Vicente de Dios-Álvarez, Alexis Padrón-Cabo, Miguel Lorenzo-Martinez, Ezequiel Rey
{"title":"Effects of Different Recovery Duration on External and Internal Load Measures during Bouts of Small-Sided Games","authors":"Vicente de Dios-Álvarez, Alexis Padrón-Cabo, Miguel Lorenzo-Martinez, Ezequiel Rey","doi":"10.5114/jhk/169520","DOIUrl":"https://doi.org/10.5114/jhk/169520","url":null,"abstract":"The aim of this study was to analyse the effects of different recovery times between bouts of small-sided games (SSG) on external and internal load variables in semi-professional soccer players. Sixteen male semi-professional soccer players performed three 4 vs. 4 + goalkeeper SSG training sessions, each with different recovery bout duration: short (1 min) (SSG1), medium (2 min) (SSG2), and long (4 min) (SSG4). Time motion and neuromuscular measures were collected during all SSGs, in addition, the rating of perceived exertion (RPE) was determined at the end of the last bout of each SSG. Results showed a significant increase in the total number of accelerations (p = 0.016, ES = 0.97, large) and decelerations (p = 0.022, ES = 0.81, large) in SSG4 compared to SSG1. In terms of the internal load, SSG2 showed significantly higher RPE values (p = 0.011, ES = 1.00, large) in comparison with SSG1. If the sessions’ focus is on neuromuscular training, longer recovery times between SSG bouts should be used. Conversely, if the aim is to reach a higher total and running distance at different intensities, a 2-min recovery period between bouts may be more appropriate.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Cristina Barreto, Luís Leitão, Jeferson Macedo Vianna, Rodrigo Poderoso, Victor Machado Reis, Maria Socorro Cirilo-Sousa, Adenilson Targino Júnior, Marcelo Colonna, Gustavo Casimiro-Lopes, Jefferson Silva Novaes
{"title":"Do Men and Women Differ in Hematological Adaptations to 24 Weeks of Crossfit® Training?","authors":"Ana Cristina Barreto, Luís Leitão, Jeferson Macedo Vianna, Rodrigo Poderoso, Victor Machado Reis, Maria Socorro Cirilo-Sousa, Adenilson Targino Júnior, Marcelo Colonna, Gustavo Casimiro-Lopes, Jefferson Silva Novaes","doi":"10.5114/jhk/170885","DOIUrl":"https://doi.org/10.5114/jhk/170885","url":null,"abstract":"Regular exercise can modulate the immune system functioning through changes in the number and function of leukocytes as well as in red blood cells and other typical blood markers. High intensity exercise promotes increases in cytotoxic activity, phagocytic capacity, chemotaxis and cell apoptosis. The aim of the study was to compare the chronic effects of a 24-week training program using CrossFit® methodology on hematological variables of men vs. women. Twenty-nine CrossFit® athletes (35.3 ± 10.4 years, 175.0 ± 9.2 cm, 79.5 ± 16.4 kg) participated in the study. The blood count, the lipid profile and glucose markers were measured every two months during the study period. The erythrocyte count and hemoglobin concentrations increased in months 4 and 6 in men and women, respectively. Hematocrit levels increased in men in months 2, 4 and 6, while in women only in month 6. Red cell distribution width increased in men in month 6 when compared to the value in month 2. Segmented neutrophils increased in men in month 6 and eosinophil levels increased in women in month 6. Differences between the two sexes were observed in monocytes levels at baseline, as well as in months 2, 4 and 6. Cross-Fit® training increased red cell count indicators in both sexes, which may be related to increased erythropoiesis. Some white blood cell counts were altered and these differed between sexes. The number of lymphocytes remained stable throughout the experiment.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cristiano Rafael Moré, Rita Adriana Stoeterau Moré, Daniel Boullosa, Rodolfo André Dellagrana
{"title":"Influence of Intensity on Post-Running Jump Potentiation in Recreational Runners vs. Physically Active Individuals","authors":"Cristiano Rafael Moré, Rita Adriana Stoeterau Moré, Daniel Boullosa, Rodolfo André Dellagrana","doi":"10.5114/jhk/172268","DOIUrl":"https://doi.org/10.5114/jhk/172268","url":null,"abstract":"The aim of this study was to verify post-activation performance enhancement (PAPE) in jumping and sprinting after two endurance volume-equated running protocols with different intensities, in runners vs. active individuals. Nine recreational runners (age: 34.5 ± 9.3 years, body mass: 73.1 ± 11.9 kg, body height: 1.76 ± 0.06 m, 17.4 ± 4.4 %body fat; maximum aerobic speed [MAS]: 16.4 ± 1.0 km·h−1), and 9 active individuals (age: 34.1 ± 9.4 years; body mass: 83.2 ± 7.7 kg; body height: 1.79 ± 0.06 m; 25.6 ± 5.4 %body fat; MAS: 13.3 ± 1.2 km·h−1) volunteered for participation. The evaluations were performed over three days as follows: 1) anthropometric measures, physical fitness tests, and the University of Montreal Track Test (UMTT) to determine MAS and the distance to be covered