International journal of sports physiology and performance最新文献

Comparative Effects of the Free Weights and Smith Machine Squat and Bench Press: The Important Role of Specificity for Strength Adaptations. 自由重量和史密斯机深蹲和卧推的比较效果：特异性对力量适应的重要作用。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-12-31 Print Date: 2025-02-01 DOI: 10.1123/ijspp.2024-0274

Daniel Marcos-Frutos, Sergio Miras-Moreno, Gonzalo Márquez, Amador García-Ramos

{"title":"Comparative Effects of the Free Weights and Smith Machine Squat and Bench Press: The Important Role of Specificity for Strength Adaptations.","authors":"Daniel Marcos-Frutos, Sergio Miras-Moreno, Gonzalo Márquez, Amador García-Ramos","doi":"10.1123/ijspp.2024-0274","DOIUrl":"10.1123/ijspp.2024-0274","url":null,"abstract":"Purpose: Although previous studies have compared strength-training adaptations between free weights (FW) and machine-guided exercises, those studies did not use a Smith machine (SM), which most closely replicates the exercises performed with FW. Thus, the aim of the present study was to investigate the chronic effects of strength-focused, velocity-based training regimens using FW versus SM.Methods: Thirty-seven sport-science students (14 female) were assigned, balanced by sex and relative strength, to either an FW or SM training group. The training program lasted 8 weeks (2 sessions/wk), and participants performed 4 sets per exercise (back squat and bench press) at 70% of their 1-repetition maximum with moderate effort levels (20%-25% velocity loss). Load-velocity profile parameters (load-axis intercept, velocity-axis intercept, and area under the load-velocity relationship line), cross-sectional areas of the vastus lateralis and pectoralis major muscles, and the number of repetitions to failure in the bench-press exercise were assessed before and after the training program. Mechanical variables were assessed using both FW and SM.Results: All variables, with the exception of back-squat velocity-axis intercept (P = .124), improved in both training groups. The changes in load-axis intercept and area under the load-velocity relationship line were more pronounced when the training and testing conditions matched. Failure in the bench-press exercise and cross-sectional areas of the vastus lateralis and pectoralis major showed comparable improvements for both training groups, while velocity-axis intercept tended to improve more in the SM group.Conclusions: The general population, unconcerned with the specificity of strength adaptations, can choose a training modality (FW or SM) based on personal preferences.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"292-300"},"PeriodicalIF":3.5,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hip Adduction and Abduction Strength Reference Values of Gaelic Football and Rugby Union Players: A Cross-Sectional Study. 盖尔足球和橄榄球联盟球员髋内收外展力量参考值：一项横断面研究。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-12-31 Print Date: 2025-02-01 DOI: 10.1123/ijspp.2024-0116

Ciaran O'Connor, Martin McIntyre, Eamonn Delahunt, Kristian Thorborg

{"title":"Hip Adduction and Abduction Strength Reference Values of Gaelic Football and Rugby Union Players: A Cross-Sectional Study.","authors":"Ciaran O'Connor, Martin McIntyre, Eamonn Delahunt, Kristian Thorborg","doi":"10.1123/ijspp.2024-0116","DOIUrl":"10.1123/ijspp.2024-0116","url":null,"abstract":"Purpose: The purpose of this research was to report isometric hip adduction and abduction strength reference values of men's and women's Gaelic football and rugby union players and compare values between sexes and between sports.Methods: This cross-sectional cohort study consisted of 331 club-level athletes. Maximum isometric hip adduction squeeze and abduction press strength values were measured with a ForceFrame across several testing positions.Results: Hip adduction squeeze and abduction press strength reference values for men's and women's Gaelic and rugby union footballers were provided with mean and 1 SD. A 2-way analysis of variance demonstrated significant sport × sex interaction main effects for hip adduction squeeze (η2 = .159-.228), abduction press (η2 = .099-.144), and adduction:abduction ratio (η2 = .120). Men demonstrated significantly greater relative (Newtons per kilogram) maximum isometric hip adduction squeeze (15.5%-26.4%, 0.48-1.00 N/kg) and hip abduction press (9.6%-19.6%, 0.20-0.67 N/kg) strength across all testing positions when compared with women of the same sport. Male Gaelic football players demonstrated significantly greater hip adduction (8.7%-14.0%, 0.30-0.52 N/kg) and abduction (6.1%-8.6%, 0.16-0.31 N/kg) strength (Newtons per kilogram) than their rugby counterparts, while no significant between-sports differences in strength were observed between female athletes.Conclusion: Reference values are provided with mean and 1 SD. Sport and sex interaction had significant main effects for hip adduction, abduction, and adduction:abduction ratio, with medium to large effect sizes. Male athletes demonstrate significantly greater hip strength than female athletes of the same sport, and male Gaelic players demonstrate greater hip strength than male rugby players.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"282-291"},"PeriodicalIF":3.5,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on Sitko et al: Unbiased Analysis of Zone 2 Exercise Training and Expected Benefits. 对Sitko等人的评论：2区运动训练和预期收益的无偏分析。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-15 DOI: 10.1123/ijspp.2025-0120

