Journal of Strength and Conditioning Research最新文献

{"title":"Effects of Rating of Perceived Exertion-based Deadlift Training on Muscle Performance: A Practical Approach to Program Design.","authors":"Alexander D Young, Ashwyn Asthana, Jacob J Stephan, SangYup Lee, Nicholas J Newton, Aubrey Newland, Ryan Perkins","doi":"10.1519/JSC.0000000000005690","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005690","url":null,"abstract":"<p><strong>Abstract: </strong>Young, AD, Asthana, A, Stephan, JJ, Lee, SY, Newton, NJ, Newland, A, and Perkins, R. Effects of rating of perceived exertion-based deadlift training on muscle performance: A practical approach to program design. J Strength Cond Res XX(X): 000-000, 2026-The purpose of this study was to compare rate of perceived exertion (RPE)-based and fixed %-based deadlift training on muscle strength, fatigue, and body composition. We hypothesized that RPE-based training would yield superior adaptations. Subjects were randomly assigned to RPE- or %-based training (RPE: n = 12, 23.6 ± 1.6, %: n = 12, 25.2 ± 2.1 years, d = 0.327, p > 0.05). Training programs used identical set and repetition schemes but differed in load prescription. Maximum deadlift (DL 1RM) primary outcome and hand grip strength and body composition (dual x-ray absorptiometry) secondary outcomes were assessed before and after training. Fatigue estimates were collected throughout the study using a 100-mm visual analog scale. Nine subjects completed the intervention in each group. Data were analyzed using 2-way mixed-model ANOVAs and independent t-tests, with statistical significance set at p < 0.05 and effect sizes reported. Average DL training volume was similar between groups (RPE: 1,212 ± 159 kg/session, %: 1,338 ± 123 kg/session, d = 0.297, p > 0.05), whereas the % group completed more total training volume (RPE: 2,059 ± 325 kg/session, %: 4,496 ± 582 kg/session, d = 1.715, p < 0.05). Average relative training load was similar between groups (RPE: 82 ± 2% 1 repetition maximum (1RM), %: 80 ± 2% 1RM, d = 0.176, p > 0.05). Deadlift 1RM increased in both groups (RPE: +12.3 ± 2.8 kg, %: +10.8 ± 2.0 kg; η2 = 0.012, p < 0.05). Right hand grip strength increased in the RPE group only (+3.6 ± 1.5 kg, η2 = 0.026, p < 0.05). Average pretraining session fatigue scores were lower only in the RPE group (RPE: 27.8 ± 1.4, mm: 32.7 ± 1.6 mm, p < 0.05). Body composition remained unchanged in both groups. Taken together, findings indicate RPE-based training elicits comparable strength adaptations to %-based loading while being associated with lower perceived fatigue.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149128009","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}

{"title":"Increasing Robotic Horizontal Resistance Alters Pair-Specific Intermuscular Timing During Sprint Acceleration.","authors":"Fuzong Chang, Yanxin Zhang, Dexing Qian, Tianshu Liu, Paul Marshall","doi":"10.1519/JSC.0000000000005700","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005700","url":null,"abstract":"<p><strong>Abstract: </strong>Chang, F, Zhang, Y, Qian, D, Liu, T, and Marshall, P. Increasing robotic horizontal resistance alters pair-specific intermuscular timing during sprint acceleration. J Strength Cond Res XX(X): 000-000, 2026-The purpose of this study was to determine whether increasing horizontal resistance alters pair-specific intermuscular timing and coupling during sprint acceleration. Fifteen university sprinters, 8 men and 7 women, performed maximal 30-m accelerations under 4 randomized robotic horizontal resistance conditions of 0, 5, 10, and 15% body weight (BW). Surface electromyography (EMG) was recorded from gluteus maximus (GMax), biceps femoris (BF), and gastrocnemius medialis (GM). All EMG channels shared a common acquisition time base. Gluteus maximus onset was used to define a common 300-ms analysis window, and normalized cross-correlation quantified temporal lag at peak correlation and coupling strength for the GMax-BF and GMax-GM pairs within a fixed ±100-ms lag range. Increasing resistance produced a greater GMax-GM lag at 15% than at 0% BW (paired mean difference 29.6 ms, 95% confidence interval: 14.1-45.1 ms; Holm-adjusted p = 0.006; Hedges' g = 0.90). No corrected GMax-BF pairwise contrast was identified, and coupling strength was unaffected by load in either muscle pair. For practitioners, resisted-sprint load selection may therefore influence the acute intermuscular timing demands imposed during acceleration, although the present results do not identify an optimal load or establish transfer to unresisted sprint performance.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149111362","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}

