Journal of Human Kinetics最新文献

{"title":"Reliability of Inertial Measurement Unit-Based Spatiotemporal and Kinetic Variables in Endurance Runners during Treadmill Running.","authors":"Unai Miqueleiz, Roberto Aguado-Jimenez, Pablo Lecumberri, Ibai Garcia-Tabar, Esteban M Gorostiaga","doi":"10.5114/jhk/195895","DOIUrl":"10.5114/jhk/195895","url":null,"abstract":"<p><p>Wearable technology for running analysis is growing in both sports science research and applied fields. This study examined the reliability of some spatiotemporal and kinetic variables estimated from an inertial measurement unit (IMU) fastened over the lumbar spine. Eighteen recreational endurance runners performed two maximal incremental treadmill running tests during a 7-10 day period under standard conditions. Contact time (CT), stride time (ST), stride length (SL), stride frequency (SF), as well as anteroposterior (AP) impulses and vertical (VT) peak brake data were analysed at 9, 15 and 21 km•h^-1. Test-retest reliability was measured as the intraclass correlation coefficient (ICC), the coefficient of variation (CV) and minimal detectable change (MDC). No significant differences between tests were observed (p > 0.05; effect size (ES) < 0.28; trivial to small). Reliability increased from 9 to 21 km•h^-1 (ICC from 0.88 to 0.93; ES = 1.0; moderate) and was higher in spatiotemporal (CV < 2.3%) than kinetic variables (CV < 6.8%). This study adds novel data regarding the reliability of the MTw IMU. The results reported in this study enable researchers to determine whether the changes in IMU-derived data are outside of the measurement error following training and rehabilitation settings.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"65-76"},"PeriodicalIF":1.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216071","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":"Post-activation Performance Enhancement Following Maximal Effort, Multi-Joint Isokinetic Eccentric Muscle Actions.","authors":"Tom A Dickey, Brennan J Thompson, Cody M Fisher, Tycen W Flygare, Dale R Wagner","doi":"10.5114/jhk/200324","DOIUrl":"10.5114/jhk/200324","url":null,"abstract":"<p><p>Post-activation performance enhancement (PAPE) is a phenomenon that can enhance muscle performance following maximal or near-maximal muscle actions. While the effects of concentric and isometric conditioning actions on PAPE have been studied, less is known about the influence of eccentric muscle actions. This study investigated the effects of a multi-joint eccentric overload (EOL) protocol on PAPE expressed through countermovement jump (CMJ) height and isokinetic peak force (PF) outcome measures. Twenty-eight recreationally trained participants (18-30 years) completed three visits in a randomized, counterbalanced design. Following familiarization, participants performed either an EOL protocol involving two sets of six maximal isokinetic eccentric actions or a control condition (CON) involving cycling. The CMJ and PF were assessed at baseline and 15 s, 5 min, and 10 min post-exercise. Results showed no significant condition × time interaction or main effect of condition for either CMJ or PF (p > 0.05). However, a significant main effect of time (collapsed across condition) was observed for CMJ (p = 0.019), with post hoc analyses revealing a significantly higher CMJ at 5 min post-exercise compared to 15 s post-exercise (p = 0.037). These findings suggest that this multi-joint eccentric protocol did not effectively elicit PAPE, and therefore may not be optimal for inducing acute performance enhancement. Future research should further elucidate the optimal eccentric loading parameters and muscle action types for inducing PAPE.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"213-223"},"PeriodicalIF":1.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216070","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":"Association of Game-Specific Performance of Young Skilled Basketball Players with Sensorimotor Factors of Agility Skills.","authors":"Erika Zemková, Henrieta Horníková, Filip Skala, Gustáv Argaj","doi":"10.5114/jhk/202260","DOIUrl":"10.5114/jhk/202260","url":null,"abstract":"<p><p>Reactive agility is one of the most important skills in basketball. However, the question remains to what extent the sensory and motor components of agility contribute to specific performance in the game. This study investigated the relationship between indicators of game-specific performance and perceptual-cognitive and physical aspects of agility performance in youth skilled basketball players. A group of 16 basketball players (age 15.5 ± 0.9 years) performed visual perception tasks, divided attention tasks, simple and choice reaction tests, along with Y-shaped and Lane agility tests. Their specific game performance was evaluated using the game statistics analysis. The visual perception score significantly correlated with assists (r = 0.850, p = 0.000), game efficiency (r = 0.760, p = 0.001) and total points scored (r = 0.715, p = 0.003). Coefficients of determination showed that visual perception explained 72.3% of the variance in assists, 57.8% in game efficiency and 51.1% in total points scored. These findings indicate that specific game performance in basketball is not associated with sensory and physical aspects of agility skills in youth players. An exception is visual perception, which plays a significant role in their performance. Players with better visual perception are able to dish out more assists, are more efficient in the game and score more points overall.