Journal of Exercise Science & Fitness最新文献

{"title":"Practical internal and external cooling methods do not influence rapid recovery from simulated taekwondo performance","authors":"Pariya Pariyavuth ,&nbsp;Jason Kai Wei Lee ,&nbsp;Pearl Min Sze Tan ,&nbsp;Kanokwan Vichaiwong ,&nbsp;Christopher Mawhinney ,&nbsp;Metta Pinthong","doi":"10.1016/j.jesf.2023.05.003","DOIUrl":"10.1016/j.jesf.2023.05.003","url":null,"abstract":"<div><h3>Background/Objectives</h3><p>The influence of post-exercise cooling on recovery has gained much attention in the empirical literature, however, data is limited in regards to optimizing recovery from taekwondo performance when combat is repeated in quick succession within the same day. The aim of this study was therefore to compare the effects of external and internal cooling after simulated taekwondo combat upon intestinal temperature (T_int), psychomotor skills (reaction time, response time, movement time), and neuromuscular function (peak torque, average power, time to reach peak torque).</p></div><div><h3>Methods</h3><p>Using a randomized counterbalanced crossover design, 10 well-trained male taekwondo athletes completed four recovery methods on separate occasions: passive recovery (CON), a 5-minute thermoneutral water immersion (35°C) (TWI), a 5-min cold water immersion (15°C) (CWI), and ice slurry ingestion (-1°C) (ICE; consumed every 5 min for 30 min). Heart rate (HR), blood lactate (Blac) concentrations, and T_int were determined at rest, immediately after combat, and at selected intervals during a 90-min recovery period. Neuromuscular functional (measured with isokinetic dynamometer) and psychomotor indices were assessed at baseline and after the recovery period.</p></div><div><h3>Results</h3><p>ICE led to a significantly lower T_int at 30 min (P&lt;0.01) and 45 min (P&lt;0.01) after simulated combat; 15-30 min after cessation of ingesting ice slurry, compared with the CON and TWI conditions, respectively. However, there were no differences in T_int across time points between the other conditions (P&gt;0.05). Psychomotor skills and neuromuscular function indices returned to baseline values after the 90 min recovery period (P&gt;0.05) with no differences observed between conditions (P&gt;0.05).</p></div><div><h3>Conclusion</h3><p>The present findings suggest that internal (ICE) and external (CWI) recovery methods appear to have little impact on physiological and functional indices over the time course required to influence repeated taekwondo combat performance.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 3","pages":"Pages 286-294"},"PeriodicalIF":2.8,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cd/53/main.PMC10272492.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9715795","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}

{"title":"Results from the United Arab Emirates 2022 report card on physical activity for children and adolescents","authors":"Ali Muneer Alrahma ,&nbsp;Hanan Al Suwaidi ,&nbsp;Reem AlGurg ,&nbsp;Zeina Farah ,&nbsp;Hamda Khansaheb ,&nbsp;Rahma Ajja ,&nbsp;Mouza Alzaabi ,&nbsp;Aisha Al Hamiz ,&nbsp;Abdulla Aljunaibi ,&nbsp;Abdishakur Abdulle ,&nbsp;Aysha Al Dhaheri ,&nbsp;Syed Mahboob Shah ,&nbsp;Javaid Nauman ,&nbsp;Tom Loney","doi":"10.1016/j.jesf.2023.02.002","DOIUrl":"10.1016/j.jesf.2023.02.002","url":null,"abstract":"<div><h3>Background/Objective</h3><p>The United Arab Emirates (UAE) 2022 Report Card provides a systematic evaluation of the physical activity (PA) levels of children and adolescents in the UAE.</p></div><div><h3>Methods</h3><p>The 2022 Report Card utilized data from 2017 to 2021 to inform 10 core PA indicators that were common to the Global Matrix 4.0.