Pedro Silva Oliveira, Giorjines Boppre, Hélder Fonseca
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PubMed, Scopus, and Web of Science were searched up to 20 October 2022 for studies in adults and young adults for ≥ 4 weeks comparing POL with other TID interventions regarding VO<sub>2</sub>peak, time-trial (TT), time to exhaustion (TTE) or speed or power at the second ventilatory or lactate threshold (V/P at VT<sub>2</sub>/LT<sub>2</sub>). Risk of bias was assessed with RoB-2 and ROBINS-I. Certainty of evidence was assessed with GRADE. Results were analyzed by random effects meta-analysis using standardized mean differences.</p><p><strong>Results: </strong>Seventeen studies met the inclusion criteria (n = 437 subjects). Pooled effect estimates suggest POL superiority for improving VO<sub>2</sub>peak (SMD = 0.24 [95% CI 0.01, 0.48]; z = 2.02 (p = 0.040); 11 studies, n = 284; I<sup>2</sup> = 0%; high certainty of evidence). Superiority, however, only occurred in shorter interventions (< 12 weeks) (SMD = 0.40 [95% CI 0.08, 0.71; z = 2.49 (p = 0.01); n = 163; I<sup>2</sup> = 0%) and for highly trained athletes (SMD = 0.46 [95% CI 0.10, 0.82]; z = 2.51 (p = 0.01); n = 125; I<sup>2</sup> = 0%). The remaining endurance performance surrogates were similarly affected by POL and other TIDs: TT (SMD = - 0.01 [95% CI -0.28, 0.25]; z = - 0.10 (p = 0.92); n = 221; I<sup>2</sup> = 0%), TTE (SMD = 0.30 [95% CI - 0.20, 0.79]; z = 1.18 (p = 0.24); n = 66; I<sup>2</sup> = 0%) and V/P VT<sub>2</sub>/LT<sub>2</sub> (SMD = 0.04 [95% CI -0.21, 0.29]; z = 0.32 (p = 0.75); n = 253; I<sup>2</sup> = 0%). Risk of bias for randomized controlled trials was rated as of some concern and for non-randomized controlled trials as low risk of bias (two studies) and some concerns (one study).</p><p><strong>Conclusions: </strong>POL is superior to other TIDs for improving VO<sub>2</sub>peak, particularly in shorter duration interventions and highly trained athletes. However, the effect of POL was similar to that of other TIDs on the remaining surrogates of endurance performance. The results suggest that POL more effectively improves aerobic power but is similar to other TIDs for improving aerobic capacity.</p>","PeriodicalId":21969,"journal":{"name":"Sports Medicine","volume":" ","pages":"2071-2095"},"PeriodicalIF":9.3000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329428/pdf/","citationCount":"0","resultStr":"{\"title\":\"Comparison of Polarized Versus Other Types of Endurance Training Intensity Distribution on Athletes' Endurance Performance: A Systematic Review with Meta-analysis.\",\"authors\":\"Pedro Silva Oliveira, Giorjines Boppre, Hélder Fonseca\",\"doi\":\"10.1007/s40279-024-02034-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Polarized training intensity distribution (POL) was recently suggested to be superior to other training intensity distribution (TID) regimens for endurance performance improvement.</p><p><strong>Objective: </strong>We aimed to systematically review and meta-analyze evidence comparing POL to other TIDs on endurance performance.</p><p><strong>Methods: </strong>PRISMA guidelines were followed. The protocol was registered at PROSPERO (CRD42022365117). PubMed, Scopus, and Web of Science were searched up to 20 October 2022 for studies in adults and young adults for ≥ 4 weeks comparing POL with other TID interventions regarding VO<sub>2</sub>peak, time-trial (TT), time to exhaustion (TTE) or speed or power at the second ventilatory or lactate threshold (V/P at VT<sub>2</sub>/LT<sub>2</sub>). Risk of bias was assessed with RoB-2 and ROBINS-I. Certainty of evidence was assessed with GRADE. Results were analyzed by random effects meta-analysis using standardized mean differences.</p><p><strong>Results: </strong>Seventeen studies met the inclusion criteria (n = 437 subjects). Pooled effect estimates suggest POL superiority for improving VO<sub>2</sub>peak (SMD = 0.24 [95% CI 0.01, 0.48]; z = 2.02 (p = 0.040); 11 studies, n = 284; I<sup>2</sup> = 0%; high certainty of evidence). 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引用次数: 0
摘要
