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Titolo:
Comparison of muscle oxygen consumption measured by near infrared continuous wave spectroscopy during supramaximal and intermittent pedalling exercise
Autore:
Bae, SY; Hamaoka, T; Katsumura, T; Shiga, T; Ohno, H; Haga, S;
Indirizzi:
Univ Tsukuba, Inst Hlth & Sport Sci, Tsukuba, Ibaraki 3058574, Japan Univ Tsukuba Tsukuba Ibaraki Japan 3058574 sukuba, Ibaraki 3058574, Japan Tokyo Med Univ, Dept Prevent Med & Publ Hlth, Shinjuku Ku, Tokyo, Japan Tokyo Med Univ Tokyo Japan t Med & Publ Hlth, Shinjuku Ku, Tokyo, Japan Omron Inst Life Sci Co Ltd, Ukyo Ku, Kyoto, Japan Omron Inst Life Sci Co Ltd Kyoto Japan ci Co Ltd, Ukyo Ku, Kyoto, Japan Natl Def Med Coll, Dept Hyg, Tokorozawa, Saitama 359, Japan Natl Def Med Coll Tokorozawa Saitama Japan 359 rozawa, Saitama 359, Japan
Titolo Testata:
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
fascicolo: 3, volume: 21, anno: 2000,
pagine: 168 - 174
SICI:
0172-4622(200004)21:3<168:COMOCM>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
METABOLISM; ERGOMETER; SYSTEMS; SPRINT; HUMANS; WORK;
Keywords:
NIRcws; oxygenation; Wingate anaerobic test; oxygen consumption; arterial occlusion; supramaximal exercise;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Bae, SY Univ Tsukuba, Inst Hlth & Sport Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058574, Japan Univ Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki Japan 3058574 4, Japan
Citazione:
S.Y. Bae et al., "Comparison of muscle oxygen consumption measured by near infrared continuous wave spectroscopy during supramaximal and intermittent pedalling exercise", INT J SP M, 21(3), 2000, pp. 168-174

Abstract

The two purposes of the present study were 1) to determine the oxygen consumption in working skeletal muscle from the oxygenation measured by near-infrared continuous-wave spectroscopy (NIRcws) with the arterial occlusion method during the resting condition, INTVT and INTMAX and 2) to examine whether the decline rate of oxygenation is related to maximal oxygen uptake. Eight healthy males (aged 19.8 +/- 0.4 yr, height 166.9 +/- 17.4 cm, weight 62.1 +/- 2.5 kg, and maximal oxygen uptake [(V) over dot O(2)max] 55.9 +/- 1.9 ml/kg.min(-1)) took part in this study. The oxygenation was measured by NIRcws during the Wingate anaerobic test (WAnT) and two intermittent pedalling exercises of VT (INTVT) and maximal (INTMAX) work intensity. The declinerates of oxygenation obtained during the resting condition, INTVT and INT(MAX)with arterial occlusion were 0.43 +/- 0.05%/sec, 4.94 +/- 0.31%/sec, and 8.16 +/- 0.38%/sec, respectively, and that during the WAnT without arterial occlusion was 8.73 +/- 0.49%/sec. The decline rate of oxygenation duringthe WAnT was significantly (p < 0.0001) related to maximal oxygen uptake ((V) over dot O-2-max). These findings indicate that O-2 is utilized from the early phase, even during a supramaximal pedalling exercise, and that the oxidative metabolic capacity may be a factor contributing to supramaximal exercises. Therefore the arterial occlusion method with NIRcws is suitable for the evaluation of the muscle O-2 consumption during exercise noninvasively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 07:09:29