Scandinavian Journal of Medicine & Science in Sports最新文献

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Honoring Bengt Saltin: A Decade of Reflection on His Legacy in Exercise Physiology. 纪念本特-萨尔汀:对本特-萨尔坦运动生理学遗产的十年反思。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.70000
Hans-Christer Holmberg
{"title":"Honoring Bengt Saltin: A Decade of Reflection on His Legacy in Exercise Physiology.","authors":"Hans-Christer Holmberg","doi":"10.1111/sms.70000","DOIUrl":"https://doi.org/10.1111/sms.70000","url":null,"abstract":"","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e70000"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819104","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}
引用次数: 0
Correction to "The Effect of Blood Flow Restriction Exercise Prior to Total Knee Arthroplasty on Postoperative Physical Function, Lower Limb Strength and Patient-Reported Outcomes: A Randomized Controlled Trial". 对“全膝关节置换术前限制血流运动对术后身体功能、下肢力量和患者报告结果的影响:一项随机对照试验”的更正。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14776
{"title":"Correction to \"The Effect of Blood Flow Restriction Exercise Prior to Total Knee Arthroplasty on Postoperative Physical Function, Lower Limb Strength and Patient-Reported Outcomes: A Randomized Controlled Trial\".","authors":"","doi":"10.1111/sms.14776","DOIUrl":"https://doi.org/10.1111/sms.14776","url":null,"abstract":"","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14776"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142802183","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}
引用次数: 0
Influence of Stretch Speed and Arousal State on Passive Ankle Joint Mechanics. 拉伸速度和觉醒状态对被动踝关节力学的影响。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14774
Camila de Paula de Lima, Cassio Victora Ruas, Anthony John Blazevich
{"title":"Influence of Stretch Speed and Arousal State on Passive Ankle Joint Mechanics.","authors":"Camila de Paula de Lima, Cassio Victora Ruas, Anthony John Blazevich","doi":"10.1111/sms.14774","DOIUrl":"10.1111/sms.14774","url":null,"abstract":"<p><p>Studies investigating the mechanisms influencing maximum passive joint range of motion (ROM<sub>max</sub>) and stiffness have not objectively assessed the possible influence of stretch speed and/or arousal state. The purpose of this study was to assess the effects of arousal state and stretch speed on healthy individuals ROM<sub>max</sub>, stiffness, gastrocnemius medialis, and soleus electromyographic activity (EMG). Fourteen participants performed one familiarization and then one testing session on separate days in the laboratory. In the familiarization (Session 1), participants practiced fast (30°/s ankle dorsiflexion) and slow (5°/s) plantar flexor stretches on an isokinetic dynamometer with the knee extended. In the experimental session (Session 2), they performed two slow, then two fast, stretches under three randomized arousal conditions: control (no music), arousing, and relaxing music. Dorsiflexion ROM<sub>max</sub>, ankle joint stiffness, muscle activity during stretch, mean heart rate, and perception of arousal were measured. Perception of arousal was greater in the arousing than relaxing condition (p = 0.001). ROM<sub>max</sub> was greater during fast (69.1° ± 7.8°) than slow stretches (64.9° ± 10.8°; p = 0.002) with no effect of arousal. Stiffness and EMG were higher at faster speeds, with a significantly greater percentage of stiffness observed in the arousing than the other conditions during faster stretches (p = 0.04). ROM<sub>max</sub> was greater at the faster stretch speed despite greater stiffness and muscle activities being produced during the stretch. Thus, despite reflexive muscle activity and viscosity being higher during faster stretches, a greater, not lesser, ROM<sub>max</sub> was observed. Arousal state, at least when altered by music, did not seem to affect ROM<sub>max</sub> but somewhat influenced stiffness in the faster stretches.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14774"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142786826","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}
引用次数: 0
Cognition, Depression, Pain, and Exercise Motives as Predictors of Longitudinal Profiles of Physical Activity During a Seven-Year Follow-Up Among Older Adults. 认知、抑郁、疼痛和运动动机是老年人七年随访期间体育活动纵向概况的预测因素。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14777
