Journal of Sports Medicine and Physical Fitness最新文献

{"title":"Initial and evolutionary profile of adverse responders to an intensive weight loss intervention: the RESOLVE Study.","authors":"Mélina Bailly, Laurie Isacco, Frédéric Dutheil, Daniel Courteix, Bruno Lesourd, Robert Chapier, Philippe Obert, Guillaume Walther, Réha Bagheri, Agnes Vinet, Lore Metz, Julien Verney, Gael Ennequin, Vicky Drapeau, Bruno Pereira, David Thivel, Angelo Tremblay","doi":"10.23736/S0022-4707.25.16341-X","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16341-X","url":null,"abstract":"<p><strong>Background: </strong>There is a need to better identify adverse responders to weight-loss interventions. The aim of this study was to: 1) identify potential predictive factors of adverse responders to weight loss; and 2) follow their long-term evolution.</p><p><strong>Methods: </strong>One-hundred participants (56 females) with overweight (59.5±4.9 years) followed a 3-week intervention combining physical activity and diet followed by one-year monitoring, and were divided into three subgroups: 1) group A (N.=13) - \"regainers\" (weight regain during follow-up >100% of initial loss); 2) group B (N.=25) - \"moderate regainers\" (weight regain: 0-100%); and 3) group C (N.=46) - \"weight relosers\" (weight regain <0%). Body composition, food consumption, inflammatory and metabolic markers were assessed during the intervention and follow-up.</p><p><strong>Results: </strong>Baseline energy intake was lower in group A(1518±361kcal/day) vs. group B (1929±451kcal/day) (P=0.013) and C(1882±572kcal/day) (P=0.024). Group A initially presented a healthier metabolic profile and the total score of compliance (diet + physical activity) was lower in group A during follow-up (group A:38.3% vs. B:49.2%(P=0.007) and C:72.1% (P<0.001). Ghrelin levels tend to decrease and peptide YY (PYY) to increase during follow-up in groups B and C while blunted responses were obtained in A.</p><p><strong>Conclusions: </strong>Adverse responders might be characterized by a less unhealthy metabolic profile at baseline but also by less favorable changes in their satiety-regulating hormones during the one-year follow-up.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145000817","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":"Definition of running-related injury in recreational runners: achieving consensus among runners using the e-Delphi Method.","authors":"Jean-Baptiste Colomb, Léa Abi Jaoude, Elio Raad, Joachim VAN Cant","doi":"10.23736/S0022-4707.25.16729-7","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16729-7","url":null,"abstract":"<p><strong>Background: </strong>Definitions of running-related injuries (RRI) in the literature are often determined by experts rather than by runners themselves. Incorporating the perspective of runners can provide valuable insights, particularly in the context of self-reported injury surveillance. This study aimed to develop a consensus definition of RRI by integrating the perspectives of recreational runners, acknowledging them as experts in their own injury experiences.</p><p><strong>Methods: </strong>An e-Delphi method was employed to gather and refine the opinions of recreational runners. In the first two rounds, participants selected and rated terms relevant to the definition off RRI. The third and final round focused on achieving consensus by asking participants to rate their level of agreement with a definition developed by the authors based on their own responses in the previous two rounds. Consensus was defined as ≥75% agreement.</p><p><strong>Results: </strong>Out of 163 respondents, 91 (55.8%) completed the first questionnaire and were included in the study. Of these, 67 (73.6%) completed the second questionnaire and 60 (65.9%) participated in the final validation round. A consensual definition was reached with 90% agreement: \"Running-related pain, of musculotendinous and/or osteoarticular origin, localized to the lower limbs or pelvis and resulting in restriction (in speed, volume, time, distance) or cessation of running (training, competition) lasting at least 5 days or three sessions.\"</p><p><strong>Conclusions: </strong>This consensual definition of RRI, developed from the perspectives of recreational runners, specifically addresses a gap in the literature regarding their experiential understanding of injury. It may be appropriate for self-report contexts in this population, offering a practical framework for future research and for surveillance of self-reported running-related injuries.