</p></div><div><h3>Results</h3><p>One in five (19%) UAE school children achieved the recommended amount of moderate-to-vigorous PA (i.e. ≥60 min/d; Total Physical Activity Grade F). Less than 1% of school children used active transport to and from school (Active Transportation Grade F). One in four (26%) secondary school children achieved the recreational screen time recommendations (i.e. ≤2 h/d; Sedentary Behaviours Grade D-). A quarter of adults reported achieving the recommended PA level (i.e. ≥150 min of moderate-intensity PA per week, or equivalent) (Family and Peers Grade D-). All school children are taught physical education (PE) by a specialist with at least a bachelor's degree in PE; however, the duration of weekly PE classes varied between schools (School Grade A-). The UAE Government has invested significant funds and resources into developing and implementing strategies and facilities that will increase PA across the entire population (Government Grade B+). Organised Sport and Physical Activity, Active Play, Physical Fitness, and Community and Environment indicators were graded ‘Incomplete’ (INC) due to a lack of available data.</p></div><div><h3>Conclusions</h3><p>Overall, PA levels remain low and sedentary behaviours remain high amongst UAE children and adolescents. The UAE Government has sustained investment in further developing PA opportunities for all children and adults which should translate to increased PA and health improvements at a population level.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 218-225"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/91/2a/main.PMC10009522.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9491470","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}

{"title":"Body composition, cardiorespiratory fitness, and neuromuscular adaptations induced by a home-based whole-body high intensity interval training","authors":"Corentin Scoubeau ,&nbsp;Julie Carpentier ,&nbsp;Stéphane Baudry ,&nbsp;Vitalie Faoro ,&nbsp;Malgorzata Klass","doi":"10.1016/j.jesf.2023.02.004","DOIUrl":"10.1016/j.jesf.2023.02.004","url":null,"abstract":"<div><h3>Background/objective</h3><p>Bodyweight exercises performed at home could be a complementary approach to improve health-related fitness in people having little spare time and during stay-at-home periods. This study then investigated body composition, cardiorespiratory fitness, and neuromuscular adaptations to a home-based, video-directed, whole-body high-intensity interval training (WB-HIIT).</p></div><div><h3>Methods</h3><p>Fourteen subjects participated to an 8-week WB-HIIT (6 females, 23 ± 1 years) and fourteen were included in a non-exercise control group (CTL; 6 females, 24 ± 4 years). All took part to pre- and post-intervention assessments of body composition, peak oxygen uptake (VO₂peak) and first ventilatory threshold (VT1; index of aerobic capacity), dynamic (leg press 3-repetition maximum) and isometric strength (knee extensors maximal isometric contractions with assessment of voluntary activation), and muscle endurance during an isometric submaximal contraction maintained till exhaustion. WB-HIIT consisted in 30-s all-out whole-body exercises interspaced with 30 s of active recovery. Training sessions were performed at home by means of videos with demonstration of exercises. Heart rate was monitored during sessions.</p></div><div><h3>Results</h3><p>WB-HIIT increased VO₂peak (5%), VT1 (20%), leg lean mass (3%), dynamic (13%) and isometric strength (6%), and muscle endurance (28%; p &lt; 0.05), while they did not improve in CTL. VO₂peak increase was correlated (r = 0.56; p &lt; 0.05) with the time spent above 80% of maximal heart rate during training sessions. Isometric strength increase was correlated with change in voluntary activation (r = 0.74; p &lt; 0.01).</p></div><div><h3>Conclusion</h3><p>The home-based WB-HIIT induced concomitant cardiorespiratory fitness and neuromuscular improvements. The predominant effect was observed for aerobic capacity and muscle endurance which could improve exercise tolerance and reduce fatigability.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 226-236"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/76/3f/main.PMC10034507.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9198379","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}