Saila Kyrönlahti, Jenni Lehtisalo, Tiia Ngandu, Miia Kivipelto, Timo Strandberg, Riitta Antikainen, Tiina Laatikainen, Hilkka Soininen, Jaakko Tuomilehto, Satu Havulinna, Jenni Kulmala
{"title":"Cognition, Depression, Pain, and Exercise Motives as Predictors of Longitudinal Profiles of Physical Activity During a Seven-Year Follow-Up Among Older Adults.","authors":"Saila Kyrönlahti, Jenni Lehtisalo, Tiia Ngandu, Miia Kivipelto, Timo Strandberg, Riitta Antikainen, Tiina Laatikainen, Hilkka Soininen, Jaakko Tuomilehto, Satu Havulinna, Jenni Kulmala","doi":"10.1111/sms.14777","DOIUrl":"10.1111/sms.14777","url":null,"abstract":"<p><p>This study investigated longitudinal physical activity (PA) profiles over 7 years in the Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER). Cognition, depression, pain, and PA motives were included as determinants of the PA profiles. The 1259 participants, aged 60-77 years at baseline, were randomized into either a control group receiving general health advice, or an intervention group offered a comprehensive 2-year multidomain intervention including physical exercise, diet advice, cognitive training, and vascular risk factor management. The participants reported weekly moderate-intensity PA at baseline and 1, 2, 5, and 7 years after the baseline. Those providing PA data at two or more time points were included (n = 1188). Longitudinal PA profiles were determined using latent class growth analysis, and their associations with baseline determinants via multinomial logistic regression analysis. Interaction terms were added to investigate whether the intervention modified these associations. Six PA profiles were identified: Very high-stable (6%), High-stable (22%), Moderate-declining (47%), Moderate-steeply declining (5%), Low-increasing (9%), and Constantly low (12%). Participants in the intervention group and those motivated by distal and proximal benefits of exercise were likelier to maintain high PA level. Conversely, depressive symptoms and pain were predictors of Constantly low profile. Results show that high baseline PA was generally maintained, while greater variability in PA changes was observed among initially less active participants.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14777"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638919/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Integrating Stair Climbing-Based Exercise Snacks Into the Campus on Feasibility, Perceived Efficacy, and Participation Perspectives in Inactive Young Adults: A Randomized Mixed-Methods Pilot Study. 将爬楼梯运动零食纳入校园对不爱运动的年轻人的可行性、感知效率和参与观点的影响:随机混合方法试点研究》。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14771
Mingyue Yin, Huakun Zheng, Mingyang Bai, Guoyuan Huang, Zhili Chen, Shengji Deng, Mengde Lyu, Jianfeng Deng, Boyi Zhang, Hansen Li, Xing Zhang, Qian Liu, Jonathan P Little, Yongming Li
{"title":"Effects of Integrating Stair Climbing-Based Exercise Snacks Into the Campus on Feasibility, Perceived Efficacy, and Participation Perspectives in Inactive Young Adults: A Randomized Mixed-Methods Pilot Study.","authors":"Mingyue Yin, Huakun Zheng, Mingyang Bai, Guoyuan Huang, Zhili Chen, Shengji Deng, Mengde Lyu, Jianfeng Deng, Boyi Zhang, Hansen Li, Xing Zhang, Qian Liu, Jonathan P Little, Yongming Li","doi":"10.1111/sms.14771","DOIUrl":"10.1111/sms.14771","url":null,"abstract":"<p><p>This 6-week pilot study aimed to investigate the feasibility, perceived efficacy, and participation perspectives of a university campus stair climbing-based exercise snack (ES) intervention and to compare it to moderate-intensity continuous training (MICT). Healthy, young, inactive adults (age: 21.6 ± 2.3 years, BMI: 22.5 ± 3.6 kg/m<sup>2</sup>) were randomly assigned to three groups (ES, MICT, and Control [CON]). ES (n = 14, 6 females) and MICT (n = 13, 9 females) groups performed three sessions per week over 6 weeks, while the control group (n = 15, 9 females) maintained their habitual lifestyle. ES involved 3 × ~30 s 'all-out' stair-climbing (6 flights, total 126 steps and 18.9 m elevation) bouts separated by > 1 h rest, and MICT involved 40 min stationary cycling at 60%-70% HR<sub>max</sub>. Mixed linear effect models were used to explore within and between-group differences, and the change in magnitude was determined using mean difference (MD), 95% confidence interval (CI), and Cohen's d effect size. Fourteen participants also completed post-intervention semi-structured interviews. Retention rates of 93% (ES, 14/15), 93% (MICT, 13/14), and 100% (CON, 