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145000855","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 high-intensity low-volume vs. low-intensity high-volume plyometric jump training on athletic performance in taekwondo athletes: randomized trial.","authors":"Chan-Ho Park, Moo-Sung Kim, Jae-Kyun Ryu, Geon-Tak Kim, Hyun-Chul Jung","doi":"10.23736/S0022-4707.25.16696-6","DOIUrl":"https://doi.org/10.23736/S0022-4707.25.16696-6","url":null,"abstract":"<p><strong>Background: </strong>This study aims to determine the effects of high-intensity low-volume (HILV) versus low-intensity high-volume (LIHV) plyometric jump training on athletic performance in Taekwondo athletes.</p><p><strong>Methods: </strong>Seventeen Taekwondo athletes (age: 19.35±1.31 yrs, height: 165.34±6.70 cm, weight: 60.17±8.31 kg, BMI: 21.92±1.81 kg·m^-2) were randomly assigned to either a HILV group (N.=8) or a LIHV group (N.=9). Participants completed plyometric jump training twice a week for 6 weeks, a total of 12 sessions. The training intensity and volume were set based on the Intensity Factor (IF) calculated from the ground reaction force, and the number of ground contacts, respectively. Athletic performance tests included countermovement jump (CMJ), drop jump (DJ), agility t-test, and 1RM leg press. The reactive strength index (RSI) was calculated from the height and the ground contact time of the DJ using a force plate.</p><p><strong>Results: </strong>The results showed significant interaction effects for CMJ (P=0.038) and DJ (P=0.020). In the HILV group, both CMJ (P<0.001) and DJ (P=0.017) increased significantly. The LIHV group also demonstrated significant improvement in CMJ (P<0.001), while no significant changes were observed in DJ (P=0.072). For RSI (P=0.134), the t-test (P=0.443), and 1RM leg press (P=0.746), no interaction effects were observed, with only main effects over time being noted.</p><p><strong>Conclusions: </strong>This study shows that six weeks of plyometric jump training improved jump ability, RSI, agility, and strength in Taekwondo athletes. HILV training was more effective than LIHV training in enhancing jump ability, highlighting the greater importance of intensity over volume in jump performance improvement.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145000874","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 effect of the whole-body isometric resistance training program on muscle strengths, brain derived neurotrophic factor, and quality of life in the community-dwelling middle-aged and older adults.","authors":"Chia-Ying Weng, Cheng-Shiun He, Hsin-Chin Chen, Tin-Kwang Lin, Soun-Cheng Wang, Shulan Hsieh, Ming-Nan Lin, Bo-Cheng Hsu","doi":"10.23736/S0022-4707.25.16501-8","DOIUrl":"10.23736/S0022-4707.25.16501-8","url":null,"abstract":"<p><strong>Background: </strong>The isometric form has been recommended as an effective alternative for resistance training in the middle-aged and older adults; however, the effect of the whole-body isometric resistance training (WB-IRT) remained unknown. The aim of the present study was to examine the effect of the WB-IRT on muscle strengths, brain derived neurotrophic factor (BDNF), and quality of life (QoL) in the community-dwelling middle-aged and older adults.</p><p><strong>Methods: </strong>Thirty-five community-dwelling middle-aged and older adults were randomly assigned to 12 weeks of WB-IRT (28 participants, 62.18±8.87) or control group (seven participants, 59.86±6.31). Isokinetic muscle strength was assessed by Biodex isokinetic testing. Blood samples were collected for plasma BDNF assays. WHOQOL-BREF questionnaire was used to assess their QoL. All measurements were collected at baseline and at least one month after this WB-IRT program.</p><p><strong>Results: </strong>There was significant interaction of group and time in plasma BDNF concentrations (F<inf>(1, 29)</inf>=5.533, P=0.026, η<inf>p</inf>²=0.160) and QoL (F<inf>(1, 29)</inf>=7.313, P=0.011, η²=0.201). For the between-group differences, the maximum peak torque of the knee extension and flexion in WB-IRT group instead of control group were significantly higher in the post-training than in the pre-training (P<0.05). Plasma BDNF concentrations was significantly elevated from pre-training to post-training in WB-IRT group (P<0.001), rather than control group. QoL was significantly decreased from pre-training to post-training in control group (P=0.038). Furthermore, hierarchical regression analyses showed the change of plasma BDNF concentrations could significantly predict post-training QoL in the community-dwelling middle-aged and older adults (β=0.520, P=0.003).</p><p><strong>Conclusions: </strong>Our results showed that the effect of this WB-IRT program was able to enhance muscle strengths, increase plasma BDNF concentrations, and improve QoL in the middle-aged and older adults. These are possibly alarming in the change of plasma BDNF concentrations, thereby associating QoL. This study recommends that the WB-IRT program is effective in enhancing both physical and psychosocial wellbeing among middle-aged and older adults. Further research is warranted to compare various modalities of resistance training and to evaluate the sustainability of its effects on physical and psychosocial well-being.