Sports medicine (Auckland, N.Z.) · 2026 · 系統性回顧＋統合分析（依標題推測）

Acute and Chronic Effects of Accentuated Eccentric Loading vs. Constant-Load Resistance Training: A Systematic Review and Meta-analysis

訓練方法與運動處方 · 阻力訓練

中文閱讀摘要

系統性回顧與統合分析顯示，加重離心負荷與恆定負荷阻力訓練在急慢性適應上多無顯著差異，僅部分急性生理指標有差異。

AI 依來源摘要整理，未經人工逐篇核對。閱讀結論前，請回溯研究族群、方法與限制。

原始摘要

Background

Accentuated eccentric loading (AEL) is a resistance training (RT) method applying greater eccentric- than concentric-phase load to intensify the training stimulus; however, despite its common use, a comprehensive and quantitative review remains lacking.

Objective

The aim was to compare acute responses and chronic adaptations between AEL and constant-load RT, and examine whether effects vary by AEL protocol (submaximal, maximal, supramaximal).

Methods

PubMed, Web of Science, Embase, and EBSCO were searched from inception through July 3, 2024; eligible English-language studies were included. Pooled and subgroup meta-analyses were performed using random-effects models.

Results

Forty-nine studies involving 773 participants were included. Although considerable variance exists in certain outcomes, our estimated effects suggest that, compared to constant-load RT, AEL results in (1) similar acute responses in loads lifted during the concentric phase (standardized mean difference [SMD] = - 0.16; p = 0.48), mechanical performance at submaximal loads during the concentric phase (SMD = - 0.07; p = 0.37), countermovement jump height both immediately (SMD = - 0.06; p = 0.86) and delayed (SMD = - 0.23; p = 0.44) post-intervention, maximal voluntary isometric force immediately post-intervention (SMD = 0.03; p = 0.89), blood lactate concentration during the intervention (SMD = - 0.06; p = 0.78), testosterone concentration immediately post-intervention (SMD = 0.68; p = 0.15), creatine kinase concentration both immediately (SMD = 0.09; p = 0.72) and delayed (SMD = 0.14; p = 0.48) post-intervention, cortisol concentration immediately post-intervention (SMD = 0.39; p = 0.05), heart rate during the intervention (SMD = 1.18; p = 0.07), acute muscle swelling immediately post-intervention (SMD = 0.26; p = 0.42), muscle electrical activity during the concentric phase (SMD = - 0.01; p = 0.90), and muscle soreness both immediately (SMD = 0.28; p = 0.30) and delayed (SMD = 0.18; p = 0.28) post-intervention; (2) greater acute responses in blood lactate concentration immediately post-intervention (SMD = 0.44; p = 0.03), growth hormone concentration immediately post-intervention (SMD = 0.50; p = 0.01), muscle electrical activity during the eccentric phase (SMD = 0.37; p = 0.01), and rating of perceived exertion immediately post-intervention (SMD = 1.72; p = 0.01); (3) similar chronic adaptations in maximal concentric strength (SMD = 0.12; p = 0.41), maximal eccentric strength (SMD = 0.19; p = 0.58), maximal isometric strength (SMD = 0.03; p = 0.93), countermovement jump height (SMD = 0.04; p = 0.87), muscle fascicle angle (SMD = - 0.10; p = 0.77), muscle fascicle length (SMD = 0.90; p = 0.17), and muscle cross-sectional area (SMD = - 0.06; p = 0.84).

Conclusion

While AEL augments the eccentric-phase stimulus (higher eccentric load and muscle electrical activity), it also increases metabolic stress and perceived effort, implying a need for longer, more frequent inter-set rests and longer between-session recovery. Given the lack of evidence for superior chronic benefits in strength or muscle architecture over constant-load RT, practitioners should consider these factors carefully.

Protocol registration

The original protocol for this review was prospectively registered with the International Prospective Register of Systematic Reviews (PROSPERO) in July 2024 (CRD42024561673).

至 Europe PMC 閱讀完整來源 ↗ · 擷取日期 2026-10-19

書目、來源與全文狀態

DOI: 10.1007/s40279-026-02422-7
PMID／PMCID: 41945297 / PMC13388742
作者: Zhang X, Weakley J, Li H, Marcos-Frutos D, García-Ramos A
首次發表日期: 2026-04-07Europe PMC 提供，部分日期可能依年份或月份推定。
卷／期／頁碼或文章編號: 56 ／ 7 ／ 1749-1770
書目來源與查核日期: Europe PMC · 2026-10-19僅核對書目欄位與來源連結；不代表已評讀研究品質。
全文與授權: 來源列有免費全文（查核 2026-10-19），未逐篇測試 PDF 下載。來源授權標示：cc by。

可回溯引用

Zhang X, Weakley J, Li H, Marcos-Frutos D, García-Ramos A. Acute and Chronic Effects of Accentuated Eccentric Loading vs. Constant-Load Resistance Training: A Systematic Review and Meta-analysis. Sports medicine (Auckland, N.Z.). 2026;56(7):1749-1770. PMID: 41945297. PMCID: PMC13388742. doi:10.1007/s40279-026-02422-7

原始文獻 ↗來源列出的免費全文 ↗

本站供教育與研究參考。單篇摘要、文體標籤與期刊影響係數不等於證據品質或個別病人的診療建議。