International journal of sports physiology and performance最新文献

{"title":"Passive Warm-up via Hot-Water Immersion Provides Similar Cycling Performance Benefits to Active Warm-up During a 12-Minute Cycling Time Trial.","authors":"Diego Jaén-Carrillo, Peter Leo, Laurin Krohn, Justin S Lawley, Robert P Lamberts, Patrick Rodrigues","doi":"10.1123/ijspp.2026-0278","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0278","url":null,"abstract":"<p><strong>Purpose: </strong>To determine whether passive warm-up via lower-limb hot-water immersion (HWI) at 42 °C produces 12-minute cycling time-trial (TT) performance comparable to active warm-up (AWU) in trained cyclists, and whether combining both strategies (HWI + AWU) confers additional benefit.</p><p><strong>Methods: </strong>Twenty-seven tier 2 to 3 cyclists (20 men and 7 women; age 25 [4] y; training volume 9 [3] h/wk) completed a randomized, crossover trial. Participants performed AWU, HWI (42 °C, 45 min), or HWI + AWU before a 12-minute TT. Power output, heart rate, muscle oxygen saturation, VO2/kg, VCO2/kg, respiratory exchange ratio, blood lactate, and rating of perceived exertion were measured.</p><p><strong>Results: </strong>Power output did not differ between conditions (AWU: 259 [52] W; HWI: 255 [53] W; HWI + AWU: 257 [53] W; P = .308), nor did heart rate, muscle oxygen saturation, VCO2/kg, or respiratory exchange ratio. VO2/kg was lower following HWI than AWU (P < .05), with a blunted response during the first 120 seconds and elevated VCO2/kg during the first 60 seconds, converging thereafter. Pre-TT blood lactate was lower in HWI (1.16 [0.42] mmol/L) than AWU (4.01 [1.63] mmol/L) and HWI + AWU (4.55 [1.75] mmol/L; P < .001). End-trial rating of perceived exertion was higher following HWI than AWU and HWI + AWU (P < .001).</p><p><strong>Conclusions: </strong>Lower-limb HWI at 42 °C for 45 minutes produces TT performance equivalent to a standardized AWU, with no additive benefit from combining strategies. These findings establish HWI as a viable preparatory alternative for high-intensity endurance cycling, particularly when conventional active preparation is constrained.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-9"},"PeriodicalIF":3.3,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149038519","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":"Incremental Swimming Test Provides Key Determinants of 200-m Front Crawl Race Performance.","authors":"Ioannis S Nikitakis, Michael Peyrebrune, Argyris G Toubekis","doi":"10.1123/ijspp.2026-0087","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0087","url":null,"abstract":"<p><strong>Purpose: </strong>This study examined whether lactate-derived indices were associated with 200-m front crawl race performance.</p><p><strong>Methods: </strong>Twenty-eight highly trained male swimmers (18.0 [3.2] y) performed a 7 × 200-m incremental step test, and the speed corresponding to lactate threshold (LT) was determined from the speed-lactate curve. The blood lactate increase speed (BLISLT-peak) was calculated as the ratio of the difference between blood lactate concentration at LT and peak blood lactate by the time required to complete the fastest 200-m repetition of the 7 × 200-m test. The rate of blood lactate increase from LT to the peak lactate value (BLrateLT-peak) was calculated by the slope of the corresponding points of the speed-lactate curve. Official 200-m race performance times were recorded and used as the dependent variable. Multiple linear regression was applied to assess the validity of BLISLT-peak and BLrateLT-peak as predictors of 200-m race performance.</p><p><strong>Results: </strong>The regression model, including speed corresponding to LT and BLISLT-peak, explained 74% of the performance variance. Inclusion of BLrateLT-peak increased explained variance to 80% (adjusted R2 = .77). In this model, LT speed (β = -0.78, P = .01), BLISLT-peak (β = -0.41, P = .01), and BLrateLT-peak (β = -0.31, P = .01) were all significant independent predictors.</p><p><strong>Conclusion: </strong>Lactate-derived indices from the incremental step test (LT speed, BLISLT-peak, and BLrateLT-peak) were associated with 200-m swimming performance, explaining 80% of the variance. These findings indicate that the protocol may have practical value for physiological profiling in 200-m swimmers.