15/15) were achieved from baseline to post-assessments, with compliance (participants' attendance to scheduled ES sessions) of 97% (733/756 sessions) and 93% (217/234 sessions) in ES and MICT, respectively. No significant differences were found between ES and MICT for future intentions (4.8 ± 1.4 and 5.0 ± 0.9), enjoyment (PACES, 89.0 ± 16.4 and 94.5 ± 11.9), and satisfaction. A significant group × time interaction was found in the quality of life and perceived stress. ES and MICT significantly increased the quality of life by 8% (MD = 5.5 [95% CI = 0.3, 10.7], Cohen's d = 0.64) and 6% (MD = 4.6 [95% CI = 0.9, 8.2], Cohen's d = 0.88) compared to baseline, whereas CON experienced a significant decrease (MD = -7.9 [95% CI = -14.4, -1.6], Cohen's d = 0.56). ES significantly decreased perceived stress by 7% (MD = -4.6 [95% CI = -8.9, -0.3], Cohen's d = 0.58), while MICT (MD = 2.0 [95% CI = -0.1, 4.1], Cohen's d = 0.28) and CON (MD = -2.4 [95% CI = -6.1, 1.3], Cohen's d = 0.22) had no significant effects. The majority (12/14) of participants generally demonstrated positive attitudes toward participation in ES and found it easier than expected while highlighting enablers, barriers, and future recommendations. Stair climbing-based ES could be integrated into the campus setting, appeared feasible, and was similar to MICT regarding future intentions, enjoyment, and satisfaction. Both ES and MICT might induce relevant positive effects on the quality of life, and ES demonstrated greater benefits compared to MICT or CON for reducing perceived stress. Interviews provided positive insights into fostering adherence to ES among university students.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14771"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142717038","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}
引用次数: 0
The Selection of Sports Schools: The Influence of the Environment on the Development of Youth Athletes' Career Adaptability. 体校选择:环境对青少年运动员职业适应性发展的影响。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14767
Jaakko A O Nikander, Asko Tolvanen, Tatiana V Ryba
{"title":"The Selection of Sports Schools: The Influence of the Environment on the Development of Youth Athletes' Career Adaptability.","authors":"Jaakko A O Nikander, Asko Tolvanen, Tatiana V Ryba","doi":"10.1111/sms.14767","DOIUrl":"10.1111/sms.14767","url":null,"abstract":"<p><p>There are many routes to achieving an elite status in sports, which can be described as a journey that involves many developmental environments. In terms of navigating transitions and across environments, the adolescent years are particularly crucial, and psychosocial skills may assist youth athletes to maintain balance and wellbeing in combining sports and education. The aim of this study was to investigate the environmental differences in career adaptability profiles as students adapt to their sports high schools. A total of 391 student-athletes (51% female, 49% male) from six sports high schools in Finland participated in the study. To compare the environments' features, we created a typology of the environments based on a document analysis methodology. Our quantitative analysis builds upon the findings of the first author, who applied latent profile analysis (LPA) to career adaptability measures across the first year of sports high school. To investigate whether student-athletes have a higher probability of belonging to a profile in certain sports high schools, we used multinomial regression analysis. The results showed that the most sports-focused and centralized environment did not support career adaptability development to the same extent as other environments. Furthermore, we found that student-athletes in the \"highly successful\" environment had the highest probability of belonging to the high or increased career adaptability profile, despite reporting the highest number of sports training hours and high academic success. This study demonstrates the importance of the locality and the authenticity of the environments and of how their features support student-athletes' career adaptability development.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14767"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11635908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Midsole Hardness on Soft Tissue Vibrations: An Ascendant Hierarchical Clustering on 133 Runners. 中底硬度对软组织振动的影响:133名跑步者的上升层次聚类。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14765