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"213-223"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199307","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":"Impact of Playing Experience on the Relationship between Basketball Release Velocity and Muscle Contraction Strength in Mid- and Long-Distance Jump Shots.","authors":"Ming Li, Youngsuk Kim, Bin Zhu, Ze Zhang, Sukwon Kim","doi":"10.5114/jhk/196544","DOIUrl":"10.5114/jhk/196544","url":null,"abstract":"<p><p>This study aimed to explore the impact of playing experience on vertical release velocity (VV) and horizontal release velocity (HV) during mid- and long-distance jump shots, and the relationships among VV, HV, and the contraction intensity levels of primary muscles. The study utilized a cross-sectional experimental design, with 30 participants completing three effective jump shots at distances of 4.8 m and 6.75 m. Data were collected using a 3D motion capture system and an electromyography (EMG) recording system, with velocity-time data extracted to determine VV and HV, and EMG data analyzed using wavelet analysis. A two-factor mixed ANOVA was used to compare differences in VV and HV under different conditions, and Spearman correlation analysis was employed to explore relationships among VV, HV, and the energy values of major muscle frequency bands. The results indicated that playing experience significantly improved VV (p < 0.001). At mid-range distances, experienced athletes' VV positively correlated with the low frequency band (r = 0.479, p = 0.048) and near frequency band (r = 0.539, p = 0.038) energy values of the triceps brachii (TB), as well as the high frequency band (r = 0.679, p = 0.005) and mid-high frequency band (r = 0.571, p = 0.026) energy values of the anterior deltoid (AD). At long-range distances, VV negatively correlated with the low frequency band energy values of the flexor carpi radialis (r = -0.5, p = 0.045), the high frequency band of TB (r = -0.564, p = 0.028), and the near frequency band of AD (r = -0.496, p = 0.046). These findings suggest that playing experience significantly alters VV during jump shots, and this alteration may be associated with the overall activity of the TB, the explosive activity of the AD, and the baseline activity of the rectus femoris.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"97-107"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121884/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199311","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":"Training Load and Post-Exercise Recovery Following Varied Game Intervals in 3x3 Basketball.","authors":"Rūtenis Paulauskas, Paulius Kamarauskas, Bruno Gonçalves, Bruno Figueira","doi":"10.5114/jhk/203324","DOIUrl":"10.5114/jhk/203324","url":null,"abstract":"<p><p>The study aimed (I) to quantify external and internal training loads during simulated 3x3 basketball games of 1, 2, 3, and 4 min, each followed by 1-min rest intervals; and (II) to assess the heart rate and muscle oxygen saturation recovery rates following, 1-, 2-, 3-, and 4-min periods of play. Twelve (n = 12) elite male 3x3 basketball players (age: 26.6 ± 5.6 years, body height: 196.8 ± 5.5 cm, body mass: 92.0 ± 9.5 kg, training experience: 15.4 ± 3.9 years, and 3x3 basketball training experience: 4.8 ± 1.6 years) from the Lithuanian national team participated in two controlled simulated games. Differences between playing intervals were analysed using a repeated-measures factorial analysis of variance. The results demonstrated that extended 3x3 basketball play duration led to significant increases in total distance covered, the sprint count, and the jump count, while diminishing dynamic responses in the deceleration rate, average speed, the jump rate, and high-intensity effort. Notably, SmO₂ levels exhibited stability during recovery intervals regardless of activity duration, whereas heart rate recovery improved markedly, particularly following extended play periods. This knowledge is instrumental in refining training protocols for 3x3 basketball, emphasizing the necessity of recovery strategies tailored to specific play duration.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"247-261"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121880/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199368","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":"Wellness, Mood, Sleep, and Performance in a Women's National Basketball Team during International Competition.","authors":"Stephen P Bird, Renée L Parsons-Smith, Rachel King, Peter C Terry","doi":"10.5114/jhk/200117","DOIUrl":"10.5114/jhk/200117","url":null,"abstract":"<p><p>The purposes of this study were to examine relationships between athlete self-report measures of wellness, mood, sleep, and performance indicators of a women's national basketball team during international competition (2023 FIBA Women's Asia Cup). Physical and psychological wellness were recorded using a cloud-based athlete management system, mood was assessed