Higher Eccentric Strength Mitigates Deceleration Performance Decline During Repeated Deceleration Tasks.
Purpose: This study aimed to (1) examine the relationship between eccentric strength and the ability to maintain deceleration performance following running, (2) investigate changes in deceleration kinematics during repeated deceleration tasks, and (3) explore associations between the changes in lowe...
| Publicado en: | International Journal of Sports Physiology & Performance Vol. 21; no. 8; pp. 950 - 958 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Aug2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=195788341&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 195788341 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15550265 16IB jtl: International Journal of Sports Physiology & Performance issn: 15550265 maglogo: N pubinfo: dt: Aug2026 vid: 21 iid: 8 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 195788341 195788341 195788341 10.1123/ijspp.2025-0242 195788341 ppf: 950 ppct: 8 formats: tig: atl: Higher Eccentric Strength Mitigates Deceleration Performance Decline During Repeated Deceleration Tasks. aug: au: Nakata, Kaito Uthoff, Aaron Hirayama, Kuniaki affil: Graduate School of Sport Sciences, Waseda University, Saitama, Japan sug: subj: Acceleration Athletic Performance Evaluation Lower Extremity Physiology Muscle Strength Evaluation Muscle, Skeletal Physiology Running Physiology Kinematics Evaluation Jumping Human Male Young Adult Funding Source Task Performance and Analysis Biomechanics Athletes, Male Squatting T-Tests Correlational Studies Exercise Test Fatigue Students, College Quantitative Studies Japan Goniometry Pearson's Correlation Coefficient Descriptive Statistics Data Analysis Software Male ab: Purpose: This study aimed to (1) examine the relationship between eccentric strength and the ability to maintain deceleration performance following running, (2) investigate changes in deceleration kinematics during repeated deceleration tasks, and (3) explore associations between the changes in lower-limb mechanical capacities during jump tests and deceleration capacity under load. Methods: Twenty male athletes participated. Maximal eccentric and concentric strength were assessed via back squat protocols. Participants completed the repeated acceleration–deceleration task consisting of 50 repetitions of a 10-m run followed by maximal deceleration with 45-second rest between repetitions. The ability to sustain deceleration performance was quantified as percentage change in deceleration metrics between the averaged first and last 5 repetitions. Several jump tests were performed before and after the repeated acceleration–deceleration task. Results: Paired t-test showed repeated decelerations significantly increased time from peak to half-peak velocity (TT50%VPeak) (+2.55%, P =.014, d = −0.60) and decreased deceleration in this phase (DECEarly) (−3.71%, P =.012, d = −0.62). Correlational analyses revealed that eccentric strength was significantly associated with changes in TT50%VPeak (P <.01, r = −.59) and DECEarly (P =.012, r =.55). Changes in DECEarly were significantly correlated with changes in power during squat jump (P <.05, r =.53). Conclusions: Repeated deceleration actions impair early-phase deceleration performance; however, greater eccentric strength mitigates this decline. Additionally, the ability to sustain concentric mechanical capacities appears relevant to sustaining deceleration capacity. These findings highlight the importance of eccentric strength in supporting performance under repeated high-load deceleration demands. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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