Marie-Caroline Play, Marlène Giandolini, Antoine Ravel, Guillaume Y Millet, Jérémy Rossi
{"title":"Effect of Midsole Hardness on Soft Tissue Vibrations: An Ascendant Hierarchical Clustering on 133 Runners.","authors":"Marie-Caroline Play, Marlène Giandolini, Antoine Ravel, Guillaume Y Millet, Jérémy Rossi","doi":"10.1111/sms.14765","DOIUrl":"https://doi.org/10.1111/sms.14765","url":null,"abstract":"<p><p>Soft tissue vibrations (STV) can generate discomfort during running. Recent research has shown that footwear affects the amplitude of STV differently across runners but no studies have linked human characteristics and footwear construction yet. The purpose of this study was to investigate the runner specific STV responses to various midsole hardness and to identify functional groups, that is, groups of runners responding similarly to a given intervention. A total of 133 runners (56 females) with a wide range of anthropometrics and running habits performed an 8.5-min trial at a self-selected speed with three different midsole hardness (soft i.e., 46 Asker C, medium i.e., 58 Asker C and hard i.e., 71 Asker C). STV, kinetics, kinematics and electromyographic activity of gastrocnemius medialis muscle were recorded at minute 8. Mechanical properties of calf muscles were obtained through a standardized impact test on the calf muscles. An ascendant hierarchical clustering was computed to cluster individuals based on their STV amplitudes in the three conditions. Three functional groups with distinctive STV responses were identified. STV amplitude decreased for 61% of runners with the soft condition (SOFT group) and for 11% of runners with the medium condition (MED group), whereas 28% of runners demonstrated greater STV amplitude in the hard condition (HIGH-HARD group). The findings revealed differences between groups in term of body fat percentage, running volume per week, foot/ground angle at initial contact, ankle plantarflexion and flight time. It provides guidelines to recommend footwear reducing STV amplitude based on anthropometrics, running practice and biomechanical characteristics of the runners.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14765"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142786823","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}
引用次数: 0
Exercise Training Counteracts Compromised Mitochondrial Capacity Induced by Energy Restriction in Prediabetics in a Sex-Dependent Manner. 运动训练可抵消糖尿病前期患者因能量限制而导致的线粒体能力下降,且其影响与性别有关。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14768
Magni Mohr, Jerónimo Aragón Vela, May-Britt Skoradal, Martin Thomassen, Søren Andersen Skriver, Mette Hansen, Ioannis G Fatouros, Peter Krustrup, Nikolai B Nordsborg
{"title":"Exercise Training Counteracts Compromised Mitochondrial Capacity Induced by Energy Restriction in Prediabetics in a Sex-Dependent Manner.","authors":"Magni Mohr, Jerónimo Aragón Vela, May-Britt Skoradal, Martin Thomassen, Søren Andersen Skriver, Mette Hansen, Ioannis G Fatouros, Peter Krustrup, Nikolai B Nordsborg","doi":"10.1111/sms.14768","DOIUrl":"10.1111/sms.14768","url":null,"abstract":"<p><p>The objective of this randomized controlled trial was to examine if exercise training can counteract energy restriction-induced impairment of mitochondrial capacity in skeletal muscle of 55-70-years people with prediabetes and metabolic syndrome. The potential impact of sex was explored. Fifty sedentary men and women with prediabetes and metabolic syndrome (age: 61 ± 6 (±SD) years, BMI: 29.6 ± 4.7 kg·m<sup>-2</sup>, body fat content: 37.5% ± 8.2% and VO<sub>2max</sub>: 22.3 ± 5.7 mL·min<sup>-1</sup>·kg<sup>-1</sup>) were randomized to either exercise training and dietary advice (EX-DI) or dietary advice only (DI). Dietary advice aimed to induce weight loss and improve glycemic control. Exercise consisted of 32 ± 2 mixed 30-60 min training sessions with recreational small-sided soccer distributed across 16 weeks. Maximal activity and protein abundance of key regulatory mitochondrial enzymes were determined in m. vastus lateralis pre- and post-intervention. Muscle glycogen content was also determined. Dietary advice only (DI), impaired (p < 0.001) citrate synthase (CS), and 3-hydroxyacyl-CoA dehydrogenase (HAD) maximal activity by 18% ± 43% and 23% ± 19%, respectively. When combined with exercise training, no dietary impairment of CS or HAD maximal activity was detectable. Superoxide dismutase 2 (SOD2) and CS protein expression also declined (p < 0.05) in DI and remained unchanged in EX-DI. In terms of sex differences, a decrease in maximal CS activity in both EX-DI and DI was observed exclusively in men (all p < 0.05). In conclusion, 16 weeks of exercise training counteracts energy restriction-induced impairment in skeletal mitochondrial function in 55- to 70-year-old women and men with prediabetes and metabolic syndrome.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14768"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142740432","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}