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-6"},"PeriodicalIF":3.3,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024803","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":"Enhancing Recovery in Soccer: A Scoping Review on Nutritional and Supplementation Strategies.","authors":"Diogo V Martinho, Filipe Manuel Clemente, Hugo Sarmento, Júlio A Costa, Mariana Vaz de Oliveira, Adam Field, André Rebelo, Nuno André Nunes, Maros Kalata, Frantisek Zahalka, Tomas Maly, Mateusz Gawełczyk, Karim Chamari","doi":"10.1123/ijspp.2025-0634","DOIUrl":"https://doi.org/10.1123/ijspp.2025-0634","url":null,"abstract":"<p><strong>Purpose: </strong>This scoping review aimed to synthesize and map the evidence on nutritional and supplementary strategies used to enhance postexercise recovery in soccer players. Specifically, it sought to (1) identify effective interventions across physical, physiological, perceptual, and biochemical outcomes; (2) describe methodological designs; and (3) highlight research gaps for future investigation.</p><p><strong>Methods: </strong>Following Cochrane and PRISMA-ScR guidelines, 4 databases (PubMed, Web of Science, Scopus, SportDiscus) were searched without date limits. Eligible studies included randomized controlled trials involving adult soccer players (≥18 y) that examined nutritional or supplementary interventions administered within 72 hours postmatch or after an exercise-induced muscle damage protocol. Data extraction, synthesis, and a risk-of-bias assessment were performed independently by 2 reviewers.</p><p><strong>Results: </strong>Eleven studies (n = 135 players) met inclusion criteria. Interventions included carbohydrates, proteins (casein, whey, and milk protein), tart cherry juice, curcumin, caffeine, and ketones. The most frequently assessed outcomes were physical (jumping, sprinting, and strength) and perceptual (muscle soreness, and well-being), while biochemical and physiological measures were less common. Curcumin (500 mg·d-1) and presleep casein supplementation (40 g) demonstrated beneficial effects on physical and perceptual recovery markers up to 36 hours postmatch in professional soccer players. In contrast, carbohydrates, caffeine, and milk protein showed inconsistent or negligible effects. Most studies (82%) presented a high risk of bias, small sample sizes, and heterogeneous methodologies.</p><p><strong>Conclusions: </strong>Current evidence on nutritional and supplementary recovery strategies in soccer is limited and methodologically weak. Curcumin and casein show the most promise for enhancing short-term recovery. Future research should include well-controlled trials with standardized protocols, larger samples, and inclusion of female players to inform evidence-based recovery nutrition in soccer.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-11"},"PeriodicalIF":3.3,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024845","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":"Reliability of Specific High-Intensity Interval Exercise Protocol for Judo Athletes.","authors":"Rafael Lima Kons, Daniele Detanico","doi":"10.1123/ijspp.2026-0275","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0275","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to examine the reliability of the high-intensity intermittent uchi-komi exercise protocol in judo athletes, considering the number of repetitions and rating of perceived exertion.</p><p><strong>Methods: </strong>Twenty-three male judo athletes performed the high-intensity intermittent uchi-komi protocol across 3 visits (1 familiarization and 2 testing sessions). The protocol consisted of 12 sets of 20-second all-out hikidashi movements interspersed with 10-second passive recovery. Repetitions per set and rating of perceived exertion (Borg 6-20) were recorded. Reliability was assessed using the intraclass correlation coefficient (ICC) and typical error of measurement.</p><p><strong>Results: </strong>The main results indicated predominantly moderate reliability across sets (ICC = .53-.72), with good reliability observed in SET4 and SET8 (ICC = .76-.77) and poor reliability in SET1 and SET12 (ICC = .46). Total repetitions showed moderate reliability (ICC = .75), as did rating of perceived exertion (ICC = .66). Typical error of measurement ranged from 1.89 to 3.50 repetitions across sets.</p><p><strong>Conclusions: </strong>These findings suggest that high-intensity intermittent uchi-komi exercise provides acceptable reliability for practical applications, particularly when total repetitions are considered, supporting its use in the monitoring and assessment of judo athletes.