in the running protocols; 2 and 3) the countermovement jump (CMJ) and the flying 20-m sprint (SPRINT) were assessed pre- and post-running at 70% of MAS or a time trial race (TTR), equated by volume and completed in random order. A three-way ANOVA (time*group*running) was performed to analyze the PAPE effects. The results showed a time effect (F = 10 .716; p < 0.01) and a group*running interaction (F = 12.094; p < 0.01) for the CMJ, indicating that active individuals demonstrated PAPE after running at 70% of MAS, while for runners both running interventions (70% of MAS and TTR) induced PAPE in CMJ performances. For the SPRINT, a time*group interaction (F = 4.790; p = 0.044) and a group effect were observed, with runners showing greater SPRINT performances than active individuals. From the current results, it can be suggested that training background and intensity can modulate PAPE responses in jumping and sprinting after volume-equated running protocols at different intensities.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136058610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manuel Gómez-López, Jesús Rivilla-García, Iván González-García, Sergio Sánchez-López, Salvador Angosto
{"title":"Analysis of Spatial Offensive Performance in Handball: Differences between Men's and Women's Senior World Championships","authors":"Manuel Gómez-López, Jesús Rivilla-García, Iván González-García, Sergio Sánchez-López, Salvador Angosto","doi":"10.5114/jhk/170233","DOIUrl":"https://doi.org/10.5114/jhk/170233","url":null,"abstract":"The aim of this study was to carry out a descriptive analysis of the main performance variables of national teams that competed in the Men's (Germany-Denmark 2019) and Women's (Germany 2017) senior handball World Cups, and to compare the spatial offensive performance indices of laterality and depth according to the gender of players, considering for this purpose the total number of throws made according to the finishing area. A documentary study was carried out based on the total number of throws made in 192 male and 154 female games of 48 national teams belonging to 33 countries, which participated in previous World Cups. The data were collected from the International Handball Federation (IHF) statistics. The results showed that the areas from which the highest number of shots were taken in both World Cups were the central and shallow areas of the field. Several gender differences were observed. More specifically, male teams made much more attempts from the left side area than female teams (data), who finished from the right side (data). The depth index reflected that, although the dominant execution by gender was from deep offensive zones, men's teams finished more often from the 1st offensive line, while female teams finished from the 2nd offensive line. This information will be useful for coaches in designing training tasks and for players in improving decision making.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Teresa Zwierko, Wojciech Jedziniak, Jarosław Domaradzki, Michał Zwierko, Marlena Opolska, Wojciech Lubiński
{"title":"Electrophysiological Evidence of Stroboscopic Training in Elite Handball Players: Visual Evoked Potentials Study","authors":"Teresa Zwierko, Wojciech Jedziniak, Jarosław Domaradzki, Michał Zwierko, Marlena Opolska, Wojciech Lubiński","doi":"10.5114/jhk/169443","DOIUrl":"https://doi.org/10.5114/jhk/169443","url":null,"abstract":"Stroboscopic training enhances perceptual cognition and motor skills; however, neurophysiological mechanisms underlying this adaptation are not fully understood. This study aimed to investigate the effects of a six-week stroboscopic training program on the conductivity of the visual pathway in elite handball players, specifically related to their visual processing of retinal location and viewing conditions. The study included 22 handball players who were randomly assigned to an experimental or a control group. Both groups performed handball-specific in-situ tasks, but only the experimental group underwent stroboscopic training. Participants were assessed three times using visually evoked potential recordings measured by P100 implicit time and amplitude under three viewing conditions (dominant eye, non-dominant eye, and binocular) and two retinal locations (extra-foveal and foveal vision) before and after the six-week training period, and again four weeks later. The results showed a significant TIME vs. GROUP effect of P100 implicit time for the dominant eye in extra-foveal vision (F2,40 = 5.20, p = 0.010, ηp2 = 0.206), extra-foveal binocular viewing (F2,40 = 3.32, p = 0.046, ηp2 = 0.142), and dominant eye foveal vision (F2,40 = 4.07, p = 0.025, ηp2 = 0.169). Stroboscopic training significantly improved early visual processing by reducing the P100 implicit time for the dominant eye and binocular vision, particularly in extra-foveal vision. The improvements were more noticeable in the short compared to the long term.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pablo Rodriguez-Gomez, Cesar Gallo-Salazar, Juan Jose Salinero
