Journal of Sport and Health Science最新文献

{"title":"Comment on: Dose-response relationship between exercise and hepatic steatosis: A systematic review with Bayesian network meta-analysis of randomized controlled trials.","authors":"Antonio García-Hermoso, Yasmin Ezzatvar","doi":"10.1016/j.jshs.2026.101163","DOIUrl":"10.1016/j.jshs.2026.101163","url":null,"abstract":"","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":" ","pages":"101163"},"PeriodicalIF":13.1,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148585746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to the comment on \"Dose-response relationship between exercise and hepatic steatosis: A systematic review with Bayesian network meta-analysis of randomized controlled trials\".","authors":"Xinyun Tan, Chunxiang Qin","doi":"10.1016/j.jshs.2026.101164","DOIUrl":"10.1016/j.jshs.2026.101164","url":null,"abstract":"","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":" ","pages":"101164"},"PeriodicalIF":13.1,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148585839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of daily step counts among wearable devices in free-living adults: A systematic review and network meta-analysis.","authors":"Amanda E Paluch, Kelly R Evenson, Eric M Eberl, Susan P Marcotte, Pardis Parvizi, Erika Rees-Punia, Lindsay Toth, David R Bassett","doi":"10.1016/j.jshs.2026.101162","DOIUrl":"10.1016/j.jshs.2026.101162","url":null,"abstract":"<p><strong>Background: </strong>Wearable activity monitors are widely used to measure daily step counts, a simple and health-relevant metric of physical activity. However, differences in sensor technologies, algorithms, and wear locations across devices can result in substantial variability in step count estimates, creating challenges for comparing and harmonizing data across studies and populations. This study aims to compare free-living daily step counts across commonly used activity monitoring devices in adults using network meta-analysis.</p><p><strong>Methods: </strong>We systematically searched PubMed, Scopus, and PsycINFO through November 2025 for studies reporting concurrent daily step measurements using at least 2 devices from our target list of 13 manufacturers of research- and consumer-grade accelerometers and pedometers. Network meta-analysis estimated the ratio of means (ROMs) and mean differences in daily steps between devices.</p><p><strong>Results: </strong>Across 59 studies, most consumer devices, pedometers, and the thigh (ActivPAL) and hip-worn research devices (ActiGraph GT, Axivity, and Actical) were within 10% ROM and <700 steps/day. Wear location was the primary source of variation, with wrist-worn and ankle-worn (StepWatch) research-grade accelerometers estimating 15‒30% more daily steps (+1000 to 2200 steps/day) than hip-worn devices, while consumer-grade wrist devices showed smaller differences (3‒15% higher or +200 to 1000 steps/day).</p><p><strong>Conclusion: </strong>These findings provide researchers with evidence-based guidance for selecting appropriate step devices, interpreting step count data across studies, and considerations when combining data from multiple device types and wear locations.</p>","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":" ","pages":"101162"},"PeriodicalIF":13.1,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148580761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guiding functional near-infrared spectroscopy research on sedentary behavior and brain health.","authors":"Jinming Li, Yanxia Chen, Yiming Tao, Zhihao Zhang, Qian Yu, Haijing Niu, Matthew Heath, Wei-Peng Teo, Cassandra J Lowe, Sebastian Ludyga, Benjamin Tari, Mats Hallgren, Neville Owen, Boris Cheval, Stephane Perrey, Myrto Mavilidi, Fred Paas, Mark J Campbell, Adam Toth, Felix Scholkmann, Uzair Hakim, Flaminia Ronca, Fabian Herold, Liye Zou","doi":"10.1016/j.jshs.2026.101161","DOIUrl":"10.1016/j.jshs.2026.101161","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Excessive exposure to sedentary behavior (SB) is associated with cognitive decline and impaired brain health; however, the neurobiological mechanisms underlying this relationship remain unclear. Functional near-infrared spectroscopy (fNIRS) enables real-time monitoring of cerebral hemodynamics in naturalistic settings and offers unique technical advantages for understanding the effects of SB on brain health. Notably, methodological standardization specific to SB research is lacking, limiting cross-study comparisons and evidence synthesis despite established general fNIRS best practices.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we systematically searched PubMed, Scopus, Web of Science, and PsycINFO through February 2026 for studies using fNIRS to assess SB's effects on brain function. Two independent reviewers conducted study selection, data extraction, and bias risk assessment. We systematically extracted and analyzed instrumentation specifications, spatial positioning, data processing pipelines, statistical methods, and quality control measures to identify methodological variations and best practice patterns in current research.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;From 36,477 initial records, 43 studies encompassing 2751 participants were included. Study types comprised acute (25 studies) and chronic interventions (8 studies) manipulating or monitoring SB patterns as well as cross-sectional studies (10 studies) analyzing the association between SB patterns and fNIRS-related parameters. Substantial heterogeneity was evident for specific methodological aspects, such as the use of diverse fNIRS systems and sampling rates (e.g., spanning 1.81-50.00 Hz), whereas others such as source-detector separation (i.e., 3.0 cm) were relatively homogenous across studies. Critical methodological issues included inadequate reporting of spatial registration and data quality control procedures, inconsistent implementation of multiple comparison corrections, and neglected monitoring of relevant environmental factors and physiological confounds.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;This review provides the first SB-specific standardized methodological framework for fNIRS applications, building on established fNIRS best practices and extending them to address unique challenges of SB research, encompassing 6 core domains: hardware configuration, extended monitoring protocols, data processing, statistical analysis, quality assessment, and SB-specific reporting. Recommendations are systematically classified by evidence level, distinguishing minimum reporting standards applicable across all laboratories from best practices and aspirational approaches for well-resourced settings. Minimum recommendations include reporting optode geometry and placement with sufficient detail for replication and, where feasible, using short-separation regression (or a clearly jus","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":" ","pages":"101161"},"PeriodicalIF":13.1,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148580809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CXCL2 is a modifiable driver of sarcopenic inflammation attenuated by exercise in older women: Integrated transcriptomic and experimental evidence.","authors":"Juyeon Lee,Sung-Wook Chun,Subin Choi,Jae Sook Kang,Seong Jun Park,Yong Ryoul Yang,Hwa-Rim Lee,Kyung-Ha Lee","doi":"10.1016/j.jshs.2026.101159","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101159","url":null,"abstract":"BACKGROUNDSarcopenia is a progressive muscle-wasting condition driven in part by chronic inflammation; however, the specific inflammatory mediators that contribute to functional decline in humans and their responses to exercise remain poorly defined.METHODSWe analyzed public ribonucleic acid (RNA) datasets to identify inflammatory pathways associated with aging and exercise. Additionally, we validated candidate factors in older adults through 2 human studies. Complementary cellular and animal experiments were performed to dissect the mechanistic responses to muscle atrophy, injury, and exercise-mimetic therapies.RESULTSC-X-C motif chemokine ligand 2 (CXCL2) was identified as a prominent age-associated exercise-responsive inflammatory factor in human datasets. In older adults, plasma CXCL2 levels increased with sarcopenia severity and correlated with SPS-defined functional impairment (r = 0.6472, p = 0.0003). In the 48-week human intervention, structured exercise substantially improved strength, mobility, and endurance and markedly reduced circulating CXCL2 (p < 0.0001) and tumor necrosis factor-alpha (TNF-α) levels (p < 0.0001). In contrast, individuals in the non-exercise group exhibited progressive functional decline and increased cytokine levels. Moreover, Cxcl2 expression was upregulated in the skeletal muscles of aged mice and induced by muscle atrophy or injury (p = 0.0082). In contrast, exercise-mimetic stimulation and acute endurance exercise suppressed Cxcl2 expression (p = 0.0148, p = 0.0072). Importantly, blocking CXCL2-CXCR2 signaling attenuated dexamethasone-induced expression of the atrophy markers Fbxo32 (p = 0.0336, 0.0127, 0.0061) and Trim63 (p = 0.0296, 00160, 0.0042).CONCLUSIONHuman evidence from year-long clinical exercise interventions, supported by transcriptomic, cellular, and animal experiments, identified CXCL2 as a modifiable inflammatory mediator linking aging to muscle atrophy. Consistent suppression