BMC sports science, medicine & rehabilitation最新文献

{"title":"Analysis of stress tolerance, competitive-anxiety, heart rate variability and salivary cortisol during successive matches in male futsal players.","authors":"Bruno Laerte Lopes Ribeiro,&nbsp;Nicole Leite Galvão-Coelho,&nbsp;Raíssa Nóbrega Almeida,&nbsp;Gustavo Zampier Dos Santos Lima,&nbsp;Leonardo de Sousa Fortes,&nbsp;Arnaldo Luis Mortatti","doi":"10.1186/s13102-022-00582-3","DOIUrl":"https://doi.org/10.1186/s13102-022-00582-3","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to compare the stress tolerance, competitive anxiety, heart rate variability and salivary cortisol before and during successive futsal competitive matches (3 matches in 4 days) in young male futsal players.</p><p><strong>Methods: </strong>10 young male futsal players (16.9 ± 0.7 age; 71.0 ± 5.1 kg; 174.9 ± 4.3 cm) were monitored during one training session and across a competitive period with 3 successive matches. External load was determined by the PlayerLoad method, while session rating of perceived exertion was used to calculate the internal training and competitive load. The stress tolerance was examined using Daily Analysis of Life Demand in Athletes questionnaire and the Competitive State Anxiety Inventory was used to analyze the competitive anxiety. The Time and frequency monitoring parameters were used to analyze the vagal cardiac autonomic marker. sC was analyzed using enzyme-linked immunosorbent assay.</p><p><strong>Results: </strong>A generalized estimating equation showed a significant difference for PlayerLoad from M1 to TS, M2 and M3, from M2 to M3 (p < 0.05), and for session rating of perceived exertion from M1 to Ts and M3 (p < 0.05). A difference for sources [χ² ₍₃₎ = 1.481, p = 0.68] or symptoms [χ² ₍₃₎ = 3.893, p = 0.27] was not found. There was no significant difference in any of the competitive anxiety [cognitive anxiety (F _{(1.644; 14.799)} = 4.6, p = 0.73, ŋ² p = 0.28), somatic anxiety (F _{(2,09; 18,85)} = 26.07 p = 0.057; ŋ²_p = 0.27) or self-confidence (F_{(2.07; 18.85)} = 15.875 p = 0.152; ŋ²_p = 0.18)] domains. The HRV parameters (time domain and frequency) and Salivary Cortisol (sC) (χ² ₍₃₎ = 4.320 p = 0.229) did not significantly change during the successive matches.</p><p><strong>Conclusion: </strong>The competitive scenario in which the players were evaluated did not significantly modify the stress tolerance, or the athletes' state of anxiety, which in turn was not able to promote changes in the cardiac vagal modulation or in the sC levels before the matches.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"187"},"PeriodicalIF":1.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9623945/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40661439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Within-week differences in external training load demands in elite volleyball players.","authors":"Zeki Akyildiz,&nbsp;Henrique de Oliveira Castro,&nbsp;Erhan Çene,&nbsp;Lorenzo Laporta,&nbsp;Coskun Parim,&nbsp;Emre Altundag,&nbsp;Cengiz Akarçeşme,&nbsp;Giovanni Guidetti,&nbsp;Giovanni Miale,&nbsp;Ana Filipa Silva,&nbsp;Hadi Nobari,&nbsp;Filipe Manuel Clemente","doi":"10.1186/s13102-022-00568-1","DOIUrl":"https://doi.org/10.1186/s13102-022-00568-1","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to analyze the within-week differences in external training intensity in different microcycles considering different playing positions in women elite volleyball players.</p><p><strong>Methods: </strong>The training and match data were collected during the 2020-2021 season, which included 10 friendly matches, 41 league matches and 11 champions league matches. The players' position, training/match duration, training/match load, local positioning system (LPS) total distance, LPS jumps, accelerations, decelerations, high metabolic load distance (HMLD), acute and chronic (AC) mean and AC ratio calculated with the rolling average (RA) method and the exponentially weighted moving average (EWMA) method, monotony and strain values were analyzed.</p><p><strong>Results: </strong>All the variables except strain, Acc/Dec ratio and acute mean (RA) showed significant differences among distance to match days. Regarding the players' positions, the only difference was found in the AC ratio (EWMA); in all microcycles, the middle blocker player showed workload values when compared with the left hitter, setter and libero.