Journal of Sports Medicine and Physical Fitness最新文献

{"title":"Influence of various types of muscle contractions on subsequent bench press volume.","authors":"Mohammad Izadi, Guglielmo Pillitteri, Ewan Thomas, Giuseppe Battaglia, Antonino Bianco, Marianna Bellafiore","doi":"10.23736/S0022-4707.25.16343-3","DOIUrl":"10.23736/S0022-4707.25.16343-3","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to examine the effect of different conditioning activities (concentric-only, isometric, eccentric-only, and eccentric-concentric) on the volume of bench press exercises.</p><p><strong>Methods: </strong>Ten male collegiate athletes performed three sets of bench press exercises at 75% of their one-repetition maximum, with a 4-minute rest between sets, until they reached concentric failure. This was done either after one of the four types of contraction activations (concentric-only, isometric, eccentric-only, and eccentric-concentric) or without any conditioning activity, with the order being counterbalanced and randomized across different days. A two-way repeated measures ANOVA was used to assess differences in the number of repetitions, time under tension, and total work across conditions.</p><p><strong>Results: </strong>The results showed that concentric-only contractions significantly increased the number of repetitions and time under tension compared to the control. Moreover, concentric-only contractions resulted in more repetitions and total work than eccentric-concentric contractions. Additionally, the time under tension was longer for concentric-only contractions than for isometric contractions.</p><p><strong>Conclusions: </strong>These findings indicate that concentric-only conditioning activities may improve the volume of subsequent bench press exercises.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"735-739"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649483","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 novelty of Italian Sport Cardiology Guidelines in the international context.","authors":"Giampiero Patrizi","doi":"10.23736/S0022-4707.25.16992-2","DOIUrl":"10.23736/S0022-4707.25.16992-2","url":null,"abstract":"","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"727-728"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143408425","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":"A standard operating procedure proposal for the warm-up of sit and reach test in young adults.","authors":"Luca Petrigna, Bruno Trovato, Federico Roggio, Marta Zanghì, Martina Sortino, Alessandra Amato, Giuseppe Musumeci","doi":"10.23736/S0022-4707.25.16057-X","DOIUrl":"10.23736/S0022-4707.25.16057-X","url":null,"abstract":"<p><strong>Background: </strong>The sit and reach test (SRT) is an evaluation of muscle extensibility. Most studies adopting the SRT do not provide information about the warm-up. Whole body vibration (WBV) is a training that has positive outcomes also on flexibility performance. It was decided to evaluate how warm-up, also with WBV, influences flexibility and to propose a standard operating procedure that adopts this instrument.</p><p><strong>Methods: </strong>Ninety participants performed the SRT three times: half performed it with WBV to maximize the performance; half underwent a passive rest between the SRT. Data were analyzed with the Friedman Test and the Pairwise Comparisons Durbin-Conover.</p><p><strong>Results: </strong>Differences between SRT repetitions were reduced after two trials. SRT1 vs. SRT2 presented a difference of 1.1 cm (P=0.063), and SRT2 and SRT3 had a difference of 1 cm (P=0.453). The SRT results with WBV provided a valuable difference between the first and the second trial of 3.1 cm (P<0.001) while between the second and the third was 0.3 cm (P=0.609). No statistical differences were between SRT3 with and without WBV (P=0.384).</p><p><strong>Conclusions: </strong>There was an acute positive effect of WBV on flexibility. The findings also suggest that before the SRT, participants had to perform a standardized warm-up.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"729-734"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649467","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":"Training with electrical muscle stimulation: a novel method to improve Body Mass Index, lipid profile, growth hormone, and cortisol in overweight subjects.","authors":"Elnaz Riyahi, Jalil Reisi, Sayyed M Marandi, Milad Abdollahi","doi":"10.23736/S0022-4707.25.16188-4","DOIUrl":"10.23736/S0022-4707.25.16188-4","url":null,"abstract":"<p><strong>Background: </strong>Skeletal muscles constitute approximately 40% of our body mass, performing crucial roles in mobility, metabolism, and heat generation. This study delves into the impact of whole body-electrical muscle stimulation (WB-EMS) training on muscle growth and anabolic factors in individuals grappling with excess weight. A cohort of 30 participants was randomly assigned to an EMS group and a control group.