{"title":"Indicators of physical activity and nutritional status among children and adolescents in Zimbabwe: Findings from three global matrix initiatives","authors":"Taru Manyanga ,&nbsp;Daga Makaza ,&nbsp;Nyaradzai E. Munambah ,&nbsp;Carol Mahachi ,&nbsp;Caroline Mavingire ,&nbsp;Tholumusa F. Mlalazi ,&nbsp;Matilda Mukaro ,&nbsp;Tonderayi M. Matsungo","doi":"10.1016/j.jesf.2023.02.001","DOIUrl":"10.1016/j.jesf.2023.02.001","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background/Objectives&lt;/h3&gt;&lt;p&gt;Regular physical activity is associated with several benefits among children and adolescents. Globally, only limited surveillance data, collected using harmonized approaches to accurately compare levels of physical activity among children and adolescents are available. Through its Global Matrix initiatives, Active Health Kids Global Alliance provides an opportunity for participating countries/jurisdictions to compare physical activity levels of children and adolescents based on ten common indicators. The 2022 Zimbabwe Report Card summarizes the best available evidence and assigns grades on these ten indicators of physical activity for children and adolescents.&lt;/p&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;p&gt;Through an iterative process, a team of national experts working in various sectors of physical activity used Active Healthy Kids Global Alliance's Global Matrix benchmarks and grading rubric, to assign Report Card grades on 10 indicators of physical activity (Overall Physical Activity, Organized Sport and Physical Activity, Active Play, Active Transportation, Sedentary Behaviours, Physical Fitness, School, Family and Peers, Community Environment, and Government) among 5-17-year-old children and adolescents in Zimbabwe. Published and unpublished data as well as policy documents informing grades for each indicator were summarized. An unweighted average of all studies with data for an indicator was used to inform the grade assignment. Where data were unavailable or insufficient to provide accurate estimates, an incomplete grade was assigned. The primary purpose of the present study was to synthesize and summarize the best available data and assign grades on 10 common indicators of physical activity for children and adolescents. The secondary objective was to compare Report Grades across three Global Matrix initiatives.&lt;/p&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;p&gt;Grades for the ten common indicators for Global Matrix 4.0 plus Nutritional Status &lt;strong&gt;(B+&lt;/strong&gt;) were assigned as follows: Overall Physical Activity (&lt;strong&gt;C+&lt;/strong&gt;), Organized Sport and Physical Activity (&lt;strong&gt;B-&lt;/strong&gt;), Active Play (&lt;strong&gt;C+&lt;/strong&gt;), Active Transportation (&lt;strong&gt;B&lt;/strong&gt;), Sedentary Behaviours (&lt;strong&gt;C&lt;/strong&gt;), Physical Fitness (&lt;strong&gt;Incomplete&lt;/strong&gt;), Family and Peers (&lt;strong&gt;Incomplete&lt;/strong&gt;), School (&lt;strong&gt;C&lt;/strong&gt;), Community and Environment (&lt;strong&gt;C-&lt;/strong&gt;), Government (&lt;strong&gt;D&lt;/strong&gt;). Generally, grades for individual behaviours (Physical Activity, Organized Sport and Physical Activity, Active Play, Active Transportation, Sedentary Behaviours) were higher than for sources of influence (Family and Peers, School, Community and Environment, Government). Across 3 Global Matrices, the grade for Overall Physical activity (&lt;strong&gt;C+&lt;/strong&gt;) did not change, Community and Environment (&lt;strong&gt;F, D, C-&lt;/strong&gt;) steadily improved over time; while those for Active Transportation, Sedentary Behaviours and S","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 202-209"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/22/b5/main.PMC9944127.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10792628","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}

{"title":"Validity and reliability of upper extremity star excursion balance test in adolescent swimmers","authors":"Hao-Ran Xu ,&nbsp;Yong-Hui Zhang ,&nbsp;Yuan Mao ,&nbsp;Thanh Luan Ngo ,&nbsp;Qiong Zhang ,&nbsp;Gang He ,&nbsp;Zhimin Feng ,&nbsp;Wenjia Sun ,&nbsp;Xue-Qiang Wang","doi":"10.1016/j.jesf.2023.02.003","DOIUrl":"10.1016/j.jesf.2023.02.003","url":null,"abstract":"<div><h3>Background/Objectives</h3><p>Upper limb balance is one of the important physical fitness parameters for all populations, especially overhead athletes like swimmers. Upper extremity star excursion balance test (UESEBT) is a comprehensive dynamic balance assessment, this study aims to explore the reliability and validity of UESEBT among adolescent swimmers.