using the 24-item Brunel Mood Scale (BRUMS), and performance was evaluated by player self-assessment and the National Basketball Association's (NBA) player efficiency score. Wellness indicators were rated at or either side of a normal rating (i.e., 3 on a 1-5 scale), as was self-rated performance. Mean sleep duration was 8:13 hours (± 1:13), with large individual differences in retiring time and sleep duration. Mood scores showed a general pattern of declining tension and vigour over the 14-day assessment period. Mood subscales predicted 49.0% of variance in wellbeing scores, 46.8% of variance in preparedness scores, and 26.0% of variance in player efficiency scores. Wellbeing indicators predicted 34.9% of self-rated performance variance and mood subscale scores predicted 27.7% of variance. These findings suggest that female athletes may be particularly susceptible to mood disturbances impacting performance and highlight the potential for targeted interventions, including stress management and sleep optimization, to mitigate these stressors and support mental wellbeing. These strategies may enhance both psychological health and athletic performance during the high stress demands associated with international competition.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"163-175"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199370","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":"Arm Joint Coordination of Collegiate Basketball Athletes and Recreational Players when Shooting behind the 3-Point Line.","authors":"Jiaying Li, Youngsuk Kim, Han Li, Bin Zhu, Sukwon Kim","doi":"10.5114/jhk/203104","DOIUrl":"10.5114/jhk/203104","url":null,"abstract":"<p><p>The primary purpose of this study was to identify exemplary basketball shooting mechanics to devise an effective and efficient training method for successful basketball shooting. Motion data of basketball shots by 10 recreational players and 10 college athletes at three different distances (3.2 m, 5 m, 6.8 m) were collected using 13 cameras (240 Hz). The present study quantified the upper extremity joint coordination using the vector-coded Coupled Angular Variability (CAV). Recreational players exhibited higher CAV at 6.8 m (Median P50 = 16.947), whereas college athletes exhibited higher CAV at 5 m (Median P50 = 18.487). The primary focus of arm coordination patterns was on shoulder joint coordination during the preparation phase, with higher coordination variability associated with greater shot accuracy. Recreational athletes straightened their shoulder and elbow joints simultaneously when performing a basketball shot. In contrast, collegiate athletes showed variations primarily resulting from proximal coordination patterns, leading to a larger range of motion (ROM) for elbow joint flexion and extension. This finding could fundamentally alter how shooting is practiced.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"129-143"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121896/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199306","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":"Internal and External Loads during Formal Training and Competition, Physical Capacities, and Technical Skills in Youth Basketball: A Comparison between Starters and Rotation Players.","authors":"Gonçalo Gonçalves, Paulo Neta, João Ribeiro, Eduardo Guimarães","doi":"10.5114/jhk/201159","DOIUrl":"10.5114/jhk/201159","url":null,"abstract":"<p><p>This preliminary study had two aims: (i) to compare the internal and external loads between training sessions and official games in youth basketball players; (ii) to investigate the effects of the playing role on physical capacities, basketball skills, and internal and external loads accumulated during training and competition. Thirteen under-16 male basketball players, aged 15.30 ± 0.88 years, were followed over 10 consecutive weeks and assigned into two groups according to their playing role: starters and rotation players. Prior to the 10-week monitoring period, players' training experience, basic anthropometrics, physical capacities, and basketball skills were assessed. Then, internal and external loads were monitored in formal training and official competition. Data were analyzed using non-parametric techniques. Players attained significantly higher values in most measures of internal and external loads during official games (r = 0.82 to 0.88, p < 0.01). Starters outperformed rotation players in the 20-m sprint (r = 0.61, p < 0.05), the lane agility drill (r = 0.77, p < 0.01), and the control dribble (r = 0.73, p < 0.01). They also reached a lower HR_peak in practice (r = 0.65, p < 0.05), but a higher %HR_peak (r = -0.61, p < 0.05) and greater scores in the summated-heart-rate-zones model (r = -0.61, p < 0.05) as well as the dynamic stress load during official games (r = -0.57, p < 0.05). The findings highlight that young basketball players apparently do not train as intensely as they play. Moreover, it was during competition that starting players experienced higher internal and external loads. It is recommended that basketball coaches regularly monitor loads in both formal training and competition to closely match game demands when planning their practices. Finally, it is suggested that future research includes larger sample sizes to provide a more comprehensive understanding of both internal and external loads in youth basketball.