Journal of Sports Medicine and Physical Fitness最新文献

{"title":"An intermittent recovery test for soccer players: a validation study.","authors":"Andrea Meloni, Roberto Codella, Tommaso Arrighi, Luca Festa, Giacomo Ceci, Giacomo Faraci, Gaia Manari, Danilo Manari, Luca Filipas","doi":"10.23736/S0022-4707.24.16105-1","DOIUrl":"10.23736/S0022-4707.24.16105-1","url":null,"abstract":"<p><strong>Background: </strong>Soccer is an intermittent team sport that demands high aerobic capacity. On field, soccer players' aerobic capacity, assessed through the maximal oxygen uptake (VO<inf>2</inf>max), is usually determined by an intermittent recovery test. The aim of this study was to obtain a construct validity of a new intermittent recovery test (IRT) with a fixed speed and a progressive decrement of rest period.</p><p><strong>Methods: </strong>Twenty-five male soccer players were recruited to perform an incremental continuous test (ICT) and the new IRT, to compare their physiological data. Fifteen male soccer players were involved to perform a test-retest of IRT to assess its reliability.</p><p><strong>Results: </strong>VE<inf>peak</inf>, absolute VO<inf>2</inf>max, relative VO<inf>2</inf>max and VCO<inf>2</inf>peak registered during ICT and IRT correlated strongly (Pearson's correlation coefficient ranges from 0.75 to 0.80, with very large as magnitude of effects and with P<0.001). IRT showed reliability from good to excellent regarding VE<inf>peak</inf>, absolute VO<inf>2</inf>max, relative VO<inf>2</inf>max, VCO<inf>2</inf>peak and covered distance (ICC values ranged from 0.82 to 0.95).</p><p><strong>Conclusions: </strong>These findings and its underlying physiological and muscular demands, suggest that IRT can be considered as a valid and reliable test to assess aerobic capacity in soccer players during the competitive period.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"341-346"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142120118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in throwing kinematics due to changes in run-up speed in javelin throwing.","authors":"Mizuki Makino, Koichi Nakayama, Yuka Ando, Kenji Tauchi","doi":"10.23736/S0022-4707.24.16332-3","DOIUrl":"10.23736/S0022-4707.24.16332-3","url":null,"abstract":"<p><strong>Background: </strong>In javelin throw training, although short run-up throwing is more frequently performed than full run-up throwing (throwing like a competition), it is unclear whether the throwing motion of the short run-up throwing is different from full run-up throwing. Therefore, the purpose of this study was to clarify the differences between the short and full run-up throwing in javelin throw.</p><p><strong>Methods: </strong>Twelve male javelin throwers were included in this study. The participants performed one-cross throwing (Cross), which involved throwing from a short run-up, and full run-up throwing (Run), which was similar to a competition. The coordinates of the reflective markers attached to the participant's body and javelin was recorded using an optical motion capture system. The analysis phase was from the time of last foot contact to the time of release. We calculated the kinematic variables related to javelin throwing performance and compared the Cross and Run.</p><p><strong>Results: </strong>The results showed significant differences in the joint angles of the left knee, trunk, and right shoulder between Cross and Run.</p><p><strong>Conclusions: </strong>The results indicate that different throwing motions occur in short run-up throwing compared to full run-up throwing.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"320-327"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of horizontally versus vertically loaded resistance exercises on performance and muscle architecture.","authors":"Sandro Bartolomei, Giuseppe Rosaci, Davide Latini, Federico Nigro","doi":"10.23736/S0022-4707.24.16218-4","DOIUrl":"10.23736/S0022-4707.24.16218-4","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to compare a training program based on horizontally (HT) versus vertically (VT) loaded exercises on performance and muscle architecture of the lower body muscles.</p><p><strong>Methods: </strong>Nineteen resistance trained individuals were randomly assigned to HT (N.=10; age: 25.9±4.2 y; body mass: 72.7±11.4 kg; height: 174.0±6.0 cm) or VT group (N.=9; age: 26.9±4.4 y; body mass: 76.2±10.8 kg; height: 174.2.0±5.8 cm). Both 6-week training programs included 4 training sessions per week and were equated for the total number of repetitions. One repetition maximum (1RM) was assessed for squat and hip thrust, together with vertical and horizontal jumps and sprint. Muscle thickness (MT) and echo intensity (EI) of vastus lateralis, vastus medialis and gluteus were also evaluated pre- and post-training period.