</p><p><strong>Conclusion: </strong>Overall, the analysis revealed that the intensity of all performance indicators, except for strain, acc/dec and acute mean load (RA), showed significant differences among distance to match day with moderate to large effect sizes. When comparing players' positions, the middle blocker accumulated the lowest loads. There were no significant differences among other positions.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"188"},"PeriodicalIF":1.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9628072/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40461441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of COVID-19 pandemic restrictions on physical activity and mental health status of Iranian people.","authors":"Esmaeel Saemi,&nbsp;Hadi Nobari,&nbsp;Georgian Badicu,&nbsp;Habibollah Ghazizadeh,&nbsp;Ali Pashabadi,&nbsp;Fatemeh Imani,&nbsp;Filipe Manuel Clemente,&nbsp;Ana Filipa Silva,&nbsp;Sana Afrash","doi":"10.1186/s13102-022-00584-1","DOIUrl":"https://doi.org/10.1186/s13102-022-00584-1","url":null,"abstract":"<p><strong>Background: </strong>Coronavirus-19 (COVID-19) is a highly contagious disease caused by acute respiratory syndrome that can negatively impact physical activity as well as mental health of people in the world. Since Iran is one of the countries deeply affected by the COVID-19 pandemic, therefore, the aim of this study was to investigate the impact of the COVID-19 pandemic restrictions on physical activity behaviours, as well as on mental health indicators among Iranian people.</p><p><strong>Methods: </strong>In this cross-sectional study, 335 participants were included (155 males, mean age = 30.06 ± 14.58 years). Participants were selected through the convenience sampling from different parts of Iran mainly through virtual social networks and filled out an electronic questionnaire in the form of Google Form online survey measuring physical activity behaviours (The International Physical Activity Questionnaire; IPAQ; Short Form) and two mental health indicators-self-esteem (Rosenberg self-esteem scale) and social physical anxiety (7-items social physique anxiety scale). The questionnaires were provided to the participants in the spring of 2021 for 15 days and they were asked to answer it in two periods before the outbreak of coronavirus (winter 2020) and the period during the outbreak of coronavirus (spring 2021).</p><p><strong>Results: </strong>The results showed that participants reported significant differences from before to during the pandemic in all three variables of physical activity (significant decreases), self-esteem (significant decreases), and social physical anxiety (significant increases) regardless of participants' gender. The results of correlation test between changes in physical activity and changes in mental health indicators showed that COVID-19 pandemic negatively impacted self-esteem and social physical anxiety. However, we have not found any significant association of physical activity's change with social physical anxiety or self-esteem's changes before and during the pandemic.</p><p><strong>Conclusions: </strong>The findings of the present study indicate a detrimental effect of the COVID-19 pandemic on the physical activity and mental health among Iranian people. Public policies aiming to buffer the negative impact on COVID-19 Iranians' health are urgently needed.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"186"},"PeriodicalIF":1.9,"publicationDate":"2022-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9617045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40432748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of Aqua Stretching exercises and Pilates on pain, function and spine posture in patients with ankylosing spondylitis: a randomized controlled trial.","authors":"Farzaneh Gandomi,&nbsp;Parviz Soufivand,&nbsp;Mozhgan Ezati,&nbsp;Mehran Salimi,&nbsp;Shirin Assar,&nbsp;Mehran Pournazari,&nbsp;Homayoun Abbasi","doi":"10.1186/s13102-022-00577-0","DOIUrl":"https://doi.org/10.1186/s13102-022-00577-0","url":null,"abstract":"<p><strong>Background: </strong>Aqua Pilates and Aqua Stretch exercises are different and new methods for the rehabilitation of musculoskeletal disorders. This study aimed to compare the effectiveness of Aqua Stretch and Aqua Pilates interventions in the treatment of pain, function, and posture of the spine in ankylosing spondylitis (AS) patients.