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-5"},"PeriodicalIF":3.3,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024848","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":"Characterizing Change-of-Direction Demands in Professional Soccer Match Play Using Deceleration and Acceleration Metrics.","authors":"Hugo Silva, Rui Marcelino, Adriano Lima-Alves, João Ribeiro, Thomas Dos'Santos","doi":"10.1123/ijspp.2026-0174","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0174","url":null,"abstract":"<p><strong>Purpose: </strong>This study characterized change-of-direction (COD) actions in professional soccer players using global navigation satellite systems data, with specific emphasis on COD angle and the associated deceleration (DEC) and re-acceleration (re-ACC) kinematics under match-play conditions.</p><p><strong>Methods: </strong>Data were collected from 52 professional soccer players (mean [SD]: age: 27.3 [5.2] y; body mass: 72.3 [6.9] kg; height: 178.6 [6.8] cm) across 14 official matches, resulting in 3048 individual COD events for analysis. Events were classified by COD angle (15° bins), and DEC and re-ACC phases were detected to extract kinematic variables. Associations between COD angle and selected variables were examined using contingency analyses, and linear mixed-effects models assessed the effects of angle and playing position.</p><p><strong>Results: </strong>CODs, on average, initiated from moderate entry speeds (14.9 km·h-1) and involved substantial braking demands (-4.2 m·s-2), followed by a short DEC-ACC interval (0.6 s) and a relatively low re-ACC magnitude (1.7 m·s-2). Contingency analyses revealed a significant association between COD angle and DEC entry speed (P = .026), with sharper angles showing a slightly greater proportion of moderate-to-high entry speeds. Mixed-effects identified a significant main effect of playing position on DEC entry speed (P = .035), with higher entry speeds for wide midfielders and forwards compared with central defenders.</p><p><strong>Conclusions: </strong>During soccer matches, CODs have intense braking and rapid DEC-re-ACC coupling despite predominantly submaximal entry and exit speeds. The results support the need for higher DEC thresholds, reflecting match play demands. Additionally, training strategies should account for both angle and entry-speed demands, while considering the playing position.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-9"},"PeriodicalIF":3.3,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024815","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":"Maximal Fat Oxidation Is Associated With Moderate- and High-Speed Running Performance During Competitive Matches in Youth National-Level Football Players: A Retrospective In-Season Study.","authors":"Pierre Hernot, Arthur Guillotel, Mathieu Horeau, Rufin Boumpoutou, Laurent Bessière, Sébastien Sangnier, David Martin, Frédéric Derbré","doi":"10.1123/ijspp.2026-0143","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0143","url":null,"abstract":"<p><strong>Purpose: </strong>This retrospective study investigated the relationships between maximal oxygen uptake (V˙O2max), maximal fat oxidation (MFO), maximal lower-limb power output (Pmax), and match running performance in youth national-level football players across a competitive season.</p><p><strong>Methods: </strong>During the preseason period, 41 youth national-level football players from the academy of a French Ligue 1 club completed a series of laboratory and field-based assessments. Incremental and fasted submaximal graded treadmill tests were performed to determine V˙O2max and MFO via indirect calorimetry, whereas a horizontal force-velocity-power profile was used to assess Pmax. Match running performance was monitored throughout the season using 10-Hz GPS. A nonlinear, decision tree modeling approach was then applied to identify discriminative thresholds in physiological variables that characterize distinct player profiles.</p><p><strong>Results: </strong>Among the 3 determinants of game performance examined, V˙O2max was the only variable linearly associated with total match distance (P < .01). In contrast, MFO was the sole predictor identified of distance covered at speed running >15 km·h-1 (P < .01), with a threshold of 0.73 g·min-1 distinguishing players covering greater moderate- to high-speed distances (P < .01).