Isaac A Chavez Guevara

引用次数: 0

Inspiratory Muscle Warm-Up and Perceptual, Physiological, and Performance Outcomes During Exercise in Normoxia and Hypoxia. 在常氧和低氧条件下，运动时的吸气肌热身和知觉、生理和表现结果。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-15 DOI: 10.1123/ijspp.2024-0425

Mikaela C Gabler, Bruce J Martin, Blair D Johnson, Zachary J Schlader, Robert F Chapman

{"title":"Inspiratory Muscle Warm-Up and Perceptual, Physiological, and Performance Outcomes During Exercise in Normoxia and Hypoxia.","authors":"Mikaela C Gabler, Bruce J Martin, Blair D Johnson, Zachary J Schlader, Robert F Chapman","doi":"10.1123/ijspp.2024-0425","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0425","url":null,"abstract":"Introduction: Some evidence shows that an inspiratory muscle warm-up (IMW) could enhance exercise performance; however, outcomes are mixed, and the mechanistic basis is unclear. Therefore, our purpose was to examine how IMW affects the sensory and affective components of dyspnea, exercise performance, and locomotor muscle oxygenation.Methods: Thirteen recreationally active individuals (23 [5] y, 5 women) performed a cycling time-to-exhaustion test (∼80%-85% maximal oxygen uptake) preceded by either IMW (2 × 30 breaths, 40% maximal inspiratory pressure) or SHAM (2 × 30 breaths, 15% maximal inspiratory pressure) in normoxic (FIO2 = 0.21) and hypoxic (FIO2 = 0.16) conditions (ie, 4 trials total). Near-infrared spectroscopy, dyspnea (ie, breathing intensity and breathing unpleasantness), and cardiorespiratory parameters were measured throughout. Cardiorespiratory variables were analyzed using the individual isotime method.Results: There were no differences in mean dyspnea responses between IMW and SHAM (P > .05). Mean Δ tissue saturation index did not reach statistical significance between IMW and SHAM in normoxia (P = .110) or hypoxia (P = .07). Mean performance was not different in normoxia (P = .636) or hypoxia (P = .512). In normoxia, minute ventilation (P = .059) and breathing frequency (P = .056) approached significance with IMW values greater compared with SHAM in the third isotime.Conclusion: Group improvements in dyspnea, performance, and Δ tissue saturation index were not seen following IMW. However, the degree of selected individual responses suggests that this intervention has interindividual applicability that should not be overlooked.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-9"},"PeriodicalIF":3.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144077984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Durability in Youth Squad Triathletes-Influence of Strenuous Cycling on Subsequent Running Performance, Economy, and Substrate Utilization. 青少年铁人三项代表队的耐久性——剧烈循环对后续跑步表现、经济性和基质利用率的影响。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-14 DOI: 10.1123/ijspp.2025-0009