</p></div><div><h3>Methods</h3><p>This cross-sectional study recruited 70 adolescent swimmers. All participants were required to complete UESEBT, upper quarter Y-balance test (UQYBT), maximal isometric strength (MIS) tests in upper limb, closed kinetic chain upper extremity stability test (CKCUEST), trunk flexor endurance test (TFET) and lateral trunk endurance test (LTET). The intra- and inter-operator reliability and the correlation of UESEBT with other physical performances were conducted.</p></div><div><h3>Results</h3><p>For reliability, the intra- and inter-operator reliability of all directions and composite score were high-to-excellent (ICC = 0.706−1.000) among all participants. For validity, the UESEBT has a moderate-to-strong correlation with UQYBT (<em>r</em> = 0.42−0.72, <em>p</em> &lt; 0.001), and a weak-to moderate one with CKCUEST (<em>r</em> = 0.25−0.42, <em>p</em> &lt; 0.05). Furthermore, the UESEBT performance showed weak-to-moderate correlations with MIS (<em>r</em> = 0.24−0.44, <em>p</em> &lt; 0.05). UESEBT was correlated to LTET (<em>r</em> = 0.24−0.33, <em>p</em> &lt; 0.05) whereas no relationship was found with TFET.</p></div><div><h3>Conclusions</h3><p>UESEBT was a reliable and valid tool to screen upper extremity dynamic balance among adolescent swimmers. UESEBT provides more detailed information in eight directions to assess the upper limb sport performance. Further study should explore the prediction ability of UESEBT for injury.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 210-217"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/80/c1/main.PMC10009542.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9120339","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}

{"title":"Associations between 24-h movement behaviours and BMI in Chinese primary- and middle- school students","authors":"Huan Chen ,&nbsp;Li-juan Wang ,&nbsp;Fei Xin ,&nbsp;Guo Liang ,&nbsp;Yu-lan Zhou","doi":"10.1016/j.jesf.2023.01.002","DOIUrl":"10.1016/j.jesf.2023.01.002","url":null,"abstract":"<div><h3>Purposes</h3><p>This cross-sectional study aimed to examine the associations between the 24-h movement behaviours and body mass index (BMI) of students from China by using compositional data analysis.</p></div><div><h3>Methods</h3><p>A total of 389 students aged 6–16 years participated in this study. Accelerometers were used to measure moderate-to-vigorous physical activity (MVPA), light-intensity physical activity (LPA), sedentary behaviour (SED), and sleep. Weight and height were objectively measured. The association between 24-h movement and BMI was analyzed by using compositional data analysis<em>.</em></p></div><div><h3>Results</h3><p>Time reallocation using minutes and proportions created major differences to the results. Reallocating 10 min from other movement behaviours to MVPA was associated with decreased BMI z-score of 1.372 to 0.158 among primary-school students. Reallocating 10 min from sleep and SED to MVPA, and from sleep and SED to LPA were associated with decreased BMI z-score of 0.505 to 0.017 among middle-school students. Reallocating 10% of time from all other components to SED and sleep were associated with a higher BMI z-score by 0.148 (95%CI: 0.020; 0.276) and 0.125 (95%CI: 0.046; 0.204), while reallocating time to MVPA was associated with a decrease in BMI z-scores of 0.132 (95%CI: -0.193; −0.070) among primary-school students. Reallocating 10% of time from all other components to SED was associated with a higher BMI z-score of 0.254 (95%CI: 0.165; 0.345), whereas reallocating time to MVPA and LPA was associated with a decrease in BMI z-scores of 0.039 (95%CI: -0.073; −0.005) and 0.093 (95%CI: -0.153; −0.033) among middle-school students.</p></div><div><h3>Conclusion</h3><p>Research results of 10-min one-to-one reallocation may be treated cautiously due to uneven distribution of time in 24-h movement behaviours. Based on the results of 10% one-to-remaining reallocation, replacing SED with MVPA may be an appropriate target for adiposity intervention in primary-school students, while increasing MVPA or LPA at the expense of SED may be effective in controlling adiposity of middle-school students in China.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 186-192"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7e/74/main.PMC9937977.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10774179","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}