{"title":"Relationship Between Individual Workload, Training Impulse, and Game Performance in Women Collegiate Basketball Athletes.","authors":"Faith S A Brown, Jennifer B Fields, Andrew R Jagim, Angela Miller, Robert E Baker, Margaret T Jones","doi":"10.1519/JSC.0000000000005696","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005696","url":null,"abstract":"<p><strong>Abstract: </strong>Brown, FSA, Fields, JB, Jagim, AR, Miller, A, Baker, RE, and Jones, MT. Relationship between individual workload, training impulse, and game performance in women collegiate basketball athletes. J Strength Cond Res XX(X): 000-000, 2026-The purpose was to quantify game external load (EL) demands and explore relationships between EL, internal load (IL), and measures of basketball performance across a competitive season in women basketball athletes (n = 7). Data were collected by an inertial measurement unit microsensor and heart rate monitor for games (n = 28) and practices (n = 61). Playerload™ (PL), training impulse (TRIMP), and player efficiency (PE) were used to quantify EL, IL, and basketball performance, respectively. Descriptive statistics were used to quantify individual athlete PE, IL, and EL game measures, and game statistics for each game and stratified by position type. Repeated-measures correlations assessed relationships between PL, TRIMP, and PE. Two separate location scale models (PL, TRIMP) assessed the effect of session, position, PE, and previous day workload (PL lag, TRIMP lag). Results showed small to very large relationships (r = 0.21-0.85) between PL, TRIMP, and PE. Previous day workloads (PL, TRIMP) positively affected next-day load. Playerload increased as PE increased. Guards experienced higher within person variability of PL than forward or center positions. Athletes experienced high within person variability of PL (25.50 AU) and TRIMP (20.90 AU) across the season. The average TRIMP remained consistent across the season (230.2 AU) but varied between athletes (B = 0.90 [95% CI: 0.30-6.50]). Results suggest preceding day workload is associated with next-day workload and player performance, with higher EL being associated with higher PE. Furthermore, higher variability among athletes indicates other factors may affect workload across the season beyond sport training.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149111492","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}

{"title":"The Effects of Fatigue-Induced Velocity Loss on Performance and Neuromuscular Responses During Leg Extension Repetitions Performed With Maximal Intended Velocity.","authors":"Justin S Pioske, Jocelyn E Arnett, Trevor D Roberts, Dolores G Ortega, Richard J Schmidt, Terry J Housh","doi":"10.1519/JSC.0000000000005672","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005672","url":null,"abstract":"<p><strong>Abstract: </strong>Pioske, JS, Arnett, JE, Roberts, TD, Ortega, DG, Schmidt, RJ, and Housh, TJ. The effects of fatigue-induced velocity loss on performance and neuromuscular responses during leg extension repetitions performed with maximal intended velocity. J Strength Cond Res XX(X): 000-000, 2026-Strength and power adaptations are dependent on the magnitude of the physiological stimulus during resistance exercise. Therefore, the present study examined the changes in velocity, force, power, and acute neuromuscular responses of the rectus femoris (RF), vastus lateralis (VL), and vastus medialis (VM) during maximal intended velocity (MIV) leg extension repetitions at velocity losses (VLoss) of 5, 15, and 25%. Twelve men (age: 21.67 ± 2.00 years) performed MIV unilateral leg extensions to failure at 40% 1RM with their nondominant leg. Mean and peak values for velocity, force, and power were recorded with a linear transducer, whereas surface electromyographic amplitude (EMG AMP) and mean power frequency (EMG MPF) values were assessed from the RF, VL, and VM. Repeated measures ANOVAs with Bonferroni-corrected post-hoc comparisons (α = 0.0083) revealed that mean and peak values for velocity and power (-5.9 to -42.3%), and peak values for force (-5.8 to -20.2%) decreased at all VLoss repetitions, whereas mean force decreased at 15% (-0.6%) and 25%VLoss (-0.9%) repetitions. EMG MPF decreased for the RF at all VLoss repetitions, whereas the VM and VL decreased at 15% and 25%VLoss, and 25%VLoss, respectively. EMG AMP increased for all 3 muscles at 15% and 25%VLoss. These findings suggested muscle-specific differences in the development of peripheral fatigue and possible intermuscular motor unit synchronization to maintain the MIV effort. It is recommended to use peak instead of mean VLoss to monitor the fatigue-induced decreases in force and power because peak values more closely tracked the fatigue-induced decreases in EMG MPF during MIV leg extensions.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149110570","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}