</p><p><strong>Results: </strong>A significantly greater increase in 1RM hip thrust was detected in HT (+17.9%; P=0.004) while greater increases in 1RM squat were found in VT (+10.5%; P=0.007). A greater increase (P=0.009) in vastus medialis MT was detected in VT (4.1%) compared to HT (-7.9%). Similar increases in MT of gluteus were registered in both groups (P<0.05). A greater improvement in standing long jump (P=0.004) was detected in HT (+7.6%) compared to VT (+1.6%), while both groups significantly improved vertical jump performance. Combining both groups, strong correlations were detected between gluteus EI and 20-m sprint (r=0.79; P<0.001).</p><p><strong>Conclusions: </strong>Results indicate that HT was more effective than VT for horizontal jumps while both HT and VT were equally effective on vertical jumps. Both HT and VT promoted similar changes in muscle architecture of the gluteus, but not of the vastus medialis.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"312-319"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the knowledge and attitudes of semi-professional netball players in the Western Cape district regarding netball injuries: a cross-sectional study.","authors":"Jaron Ras, Roné Carstens, Shevonne Hoffman, Nashitah Africa, Lloyd Leach","doi":"10.23736/S0022-4707.24.16142-7","DOIUrl":"10.23736/S0022-4707.24.16142-7","url":null,"abstract":"<p><strong>Background: </strong>Netball, with its dynamic movements, poses a high injury risk, notably to the ankles and knees. This study examined the injury knowledge and attitudes of semi-professional netball players in the Western Cape, South Africa.</p><p><strong>Methods: </strong>In this study 117 semi-professional female netball players from eight clubs in the Western Cape district were conveniently sampled. A self-administered researcher-generated questionnaire collected data on the players' sociodemographic characteristics, as well as their knowledge and attitudes regarding netball injuries. Independent samples t-test, Pearson's correlation coefficient, and the χ² tests were employed for data analyses.</p><p><strong>Results: </strong>Results showed that most players (62.4%) had good knowledge of injury prevention and recovery, though a minority held negative attitudes (39.0% and 29.0%, respectively). Those with over three years of experience demonstrated superior knowledge (85.7%) and more positive attitudes (61.9% and 71.4%). Conversely, a minority (37.6%) exhibited poor knowledge, while a majority (61.00%) displayed positive attitudes. Furthermore, a moderate positive correlation (r=0.552; P<0.001) was observed between overall knowledge and attitudes towards injury prevention and recovery.</p><p><strong>Conclusions: </strong>While most semi-professional netball players possess adequate injury knowledge, those with longer experience show more positive attitudes. Establishing educational programs emphasizing injury prevention and recovery could benefit players, especially those starting later in life, promoting both knowledge and positive attitudes towards injury management.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"400-411"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incidence of injury among male Varsity Cup Young Guns rugby players in South Africa.","authors":"Renaldo Solomons, Raven Schippers, Lloyd Leach","doi":"10.23736/S0022-4707.24.15863-X","DOIUrl":"10.23736/S0022-4707.24.15863-X","url":null,"abstract":"<p><strong>Background: </strong>The physical nature of the sport of rugby results in a high incidence of injury, even in university rugby, compared to other contact sport codes. Rugby Union lacks injury data focusing on university student-athletes, specifically in South Africa. The aim of the study was to determine the incidence of injury among male rugby players participating in the Varsity Cup Young Guns national rugby tournament.</p><p><strong>Methods: </strong>The study used a quantitative, cross-sectional, and correlational research design. A total of 252 rugby players, males aged 18 to 20 years, who played for their university rugby team in the 2022 Varsity Cup Young Guns national tournament were conveniently recruited to determine the incidence of overall, match, and training injuries (number of injuries/1000 hours) for the 2022 tournament.