</p><p><strong>Methods: </strong>Forty patients participated in this study who were randomly allocated into Aqua Stretch, aqua Pilates, and control. The experimental groups received four 60-min training sessions each week for six weeks. However, the control group had only its routine drug treatment (NSAIDs & Anti TNF). Pain with Visual Analog Scale (VAS), function with Bath Ankylosing Spondylitis Functional Index (BASFI) and 40-m walking test (MWT), quality of life with ankylosing spondylitis quality of life (ASQoL), and posture of the spine with the Spinal Mouse were evaluated. Evaluations were performed before and after the interventions. Repeated measure ANOVA was employed to determine the main and interaction effects.</p><p><strong>Results: </strong>Aqua Stretch and Aqua Pilates had a significant effect on pain (Aqua-Pilates: P = 0.0001; Aqua-Stretch: P = 0.0001), BASFI (Aqua-Pilates: P = 0.01; Aqua-Stretch: P = 0.02), 40-MWT (Aqua-Pilates: P = 0.006; Aqua-Stretch: P = 0.0001) and ASQoL (Aqua-Pilates: P = 0.01; Aqua-Stretch: P = 0.001), spinal range of motion (ROM) (Aqua-Pilates: P = 0.0001; Aqua-Stretch: P = 0.0001) at a similar ratio. However, the control group did not present any improvement in these factors (P > 0.05). Moreover, the minimal clinically important difference (MCID) revealed that the Aqua Stretch group performed better than the Aqua Pilates group in terms of VAS, ASQOL, and 40-MWT factors.</p><p><strong>Conclusions: </strong>Aqua Stretch and Aqua Pilates had statistically the same effect on improving pain, function, quality of life, and spinal ROM, while MCID results revealed that the Aqua Stretch group performed better than the Aqua Pilates in terms of VAS-ASQOL-40-MWT. Trial registration It is notable that local ethics committee approval was obtained (IR.KUMS.REC.1399.1137), and the study was registered in Iranian Registry of Clinical Trials (IRCT; IRCT20190426043377N3; registered on 22/05/2021, https://fa.irct.ir/user/trial/56058/view ) and patient recruitments were started on 06/07/2021.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"183"},"PeriodicalIF":1.9,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585788/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40563793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between core muscle endurance and functional movement screen scores in females with lumbar hyperlordosis: a cross-sectional study.","authors":"Eiva Fallahasady,&nbsp;Nafise Rahmanloo,&nbsp;Foad Seidi,&nbsp;Reza Rajabi,&nbsp;Mohammad Bayattork","doi":"10.1186/s13102-022-00567-2","DOIUrl":"https://doi.org/10.1186/s13102-022-00567-2","url":null,"abstract":"<p><strong>Background: </strong>Core muscle endurance is essential for proper movement and lower extremity injury prevention. In addition, the Functional Movement Screen (FMS) score is a tool to assess body movement patterns to predict the risk of injury. Although various researches have investigated the relationship between the core muscle endurance and the FMS score, no study has ever assessed the effect of postural deformity on the FMS score. This study investigates the relationship between core muscle endurance and FMS scores in females with lumbar hyperlordosis.</p><p><strong>Methods: </strong>42 healthy females aged 24.03 ± 4.4 years with hyperlordosis ( > = 45/66 degrees) participated in this study. Core muscle endurance was assessed by the McGill stability test. Correlations were evaluated between the FMS score, McGill test, and lordosis angle using spearman correlation coefficients (p ≤ 0.05).</p><p><strong>Results: </strong>Most individual FMS scores were not correlated with the McGill test except stability trunk push up. Also, lordosis angle was not correlated with the FMS composite score (r=-0.077; p = 0.631), while it was negatively correlated with the McGill test (r=-0.650; p = 0.000).</p><p><strong>Conclusion: </strong>The lack of correlation between the FMS score and the McGill test implies that one's level of core endurance may not influence their functional movement patterns. In contrast, the lumbar lordosis angle might impact one's core muscle endurance but not their functional movement patterns.