound scan of the first trimester combined screening test (11+0–13+6gestational weeks). A nutritional score measuring the adherence to a healthy diet and nutritional deficiencies will be collected at recruitment. Fetal (crown-rump length, nuchal translucency (NT), biparietal diameter, femur length) and utero placental (placental volume, uterine arteries Doppler velocimetry) ultrasound data and biochemical placental markers (pregnancy-associated plasma protein A, free ß-human chorionic gonadotropin) will be collected. Second and third trimester ultrasound records and birth outcomes will be recorded from medical registers. This study will set the stage for introducing a reproducible, time-saving and low-cost nutritional screening in pregnancy. The nutritional score will allow the implementation of specific corrective measures with potential large impact on placentation and pregnancy outcomes.Ethical and disseminationEthical approval for this study was obtained from the Milano Area 1 Ethics Committee (No 46091, 7 November 2018) prior to the commencement of the research.The dissemination plan includes the presentation of abstracts and findings at national and international scientific meetings.
Acceptability and feasibility of an online information linker service for caregivers who have a child with genetic epilepsy: a mixed-method pilot study protocol
Authors: Robertson Eden G , Kelada Lauren , Best Stephanie , Goranitis I , Grainger Natalie , Le Marne Fleur , Pierce Kristine , Nevin Suzanne M , Macintosh Rebecca , Beavis Erin , Sachdev Rani , Bye Annie , Palmer Elizabeth E 
Published: October 2022

IntroductionDevelopmental and epileptic encephalopathies (DEEs) are rare epilepsy conditions that collectively impact 1 in 2000 children. They are highly genetically heterogeneous, resulting in significant barriers to accurate and adequate information for caregivers. This can lead to increased distress and dissatisfaction with the healthcare system. To address this gap, we developed ‘GenE Compass’ to provide caregivers with the highest-quality possible, understandable and relevant information in response to specific questions about their child’s DEE. Using a mixed-method design, we will now pilot GenE Compass to evaluate the acceptability to caregivers and clinicians, feasibility and impact to caregivers.Methods and analysisWe will recruit 88 caregivers (estimated final sample of 50 at follow-up) who have a child under 18 years of age with a suspected or confirmed DEE diagnosis. Following consent and a baseline questionnaire (questionnaire 1 (Q1)), participants will be able to submit questions to GenE Compass over a 3-month period. After 3 months, participants will complete a follow-up questionnaire (Q2) and an optional telephone interview to answer the research questions. Primary outcomes are acceptability of GenE Compass and feasibility of delivering the intervention (eg, cost of the intervention, number of questions submitted and time taken to respond to questions). Secondary outcomes include the impact of GenE Compass on caregivers’ quality of life, information searching behaviours, perceptions of their child’s illness and activation.Ethics and discussionThe study protocol (V.2, dated 16 September 2021) has been approved by the Sydney Children’s Hospitals Network Human Research Ethics Committee (ETH11277). The results will be disseminated in peer-reviewed journals and at scientific conferences. A lay summary will be disseminated to all participants.Trial registration numberACTRN12621001544864.
Vulnerability of populations to malaria after indoor residual spraying is withdrawn from areas where its use has previously been sustained: a protocol for a systematic review
Authors: Orishaba Philip , Kayongo Edward , Lusiba Pastan , Nakalema Caroline , Kasadha Peter , Kirya Perez , Kawooya Ismael , Mijumbi-Deve Rhona 
Published: October 2022

IntroductionWith its proven effectiveness, indoor residual spraying (IRS) as a malaria vector control strategy forms one of the reliable vector control strategies, especially when at least 80% of the population is covered. However, to date, there is uncertainty regarding the consequences of IRS withdrawal on malaria control when there is no clear exit strategy in place. Therefore, there is a need to comprehensively update literature regarding malaria burden indicators when IRS is withdrawn following sustained use.Methods and analysisThis protocol follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A systematic search of studies published between 2000 and 2022 will be performed in CINAHL, Embase, MEDLINE, ProQuest, PsychInfo, Scopus and OpenGrey. Preset eligibility criteria will be used to identify studies for inclusion by two independent reviewers. Title/abstracts will first be screened and potentially eligible ones screened using their full-text publications. Any conflicts/discrepancies at the two stages will be resolved through regular discussion sessions. Included studies will be extracted to capture study and patient characteristics and relevant outcomes (malaria incidence and malaria vector abundance). Relevant tools will be used to assess the risk of bias in the studies measuring the impact of withdrawal. A meta-analysis will be performed if sufficient homogeneity exists; otherwise, data arising will be presented using tables and by employing narrative synthesis techniques. Heterogeneity will be assessed using a combination of visual inspection of the forest plot along with consideration of the χ2test and I2statistic results.Ethics and disseminationEthics approval is not applicable for this study since no original data will be collected. The results will be disseminated through peer-reviewed publications and conference presentations. Furthermore, this systematic review will inform the design of exit strategies for IRS-based programmes in malaria-endemic areas.PROSPERO registration numberCRD42022310655.
Cohort profile: the Swedish Maternal Microbiome project (SweMaMi) – assessing the dynamic associations between the microbiome and maternal and neonatal adverse events
Authors: Fransson Emma , Gudnadottir Unnur , Hugerth Luisa W , Itzel Eva Wiberg , Hamsten Marica , Boulund Fredrik , Pennhag Alexandra , Du Juan , Schuppe-Koistinen Ina , Brusselaers Nele , Engstrand Lars 
Published: October 2022