</p><p><strong>Results: </strong>The overall injury incidence for all players was 9.5 injuries/1000 player-hours. The injury incidence for all players during matches was 136.5 injuries/1000 match-hours, whereas during training it was 0.6 injuries/1000 training-hours. The injury incidence was greater for backs than forwards (150.6 injuries/1000 match-hours vs. 124.1 injuries/1000 match-hours, respectively). The lower limb was the most commonly injured anatomical site with 36.6% (95% CI: 27.7-48.3%), while the common types of injuries were the joints (41.6%, 95% CI: 29.9-49.9%) and muscles (28.7%, 95% CI: 20.8-38.0%). A statistically significant association was found between the playing position and the phase of play in which injury occurred (χ²<inf>(1)</inf>=160.2; P=0.021).</p><p><strong>Conclusions: </strong>This study reported a high injury incidence, especially during matches, in the Varsity Cup Young Guns tournament. It is recommended that prospective, incidence-based studies be used to precisely determine the incidence, nature, severity and mechanisms of injury. An injury surveillance system should be implemented, specifically within Varsity Cup rugby to inform, support, and improve current injury prevention strategies.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"412-419"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monkeypox-induced myocarditis in athletes: a call for further research and raising awareness.","authors":"Adda Oudjedi","doi":"10.23736/S0022-4707.24.16699-6","DOIUrl":"10.23736/S0022-4707.24.16699-6","url":null,"abstract":"","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"464"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delayed effects of heavy resistance or ballistic priming on sprint and agility in elite U19 football.","authors":"René B Jørgensen, Lars T Pedersen, Torben Nielsen, Heidi K Egebæk, Rasmus Jensen","doi":"10.23736/S0022-4707.25.16223-3","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16223-3","url":null,"abstract":"<p><strong>Background: </strong>In elite football, optimization of physical performance increases athlete performance. Sprint and change of directional performance can be improved by previously conducting a priming protocol. However, it is unknown if this priming-induced performance enhancement is long-lasting.</p><p><strong>Methods: </strong>Eighteen under 19 years old elite football players (mean ± standard deviation [SD] age: 17.8±0.8 years, height: 181±8 cm, body mass: 72±8 kg) with 34±6 months of strength training experience were tested in 30 m sprint and 505 agility without previous exercise (baseline) or 20 hours following a priming protocol consisting of heavy resistance (heavy) or ballistic (ballistic) training. Baseline testing was performed between 3 and 5pm and the effects of priming were tested between 10 and 11 am the day after training. Heavy consisted of 3*2 repetitions of 85% of 1RM in the back squat, and ballistic consisted of 3*5 repetitions of 40% of 1RM in the specialized jump squat.</p><p><strong>Results: </strong>Compared to baseline, sprint was improved after 10 m with heavy and ballistic by 0.01 and 0.03 s, respectively (P<0.05), whereas only ballistic improved sprint after 5 m (0.03 s, P<0.05). There were no differences after 30 m sprint or in the agility test.</p><p><strong>Conclusions: </strong>Acceleration (i.e., 5 m sprint) is improved 20 hours after performing heavy resistance or ballistic priming exercise. Since these priming exercises can be performed on the previous day, coaches should consider incorporating these in their regular training and match plans.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of full stroke versus legs only maximal effort swimming and different breathing pattern on respiratory muscle fatigue.","authors":"Mitch Lomax, Anton Ušaj, Jernej Kapus","doi":"10.23736/S0022-4707.25.16496-7","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16496-7","url":null,"abstract":"<p><strong>Background: </strong>This study investigated the impact of different breathing patterns and stroke variations on inspiratory and expiratory muscle fatigue (IMF and EMF) in front crawl swimming.</p><p><strong>Methods: </strong>Twelve club-level swimmers (3 females) performed four maximal effort 200-m front crawl swims in a random order: breathing every two strokes (B2), every four strokes (B4), ad libitum via a snorkel (S), and legs only with a kickboard (K).</p><p><strong>Results: </strong>Postswim maximal inspiratory mouth pressure decreased in B2 (34±26%), B4 (41±23%), S (26±16%), and K (13±15%). The only significant difference in IMF was between B4 and K. Significant EMF was observed only in S (12±11%) and K (13±15%). IMF was greater than EMF in B2 and B4. Swim time was slower in K (217 (199-231) s) compared to B2 (139 (136-156) s), B4 (142 (138-155) s), and S (142 (138-155) s), but similar among B2, B4, and S. Postswim, pH and HCO<inf>3</inf>^- levels decreased, while blood lactate levels increased in all trials. Full stroke and legs-only front crawl swimming caused IMF, regardless of breathing restrictions. However, IMF was lower when breathing was unrestricted, and the upper body was immobilized compared to full stroke and highly restricted breathing. EMF was not observed when breathing was restricted and tended to be lower than IMF.