{"title":"Effects of Resistance Training on Isometric Force and Muscle Thickness in Prepubertal and Pubertal Boys: A Randomized Controlled Trial.","authors":"Yannik N Komm, Steffen Held, Simon Gavanda, Paul Comfort, Avery D Faigenbaum, Stephan Geisler, Claudia Augste","doi":"10.1519/JSC.0000000000005680","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005680","url":null,"abstract":"<p><strong>Abstract: </strong>Komm, YN, Held, S, Gavanda, S, Comfort, P, Faigenbaum, AD, Geisler, S, and Augste, C. Effects of resistance training on isometric force and muscle thickness in prepubertal and pubertal boys: a randomized controlled trial. J Strength Cond Res XX(X): 000-000, 2026-While increases in strength in youth are largely attributed to neural adaptations, evidence regarding hypertrophic adaptations in prepubertal youth remains inconsistent. This study compared the effects of resistance training on hypertrophy and strength between prepubertal and pubertal adolescents. Sixty-eight male subjects were classified as prepubertal (11.58 ± 1.04 years) or pubertal (14.28 ± 0.88 years) using maturity offset estimates and randomized into 4 groups: prepubertal resistance training (n = 19), prepubertal active control (n = 20), pubertal resistance training (n = 14), and pubertal active control (n = 15). The 9-week intervention consisted of 2 weekly sessions of lower-body resistance training, while the active control groups continued their regular soccer training. Strength was assessed using the isometric mid-thigh pull, and hypertrophy was assessed using muscle thickness. Data were analyzed using linear mixed-effects models. Statistical significance was set at p < 0.05. No significant Time × Intervention interactions were observed for rectus femoris and vastus intermedius (p = 0.295), and for vastus lateralis (p = 0.711). A significant Time × Intervention interaction (p = 0.042) was found for peak force, indicating superior strength improvements in the training groups. No significant Time × Maturity × Intervention interactions were detected for absolute strength (p = 0.289), relative strength (p = 0.656), rectus femoris and vastus intermedius thickness (p = 0.451), or vastus lateralis thickness (p = 0.731), although these analyses had limited statistical power. These findings indicate that the resistance training protocol in this study increased isometric mid-thigh pull force in prepubertal and pubertal adolescent boys.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149111317","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}

{"title":"The Effects of High-Intensity Functional Training With a Respiratory Muscle Training Device on Performance, Mood, and Ventilatory Function.","authors":"Alexa J Chandler, Chimaobim Martin-Diala, Gianna F Mastrofini, Sten Stray-Gundersen, Ryan Artsinger, Noah Nakagawa, Shawn M Arent","doi":"10.1519/JSC.0000000000005692","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005692","url":null,"abstract":"","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149110561","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}