Greta Röhrs, Sebastian Keller, Patrick Wahl

{"title":"Durability in Youth Squad Triathletes-Influence of Strenuous Cycling on Subsequent Running Performance, Economy, and Substrate Utilization.","authors":"Greta Röhrs, Sebastian Keller, Patrick Wahl","doi":"10.1123/ijspp.2025-0009","DOIUrl":"https://doi.org/10.1123/ijspp.2025-0009","url":null,"abstract":"Purpose: This study aimed to investigate oxygen/energy cost (OC/EC) of running and substrate utilization before and after strenuous cycling in well-trained junior triathletes and the relevance of changes in these variables for fatigued running performance.Methods: Nineteen junior squad triathletes (4 female, 15 male; 17.2 [1.8] y; maximal oxygen uptake (V˙O2peak) 61.4 [5.1] mL·kg-1·min-1) completed 3 submaximal running steps (2.8 m·s-1, +0.4 m·s-1, and 5 min) under fresh conditions, followed by an incremental cycling test (∼2 W·kg-1, +20 W, and 3 min) to exhaustion. Afterward, they performed another incremental running test to exhaustion under fatigued conditions for V˙O2peak, OC, and time-to-exhaustion assessment. During both runs, OC, EC, and carbohydrate/fat oxidation (CHO/FO) were assessed.Results: Contrary to trivial/small average changes in OC (210 [15] to 209 [14] mL·kg-1·km-1, P = .71) and EC (4.75 [0.33] to 4.59 [0.29] kJ·kg-1·km-1, P = .02), CHO decreased (2.96 [0.68] to 2.08 [0.68] g·min-1) while FO increased (0.15 [0.13] to 0.48 [0.22] g·min-1) significantly from fresh to fatigued running (P < .001). Besides V˙O2peak (r = .68, P = .002), the changes in CHO (r = -.60, P = .01) and FO (r = .67, P = .003) were significantly correlated with fatigued time to exhaustion (1715 [172] s). Multiple regression and commonality analysis identified V˙O2peak, OC, and the change in FO as the best model for time to exhaustion (R2 = 88%).Conclusion: Despite trivial/small changes in OC/EC from fresh to fatigued running, a pronounced shift in substrate utilization from CHO to FO was evident in junior triathletes, which was also associated with fatigued running performance.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-11"},"PeriodicalIF":3.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144077983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Stabilization Exercises on Athletic Performance and Injury Risk in College Volleyball Players. 稳定训练对高校排球运动员运动成绩及损伤风险的影响。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-13 DOI: 10.1123/ijspp.2024-0348

Raziye Erkan, Emine Aslan Telci

{"title":"Impact of Stabilization Exercises on Athletic Performance and Injury Risk in College Volleyball Players.","authors":"Raziye Erkan, Emine Aslan Telci","doi":"10.1123/ijspp.2024-0348","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0348","url":null,"abstract":"Purpose: This study aimed to determine the effects of stabilization exercises on athletic performance and injury risk in volleyball players.Methods: A randomized clinical trial was conducted at university sport facilities with 23 college volleyball players age 18 to 25 years. Using a stratified randomization method, participants were randomly assigned to the control group (n = 11), which continued their routine training program, or the intervention group (n = 12), which performed additional volleyball-specific stabilization exercises twice per week for 8 weeks. The main outcomes, including injury risk, and athletic performance were assessed using functional movement screening, sit-reach flexibility test, weight-bearing lunge, medicine-ball throw, closed-kinetic-chain upper-extremity stability test, 20-m speed test, serve skill test, vertical jump test, and upper- and lower-extremity dynamic Y-balance test.Results: Both groups showed significant improvements in all parameters after the 8-week program, except for the control group's sit-reach test and asymmetry points (P < .05). When comparing the 2 groups, the intervention group showed significantly greater improvements in functional movement screening score, asymmetry points, medicine-ball throw, closed-kinetic-chain upper-extremity stability test, vertical jump, serve skill, Y-balance test scores for upper and lower extremities, lower-extremity anterior asymmetry score, and right-foot weight-bearing lunge results (P < .05).Conclusions: Stabilization exercises effectively reduce injury risk and enhance athletic performance in volleyball players. Incorporating these exercises into training programs can be a valuable strategy for preventing injuries and improving individual and team success in volleyball.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-10"},"PeriodicalIF":3.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144010119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Complex Training on Sprint Acceleration and Neuromuscular Performance in Young Male Sprinters: A Comparison Between Incline and Level Speed Bounding. 复杂训练对年轻男子短跑运动员短跑加速和神经肌肉性能的影响：倾斜和水平速度跳跃的比较。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-13 DOI: 10.1123/ijspp.2024-0243