</p><p><strong>Methods: </strong>The EMS group adhered to a training regimen involving a whole-body EMS device engineered to concurrently and independently stimulate various body regions. This innovative apparatus administered a bipolar electric current with a pulse frequency of 85 Hz, a pulse width spanning 350 µs, and a rectangular waveform featuring a 0.4-second ramp. Stimulation patterns oscillated between 6 seconds of activation and 4 seconds of rest. The device precisely targeted the legs, anterior and posterior thighs, arms, buttocks, abdomen, chest, and lower and upper back while covering a substantial area of 2600 cm². The training program included 24 WB-EMS sessions conducted over 8 weeks. There were 3 training sessions per week, each lasting 20 minutes. A dedicated rest day was scheduled between sessions to facilitate recovery and adaptation.</p><p><strong>Results: </strong>The results showed that exercise training significantly reduced Body Mass Index (BMI) (P<0.0001) and significantly improved cholesterol levels (P<0.0016), including reductions in low-density lipoprotein (LDL) (P<0.0146) and very low-density lipoprotein (VLDL) (P<0.0003). Along with an increase in high-density lipoprotein (HDL) (P<0.0238). In addition, the study showed an increase in growth hormone levels (P<0.0001) along with a decrease in cortisol levels (P<0.0008) and transforming growth factor-β (TGF-β) (P<0.0187).</p><p><strong>Conclusions: </strong>Consequently, EMS training emerges as a time-efficient and effective alternative to conventional exercise routines, enhancing skeletal muscle function.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"811-818"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649538","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":"Acute effects of handheld percussive massage therapy on various posterior shoulder soft tissue areas in healthy young males.","authors":"Takaki Imai, Takashi Nagamatsu, Yushin Yoshizato, Kodai Miyara, Megumi Sumizono, Masatoshi Nakamura","doi":"10.23736/S0022-4707.25.16101-X","DOIUrl":"10.23736/S0022-4707.25.16101-X","url":null,"abstract":"<p><strong>Background: </strong>Interventions using vibration stimulation can increase the range of motion (ROM) without compromising muscle strength. Handheld percussive massage directly stimulates the focal area. Therefore, its effectiveness may be affected depending on the areas of stimulation. Thus, this study aimed to compare the effects of handheld percussive massage to different stimulation areas on shoulder internal rotation ROM and shoulder external rotation muscle strength and torque.</p><p><strong>Methods: </strong>This crossover study included 15 healthy male volunteers (20.6±1.5 years). A 5-min percussive massage was applied to three posterior shoulder areas: the muscle belly, proximal muscle-tendon junction, and distal muscle-tendon junction. Internal rotation ROM (vertebral level and abduction position) and external rotation muscle strength (isometric and concentric) were measured before and immediately after the intervention and compared.</p><p><strong>Results: </strong>Internal rotation ROM (vertebral level and abduction position) showed a time effect (P<0.05). No interaction or between-condition effects were observed. Post hoc testing showed a change in internal rotation ROM (vertebral level and abduction position) after intervention at the three stimulation areas (P<0.05). Muscular strength did not show any interaction, time, or between-condition effects.</p><p><strong>Conclusions: </strong>Handheld percussive massage therapy to various posterior shoulder soft tissue areas increased the internal rotation ROM without decreasing the external rotation maximum voluntary contraction torque.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"778-786"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649469","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":"Y-Balance Test performance for predicting plantar fasciitis in male recreational marathon runners: a prospective cohort study.","authors":"Daxin Li, Donghui Tang, Yangli Liu, Yangya Feng, Cheng Peng","doi":"10.23736/S0022-4707.25.16562-6","DOIUrl":"10.23736/S0022-4707.25.16562-6","url":null,"abstract":"<p><strong>Background: </strong>Plantar fasciitis (PF) is the third most common type of running-related overuse injury. The purpose of this study was to investigate whether the performance of the Y-balance test (YBT) could predict PF development in male recreational marathon runners.</p><p><strong>Methods: </strong>One hundred and seventy-two male recreational marathon runners underwent the YBT and were then tracked for PF development during a 3-month period. Twelve participants developed PF. Their baseline data were compared to those of runners who remained uninjured.</p><p><strong>Results: </strong>During the 3-month follow-up, 7% of the marathon runners sustained PF. The posterolateral interlimb asymmetry observed during the YBT (YBT-PL) was significantly greater in injured runners than in uninjured runners (OR=1.183; 95% CI: 1.050-1.333; P=0.006) and was significantly correlated with PF development. Moreover, the area under the receiver operating characteristic (ROC) curves of the YBT-PL interlimb asymmetry was 0.779 (95% CI: 0.646-0.913; P=0.001).</p><p><strong>Conclusions: </strong>YBT-PL interlimb asymmetry was associated with a greater likelihood of developing PF, and YBT-PL interlimb asymmetry greater than 4.5 cm was a strong risk factor for the development of PF in male recreational marathon runners. For every 1-cm increase in the interlimb asymmetry of YBT-PL, the risk of developing PF increased 1.183-fold. Practitioners should consider improving interlimb asymmetry as an injury prevention and treatment strategy.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"804-810"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625108","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":"Handgrip strength and asymmetry are associated with lower-body muscle power in older women.","authors":"Ty B Palmer","doi":"10.23736/S0022-4707.25.16421-9","DOIUrl":"10.23736/S0022-4707.25.16421-9","url":null,"abstract":"<p><strong>Background: </strong>The difference in strength between hands, as characterized by handgrip asymmetry, has been shown to be significantly associated with several adverse health outcomes. Handgrip strength asymmetry and its relationship with lower-body muscle power in older adults is not well understood. This study aimed to determine if handgrip strength and asymmetry are associated with lower-body muscle power in older women.</p><p><strong>Methods: </strong>Twenty active older women (67±5 years) participated in this study. Handgrip contractions were performed with the dominant and non-dominant hand to assess strength measurements of peak force, peak rate of force development (RFD), and RFD at 0-100 (RFD100) and 0-200 (RFD200) ms. Asymmetry ratios were used to determine the severity of differences in handgrip peak force and RFD measurements between the dominant and non-dominant hand. Lower-body peak muscle power was assessed from a vertical jump test.</p><p><strong>Results: </strong>All handgrip peak force and RFD measurements for the dominant and non-dominant hands were significantly associated with vertical jump peak power (r=0.445-0.547, P=0.013-0.049). Significant correlations were observed between vertical jump peak power and handgrip asymmetry ratios for peak RFD (r=-0.460, P=0.041) and RFD100 (r=-0.591, P=0.006). Multiple regression analysis indicated that handgrip RFD100 asymmetry ratio and RFD200 for the dominant hand were significant predictors of vertical jump peak power, and together, explained 53.9% of its variance.</p><p><strong>Conclusions: </strong>These findings suggest that handgrip RFD and asymmetry may be effective measurements at predicting lower-body muscle power in older women.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"740-748"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649472","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":"Sclerostin and bone mass in pubertal girls: different associations between athletes and non-athletes.","authors":"Jaak Jürimäe, Liina Remmel, Anna-Liisa Tamm, Vallo Tillmann","doi":"10.23736/S0022-4707.25.16293-2","DOIUrl":"10.23736/S0022-4707.25.16293-2","url":null,"abstract":"<p><strong>Background: </strong>Rhythmic gymnasts (RG) start their heavy trainings already at early age and despite of low body fat mass, their bone parameters are higher than in untrained controls (UC). The specific role of sclerostin and preadipocyte factor-1 (Pref-1), which are the negative regulators of bone mass by inhibiting bone formation, is not well understood in puberty. The aims of the study were to compare sclerostin and Pref-1 between RG and UC, and to evaluate relationships of sclerostin and Pref-1 with bone mass.</p><p><strong>Methods: </strong>Study involved 32 RG and 32 UC girls aged 10-12 years. Bone mass and body composition were measured by dual-energy X-ray absorptiometry, and plasma sclerostin and Pref-1 concentrations were assessed from fasting blood samples.</p><p><strong>Results: </strong>Sclerostin was higher (P<0.0001) in RG (24.2±8.8 pmol/L) compared with UC (14.7±10.0 pmol/L¹), while Pref-1 was similar between the groups. In RG, sclerostin was positively correlated with lumbar spine (LS) (r=0.44; P=0.012) and femoral neck (FN) (r=0.37; P=0.039) bone mineral content (BMC), whereas in UC, sclerostin was inversely associated with LS (r=-0.37; P=0.039) and FN (r=-0.35; P=0.048) BMC. In RG, sclerostin remained positively correlated with LS BMC independent of confounding factors (r=0.60; P=0.001). Pref-1 was not correlated with any bone mass values in both groups.</p><p><strong>Conclusions: </strong>Early pubertal RG girls have higher plasma sclerostin levels compared UC. Sclerostin has differential associations with bone mass in RG compared to UC.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"771-777"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649537","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":"Italian guidelines for competitive sport eligibility (COCIS): what are the new indications in the updated 2023 version for the evaluation of athletes with arrhythmias?","authors":"Luigi Sciarra, Antonio Scarà, Alessandro Biffi, Silvia Castelletti, Domenico Corrado, Antonio Dello Russo, Franco Giada, Giuseppe Inama, Loira Leoni, Viviana Maestrini, Zefferino Palamà, Peter Schwartz, Andrea Spampinato, Paolo Zeppilli, Alessandro Zorzi, Pietro Delise","doi":"10.23736/S0022-4707.25.16910-7","DOIUrl":"10.23736/S0022-4707.25.16910-7","url":null,"abstract":"<p><p>The COCIS 2023 guidelines represent the latest update on competitive sports eligibility for athletes with heart disease, developed by the Italian Society of Sports Cardiology and associated medical societies. These updated guidelines reflect advancements in cardiology and sports medicine and introduce clear class of recommendations and levels of evidence for assessing athletes with heart disease. This document focuses on the differences between the 2023 and 2017 versions, particularly regarding athletes with arrhythmias. The guidelines integrate new scientific evidence, including modifications to criteria for specific arrhythmic conditions like Wolf-Parkinson-White (WPW) Syndrome, Brugada Syndrome, long QT syndrome (LQTS), and premature ventricular beats (PVBs). Updates on the return-to-play timing after successful catheter ablation are also included. Key updates include the revised arrhythmic risk thresholds for WPW syndrome; these guidelines also expand recommendations for asymptomatic pre-excitation cases. In Brugada Syndrome, eligibility remains dependent on the presence of malignant arrhythmias and genetic risk factors, with scoring systems to aid risk stratification. For LQTS, eligibility is reconsidered for asymptomatic individuals with a negative phenotype and a positive genotype, with beta-blocker use. Additionally, the management of PVBs is refined, with new criteria for further investigation and risk assessment. COCIS 2023 introduces a more nuanced, evidence-based approach to the eligibility of athletes with arrhythmias. The guidelines provide clinicians with detailed recommendations for managing a variety of arrhythmic conditions. As scientific research advances, these guidelines will continue to evolve, ensuring safe athletic participation for individuals with cardiovascular conditions.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"826-833"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143674118","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":"Optimal wake-up time for short-term peak performance in the morning.","authors":"Akiko Honda, Hidenori Kondo, Taiga Matsuda","doi":"10.23736/S0022-4707.25.16471-2","DOIUrl":"10.23736/S0022-4707.25.16471-2","url":null,"abstract":"<p><strong>Background: </strong>Sports performance is low in the morning compared with those later in the day, and taking steps to improve performance in the morning is crucial. The awakening timing is important; however, few studies have focused on this issue. The aim of this study was to clarify the optimal wake-up time for short-term peak performance in the morning.</p><p><strong>Methods: </strong>Fourteen male college baseball players completed three performance tests changed with the elapsed time from awakening (ET); 1, 2.5, and 4 h (1H, 2.5H, and 4H, wake-up times were 09:00, 07:30, and 06:00, respectively). Performance tests started at 10:00. Flexibility, reaction time, isometric muscle strength, vertical jump, and agility were measured.</p><p><strong>Results: </strong>A significant main effect of ET was observed solely in agility (P<0.05); agility at 4H tended to be greater than at 1H, though this difference was not significant (P=0.059). However, the ET to peak performance varied depending on the individual or test parameters. Many participants showed peak performance at 2.5H or 4H, whereas few participants achieved the peak at 1H in multiple parameters.</p><p><strong>Conclusions: </strong>The impact of ET might be minimal for short and momentary performances. Although our data did not indicate the optimal wake-up time, setting the wake-up time based on individual pattern was recommended. However, this time should be preferably at least 2.5h or earlier before sports activity starts in the morning.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"756-761"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649488","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}