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1138-1149"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144608651","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":"Ankle laxity and instability in collegiate swimmers.","authors":"Connie Hsu, Jason Schon, Timothy Genovese, Kelly McINNIS","doi":"10.23736/S0022-4707.25.16570-5","DOIUrl":"10.23736/S0022-4707.25.16570-5","url":null,"abstract":"<p><strong>Background: </strong>Ankle flexibility is important in maximizing a swimmer's kicking speed. The effects of increased ankle flexibility in swimmers has not been documented in the literature. The goal of this study is to evaluate ankle laxity, flexibility, and instability in college swimmers compared to control runners.</p><p><strong>Methods: </strong>This is an observational, cross-sectional study conducted on collegiate athletes. Participants included 41 collegiate Division I volunteer swimmers and runners between the ages 18 and 23 recruited from a Division I college. Participants were assessed for ankle laxity using ankle physical examination maneuvers such as the anterior drawer and talar tilt test. Ankle flexibility and range of motion through ankle dorsiflexion, plantarflexion, inversion, and eversion were measured using a goniometer. Ankle instability was assessed through the CAIT survey.</p><p><strong>Results: </strong>There was no difference in incidence of injury rates between swimmers and runners. Swimmers demonstrated a positive tilt test (defined as no clear end point) at significantly higher rates than runners). Swimmers demonstrated significantly greater ankle ROM than runner controls in plantarflexion, inversion in neutral, inversion in plantarflexion, eversion in neutral, and eversion in plantarflexion (t=-6.770, P<0.001; t=-4.140, P<0.001; t=-5.293, P<0.001; t=-2.153, P=0.017; t=-3.351, P<0.001). Finally, swimmers also demonstrated lower CAIT scores than control runners (24.78 and 26.79), which equates to greater degrees of ankle instability (t=-2.142, P=0.035).</p><p><strong>Conclusions: </strong>Although ankle injuries are not common in swimmers, swimmers demonstrate significantly increased ankle flexibility, laxity, and instability compared to runner controls. It is not clear what the significance of these findings are yet; however, it is possible that increased laxity and instability in swimmers' ankles may predispose to ankle injuries in the future, especially swimmers cross-train on land or switch to land-based sports. More research is required to investigate the relationship between ankle laxity and instability in swimmers and injury risk through longitudinal cohort studies.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1194-1200"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144608650","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":"Force-velocity-power profiling versus traditional strength measures for prediction of athletic performance.","authors":"Tobias Buk Jørgensen, Nicklas Junge, Jesper Lundbye-Jensen, Lars Nybo","doi":"10.23736/S0022-4707.25.16545-6","DOIUrl":"10.23736/S0022-4707.25.16545-6","url":null,"abstract":"<p><strong>Background: </strong>Force-velocity-power (FVP) profiling may offer additional information regarding neuromuscular parameters compared to traditional isometric peak force (IPF) and one-repetition maximum (1RM) testing, however, the additional associative value towards athletic performance remains less clear.</p><p><strong>Methods: </strong>Therefore, this cross-sectional study compared half squat IPF/1RM and maximal power (Pmax) derived from squat jump FVP profiling with vertical jump, linear sprint, and change of direction (COD) performance in 84 sport science students (35 females, 49 males). A Pearson's correlation coefficient was used to assess the relationships among the variables and multiple linear regression analyses were used to test the independent implication of the FVP variables Pmax and force-velocity imbalance (FV<inf>imb</inf>).</p><p><strong>Results: </strong>IPF displayed small correlations with peak sprint velocity and 30-m sprint time (P<0.05, r=0.266-0.294), but not with any other athletic performance measures. 1RM displayed significant (P<0.01) moderate-large correlations (r=0.301-0.516) with all performance measures. Correlations between Pmax and all performance measures were moderate-very large (r=0.465-0.714) and highly significant (P<0.001). Including FV<inf>imb</inf> significantly (P<0.02) increased the correlation coefficients for Pmax with 30-m sprint time and COD.