背景：极化训练强度分布（POL）最近被认为在提高耐力表现方面优于其他训练强度分布（TID）方案：目的：我们旨在系统回顾和荟萃分析 POL 与其他 TID 在耐力表现方面的比较证据：方法：遵循 PRISMA 指南。研究方案已在 PROSPERO（CRD42022365117）上注册。截止到 2022 年 10 月 20 日，在 PubMed、Scopus 和 Web of Science 上检索了成人和青壮年在≥ 4 周的时间内比较 POL 与其他 TID 干预措施在 VO2 峰、时间试验（TT）、力竭时间（TTE）或第二通气或乳酸阈值（VT2/LT2 时的 V/P）方面的速度或功率的研究。偏倚风险采用 RoB-2 和 ROBINS-I 进行评估。证据的确定性采用 GRADE 进行评估。结果采用标准化均值差异随机效应荟萃分析法进行分析：结果：17 项研究符合纳入标准（n = 437 例受试者）。汇总效应估计值表明，POL 在提高 VO2peak 方面具有优势（SMD = 0.24 [95% CI 0.01, 0.48]；z = 2.02 (p = 0.040)；11 项研究，n = 284；I2 = 0%；证据高度确定性）。然而，优越性仅出现在较短的干预（2 = 0%）和训练有素的运动员中（SMD = 0.46 [95% CI 0.10, 0.82]；z = 2.51 (p = 0.01)；n = 125；I2 = 0%）。POL 和其他 TID 对其余耐力代用指标的影响类似：TT（SMD = - 0.01 [95% CI -0.28, 0.25]；z = - 0.10 (p = 0.92)；n = 221；I2 = 0%）、TTE（SMD = 0.30 [95% CI - 0.20, 0.79]；z = 1.18 (p = 0.24); n = 66; I2 = 0%) 和 V/P VT2/LT2 (SMD = 0.04 [95% CI -0.21, 0.29]; z = 0.32 (p = 0.75); n = 253; I2 = 0%)。随机对照试验的偏倚风险被评为令人担忧，非随机对照试验的偏倚风险被评为低风险（两项研究）和令人担忧（一项研究）：结论：POL 在提高 VO2 峰值方面优于其他 TID，尤其是在短时间干预和训练有素的运动员中。然而，POL 对其他耐力表现代用指标的影响与其他 TID 相似。结果表明，POL 能更有效地提高有氧功率，但在提高有氧能力方面与其他 TID 相似。
Comparison of Polarized Versus Other Types of Endurance Training Intensity Distribution on Athletes' Endurance Performance: A Systematic Review with Meta-analysis.
Background: Polarized training intensity distribution (POL) was recently suggested to be superior to other training intensity distribution (TID) regimens for endurance performance improvement.
Objective: We aimed to systematically review and meta-analyze evidence comparing POL to other TIDs on endurance performance.
Methods: PRISMA guidelines were followed. The protocol was registered at PROSPERO (CRD42022365117). PubMed, Scopus, and Web of Science were searched up to 20 October 2022 for studies in adults and young adults for ≥ 4 weeks comparing POL with other TID interventions regarding VO2peak, time-trial (TT), time to exhaustion (TTE) or speed or power at the second ventilatory or lactate threshold (V/P at VT2/LT2). Risk of bias was assessed with RoB-2 and ROBINS-I. Certainty of evidence was assessed with GRADE. Results were analyzed by random effects meta-analysis using standardized mean differences.
Results: Seventeen studies met the inclusion criteria (n = 437 subjects). Pooled effect estimates suggest POL superiority for improving VO2peak (SMD = 0.24 [95% CI 0.01, 0.48]; z = 2.02 (p = 0.040); 11 studies, n = 284; I2 = 0%; high certainty of evidence). Superiority, however, only occurred in shorter interventions (< 12 weeks) (SMD = 0.40 [95% CI 0.08, 0.71; z = 2.49 (p = 0.01); n = 163; I2 = 0%) and for highly trained athletes (SMD = 0.46 [95% CI 0.10, 0.82]; z = 2.51 (p = 0.01); n = 125; I2 = 0%). The remaining endurance performance surrogates were similarly affected by POL and other TIDs: TT (SMD = - 0.01 [95% CI -0.28, 0.25]; z = - 0.10 (p = 0.92); n = 221; I2 = 0%), TTE (SMD = 0.30 [95% CI - 0.20, 0.79]; z = 1.18 (p = 0.24); n = 66; I2 = 0%) and V/P VT2/LT2 (SMD = 0.04 [95% CI -0.21, 0.29]; z = 0.32 (p = 0.75); n = 253; I2 = 0%). Risk of bias for randomized controlled trials was rated as of some concern and for non-randomized controlled trials as low risk of bias (two studies) and some concerns (one study).
Conclusions: POL is superior to other TIDs for improving VO2peak, particularly in shorter duration interventions and highly trained athletes. However, the effect of POL was similar to that of other TIDs on the remaining surrogates of endurance performance. The results suggest that POL more effectively improves aerobic power but is similar to other TIDs for improving aerobic capacity.
期刊介绍：
Sports Medicine focuses on providing definitive and comprehensive review articles that interpret and evaluate current literature, aiming to offer insights into research findings in the sports medicine and exercise field. The journal covers major topics such as sports medicine and sports science, medical syndromes associated with sport and exercise, clinical medicine's role in injury prevention and treatment, exercise for rehabilitation and health, and the application of physiological and biomechanical principles to specific sports.
Types of Articles:
Review Articles: Definitive and comprehensive reviews that interpret and evaluate current literature to provide rationale for and application of research findings.
Leading/Current Opinion Articles: Overviews of contentious or emerging issues in the field.
Original Research Articles: High-quality research articles.
Enhanced Features: Additional features like slide sets, videos, and animations aimed at increasing the visibility, readership, and educational value of the journal's content.
Plain Language Summaries: Summaries accompanying articles to assist readers in understanding important medical advances.
Peer Review Process:
All manuscripts undergo peer review by international experts to ensure quality and rigor. The journal also welcomes Letters to the Editor, which will be considered for publication.
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