PurposeThe Swedish Maternal Microbiome (SweMaMi) project was initiated to better understand the dynamics of the microbiome in pregnancy, with longitudinal microbiome sampling, shotgun metagenomics, extensive questionnaires and health registry linkage.ParticipantsPregnant women were recruited before the 20th gestational week during 2017–2021 in Sweden. In total, 5439 pregnancies (5193 unique women) were included. For 3973 pregnancies (73%), samples were provided at baseline, and for 3141 (58%) at all three timepoints (second and third trimester and postpartum). In total, 31 740 maternal microbiome samples (vaginal, faecal and saliva) and 3109 infant faecal samples were collected. Questionnaires were used to collect information on general, reproductive and mental health, diet and lifestyle, complemented by linkage to the nationwide health registries, also used to follow up the health of the offspring (up to age 10).Findings to dateThe cohort is fairly representative for the total Swedish pregnant population (data from 2019), with 41% first-time mothers. Women with university level education, born in Sweden, with normal body mass index, not using tobacco-products and aged 30–34 years were slightly over-represented.Future plansThe sample and data collection were finalised in November 2021. The next steps are the characterisation of the microbial DNA and linkage to the health and demographic information from the questionnaires and registries. The role of the microbiome on maternal and neonatal outcomes and early-childhood diseases will be explored (including preterm birth, miscarriage) and the role and interaction of other risk factors and confounders (including endometriosis, polycystic ovarian syndrome, diet, drug use). This is currently among the largest pregnancy cohorts in the world with longitudinal design and detailed and standardised microbiome sampling enabling follow-up of both mothers and children. The findings are expected to contribute greatly to the field of reproductive health focusing on pregnancy and neonatal outcomes.
Adapting population health interventions for new contexts: qualitative interviews understanding the experiences, practices and challenges of researchers, funders and journal editors
Authors: Copeland Lauren , Littlecott Hannah J , Couturiaux Danielle , Hoddinott Pat , Segrott Jeremy , Murphy Simon , Moore Graham , Evans Rhiannon E 
Published: October 2022

ObjectivesResearch on the adaptation of population health interventions for implementation in new contexts is rapidly expanding. This has been accompanied by a recent increase in the number of frameworks and guidance to support adaptation processes. Nevertheless, there remains limited exploration of the real-world experiences of undertaking intervention adaptation, notably the challenges encountered by different groups of stakeholders, and how these are managed. Understanding experiences is imperative in ensuring that guidance to support adaptation has practical utility. This qualitative study examines researcher and stakeholder experiences of funding, conducting and reporting adaptation research.SettingAdaptation studies.ParticipantsParticipants/cases were purposefully sampled to represent a range of adapted interventions, types of evaluations, expertise and countries. Semistructured interviews were conducted with a sample of researchers (n=23), representatives from research funding panels (n=6), journal editors (n=5) and practitioners (n=3).MeasuresA case study research design was used. Data were analysed using the framework approach. Overarching themes were discussed within the study team, with further iterative refinement of subthemes.ResultsThe results generated four central themes. The first three relate to the experience of intervention adaptation (1) involving stakeholders throughout the adaptation process and how to integrate the evidence base with experience; (2) selecting the intervention and negotiating the mismatch between the original and the new context; and (3) the complexity and uncertainty when deciding the re-evaluation process. The final theme (4) reflects on participants’ experiences of using adaptation frameworks in practice, considering recommendations for future guidance development and refinement.ConclusionThis study highlights the range of complexities and challenges experienced in funding, conducting and reporting research on intervention adaptation. Moving forward, guidance can be helpful in systematising processes, provided that it remains responsive to local contexts and encourage innovative practice.