</p><p><strong>Conclusions: </strong>IPF showed small associations with jump, sprint, and COD performance, whereas 1RM and FVP profiling offer moderate to very large associations with explosive athletic performance. The results support an added value of obtaining FVP measures, particularly Pmax, compared to isometric and low-velocity (1RM) strength tests in assessing neuromuscular functional capacity.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1156-1165"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575655","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 swimming fatigue on neuromuscular parameters in young swimmers with unilateral shoulder pain.","authors":"Miriam Martini, Andrea Cargnel, Alessandra Raffini, Laura Mazzari, Milos Ajcevic, Agostino Accardo, Gianluca Canton, Manuela Deodato, Alex Buoite Stella, Luigi Murena","doi":"10.23736/S0022-4707.25.16467-0","DOIUrl":"10.23736/S0022-4707.25.16467-0","url":null,"abstract":"<p><strong>Background: </strong>A cross-sectional study was conducted to investigate the effects of fatigue on isometric strength and surface electromyography (sEMG) in swimmers with unilateral shoulder pain compared to healthy controls.</p><p><strong>Methods: </strong>Twenty front-crawl swimmers participated in the present study and were grouped according to the presence (PAIN, N.=10, 3 females, 23±3 years) or absence (controls, N.=10, 4 females, 22±5 years) of unilateral shoulder pain, based on subjective reporting and physiotherapy evaluation. Before and after swimming fatigue training, the sEMG signals were recorded during a functional upper-limb task and a strike task and were normalized according to their maximal voluntary isometric contraction (%MVIC), and an isometric strength assessment was performed for the shoulder.</p><p><strong>Results: </strong>A significant interaction effect time × group was found during the functional task in the sternocleidomastoid (m.SCM) muscle (P=0.014, pη²=0.294) and pectoralis major (m.PM) muscle (P=0.027, pη²=0.243), whereas during the strike task, only the serratus anterior (m.SA) muscle was characterized by a significant interaction (P=0.006, pη²=0.346). In particular, in the PAIN group, fatigue reduced m.PM activation by 0.8% MVIC (Cohen's d=0.440) and increased m.SCM activation by 0.7% MVIC (Cohen's d=0.633), as well as increased m.SA activation by 24.2% MVIC (Cohen's d=1.356), whereas in controls m.SCM decreased by 0.6% MVIC (Cohen's d=0.485). Finally, the PAIN group was characterized by lower IR strength than controls after the training by 0.127 N/kg (Cohen's d=0.988).</p><p><strong>Conclusions: </strong>Pain and fatigue can affect muscle strength and sEMG activity in swimmers with unilateral shoulder pain. These findings could provide novel insights into the physiological and pathophysiological mechanisms underlying unilateral shoulder pain in swimmers, supporting the development of new training and treatment strategies.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1127-1137"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144497395","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":"Accuracy and cross-validity of the Xiaomi Mi Band 2, 3, 4, and 5 wristbands in evaluating physical activity in adolescents according to WHO 2020 guidelines: School-Fit study.","authors":"Daniel Mayorga-Vega, Santiago Guijarro-Romero, Carolina Casado-Robles, Jesús Viciana","doi":"10.23736/S0022-4707.25.15590-4","DOIUrl":"10.23736/S0022-4707.25.15590-4","url":null,"abstract":"<p><strong>Background: </strong>The aims of the present study were to examine the accuracy and cross-validity of Xiaomi Mi Band (XMB) 2, 3, 4 and 5 activity wristband-measured daily physical activity thresholds related to achieving at least the recommended 60 minutes per day of moderate-to-vigorous intensity physical activity in adolescents.</p><p><strong>Methods: </strong>Following a cross-sectional design, 70 adolescents (final sample=62; 54.84% females), aged 11-17 years old, from a public high school wore the activity wristbands XMB 2, 3, 4 and 5 (non-dominant wrist; index tests=steps, slow- and/or brisk-pace walking, total physical activity and moderate-to-vigorous physical activity) and ActiGraph wGT3X-BT accelerometers (right hip; reference standard=moderate-to-vigorous intensity physical activity) for a day. 29.03% of the adolescents achieved the moderate-to-vigorous intensity physical activity recommendation.</p><p><strong>Results: </strong>The results of the Receiver Operating Characteristic curve analyses showed that the accuracy of the activity wristband-measured daily steps thresholds was excellent (e.g., Sensitivity=1.00, Specificity=0.91, k=0.85), being higher than those with intensity-related physical activity outputs. The cross-validity results showed that thresholds from 8,521 to 9,070 steps/day had excellent values (e.g., Sensitivity/Specificity ≥0.90, k≥0.75).