</p><p><strong>Conclusions: </strong>These results suggest that monitoring both V˙O2max and MFO are complementary for optimizing football players' match performance. While V˙O2max remains crucial for achieving a high total match distance in national-level players, MFO appears more strongly associated with the distance covered at moderate and high running speeds.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-5"},"PeriodicalIF":3.3,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982044","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":"Remote Ischemic Preconditioning Increases Maximal Accumulated Oxygen Deficit in Cross-Country Endurance Runners.","authors":"Bryant R Byrd, Gabriel D Sams, Graydon A Walker, Marcus A Lucero, Lance C Dalleck, Gary P Van Guilder, Andrew E Kilding","doi":"10.1123/ijspp.2025-0640","DOIUrl":"https://doi.org/10.1123/ijspp.2025-0640","url":null,"abstract":"<p><strong>Purpose: </strong>To test the hypothesis that remote ischemic preconditioning (IPC) improves severe intensity exercise performance in competitive cross-country endurance runners by increasing maximal accumulated oxygen deficit (AOD), an indicator of anaerobic capacity.</p><p><strong>Methods: </strong>A randomized sham-controlled crossover study was employed in which 14 competitive trained male cross-country athletes (peak oxygen uptake [V˙O2peak]: 62 [5] mL·kg-1·min-1) completed 3 maximal running trials (baseline, sham, remote IPC) at ∼110% V˙O2peak to their limit of tolerance. Remote IPC was induced with 4 × 5-minute cycles of brachial artery occlusion with 5 minutes of reperfusion. Maximal AOD (in milliliters per kilogram) and oxygen uptake (V˙O2) kinetics for each trial were derived from gas-exchange measures.</p><p><strong>Results: </strong>Remote IPC (146 [58] s, 95% CI, 112-181) significantly increased the running limit of tolerance by 12% compared with baseline (131 [47] s, 95% CI, 102-160, P = .01), and 17% versus sham (125 [44] s, 95% CI, 96-154, P = .002). Likewise, with remote IPC, maximal AOD was 58.4 (12.2) mL/kg (95% CI, 51.3-65.5), a substantial increase compared with baseline (45.5 [9.1] mL/kg, P < .001, 95% CI, 40.3-50.8) and sham (46.4 [7.1] mL/kg, P = .01, 95% CI, 42.3-50.5). Analysis of V˙O2 kinetics revealed that remote IPC did not change the phase II time constant, but increased mean response time (17.6 [5.1] s) compared with baseline (15.5 [3.8] s, P = .014) and sham (15.8 [3.2] s, P = .04).</p><p><strong>Conclusion: </strong>Remote IPC improved running performance in men cross-country athletes. Greater anaerobic capacity, as estimated by increased maximal AOD, may contribute to these performance improvements. Coaches and athletes may consider incorporating IPC into precompetition warm-ups to enhanced running tolerance and anaerobic capacity in trained runners.</p>","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1-9"},"PeriodicalIF":3.3,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148955878","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":"Benefits of Early Morning Exercise.","authors":"Jos J de Koning","doi":"10.1123/ijspp.2026-0453","DOIUrl":"10.1123/ijspp.2026-0453","url":null,"abstract":"","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1097"},"PeriodicalIF":3.3,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148944640","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":"Comment on Nimmerichter et al: Exercise Intensity but Not Cadence Affects the Dynamics of Muscle Oxygenation and Pulmonary Oxygen Uptake at the Onset of Exercise.","authors":"Ricardo D de Lucas, Luis Antonio P de Lima","doi":"10.1123/ijspp.2026-0328","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0328","url":null,"abstract":"","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1"},"PeriodicalIF":3.3,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919164","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":"Response to de Lucas and de Lima Comment on Nimmerichter et al: Exercise Intensity but not Cadence Affects the Dynamics of Muscle Oxygenation and Pulmonary Oxygen Uptake at the Onset of Exercise.","authors":"Alfred Nimmerichter, Matthias Hovorka, Sandro Jennewein, Stefan Soelkner, Bernhard Prinz","doi":"10.1123/ijspp.2026-0392","DOIUrl":"https://doi.org/10.1123/ijspp.2026-0392","url":null,"abstract":"","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1"},"PeriodicalIF":3.3,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919509","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}