{"title":"Prospective and Retrospective Analysis of the Sporting Success of Elite Spanish High and Long Jumpers","authors":"Pablo Rodriguez-Gomez, Cesar Gallo-Salazar, Juan Jose Salinero","doi":"10.5114/jhk/170762","DOIUrl":"https://doi.org/10.5114/jhk/170762","url":null,"abstract":"The aim of the present study was to analyze the sporting progression from U14 to senior categories of elite Spanish high and long jumpers. For prospective analysis, 300 athletes ranked top 20 at U14 were analyzed (153 female and 147 male). For retrospective analysis, 64 athletes ranked in the top 20 in the senior category were included (21 female and 43 male). Ranking positions were registered in each of the seasons where they presented records. Only 6.3% (19) of athletes who reached the top 20 at U14 became successful senior athletes [4.7% (14) of athletes maintained top 20 status throughout their sporting careers from U14 to senior]. The transition rate from U14 to U16 (35.7%) was the most severe drop down in consecutive categories (after this, it ranged from 47.8 to 66.7%). Of the senior top 20 athletes (64), most of them were already ranked top 20 at U16 (59.4%, 38), at U18 (62.5%, 40), at U20 (70.3%, 45) and at U23 (78.1%, 50). Nevertheless, only 34.4% (22) were top 20 when they were U14 athletes. Transition rates in the top 20 senior athletes ranged from 86.7 to 95.5%. Around one out of four (26.6%, 17) of the top 20 senior athletes maintained top 20 status throughout their sporting careers from U14 to the senior category. Although early success is not a good predictor of senior success, successful senior athletes excelled early on and were able to remain in top rankings throughout their sporting careers of national elite jumpers.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sex Differences in Heart Rate Variability and Vascular Function Following High-Intensity Interval Training in Young Adults","authors":"Myong-Won Seo, Tae-Young Park, Hyun Chul Jung","doi":"10.5114/jhk/170964","DOIUrl":"https://doi.org/10.5114/jhk/170964","url":null,"abstract":"High-intensity interval training (HIIT) is superior to other training strategies in both male and female healthy individuals. Understanding sex-specific differences in cardiac auto-regulation may contribute to the optimal training strategies for HIIT. The present study aimed to identify sex differences in heart rate variability (HRV) and vascular function following HIIT in young adults. Twenty-four physically active young male and female adults (M: 12, F: 12, age: 19.5 yr, BMI: 22.1 kg∙m−2) volunteered to participate in the study. Participants performed 10 bouts of HIIT including 20 s of high-intensity cycling at 115–130% Wmax followed by 100 s of recovery. The cardiac auto-regulations including HRV and vascular function were measured at five different time points. The R-R interval, rMSSD, and SDNN were recovered faster in males than in females after 15 min of HIIT. There were sex differences in the autonomic nervous system where ln LF and ln HF activities along with sympathovagal balance (ln LF/HF) were greater in females compared with males immediately and 15 min after HIIT. However, no significant differences in blood pressure and brachial-ankle pulse wave velocity were observed between male and female participants. Overall, HRV was more activated in females than in males following HIIT, but the acute response in vascular function was not different between sexes. In future studies, sex-specific adaptations of cardiac auto regulation following repeated HIIT may need to be performed.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136213563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enrique Alonso Pérez-Chao, Rubén Portes, Miguel Ángel Gómez, Nimai Parmar, Alberto Lorenzo, Sergio L Jiménez-Sáiz
{"title":"A Narrative Review of the Most Demanding Scenarios in Basketball: Current Trends and Future Directions.","authors":"Enrique Alonso Pérez-Chao, Rubén Portes, Miguel Ángel Gómez, Nimai Parmar, Alberto Lorenzo, Sergio L Jiménez-Sáiz","doi":"10.5114/jhk/170838","DOIUrl":"10.5114/jhk/170838","url":null,"abstract":"<p><p>Since the analysis of most demanding scenarios (MDS) in basketball has improved the practical knowledge about match demands and possible impacts for the training process, it seems important to summarize the scientific evidence providing useful information and future directions related to MDS. This review assesses the results reflected in the available literature about the MDS in basketball, synthesizing and discussing data from scientific papers, and then providing relevant insights about terminology, sex and sample size, competition category, workload variables recorded, technology used, method of calculation, time windows analyzed, and activities evaluated related to MDS. Therefore, the present narrative review would be of practical use for coaches, scientists, athletes as well as strength and conditioning trainers exploring the current trends and future directions related to MDS in basketball.