Výsledky vyhledávání - "R K, Hetzler"

Physiological and biomechanical differences between wheelchair-dependent and able-bodied subjects during wheelchair ergometry

Autor: Joseph Hamill, Ronald G. Knowlton, R. K. Hetzler, Teresa L. Schneider, Dale D. Brown

Publikováno v: European Journal of Applied Physiology and Occupational Physiology. 60:179-182

The purpose of this study was to compare the physiological and biomechanical responses of wheelchair-dependent persons (WCD) to able-bodied persons (AB) during manual wheelchair ergometry. Five WCD and five AB performed a discontinuous wheelchair erg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1030fcfc944c7e57257fe105e2049205
https://doi.org/10.1007/bf00839155

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Anthropometric characteristics and performance related predictors of success in adolescent pole vaulters

Autor: J J, Sullivan, R G, Knowlton, R K, Hetzler, P L, Woelke

Publikováno v: The Journal of sports medicine and physical fitness. 34(2)

The purpose of this study was to determine the anthropometric characteristics of skilled adolescent pole vaulters and to examine the strength of anthropometric and physical performance variables in predicting vaulting performance (N = 87; age group r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e1e405734201ea01f6d15ec94e7abc43
https://pubmed.ncbi.nlm.nih.gov/7967587

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Effects of acute caffeine withdrawal on habituated male runners

Autor: N. Warhaftig-Glynn, R. K. Hetzler, Dixie L. Thompson, E. Dowling, Arthur Weltman

Publikováno v: Scopus-Elsevier

This study investigated the effects of caffeine withdrawal on six trained caffeine-habituated male runners: age 29.8 +/- 5.8 (SD) yr, height 180.4 +/- 5.4 cm, weight 77.3 +/- 6.7 kg, maximal O2 uptake 63.0 +/- 5.4 ml.kg-1.min-1, and daily caffeine in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b723f3d94043d30976f5f9a8aba23fcc
https://pubmed.ncbi.nlm.nih.gov/8005843

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Effect of exercise modality on ratings of perceived exertion at various lactate concentrations

Autor: R K, Hetzler, R L, Seip, S H, Boutcher, E, Pierce, D, Snead, A, Weltman

Publikováno v: Medicine and science in sports and exercise. 23(1)

The effect of exercise modality on the relationship between ratings of perceived exertion (RPE), blood lactate concentration, oxygen uptake (VO2), and heart rate (HR) was examined in 29 untrained male subjects who completed counterbalanced VO2max/lac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::912a361200c75eddf014cb63560ceff2
https://pubmed.ncbi.nlm.nih.gov/1997817

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Effect of paraxanthine on FFA mobilization after intravenous caffeine administration in humans

Autor: R. K. Hetzler, Ronald G. Knowlton, rd R. M. Perkins, S. M. Somani, Dale D. Brown

Publikováno v: Journal of applied physiology (Bethesda, Md. : 1985). 68(1)

Because it has previously been shown that it takes much more caffeine to cause fat mobilization in vitro than in vivo, it has been suggested that there may be an active metabolite working with caffeine causing an increase in lipolysis in vivo. To det

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca6324d79ae29a753130e1419d485851
https://pubmed.ncbi.nlm.nih.gov/2312486

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