</p><p><strong>Conclusions: </strong>Activity wristband-measured daily steps thresholds are more accurate than those with intensity-related physical activity outputs for evaluating the recommended 60 minutes per day of moderate-to-vigorous intensity physical activity. A 9000-step-per-day recommendation is a simple and accurate activity wristband-based recommendation for adolescents.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1210-1220"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637380","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 effect of pulmonary functions and respiratory muscle strength on sports performance in elite archers.","authors":"Zeynep Selçuk, Seda Saka, Hayri Ertan","doi":"10.23736/S0022-4707.25.16511-0","DOIUrl":"10.23736/S0022-4707.25.16511-0","url":null,"abstract":"<p><strong>Background: </strong>The physical, physiological, and functional characteristics of archers affect target shooting performance. In our observational study, we aimed to examine the effect of pulmonary functions and respiratory muscle strength on sports performance in archers.</p><p><strong>Methods: </strong>Our study included 46 (27 female, 19 male) professional archers registered in archery sports clubs in İstanbul. Sociodemographic and physical characteristics were recorded. Pulmonary function test (PFT), respiratory muscle strength, shooting performance test, Moberg-Pickup Collection Test, Nelson Hand Reaction Test, and Fatigue Severity Scale (FSS) were applied to all participants.</p><p><strong>Results: </strong>The archery sports experience of the 46 athletes was determined to be 43.23±22.77 months. There was a moderate positive correlation between the archery shooting performance and FEV<inf>1</inf> (L), FEV<inf>1</inf> (%), FVC (L), FVC (%), MIP (cmH<inf>2</inf>O), and MEP (cmH<inf>2</inf>O) (P<0.05). There was no statistically significant correlation between the archery shooting performance and the Nelson Hand Reaction Test, Moberg-Pickup Collection Test, and FSS score (P>0.05).</p><p><strong>Conclusions: </strong>In our study, it was determined that pulmonary functions and respiratory muscle strength affected shooting performance in archers. Therefore, the respiratory muscle training included in the training programs of the archers can be supported to increase their shooting performance by improving their pulmonary functions and respiratory muscle strength.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1150-1155"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575667","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":"Optimizing sprint performance: a comparative analysis of strength training methodologies.","authors":"Haiting Li","doi":"10.23736/S0022-4707.25.16580-8","DOIUrl":"10.23736/S0022-4707.25.16580-8","url":null,"abstract":"<p><strong>Background: </strong>This investigation sought to elucidate the differential effects of varied strength training approaches on sprint velocity and initial acceleration in high-level sprinters.</p><p><strong>Methods: </strong>The study engaged 48 elite track athletes (equally divided between males and females, aged 18-25) who were randomly allocated to four distinct training regimens: conventional resistance training (CRT), plyometric training (PLT), integrated complex training (ICT), and a control cohort (CC) adhering to their standard training protocol. The experimental phase spanned 12 weeks, with three weekly sessions supplementing the participants' regular sprint practice. Assessment metrics, conducted pre- and post-intervention, encompassed 10-m and 30-m sprint durations, ground force reactions during the early acceleration phase, and peak strength indicators.</p><p><strong>Results: </strong>The results revealed that while all experimental groups exhibited enhanced sprint performance relative to the control, the integrated complex training cohort demonstrated the most pronounced improvements in both sprint velocity and acceleration capacity (P<0.01). The plyometric training group showcased the most significant advancements in initial acceleration (P<0.05), whereas the conventional resistance training group achieved the highest gains in maximal strength (P<0.01).</p><p><strong>Conclusions: </strong>These outcomes suggest that a multifaceted approach to strength development, particularly one that incorporates complex training principles, may yield optimal results for overall sprint performance enhancement in elite sprinters. The study underscores the importance for coaches and athletes to consider implementing a diverse spectrum of strength training methodologies to maximize sprint speed and acceleration potential.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":" ","pages":"1166-1177"},"PeriodicalIF":1.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144540617","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}