引用次数: 0
Optimal Frequency of Interrupting Prolonged Sitting for Cardiometabolic Health: A Systematic Review and Meta-Analysis of Randomized Crossover Trials. 中断长时间坐着对心脏代谢健康的最佳频率:随机交叉试验的系统回顾和荟萃分析。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14769
Mingyue Yin, Kai Xu, Jianfeng Deng, Shengji Deng, Zhili Chen, Boyi Zhang, Yuming Zhong, Hansen Li, Xing Zhang, Meynard John L Toledo, Keith M Diaz, Yongming Li
{"title":"Optimal Frequency of Interrupting Prolonged Sitting for Cardiometabolic Health: A Systematic Review and Meta-Analysis of Randomized Crossover Trials.","authors":"Mingyue Yin, Kai Xu, Jianfeng Deng, Shengji Deng, Zhili Chen, Boyi Zhang, Yuming Zhong, Hansen Li, Xing Zhang, Meynard John L Toledo, Keith M Diaz, Yongming Li","doi":"10.1111/sms.14769","DOIUrl":"10.1111/sms.14769","url":null,"abstract":"<p><p>Increasing evidence highlights the efficacy of interruptions in prolonged sitting (i.e., activity/sedentary breaks) for improving cardiometabolic health, but precise conclusions and recommendations regarding the optimal interruption frequency remain poorly defined. This systematic review and meta-analysis aimed to directly compare the effect of different frequencies of interrupting prolonged sitting on cardiometabolic health and to determine potential moderators. Randomized crossover trials with at least two frequency interruptions compared to a prolonged sitting condition were identified via systematic review. We compared the acute effects of high-frequency (≤ 30 min per bout, HF) versus low-frequency (> 30 min per bout, LF) interruption protocols on various cardiometabolic health outcomes via three-level meta-analysis with pooled effects evaluated within a random-effects model and exploration of potential sources of heterogeneity through subgroup analyses. The quality of evidence was assessed using Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach. Thirteen studies with 211 participants (24-66 years, 41% female) were included. When comparing HF to LF condition, the HF had a significantly greater reduction in glucose (9 studies [n = 740]; Hedge's g = -0.30, 95% CI [-0.57, -0.03], p = 0.03; I<sup>2</sup>-level 3 = 42%, PI [-1.01, 0.41]). However, there was no difference in insulin (4 studies [n = 304]; Hedge's g = -0.22, 95% CI [-0.73, 0.29], p = 0.35; I<sup>2</sup>-level 3 = 52%, PI [-1.18, 0.74]), triglyceride (3 studies [n = 484]; Hedge's g = 0.11, 95% CI [-0.10, 0.30], p = 0.29; I<sup>2</sup>-level 3 = 0%, PI [-0.10, 0.30]), blood pressure (5 studies [n = 352]; Hedge's g = -0.06, 95% CI [-0.41, 0.28], p = 0.69; I<sup>2</sup>-level 3 = 35%, PI [-0.81, 0.62]), and superficial femoral flow-mediated dilation (3 studies [n = 98]; Hedge's g = -0.42, 95% CI [-2.43, 1.60], p = 0.47; I<sup>2</sup>-level 3 = 78%, PI [-4.09, 3.25]) between the two conditions. The quality of evidence was low GRADE for all outcomes. The present study suggests that a higher sedentary interruption frequency might be more efficacious than a lower frequency/higher duration protocol for reducing glucose levels. Based on these findings, interrupting sedentary time at least, every 30 min may be an ideal strategy to improve glucose control.</p>","PeriodicalId":21466,"journal":{"name":"Scandinavian Journal of Medicine & Science in Sports","volume":"34 12","pages":"e14769"},"PeriodicalIF":3.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771820","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}
引用次数: 0
Unpicking Causal Relationships Between Grip Strength and Cardiorespiratory Fitness: A Bidirectional Mendelian Randomization Study. 揭示握力和心肺健康之间的因果关系:一项双向孟德尔随机研究。
IF 3.5 2区 医学
Scandinavian Journal of Medicine & Science in Sports Pub Date : 2024-12-01 DOI: 10.1111/sms.14775
Tom Norris, Rachel Cooper, Victoria Garfield, Mark Hamer, Snehal M Pinto Pereira
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