</p><p><strong>Conclusions: </strong>These findings suggest that the mechanisms of IMF and EMF differ during front crawl swimming.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of clapping movement with groove rhythm on executive function: focusing on audiomotor entrainment.","authors":"Takemune Fukuie, Kazuya Suwabe, Satoshi Kawase, Koshiro Inoue, Akihiko Yamaguchi, Hideaki Soya","doi":"10.23736/S0022-4707.24.16236-6","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16236-6","url":null,"abstract":"<p><strong>Background: </strong>Groove rhythm, known for inducing the desire to move to music, could enhance the cognitive benefits of exercise, especially in individuals familiar with groove. Audiomotor entrainment and concurrent positive affect are considered key modulating factors in the effects of exercise set to groove rhythm. Clapping movement could facilitate audiomotor entrainment, which may benefit positive affect and cognition. This study aimed to examine the effect of clapping with groove rhythm (CL) on audiomotor entrainment, positive affect, and executive function (EF).</p><p><strong>Methods: </strong>Thirty-three healthy university students participated in two experiments. In Experiment 1, psychological responses to 2-minute exercise were assessed across two conditions: CL condition and non-clapping and arm rotation movement with groove rhythm (NC condition). In Experiment 2, participants performed 3-minute CL and NC on separate days, and the color-ward Stroop test and psychological measures were evaluated.</p><p><strong>Results: </strong>CL increased subjective audiomotor entrainment and positive affect more than NC. However, no effect on EF was observed. Correlation analysis revealed higher subjective audiomotor entrainment and positive affect in the CL condition were associated with EF improvement.</p><p><strong>Conclusions: </strong>Clapping is a preferable exercise type for subjective audiomotor entrainment and positive affect, but the effect on EF varied among individuals. Subjective audiomotor entrainment and positive affect could modulate the effect of CL on EF.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing workplace wellness: the impact of multidisciplinary interventions on employee health and productivity.","authors":"Chiara Noviello, Giacomo Riformato, Michele M Palattella, Sabrina Lattanzio, Eustachio Cuscianna, Silvio Tafuri","doi":"10.23736/S0022-4707.25.16125-2","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16125-2","url":null,"abstract":"<p><strong>Background: </strong>Healthy lifestyles play an important role in speaking about the onset of chronic diseases; sedentary work and bad habits can worsen workers' health, eventually affecting productivity. Some companies have increasingly invested in workplace wellness programs to improve workers' health and decrease health care costs. This study describes a pilot experience on the advantages of the introduction wellness interventions in workplace .</p><p><strong>Methods: </strong>From April 2022 to April 2023, 70 employees in multiple working roles have been selected (on volunteer base) for a training protocol. A questionnaire was used, analyzing the 5 aspects before and after training program: kinesiology, physiotherapy, psychology, nutrition, science of happiness.</p><p><strong>Results: </strong>Participants who did not carry out intense physical activity on a weekly basis drastically decreased from 56% to 34.5%. No cases with persistent pain, compared to 10.4% previously recorded. Participants eating, more than once a day, packaged industrial foods were eliminated. Participants in \"good mood\" increased from 11.9% to 31% and who feels positive emotions increased from 35.8% to 55.2%.</p><p><strong>Conclusions: </strong>Results show the benefit of the multidisciplinary approach and the strong impact between the training days and clear improvements in both aspects of working life and personal aspects. A strategy aiming and increasing the stakeholder's awareness in changing behavior and promoting the culture of prevention is recommended. It is possible to hope to export and experiment with this method in more extensive corporate contexts, in order to make it applicable on a larger scale.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}