{"title":"Acute cardiovascular responses to unilateral bicep curls with blood flow restriction","authors":"Xiangyu Zheng ,&nbsp;Samuel A.E. Headley ,&nbsp;Stephen A. Maris ,&nbsp;Daniel M. Smith","doi":"10.1016/j.jesf.2023.01.001","DOIUrl":"10.1016/j.jesf.2023.01.001","url":null,"abstract":"<div><h3>Background/Objectives</h3><p>A consensus on the acute cardiovascular responses to low intensity (LI) resistance exercise (RE) combined with blood flow restriction (BFR) has not yet been reached. This study was designed to compare acute cardiovascular responses to a single bout of LIRE, high intensity (HI) RE, and LIRE with BFR in physically active young males.</p></div><div><h3>Methods</h3><p>Participants completed 3 RE sessions in random order, where each session consists of 4 sets of unilateral dumbbell bicep curls. Cardiovascular hemodynamics were measured at baseline and right after each set of RE.</p></div><div><h3>Results</h3><p>Aortic augmentation index (AIx) was significantly higher after set 2,3,4 of RE in LI + BFR session compared to LI session (P &lt; 0.05). Brachial systolic blood pressure (SBP), heart rate (HR), brachial rate pressure product (RPP), and central RPP responses did not differ between LI and LI + BFR sessions (P &gt; 0.05). HI session had a higher central SBP, brachial RPP, central RPP, and aortic AIx compared to LI session after each set of RE (P &lt; 0.05), but not brachial SBP (P &gt; 0.05).</p></div><div><h3>Conclusions</h3><p>Taken together, this study showed that LIRE combined with BFR acutely augmented aortic stiffness, as also observed in HI session, but myocardial oxygen consumption was only higher in HI session when compared to LI session. Thus, although BFR did not exaggerate cardiovascular responses nor cause extra myocardial oxygen consumption, it should be prescribed with caution when control of acute aortic stiffening is necessary during RE.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 179-185"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e0/bd/main.PMC9906011.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9314927","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}

{"title":"Effects of 12-week combined training versus high intensity interval training on cardiorespiratory fitness, body composition and fat metabolism in obese male adults","authors":"Mattia D'Alleva ,&nbsp;Filippo Vaccari ,&nbsp;Francesco Graniero ,&nbsp;Nicola Giovanelli ,&nbsp;Mirco Floreani ,&nbsp;Federica Fiori ,&nbsp;Michela Marinoni ,&nbsp;Maria Parpinel ,&nbsp;Stefano Lazzer","doi":"10.1016/j.jesf.2023.01.004","DOIUrl":"10.1016/j.jesf.2023.01.004","url":null,"abstract":"<div><h3>Background/Objectives</h3><p>A weekly combination of a high volume of moderate-intensity continuous training (MICT) with a low volume of high-intensity interval training (HIIT) provides important improvements in body composition and physical capacities in individuals with obesity. However, previous studies did not determine the weekly proportions of HIIT and MICT a priori. This study aimed to investigate changes in body composition, physical capacities and the fat oxidation rate in obese male adults by comparing a combination of MICT and HIIT, called combined training (COMB), with HIIT for a 12-week period.</p></div><div><h3>Methods</h3><p>Thirty-four obese male adults (mean age: 39.4 ± 7.0 y; mean body mass index [BMI] 34.0 ± 4.2 kg·m⁻²) participated in this study (n = 18 for COMB, n = 16 HIIT), attending ∼ 36 training sessions. The COMB group performed 3 repetitions of 2 min at 95% of peak oxygen uptake (V’O₂ peak) (e.g., HIIT ≤20%), followed by 30 min at 60% of VO₂ peak (e.g., MICT ≥80%). The HIIT group performed 5–7 repetitions of 2 min at 95% of VO₂ peak. At baseline (PRE) and at the end of the training period (POST), body composition, VO₂ peak, and the fat oxidation rate were measured. The two training programs were equivalent in caloric expenditure.</p></div><div><h3>Results</h3><p>At POST, body mass (BM) and fat mass (FM) decreased by a mean of 3.09 ± 3.21 kg and 3.90 ± 2.40 kg, respectively (P &lt; 0.05), in both groups and V’O₂ peak increased in both groups by a mean of 0.47 ± 0.34 L·min⁻¹ (P &lt; 0.05). The maximal fat oxidation rate increased similarly in both groups from 0.32 ± 0.05 to 0.36 ± 0.06 g·min⁻¹ (P &lt; 0.05).</p></div><div><h3>Conclusion</h3><p>COMB training represents a viable alternative to HIIT to improve anthropometric characteristics, physical capacities and fat oxidation in obese male adults.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 2","pages":"Pages 193-201"},"PeriodicalIF":2.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c0/00/main.PMC9937988.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10768573","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}