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"182"},"PeriodicalIF":1.9,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9563468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of influencing factors of passes in the chinese super league.","authors":"Yue Zeng,&nbsp;Hui Zhang","doi":"10.1186/s13102-022-00572-5","DOIUrl":"https://doi.org/10.1186/s13102-022-00572-5","url":null,"abstract":"<p><strong>Background: </strong>In football matches, passing is an important means of organizing attacks, creating shots, changing tactics, and achieving tactical objectives and is a frequently used technique. The purpose of the study was to explore the relevant factors that affect passes in the Chinese Super League (CSL) in different game contexts.</p><p><strong>Methods: </strong>A total of 1,440 matches (2,880 samples) of 24 teams participating in the CSL in the 2014-2019 seasons were selected as the research object, and a mixed linear model was constructed to analyse the influencing factors of passes.</p><p><strong>Results: </strong>(a) The passing success rate and the total number of forward passes were greatly affected by the stage of the season; (b) except for the passing success rate in the 30 m attack area, all other pass indicators in the home matches were significantly higher than those in the away matches; (c) the number of passes in the 30 m attack area was mainly affected by the team level (table position quartile); the higher the team level, the greater the number of passes in the 30 m attack area; (d) all passing indices for the matches between the first eight and the last eight were significantly greater than the matches between the first eight; (e) the passing success rate in the 30 m attack area in winning matches was higher than that in drawn matches; (f) the number of forward passes was significantly greater in matches won by two or more goals, and the number of defender passes was significantly greater in losing matches.</p><p><strong>Conclusion: </strong>The various passing indices of the CSL were affected by different game contexts (including season stage, venue, team level, match type and match outcome), and understanding these influencing factors of passes will help coaches and players better understand football matches.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"180"},"PeriodicalIF":1.9,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9554859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of structured exercises on selected psychological domains in individuals with type 2 diabetes mellitus in Southern Ethiopia institution-based study.","authors":"Muluken Gebeyehu,&nbsp;Kessatie Legesse,&nbsp;Soumitra Mondal,&nbsp;Mahmud Abdulkadir,&nbsp;Zeru Bekelle,&nbsp;Alemayehu Molla","doi":"10.1186/s13102-022-00574-3","DOIUrl":"https://doi.org/10.1186/s13102-022-00574-3","url":null,"abstract":"<p><strong>Background: </strong>Psychological disorders are common among individuals with type 2 diabetes mellitus. The effect of exercise training on psychological disorders like anxiety and depression has not been well studied in Ethiopia. The objective of this study was to assess the effect of structured aerobic and resistance exercises on psychological domains among people with type 2 diabetes mellitus in southern Ethiopia.</p><p><strong>Method: </strong>We began by approaching 97 type 2 diabetic patients who regularly attend follow-up clinics. The 24 study participants were randomly assigned to one of four groups: aerobic exercise (n = 6), resistance exercise (n = 6), combined aerobic and resistance exercise (n = 6), and control group (n = 6). For each arm, the interventions were a structured workout package that was completed without interrupting usual clinical follow-up. The control groups, on the other hand, were kept as follow-up clinical cases with daily routine work. A paired t-test was performed to compare the means and mean differences of each exercise group's pretest and posttest. A Tukey's post hoc test was performed to compare mean differences between groups. The significance level was set at P < 0.05.</p><p><strong>Result: </strong>A more significant change was obtained in the combined aerobic and resistance exercise on anxiety and depression (p = 0.006), social dysfunction (p = 0.009), loss of confidence (p = 0.012) in particular, and psychological wellbeing (p = 0.010) in general. Resistance exercise alone had a significant impact on social dysfunction (p = 0.010), anxiety and depression (p = 0.017), and psychological well-being (p = 0.012) in general. Changes in social dysfunction (p = 0.010), anxiety and depression (p = 0.030), and psychological well-being (p = 0.018) were also influenced by aerobic exercise. The study found no significant change in depression and anxiety among control groups.</p><p><strong>Conclusion: </strong>As a result, the combined effect of aerobic and resistance exercise had a greater influence on improving anxiety and depression, social dysfunction, loss of confidence in particular, and psychological well-being in general among patients with type 2 diabetes. In other words, the present evidence proves the betterment of combined aerobic and resistance exercises alone followed by resistance exercise alone and aerobic exercise alone compared with non-exercise groups seems to upgrade psychological wellbeing by setting up three main benefits named as: (1) anti-anxiety and depression effects; (2) anti-social dysfunction effects; and (3) anti-loss of confidence effects. This suggests that patients with diabetes who exercise regularly enhance their psychological well-being.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"181"},"PeriodicalIF":1.9,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9558398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of trunk exercise upon lumbar IVD height and vertebral compliance when performed supine with 1 g at the CoM compared to upright in 1 g.","authors":"D Marcos-Lorenzo,&nbsp;T Frett,&nbsp;A Gil-Martinez,&nbsp;M Speer,&nbsp;J Swanenburg,&nbsp;D A Green","doi":"10.1186/s13102-022-00575-2","DOIUrl":"https://doi.org/10.1186/s13102-022-00575-2","url":null,"abstract":"<p><strong>Background: </strong>Spinal unloading in microgravity is associated with stature increments, back pain, intervertebral disc (IVD) swelling and impaired spinal kinematics. The aim of this study was to determine the effect of lateral stabilization, trunk rotation and isometric abdominal exercise upon lumbar IVD height, and both passive and active vertebral compliance when performed supine on a short-arm human centrifuge (SAHC)-a candidate microgravity countermeasure-with 1 g at the CoM, compared to that generated with equivalent upright exercise in 1 g.</p><p><strong>Methods: </strong>12 (8 male) healthy subjects (33.8 ± 7 years, 178.4 ± 8.2 cm, 72.1 ± 9.6 kg) gave written informed consent. Subjects performed three sets of upper body trunk exercises either when standing upright (UPRIGHT), or when being spun on the SAHC. Lumbar IVD height and vertebral compliance (active and passive) were evaluated prior to SAHC (PRE SAHC) and following the first SAHC (POST SPIN 1) and second Spin (POST SPIN 2), in addition to before (PRE UPRIGHT), and after upright trunk exercises (POST UPRIGHT).</p><p><strong>Results: </strong>No significant effect upon IVD height (L2-S1) when performed UPRIGHT or on the SAHC was observed. Trunk muscle exercise induced significant (p < 0.05) reduction of active thoracic vertebral compliance when performed on the SAHC, but not UPRIGHT. However, no effect was observed in the cervical, lumbar or across the entire vertebral column. On passive or active vertebral compliance.</p><p><strong>Conclusion: </strong>This study, the first of its kind demonstrates that trunk exercise were feasible and tolerable. Whilst trunk muscle exercise appears to have minor effect upon IVD height, it may be a candidate approach to mitigate-particularly active-vertebral stability on Earth, and in μg via concurrent SAHC. However, significant variability suggests larger studies including optimization of trunk exercise and SAHC prescription with MRI are warranted.</p><p><strong>Trial registration: </strong>North Rhine ethical committee (Number: 6000223393) and registered on 29/09/2020 in the German Clinical Trials Register (DRKS00021750).</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"177"},"PeriodicalIF":1.9,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9540696/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33493109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between high physical activity and premenstrual syndrome in Japanese female college students.","authors":"Rika Kawabe,&nbsp;Chang Yu Chen,&nbsp;Saori Morino,&nbsp;Kohei Mukaiyama,&nbsp;Yuki Shinohara,&nbsp;Masaya Kato,&nbsp;Hiroki Shimizu,&nbsp;Kanako Shimoura,&nbsp;Momoko Nagai-Tanima,&nbsp;Tomoki Aoyama","doi":"10.1186/s13102-022-00569-0","DOIUrl":"https://doi.org/10.1186/s13102-022-00569-0","url":null,"abstract":"<p><strong>Background: </strong>In recent years, moderate physical activity has attracted the attention of experts and women as a way to cope with premenstrual syndrome (PMS). Studies investigated the effects of exercise on PMS, but only a few reports focused on the relationship between physical activity, which included not only exercise but also routine bodily movements, and PMS. Therefore, the present study investigated the relationship between the amount of physical activity and PMS symptoms among sexually mature female students.</p><p><strong>Methods: </strong>A total of 381 female university students in Japan were surveyed using a paper or web-based questionnaire with the same content. The questionnaire consisted of basic information, PMS symptoms, and physical activity based on the International Physical Activity Questionnaire (IPAQ). Participants were divided into two groups (≥ 3000 The Metabolic Equivalent of Task (MET)-minutes/week and < 3000 MET-minutes/week) based on their total physical activity as calculated using the IPAQ guidelines. The two groups were then compared in terms of the severity of their PMS physical and psychological symptoms as calculated based on the American College of Obstetricians and Gynecologists' PMS diagnostic criteria. The Wilcoxon's rank-sum test was used for statistical analyses. We then divided the participants based on the presence or absence of each symptom and used the chi-square test to compare the intergroup differences in ratios. The statistical significance level was set at p < 0.05.</p><p><strong>Results: </strong>Those with total physical activity of ≥ 3000 MET-minutes/week had lower total PMS symptom scores (p < 0.01), physical symptom scores (p = 0.01), and psychological symptom scores (p = 0.01) compared with those with total physical activity of < 3000 MET-minutes/week.</p><p><strong>Conclusion: </strong>These results suggest that young women with high physical activity (≥ 3000 MET-minutes/week) have milder symptoms of PMS.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"175"},"PeriodicalIF":1.9,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9511710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validity of the frame subtraction method in dynamic postural stability.","authors":"Megumi Ota,&nbsp;Hiroshige Tateuchi,&nbsp;Takaya Hashiguchi,&nbsp;Karen Fujiwara,&nbsp;Ayano Sasaki,&nbsp;Kiseki Okumura,&nbsp;Noriaki Ichihashi","doi":"10.1186/s13102-022-00570-7","DOIUrl":"https://doi.org/10.1186/s13102-022-00570-7","url":null,"abstract":"<p><strong>Background: </strong>The movement of targeted subjects can be calculated using the frame subtraction method. However, the validity of this evaluation method of dynamic postural stability has not been clarified yet. This study aimed to verify the validity of the evaluation method for jump landing using the frame subtraction score based on the ground reaction force (GRF).</p><p><strong>Methods: </strong>Twenty subjects performed single-leg jump landing, and their dynamic postural stability index (DPSI), medial‒lateral stability index (MLSI), anterior‒posterior stability index, and vertical stability index (VSI) were calculated from the GRF. Simultaneously, motion images were captured using digital video cameras in the sagittal and frontal planes. After the motion images were analyzed using the frame subtraction method, the frame subtraction scores in the frontal, sagittal, and combined planes were calculated. To confirm its validity, the relationship between the frame subtraction scores and GRF parameters was investigated using Pearson's correlation analysis.</p><p><strong>Results: </strong>The frame subtraction scores in the frontal and combined planes were significantly correlated with the DPSI, MLSI, and VSI (r = 0.46-0.75, P < 0.05).</p><p><strong>Conclusions: </strong>Therefore, the frame subtraction method could be applied to the evaluation of dynamic postural stability. Markerless systems are deemed useful in clinical practice.</p>","PeriodicalId":520573,"journal":{"name":"BMC sports science, medicine & rehabilitation","volume":" ","pages":"174"},"PeriodicalIF":1.9,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9511721/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40375064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}