Chanawat Sanpasitt, Chaninchai Intiraporn, Tossaporn Yimlamai

{"title":"Effects of Complex Training on Sprint Acceleration and Neuromuscular Performance in Young Male Sprinters: A Comparison Between Incline and Level Speed Bounding.","authors":"Chanawat Sanpasitt, Chaninchai Intiraporn, Tossaporn Yimlamai","doi":"10.1123/ijspp.2024-0243","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0243","url":null,"abstract":"Purpose: This study aimed to compare the effectiveness of complex training (CT) with inclined versus horizontal speed bounding on sprint acceleration ability and neuromuscular performance in youth male sprinters.Methods: Thirty male sprinters 14 to 16 years of age were randomly allocated to 1 of 3 groups (n = 10/group): CT with incline speed bounding, CT with horizontal speed bounding, or control (CON). Both intervention groups completed 3 repetitions of back-squat exercise (85% 1-repetition maximum), followed by speed bounding on either a 9° or 0° platform, twice weekly for 6 weeks in addition to their usual training, whereas the CON group received no intervention. The 50-m sprint test, leg muscular power, isokinetic strength of knee extensors and flexors, and the Hoffman reflex and volitional wave in soleus and gastrocnemius muscles were measured before and after the intervention.Results: Following 6 weeks of training, both the CT with incline speed bounding and the CT with horizontal speed bounding groups displayed similar improvements (P < .05) in 10- and 20-m sprint times compared with prior training and the CON group, of which the CT with incline speed bounding group showed a greater (P < .05) 10-m sprint velocity. These changes were concomitant with significant increases in peak force (P < .05) but not volitional wave amplitude and V:Mmax ratio in both muscles. However, the CON group did not show these improvements.Conclusion: These findings indicate that incorporation of inclined speed bounding into CT over 6 weeks is more effective in improving sprint acceleration performance compared with horizontal CT, irrespective with Hoffman reflex modulations.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-9"},"PeriodicalIF":3.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144000960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exercise Sensations During Moderate-Intensity Heart-Rate-Clamped Cycling in Graded Hypoxia: A Qualitative Approach. 分级缺氧中中等强度心率夹紧骑行时的运动感觉：一种定性方法。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-13 DOI: 10.1123/ijspp.2024-0519

Siu Nam Li, Peter Peeling, Timothy Budden, Aaron Simpson, Brendan R Scott, Jeremiah J Peiffer, Alex Shaykevich, Olivier Girard

{"title":"Exercise Sensations During Moderate-Intensity Heart-Rate-Clamped Cycling in Graded Hypoxia: A Qualitative Approach.","authors":"Siu Nam Li, Peter Peeling, Timothy Budden, Aaron Simpson, Brendan R Scott, Jeremiah J Peiffer, Alex Shaykevich, Olivier Girard","doi":"10.1123/ijspp.2024-0519","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0519","url":null,"abstract":"Purpose: To explore how graded hypoxia affects perceptual sensations during heart-rate (HR) -clamped cycling using qualitative methods.Methods: Sixteen trained males cycled for 60 minutes on separate visits, with their HR clamped at 80% of their first ventilatory threshold across simulated altitudes of 2500 m, 3000 m, 3500 m, and 4000 m and in normoxia. After each session, an ∼10-minute structured interview was conducted to gather insights into participants' perceptions of the exercise under each condition. Interview transcripts were analyzed for key themes, which were presented in a pen profile.Results: At 4000 m, 5 participants perceived light-headedness and 2 had difficulty focusing, which were not experienced at lower altitudes. Difficulty breathing increased progressively with hypoxic severity, from 1 report in normoxia to 9 at 4000 m. Limb discomfort was consistently reported across all conditions.Conclusion: Despite comparable physiological responses during HR-clamped cycling, hypoxia severity influenced selected perceived sensations (ie, difficulty focusing, difficulty breathing, and light-headedness). These effects should be considered when selecting the desired hypoxic severity for HR-clamped cycling.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-4"},"PeriodicalIF":3.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144018379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mixing the Sheep and the Goats: Reframing the Interpretation of Acceleration Data in Sport. 混合绵羊和山羊：重新定义运动加速度数据的解释。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-13 DOI: 10.1123/ijspp.2024-0521