{"title":"Corrigendum to “Physical activity in the era of climate change and COVID-19 pandemic: Results from the South Korea's 2022 Report Card on physical activity for children and adolescents” [J Exercise Sci Fitness 21(1) (2023) 26–33]","authors":"Eun-Young Lee ,&nbsp;Yeong-Bae Kim ,&nbsp;Seonyoung Goo ,&nbsp;Okimitsu Oyama ,&nbsp;Jeongmin Lee ,&nbsp;Geonhui Kim ,&nbsp;Heejun Lim ,&nbsp;Hoyong Sung ,&nbsp;Jiyeon Yoon ,&nbsp;Jongnam Hwang ,&nbsp;Sochung Chung ,&nbsp;Hyun Joo Kang ,&nbsp;Joon Young Kim ,&nbsp;Kwon-il Kim ,&nbsp;Youngwon Kim ,&nbsp;Mi-young Lee ,&nbsp;Jung-Woo Oh ,&nbsp;Hyon Park ,&nbsp;Wook Song ,&nbsp;Kyoungjune Yi ,&nbsp;Justin Y. Jeon","doi":"10.1016/j.jesf.2023.01.003","DOIUrl":"10.1016/j.jesf.2023.01.003","url":null,"abstract":"","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 1","pages":"Page 177"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b5/6d/main.PMC9870037.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10695506","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}

{"title":"Effect of Baduanjin exercise on cerebral blood flow and cognitive frailty in the community older adults with cognitive frailty: A randomized controlled trial","authors":"Huiying Lin ,&nbsp;Yu Ye ,&nbsp;Mingyue Wan ,&nbsp;Pingting Qiu ,&nbsp;Rui Xia ,&nbsp;Guohua Zheng","doi":"10.1016/j.jesf.2022.12.001","DOIUrl":"10.1016/j.jesf.2022.12.001","url":null,"abstract":"<div><h3>Background/Objectives</h3><p>Regular Baduanjin exercise training has been shown to be beneficial to the physical and cognitive health of older adults, but the underlying mechanisms remain to be investigated. This study examined the influence of Baduanjin on cerebral hemodynamics in community-dwelling older adults with cognitive frailty.</p></div><div><h3>Design</h3><p>Randomized controlled trial.</p></div><div><h3>Methods</h3><p>A total of 102 eligible participants were randomly allocated into the Baduanjin exercise intervention group (BEG) or usual physical activity control group (CG) for 24 weeks. Cerebral hemodynamic parameters of bilateral middle/anterior cerebral artery and basilar artery, cognitive ability and physical frailty were assessed using Transcranial Doppler (TCD), Montreal Cognitive Assessment (MoCA) and Edmonton Frailty Scale (EFS) at baseline and 24 weeks post-intervention.</p></div><div><h3>Results</h3><p>After 24 weeks intervention, the changes in peak systolic velocity (PSV), mean blood flow velocity (MBFV), and end diastolic velocity (EDV) in the right middle cerebral artery and basilar artery were better in the BEG than in the CG; the increase in MoCA scores and the decrease in EFS scores were significantly higher in the BEG than in the CG. Moreover, the interaction of exercise and time on those variables showed obvious significance.</p></div><div><h3>Conclusions</h3><p>The 24 weeks Baduanjin exercise training had a positive beneficial effect on cerebral blood flow in community-dwelling older adults with cognitive frailty. This may be a potential mechanism by which Baduanjin exercise improves the cognitive frailty in older adults.</p></div><div><h3>Trial registration</h3><p>Chinese Clinical Trial Registry, ChiCTR1800020341.</p></div><div><h3>Date of registration</h3><p>December 25, 2018, <span>http://www.chictr.org.cn/showproj.aspx?proj=29846</span><svg><path></path></svg>.</p></div>","PeriodicalId":15793,"journal":{"name":"Journal of Exercise Science & Fitness","volume":"21 1","pages":"Pages 131-137"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/21/aa/main.PMC9791406.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10840706","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}