of CXCL2 by exercise and attenuation of atrophic signaling through CXCR2 inhibition highlights the CXCL2-CXCR2 axis as a promising target for mitigating sarcopenia.","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"34 1","pages":"101159"},"PeriodicalIF":11.7,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148552299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deficits in quadriceps voluntary activation following anterior cruciate ligament reconstruction do not improve over time despite increases in quadriceps strength: A systematic review with meta-regression analyses of temporal trends.","authors":"Shane C Scott,Daniel Kadlec,Dana Hince,Kieren G Hill,Ebonie Rio,Ann-Maree Vallence,George H White,Myles C Murphy","doi":"10.1016/j.jshs.2026.101160","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101160","url":null,"abstract":"BACKGROUNDQuadriceps weakness is common following anterior cruciate ligament reconstruction (ACLR). Voluntary activation (VA) deficits may contribute to persistent weakness, but their recovery trajectory remains unclear. This systematic review examined temporal changes in quadriceps strength and VA following ACLR.METHODSSix databases and 2 clinical trial registries were searched to March 2025. Studies reporting quadriceps strength and VA following ACLR were included. Random-effects meta-analyses and meta-regression examined temporal trends. Risk of bias was assessed using JBI tools and certainty of evidence using GRADE.RESULTSFifty studies (1772 participants; 91 effect sizes) were included. Three-level meta-regression demonstrated that VA showed no significant improvement over time (0.03% per month, 95% confidence interval (95%CI): -0.25% to 0.29%; mean = 86.8%, 95%CI: 83.9%-89.8%, p = 0.876). Quadriceps strength improved nonlinearly (Q = 31.53, p < 0.001), reaching 2.63 Nm/kg (95%CI: 2.00-3.27) by 69 months. Participant age (p = 0.60), sex (p = 0.50), assessment position (p = 0.44), graft type (p = 0.32) or primary versus secondary reconstruction (p = 0.56) did not moderate VA. Studies that measured VA with the central activation ratio overestimated VA compared to the interpolated twitch technique by 6.5% (95%CI: 2.4%-10.6%, p = 0.002). Evidence certainty was rated as very low.CONCLUSIONFollowing typical rehabilitation, quadriceps strength improved over time, whereas VA showed no detectable recovery. Strength recovery may therefore occur despite ongoing impairments in neural activation, suggesting strength symmetry alone may overestimate neuromuscular recovery. Given the very low certainty of evidence, these findings should be interpreted cautiously.","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"14 1","pages":"101160"},"PeriodicalIF":11.7,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148552293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exercise for core ADHD symptoms and executive functions in children and adolescents with ADHD: A network and dose-response meta-analysis.","authors":"Meng Zhang,Changshuang He,Xiang Gao,Zongyu Fan,Keyu Pan,Huan Huang,Shanru Jin,Yiting Wei,Wanqun Xu,Jiahui Ling,Minghui Quan","doi":"10.1016/j.jshs.2026.101157","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101157","url":null,"abstract":"PURPOSEThe purpose of this study was to identify the most effective exercise modalities and the recommended doses for alleviating core attention-deficit/hyperactivity disorder (ADHD) symptoms and enhancing executive functions (EFs) in children and adolescents with ADHD.METHODSA systematic search for randomized controlled trials involving exercise interventions in children and adolescents with ADHD (aged 6-18 years) was conducted across 8 electronic databases from inception to August 23, 2025. Outcomes included core ADHD symptoms and EFs. Two independent reviewers assessed the quality of the literature and evidence. A Bayesian arm-based multilevel dose-response network meta-analysis was conducted using a random effects model.RESULTSA total of 39 studies involving 1836 participants were included. Compared with the control group, closed-skill exercises (Hedges'g = -0.54, 95% credible interval (95%CrI): -0.74 to -0.35, surface under the cumulative ranking curve (SUCRA) = 0.71) demonstrated the most significant improvement in core ADHD symptoms, while open-skill exercises (Hedges'g = -0.68, 95%CrI: -0.84 to -0.53, SUCRA = 0.87) exhibited the greatest efficacy in enhancing EFs. The overall exercise dose was positively correlated with the improvement in core ADHD symptoms, with an estimated minimum dose of approximately 660 metabolic equivalents (METs)-min/week (95%CrI: 470-1162 METs-min/week) required to achieve the minimal clinically important difference (MCID). An inverted