Relationships between longitudinal changes in physiological capacities and running performance in 800-m runners

• Tanji Fumiya

  Department of Sport Research, Japan Institute of Sport Sciences

• Nabekura Yoshiharu

  Faculty of Health and Sport Sciences, University of Tsukuba

Bibliographic Information

Other Title

• 800mランナーの生理学的変数と走パフォーマンスの縦断的変化の関係

Abstract

    We aim to clarify relationships between longitudinal changes in aerobic and anaerobic energy metabolism capacities and training in well-trained 800-m runners, and to identify strategies for effective 800-m training. Eight male middle-distance runners (800-m seasonal best time, 1′53″7±1″6) participated. Their 800-m running performances were set the best competition time in April-June and July-November, and calculated average running velocity. Three running tests on a treadmill were conducted to determine aerobic (maximal oxygen uptake [VO₂max], lactate threshold [LT] and running economy [RE]) and anaerobic (maximal accumulated oxygen deficit [MAOD] and maximal blood lactate accumulation [LAmax]) energy metabolism capacities in July and November. Δ (％) represents changes in 800-m running performance and aerobic and anaerobic energy metabolism capacities. Training during this period was used to evaluate length of training time, and training ratio by three intensities; below the LT (zone 1), at or above the LT and below the VO₂ max (zone 2) and at or above the VO₂max (zone 3). Δ800-m running performance showed a positive tendency relationship with ΔRE and ΔLAmax ( r＝0.67 and 0.70, respectively), and a negative tendency relationship with zone 1 training ratio (r＝－0.70). Further, ΔRE and ΔLAmax were negatively associated with zone 1 training ratio (r＝－0.90 and －0.79, respectively), and positive associated with zone 3 training ratio (r＝0.79 and 0.75, respectively). Thus, improved RE and/or LAmax may improve 800-m running performance, and increasing high-intensity (>VO₂max) training during a competitive period can improve these energy metabolism capacities.

Journal

• The Japan Journal of Coaching Studies

  The Japan Journal of Coaching Studies 32 (1), 79-88, 2018-10-20

  The Japan Journal of Coaching Studies

Keywords

• 800-m running performance
• energy metabolism capacity
• training
• competitive term
• high-intensity

Details

• CRID: 1390564227298483328
• NII Article ID: 130007701072
• DOI: 10.24776/jcoaching.32.1_79
• ISSN: 24340510
• ISSN: 21851646
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed