Relationship between Classic Physiological Variables and Running Performance in Recreational Runners

Abstract

The purpose of this study was to investigate the relationship between classic physiological variables [maximal oxygen uptake (_VO 2 max), z _VO 2 max at anaerobic threshold (AT), and running economy (RE)] and running performance in recreational runners. 39 recreational runners (24 males and 15 females) underwent a treadmill running test to determine the classic physiological variables and velocity at AT (vAT). AT was deˆned as the point at which the respiratory exchange ratio stabilized above 1.0, and it was used as an indirect performance variable. Multiple regression analysis showed that 94z of vAT values were explained by all classic physiological variables (p＜0.001). In addition, all variables were signiˆcantly explanatory (_VO 2 max, p＜ 0.001; z _VO 2 max at AT, p＜0.001; and RE, p＜0.001). In total, 35 subjects had completed a marathon within the past year. For these subjects, single regression analysis was performed, which showed that 67z of recent marathon times was explained by vAT (r＝0.82, p＜0.05). This study indicated that during a treadmill running test, _VO 2 max, z _VO 2 max at AT, and RE can precisely explain vAT, which is highly correlated with recent marathon times.

Relationship between oxygen cost and C-reactive protein response to marathon running in college recreational runners

“…VO 2 max and running economy were recognized as the main physiological factors determining marathon running performance. Of the two factors, VO 2 max had the larger impact in heterogeneous performance runners,9 supported by the present result showing the relationship between aerobic fitness and race time (Table 1). Several studies have investi gated the relationship between VO 2 max and CRP response after acute exercise 3,17.…”

“…The treadmill running test was performed on a motorized treadmill (ORK-7000; Ohtake-Root Kogyo Co, Iwate, Japan) set at 1% gradient according to previous studies 9,16. This test consisted of a running economy test and a maximal incremental test.…”

“…In this report, however, race time was used as a measure of physical fitness and no objective aerobic fitness markers were assessed. It is well known that endurance race performance is closely related to maximal oxygen uptake (VO 2 max) and running economy, which is defined as steady-state oxygen cost (O 2 cost) 9. In particular, the running economy is closely related to energy expenditure during the marathon race since the runner generates energy based on the oxygen consumption 10.…”

The relationship between running performance in the Olympic-distance triathlon and aerobic physiological variables, focusing on the 3 factors of the classic model

“…However, in an actual ODT race, the relationship between the three factors of the classic model and running performance may weaken owing to the residual effects of prior swimming and cycling. McLaughlin et al, 2010;Takayama et al, 2018;Tjelta et al, 2012 (Costill et al, 1973;di Prampero et al, 1986;McLaughlin et al, 2010 (Conley and Krahenbuhl, 1980;Morgan et al, 1989) (Delextrat et al, 2003;Hausswirth et al, 2001)やペース戦略 (Peeling et al, 2005;Suriano and Bishop, 2010a) といった運動強度に関わる要因や，バイク中のペダル回転数の選択 (Vercruyssen et al, 2002 (Beaver et al, 1986;LourenÇo et al, 2011 (Costill et al, 1973;di Prampero et al, 1986;McLaughlin et al, 2010) Bernard et al, 2009;Cox et al, 2010;Vercruyssen et al, 2002;Vleck et al, 2006) ．そして，上記した要因は，その後のランの パフォーマンスにそれぞれ異なる影響を与える (Delextrat et al, 2003;Hausswirth et al, 2001;McGawley et al, 2012;Peeling et al, 2005;Suriano and Bishop, 2010a;Vercruyssen et al, 2002) Values are expressed as mean±SD and CV (%). Table 2 Race day conditions for study I.…”

Effects of marathon races on physical condition

“…と表記している．これに対し， 3 時間以上 のランナーを対象とした報告では「recreational run-ner」 10-12, 16,18) ， 「amateur runner」 21) もしくは「non-elite runner」 22 25,28) あるいは換気性閾値 (Ventilatory threshold : VT)の走速度(velocity at VT : vVT) 16,35) とマラソンレースの記録との関係を検討した多くの先 行研究が両者の間に強い相関関係を認めている．また， Vmax も生理学的指標を反映した指標であり 36 16,18,41,46,49) (…”