U-shaped dose-response relationship was observed for EFs, where the minimum overall exercise dose to achieve the MCID was estimated to be approximately 740 METs-min/week (95%CrI: 600-1000 METs-min/week), with no clear additional benefits observed beyond roughly 1210 METs-min/week (95%CrI: 1090-1530 METs-min/week).CONCLUSIONClosed-skill and open-skill exercises were, respectively, the most effective modalities for improving core ADHD symptoms and EFs. Based on our exploratory models, a minimum overall exercise dose of approximately 600-800 METs-min/week (roughly 20-25 min/day of 4.5 METs moderate-intensity exercise) may be sufficient to achieve improvements in both core ADHD symptoms and EFs.","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"32 1","pages":"101157"},"PeriodicalIF":11.7,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148539129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comment on \"Fitness and exercise effects on brain age: A randomized clinical trial\".","authors":"Yizhu Cui,Xinxin Ji,Yuchen Wang,Yuanzhuo Jiao,Lingyun Li,Hui Cheng","doi":"10.1016/j.jshs.2026.101155","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101155","url":null,"abstract":"","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"49 1","pages":"101155"},"PeriodicalIF":11.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148521922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Commentary: Exercise as a brake on brain aging - Promise and unresolved questions.","authors":"Meer M Abdulkarim","doi":"10.1016/j.jshs.2026.101156","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101156","url":null,"abstract":"","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"242 1","pages":"101156"},"PeriodicalIF":11.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148521920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermophysiological response of adults to long-distance running in different ACSM environmental risk conditions: A systematic review and meta-analysis.","authors":"Chelsea Blackman,Clint Bellenger,Julien Périard,Daniel Wakim,Samuel Chalmers","doi":"10.1016/j.jshs.2026.101158","DOIUrl":"https://doi.org/10.1016/j.jshs.2026.101158","url":null,"abstract":"BACKGROUNDThe American College of Sports Medicine (ACSM) provides recommendations for exertional heat illness risk assessment in different environmental conditions. The objectives of this study were to explore the thermal and cardiovascular responses of individuals performing self-paced running time trials equal to or greater than 5 km in different environmental risk categories, as determined by the ACSM extreme heat policy.METHODSMEDLINE, PubMed, Scopus, and SPORTDiscus were systematically searched. Eligible studies included self-paced running (of at least 5 km) and reported core temperature and environmental conditions. Studies were sub-grouped according to the ACSM risk categorisation (low/green (≤22.2°C Wet-bulb globe temperature (WBGT)), moderate/yellow (22.3°C‒25.6°C, WBGT), high/orange (25.7°C‒27.8°C, WBGT), or very-high/red (≥27.9°C, WBGT)). Meta-analyses (for each risk category) for pooled aggregate data were conducted using the common-effect inverse-variance model followed by a meta-regression to identify statistical differences between the risk categories RESULTS: : Forty-three studies (48 participant groups) were included with environmental risk conditions ranging from low, moderate, high, and very-high. The high-risk category had the highest end core temperature (39.50°C; 95% confidence interval (95%CI): 39.44°C‒39.55°C), although only the low and high risk groups were significantly different (p = 0.026). Skin temperature was significantly greater in all risk groups when compared to low risk (all p ≤ 0.008) and highest in the very-high risk category (35.46°C; 95%CI: 35.38°C‒35.55°C). High risk resulted in a significantly greater heart rate (185 beats/min; 95%CI: 184‒186 beats/min; p = 0.022) than moderate (181 beats/min; 95%CI: 180-182 beats/min) risk. Percentage body mass loss was highest in the very-high risk group (1.8%; 95%CI: 1.7%-1.9%), but there was not a significant difference between the risk groups (all p > 0.05).CONCLUSIONDescriptive meta-analyses revealed that the thermoregulatory and cardiovascular strain was typically greater in the higher risk categories. However, risk thresholds were not consistently distinct according to the meta-regressions for core temperature, heart rate, % body mass loss, and time-trial performance.","PeriodicalId":48897,"journal":{"name":"Journal of Sport and Health Science","volume":"292 1","pages":"101158"},"PeriodicalIF":11.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148521921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}