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"53-67"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121891/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199324","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":"Physical, Physiological, Technical and Tactical Responses According to the Playing Position in Male Basketball: A Systematic Scoping Review.","authors":"Diogo V Martinho, Filipe Manuel Clemente, Miguel Ángel-Gomez, André Rebelo, Adam Field, Catarina C Santos, Élvio R Gouveia, José Afonso, Hugo Sarmento","doi":"10.5114/jhk/203326","DOIUrl":"10.5114/jhk/203326","url":null,"abstract":"<p><p>Understanding how playing position influences physical, physiological, technical, and tactical demands in basketball is essential for optimizing training. Despite numerous studies examining these demands, there remains a need for a comprehensive review focused specifically on male basketball players. This scoping review aimed to summarize these demands during training sessions and games among male professional and semiprofessional basketball players according to playing positions. Following the PRISMA guidelines and its extensions for scoping reviews, four databases (PubMed, Scopus, SPORTDiscus, and Web of Science) were searched. Studies were included if they featured male professional or semiprofessional basketball players, assessments during training or games, and reported relevant demands. Forty-seven manuscripts were reviewed. Key findings revealed notable differences between positions: (i) (i) guards covered greater distances, performing more accelerations and decelerations compared to forwards and centers; (ii) forwards engaged in more high-speed and high-intensity running; (iii) centers demonstrated higher averages in successful shots and rebounds; and (iv) physiological responses, particularly heart rate, were predominantly higher among centers. In conclusion, this review provides coaches with critical insights into position-specific physical and physiological demands in basketball. Notably, methodological inconsistencies across the studies reviewed were observed. Hence, establishing standardized assessment methodologies and creating a common framework for normalizing physical, physiological, technical, and tactical variables is crucial for enhancing research comparability and practical application.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"5-35"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121883/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199326","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":"Profiling the Countermovement Jump Characteristics of Basketball Players across Competitive Levels and Playing Positions.","authors":"Carlos Suárez-Balsera, Davide Ferioli, Elena Marín-Cascales, Vincenzo Rago, Konstantinos Spyrou, Antonio Martínez-Serrano, Debora Di Mauro, José Manuel Marín, Pedro E Alcaraz, Tomás T Freitas","doi":"10.5114/jhk/196138","DOIUrl":"10.5114/jhk/196138","url":null,"abstract":"<p><p>This study aimed to examine different force-time derived variables of the countermovement jump (CMJ) in adult, male basketball players of different competitive levels and playing positions. At the beginning of the pre-season, 78 players from two competitive levels (professional and semi-professional) completed a CMJ test on a force plate. Linear mixed models were used to compare a total of 21 metrics across competitive levels and playing positions. Professional players jumped significantly higher (p = 0.022) than semi-professionals. No differences were observed in the variables related to the eccentric phase. Four concentric phase variables (i.e., absolute peak force [p < 0.001], absolute and relative peak power [p < 0.001 and p = 0.037, respectively] and peak velocity [p = 0.036]) were superior in professional in comparison to semi-professional players. Regarding the playing position, centers presented significantly larger deceleration phase duration than guards (p = 0.042). Centers reported higher absolute eccentric peak force than guards (p = 0.013). In the concentric phase, centers reported larger concentric duration than forwards (p = 0.011) and guards (p = 0.002). Guards produced lower absolute peak force compared to centers (p = 0.004) and forwards (p = 0.025). Furthermore, centers were characterized by lower levels of relative peak force (p = 0.013), but higher levels of absolute peak power compared to guards (p = 0.003). In conclusion, jump height, and only four concentric-phase metrics were found to discriminate between competitive levels. Additionally, the eccentric deceleration phase duration, absolute eccentric peak force, concentric duration, absolute and relative peak force and absolute peak power discriminated between playing positions. Practitioners should conduct thorough CMJ analyses and consider these metrics from a performance and talent identification perspective.</p>","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"96 Spec","pages":"83-95"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12121892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199327","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}