{"title":"Comparison Between Eccentric-Concentric and Eccentric-Only Dumbbell Arm Curl Exercise Training for Their Effects on Neuromuscular Adaptations.","authors":"Keisuke Shibata, Taichi Yamaguchi, Kazuki Takizawa, Kazunori Nosaka","doi":"10.1519/JSC.0000000000005685","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005685","url":null,"abstract":"<p><strong>Abstract: </strong>Shibata, K, Yamaguchi, T, Takizawa, K, and Nosaka, K. Comparison between eccentric-concentric and eccentric-only dumbbell arm curl exercise training for their effects on neuromuscular adaptations. J Strength Cond Res XX(X): 000-000, 2026-Eccentric-concentric (ECC-CON), low-load (ECC-Low), and high-load eccentric-only (ECC-High) dumbbell arm-curl exercise training were compared to test the hypothesis that ECC-Low would induce similar neuromuscular adaptations to ECC-CON and ECC-High. Thirty-four male university students without regular elbow flexor resistance exercise training were placed to ECC-CON (n = 11), ECC-Low (n = 11), or ECC-High (n = 12) group, and trained twice weekly for 6 weeks. The training load was progressively increased from 30 to 90% of concentric-only one-repetition maximum (CON1-RM) for ECC-CON and ECC-Low, and of eccentric-only 1-RM (ECC1-RM) for ECC-High. Rating of perceived exertion (RPE) was recorded after each set and averaged RPE was obtained. Changes in elbow flexion CON1-RM and ECC1-RM, maximal voluntary isometric contraction (MVIC) strength at 30°, 60°, and 90° elbow flexion, concentric peak power at 30% MVIC, and biceps brachii and brachialis muscle thickness (MT) were compared between groups by split-plot analyses of variance. RPE was lower (p < 0.05) in ECC-Low (4.0 ± 0.7) and ECC-High (5.1 ± 1.1) than ECC-CON (6.2 ± 1.1). ECC1-RM, MVIC strength at all angles, and concentric peak power increased (p < 0.01) similarly between groups (e.g., ECC1-RM, ECC-CON: 9.8 ± 4.8%, ECC-Low: 10.3 ± 4.9%, ECC-High: 12.8 ± 7.1%), but increases (p < 0.01) in CON1-RM (ECC-CON: 11.8 ± 7.1%, ECC-High: 9.9 ± 5.3%) and MT (3.9 ± 3.1%, 5.4 ± 4.4%) were evident only after ECC-CON and ECC-High without a difference. These results did not fully support the hypothesis, but ECC-Low was effective for improving 6 of 8 measures similarly to ECC-High and ECC-CON with lower RPE. This suggests the efficacy of eccentric-only resistance exercise training for individuals who are novice in elbow flexor resistance exercise training.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149111352","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}

{"title":"Passive Heating Via Heating Pads Improves Vertical Jump and Agility Performance in NCAA Division III Soccer Players.","authors":"Nigel C Jiwan, Keegan J DeKuiper, Lauren A Sysol, Gabrielle E Chabala, Pietro A Costa","doi":"10.1519/JSC.0000000000005502","DOIUrl":"10.1519/JSC.0000000000005502","url":null,"abstract":"<p><strong>Abstract: </strong>Passive heating may enhance performance by increasing blood flow, improving nerve conduction, and stimulating calcium release. Although most studies focus on saunas or hot water immersion, research on heating pads (HP) remains limited. Thus, this study aims to investigate the effect of HP on athletic performance in soccer players. Nineteen male ( n = 10) and female ( n = 9) soccer players completed 2 identical testing sessions in a randomized, counterbalanced design. HP was applied to both thighs and set to 66°C in the passive heat treatment (PHT) and maintained at body temperature in the sham condition. Skin temperature was taken before (Pre) and after (Post) HP application. After heating, subjects completed 3 performance tests: passing accuracy, vertical jump, and agility t test. Peak power was derived from vertical jump height (VJH). The alpha level was set at p ≤ 0.05. PHT significantly increased thigh skin temperature, improved VJH, peak power, and agility times, while no differences were observed for passing accuracy. PHT improved VJH and agility times in soccer players, supporting HP as an accessible and effective preactivity strategy to enhance performance.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1087-e1093"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055360","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}