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"1 1","pages":"231-245"},"PeriodicalIF":2.3,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10694712/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41981013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trend Change Analysis as a New Tool to Complement the Evaluation of Human Body Balance in the Time and Frequency Domains.","authors":"Piotr Wodarski","doi":"10.5114/jhk/163058","DOIUrl":"10.5114/jhk/163058","url":null,"abstract":"<p><p>Trend change analysis is a tool that complements the assessment of human body stability and provides information on the number and frequency of postural corrections during an examination. The present research aims to determine the possibility of using this method of analysis to investigate postural stability during tests of standing with open eyes (OE) and closed eyes (CE). A total of 118 participants (67 females, 51males) aged 23 (SD 1.3) were assessed. Tests involved standing on a stabilographic platform for 50 s. Trend change analysis was used to evaluate displacement values of the center of pressure (COP). Values for the COP courses as well as values associated with trend change analysis, such as: TCI, MACD_t and MACD_V were determined. Histograms of distribution were plotted for TCI values. The present study provides information on alterations of the strategy used for maintaining balance, which are associated with the number of postural corrections and COP displacement between corrections for measurements taken during the standing test with CE in relation to OE measurements. The strategy demonstrated an ability to detect a smaller number of quick corrections, an increased number of corrections of longer duration, and the elongation of displacement between subsequent postural corrections. Slight standard deviations in TCI and MACD_t values calculated during trend change analysis, for both the OE and CE conditions, made it possible to classify these values as indexes of postural stability with significant sensitivity to slight changes.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"87 ","pages":"51-62"},"PeriodicalIF":2.3,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10407322/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10325897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Omar Younes-Egana, Juan Mielgo-Ayuso, Marko D M Stojanović, Stephen P Bird, Julio Calleja-González
{"title":"Effectiveness of Eccentric Overload Training in Basketball Players: A Systematic Review.","authors":"Omar Younes-Egana, Juan Mielgo-Ayuso, Marko D M Stojanović, Stephen P Bird, Julio Calleja-González","doi":"10.5114/jhk/167469","DOIUrl":"10.5114/jhk/167469","url":null,"abstract":"<p><p>Several studies have confirmed the efficacy of flywheel eccentric overload training in order to improve or increase muscle volume and strength, as well as several performance-related fitness attributes, but to date, there are no studies that have reviewed the effects of these training methods in basketball. Therefore, the present systematic review aimed to collect the updated information about the influence of flywheel training on performance of basketball players. A search in four electronic databases (PubMed, SCOPUS, Web of Science, and Google Scholar) was conducted up to November 20, 2022. Articles were selected as valid for review if: (i) they were an experimental trial published in English; (ii) participants were basketball players without illnesses or injuries, and (iii) a rotational inertial overload method was used as a performance-dependent variable. A total of 93 articles were found. After filtering procedures, only seven studies were considered in this systematic review. In the selected studies, 203 participants were included, 58 females and 145 males. Focusing on basketball related performance variables, all the studies included the countermovement jump (CMJ), while five included sprinting and a change of direction test (COD). The results showed an improvement in performance-related variables associated with basketball (sprint, CMJ, and COD) through the use of inertial methods. Improvements were reported in professional, semi-professional and amateur players as well as both male and female players. However, given the low number of studies, additional investigations on this topic are warranted before a \"clear picture\" can be drawn concerning the effects of flywheel eccentric overload training in basketball players.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"87 ","pages":"243-257"},"PeriodicalIF":2.3,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10407313/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10026909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}