Pedro Oliveira, Ivan Baptista, Felipe A Moura, Daniel Boullosa, Fábio Y Nakamura, José Afonso

{"title":"Mixing the Sheep and the Goats: Reframing the Interpretation of Acceleration Data in Sport.","authors":"Pedro Oliveira, Ivan Baptista, Felipe A Moura, Daniel Boullosa, Fábio Y Nakamura, José Afonso","doi":"10.1123/ijspp.2024-0521","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0521","url":null,"abstract":"Purpose: Acceleration is a continuous variable, and current practices of categorizing it into nonconsensual arbitrary thresholds may potentially lead to imprecise and biased data interpretation, as well as limiting interstudy comparisons. This commentary proposes a reframing of the interpretation of acceleration data and their use for athlete monitoring and exercise prescription. Although this applies to multiple sports, we will focus on the example of team sports in which these metrics are commonly used.Conclusion: Despite the recognized benefits of acceleration monitoring, 2 major limitations are evident. First, the common practice of classifying continuous acceleration data into discrete categories leads to a loss of relevant information, thus reducing the validity, reliability, and statistical power of analyses. Second, the use of arbitrary thresholds fails to account for individualized profiles, which are essential for monitoring. The limitations of these approaches are exacerbated by the lack of any objective justification for the thresholds used. We propose that acceleration be analyzed continuously, and, therefore, interpretation of data should be individualized. Accelerations should be analyzed as continuous variables rather than categorized into arbitrary thresholds. Individualized monitoring using players' maximum acceleration as a reference can provide a more accurate representation of players' physical demands.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-4"},"PeriodicalIF":3.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144003905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effects of Active Versus Passive Interset Rest Intervals in the Bench-Press Exercise in Resistance-Trained Men: A Randomized Crossover Study. 抗阻训练男性卧推运动中主动与被动间歇休息时间的影响：一项随机交叉研究。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-05-13 DOI: 10.1123/ijspp.2024-0498

Luis A Berlanga, José López-Chicharro, Ismael Martínez-Guardado, Julio A Ceniza-Villacastín, Michelle Matos-Duarte

{"title":"The Effects of Active Versus Passive Interset Rest Intervals in the Bench-Press Exercise in Resistance-Trained Men: A Randomized Crossover Study.","authors":"Luis A Berlanga, José López-Chicharro, Ismael Martínez-Guardado, Julio A Ceniza-Villacastín, Michelle Matos-Duarte","doi":"10.1123/ijspp.2024-0498","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0498","url":null,"abstract":"Purpose: Interset rest (ISR) is a variable of resistance training (RT) that has received limited attention and focused mainly on the length of the ISR rather than examining the effects of different stimuli when using the same ISR duration. The aim of this study was to compare the effects of 2-minute passive (PAS) or active ISR (ACT) on intraset velocity loss, blood lactate concentrations, and rating of perceived exertion during bench press in resistance-trained men.Methods: Fourteen participants (23.64 [2.02] y, 82.79 [10.74] kg, 181.50 [7.02] m, maximal power in bench press 660 [113] W) completed 2 RT sessions of 5 × 8 repetitions at maximal velocity using individual optimal load for maximal power output with 2-minute PAS or ACT ISR. During the ACT, participants completed repetitions of vertical chest press at 5% to 10% 1-repetition maximum at a controlled velocity. The intraset velocity loss was measured using a lineal encoder, and blood lactate concentrations and rating of perceived exertion before and after each set were registered.Results: Intraset velocity loss was lower in ACT compared with the PAS protocol, without statistically significant differences (P = .571). Blood lactate concentrations increased across the session for both ISR protocols, but this increase was diminished in ACT compared with PAS, without statistical meaning (P > .05).Conclusions: Continuing to perform the same activation during rest intervals was well-tolerated and may reduce the loss of performance due to accumulated workload throughout an RT session, suggesting that ACT may trigger a metabolic advantage in exercise performance for consecutive sets during an RT bout.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-7"},"PeriodicalIF":3.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144017099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0