{"title":"Effects of Isolated Eccentric Squat Training at Different Velocities on Countermovement Jump Performance, Quadriceps Function, and Hypertrophy.","authors":"Nobuteru Soda, Yohei Shimokochi","doi":"10.1519/JSC.0000000000005516","DOIUrl":"10.1519/JSC.0000000000005516","url":null,"abstract":"<p><strong>Abstract: </strong>Soda, N and Shimokochi, Y. Effects of isolated eccentric squat training at different velocities on countermovement jump performance, quadriceps function, and hypertrophy. J Strength Cond Res 40(10): 1187-1204, 2026-Eccentric training is widely combined with traditional resistance training to improve athletic performance. However, evidence on isolated eccentric training with free weights remains limited. This study investigated the effects of an isolated eccentric squat training at different velocities on quadriceps function, hypertrophy, and the countermovement jump (CMJ) biomechanics. Twenty-four male college students without strength training experience were assigned to 1 of 3 8-week protocols (3 sessions·wk -1 ): slow eccentric squat (SES), CMJ-specific fast eccentric squat (CMJ-specific-FES), or weighted CMJ (WCMJ) training. The SES group performed 5-second descent squats at back squat 1RM (BSQ1RM); CMJ-specific-FES used rapid descents at 50% BSQ1RM. The WCMJ group trained with loads optimized for maximal power. Quadriceps function, hypertrophy, and 3-dimensional CMJ biomechanics were assessed pre-, mid-, and postintervention. The SES group exhibited the greatest quadriceps hypertrophy (10.7% vs. -0.3-2.5%, p < 0.05-0.1), whereas the CMJ-specific-FES group showed the largest improvement in early phase quadriceps rate of force development, particularly within 25 milliseconds (104.7% vs. -20.1-18.1%, p < 0.01), despite comparable strength gains across groups (9.8-23%, p < 0.05). All groups improved CMJ height and related biomechanical variables; however, the CMJ-specific-FES group demonstrated greater increases in quadriceps activities (38.5-59.6% vs. -16.8-21.2%, p < 0.05-0.1), knee joint positive power (26.4 vs. 7.7%, p < 0.05), and CMJ height (9.6 vs. 0.9%, p < 0.05) than the SES group. These findings suggest eccentric training modes should be tailored to specific goals, such as hypertrophy or explosive power, to achieve optimal training adaptations.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1187-1204"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147930426","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}

{"title":"No Effect of Menstrual Cycle Phase on Wingate Power Outputs or Perceived Exertion in Eumenorrheic Women.","authors":"Kelsi R Lambright, Jennifer A Bunn, Daniel E Newmire","doi":"10.1519/JSC.0000000000005503","DOIUrl":"10.1519/JSC.0000000000005503","url":null,"abstract":"<p><strong>Abstract: </strong>Lambright, KR, Bunn, JA, and Newmire, DE. No effect of menstrual cycle phase on Wingate power outputs or perceived exertion in eumenorrheic women. J Strength Cond Res 40(10): 1223-1230, 2026-This study examined whether anaerobic performance and perceived exertion vary across 3 menstrual cycle phases: early follicular, late follicular, and mid-luteal in healthy, eumenorrheic women. Ten recreationally active women (22.7 ± 3.8 years) completed three 30-second Wingate anaerobic cycling tests during early follicular (1-4 days after the onset of menses), late follicular (1-3 days before predicted ovulation), and mid-luteal (6-9 days after predicted ovulation). Menstrual cycle phases were verified using ovulation test strips and self-reported tracking over 2 full cycles, with performance testing occurring during the third cycle. At each session, subjects completed a standardized warm-up followed by a Wingate test on a Velotron ergometer. Measured outcomes included peak power (W), mean power (W), anaerobic capacity (Wkg), fatigue index (%), and rating of perceived exertion. Data were analyzed using one-way repeated-measures ANOVAs. No differences were observed across menstrual phases for peak power ( p = 0.667, η2 = 0.044), mean power ( p = 0.236, η2 = 0.148), anaerobic capacity ( p = 0.817, η2 = 0.022), fatigue index ( p = 0.307, η2 = 0.033), or rating of perceived exertion ( p = 0.607, η2 = 0.054). While mean power demonstrated a large effect size, it did not reach statistical significance. These findings suggest that the menstrual cycle phase may not significantly influence short-duration anaerobic power output or perceived exertion. This may indicate that recreationally active women can perform high-intensity efforts such as the Wingate test consistently throughout their cycle. The results provide practical insights for athletes, coaches, and exercise professionals who design training programs for women, suggesting that phase-based modifications to anaerobic training may not be necessary for this population.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1223-1230"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147941889","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}