دورية أكاديمية
أعرض في EDS

Low-Volume Speed Endurance Training with Reduced Volume Improves Short-Term Exercise Performance in Highly Trained Cyclists.

التفاصيل البيبلوغرافية
العنوان: Low-Volume Speed Endurance Training with Reduced Volume Improves Short-Term Exercise Performance in Highly Trained Cyclists.
المؤلفون: Jeppesen JS; The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports (NEXS), University of Copenhagen, Copenhagen, DENMARK., Wickham KA, Zeuthen M, Thomassen M, Jessen S, Hellsten Y, Hostrup M, Bangsbo J
المصدر: Medicine and science in sports and exercise [Med Sci Sports Exerc] 2024 Sep 01; Vol. 56 (9), pp. 1709-1721. Date of Electronic Publication: 2024 Apr 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 8005433 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1530-0315 (Electronic) Linking ISSN: 01959131 NLM ISO Abbreviation: Med Sci Sports Exerc Subsets: MEDLINE
أسماء مطبوعة: Publication: Hagerstown, Md : Lippincott Williams & Wilkins
Original Publication: Madison, Wis., American College of Sports Medicine.
مواضيع طبية MeSH: Bicycling*/physiology , Endurance Training*/methods , Oxygen Consumption*/physiology , Athletic Performance*/physiology , Mitochondria, Muscle*/metabolism, Humans ; Male ; Adult ; Muscle, Skeletal/physiology ; Muscle, Skeletal/metabolism ; Physical Endurance/physiology ; Young Adult ; Quadriceps Muscle/physiology ; Quadriceps Muscle/metabolism ; Citrate (si)-Synthase/metabolism
مستخلص: Purpose: We investigated the effects of low- and high-volume speed endurance training (SET), with a reduced training volume, on sprint ability, short- and long-term exercise capacity, muscle mitochondrial properties, ion transport proteins, and maximal enzyme activity in highly trained athletes.
Methods: Highly trained male cyclists (maximal oxygen consumption (V̇O 2max ): 68.3 ± 5.0 mL·min -1 ·kg -1 , n = 24) completed 6 wk of either low (SET-L; 6 × 30-s intervals, n = 8) or high (SET-H; 12 × 30-s intervals, n = 8) volume SET twice per week with a 30% reduction in training volume. A control group (CON; n = 8) maintained their training. Exercise performance was evaluated by i) 6-s sprinting, ii) a 4-min time trial, and iii) a 60-min preload at 60% V̇O 2max followed by a 20-min time trial. A biopsy of m. vastus lateralis was collected before and after the training intervention.
Results: In SET-L, 4-min time trial performance was improved ( P < 0.05) by 3.8%, with no change in SET-H and CON. Sprint ability, prolonged endurance exercise capacity, V̇O 2max , muscle mitochondrial respiratory capacity, maximal citrate synthase activity, fiber type-specific mitochondrial proteins (complexes I-V), and phosphofructokinase (PFK) content did not change in any of the groups. In SET-H, maximal activity of muscle PFK and abundance of Na + -K + pump-subunit α 1 , α 2 , β 1 , and phospholemman (FXYD1) were 20%, 50%, 19%, 24%, and 42% higher ( P < 0.05), respectively after compared with before the intervention, with no changes in SET-L or CON.
Conclusions: Low SET volume combined with a reduced aerobic low- and moderate-intensity training volume does improve short-duration intense exercise performance and maintain sprinting ability, V̇O 2max , endurance exercise performance, and muscle oxidative capacity, whereas, high volume of SET seems necessary to upregulate muscle ion transporter content and maximal PFK activity in highly trained cyclists.
(Copyright © 2024 by the American College of Sports Medicine.)
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المشرفين على المادة: EC 2.3.3.1 (Citrate (si)-Synthase)
تواريخ الأحداث: Date Created: 20240423 Date Completed: 20240815 Latest Revision: 20240816
رمز التحديث: 20240816
DOI: 10.1249/MSS.0000000000003453
PMID: 38650113
قاعدة البيانات: MEDLINE
الوصف
تدمد:1530-0315
DOI:10.1249/MSS.0000000000003453