國立虎尾科技大學 |

Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance./
Author:	Belfry, Glen Robert.
Description:	1 online resource (127 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 72-06, Section: B, page: 3384.
Contained By:	Dissertation Abstracts International72-06B.
Subject:	Kinesiology. -
Online resource:	click for full text (PQDT)
ISBN:	9780494720837

Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance.
Belfry, Glen Robert.

Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance. - 1 online resource (127 pages)

Source: Dissertation Abstracts International, Volume: 72-06, Section: B, page: 3384.

Thesis (Ph.D.)--University of Toronto (Canada), 2010.

Includes bibliographical references

Many sports require short duration work periods and short duration rest periods (INT). This dissertation examines the engagement of aerobic and anaerobic energy systems in acute exercise with brief (10 seconds) work and recovery (5 seconds) and the effect of chronic exposure on those systems. The differences between INT and continuous exercise (CONT) of deoxygenated hemoglobin saturation (DeltaHHb), the pattern of breath-by-oxygen uptake (VO2) and muscle metabolic status, including, [Pi], [Pi]/[PCr], and [H+] were studied in young healthy adults. The physiological and performance responses to a four week, 12 session cycle ergometer training regime of the CONT and INT protocols were observed. Fluctuations in VO2, DeltaHHb, [PCr], and [H+] were observed within the work : recovery duty cycle of INT. Fluctuations of VO2, DeltaHHb, and [PCr] may be a function of the priming effects of previous high intensity exercise, inhibition at the locus of metabolic control, and elevated blood flow over the recovery-work transitions. Fluctuations in oxidative phosphorylation were associated with concurrent fluctuations in [PCr]. [Pi] and [PCr] were greater in INT vs CONT, whereas no differences were observed for [H+] between conditions. Reduced [PCr] may be the most appropriate indicator of metabolic stress, not increased [Pi] or [H+]. Similar improvements in aerobic power were observed for CONT and INT training, whereas anaerobic performance was enhanced post-INT training. Collectively the findings indicate that a unique INT exercise protocol facilitates increased muscle blood flow versus continuous exercise, the temporal association of muscle metabolic status, DeltaHHb, and pulmonary VO 2 with work rate, the apt use of [PCr] as a proxy for metabolic stress, and when this unique INT bout is utilized as a training protocol, adaptations in both aerobic and anaerobic metabolism will occur.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780494720837Subjects--Topical Terms:

721210
Kinesiology.
Index Terms--Genre/Form:

554714
Electronic books.

Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance.
LDR:03108ntm a2200301Ki 4500 001 916041
005 20180907134547.5
006 m o u
007 cr mn||||a|a||
008 190606s2010 xx obm 000 0 eng d
020 $a 9780494720837
035 $a (MiAaPQ)AAINR72083
035 $a AAINR72083
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Belfry, Glen Robert. $3 1189614
245 1 0 $a Effects of a Short Work/Shorter Rest Intermittent Exercise on Muscle Metabolic Status, Oxygen Uptake, Hemoglobin Saturation and Performance.
264 0 $c 2010
300 $a 1 online resource (127 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 72-06, Section: B, page: 3384.
502 $a Thesis (Ph.D.)--University of Toronto (Canada), 2010.
504 $a Includes bibliographical references
520 $a Many sports require short duration work periods and short duration rest periods (INT). This dissertation examines the engagement of aerobic and anaerobic energy systems in acute exercise with brief (10 seconds) work and recovery (5 seconds) and the effect of chronic exposure on those systems. The differences between INT and continuous exercise (CONT) of deoxygenated hemoglobin saturation (DeltaHHb), the pattern of breath-by-oxygen uptake (VO2) and muscle metabolic status, including, [Pi], [Pi]/[PCr], and [H+] were studied in young healthy adults. The physiological and performance responses to a four week, 12 session cycle ergometer training regime of the CONT and INT protocols were observed. Fluctuations in VO2, DeltaHHb, [PCr], and [H+] were observed within the work : recovery duty cycle of INT. Fluctuations of VO2, DeltaHHb, and [PCr] may be a function of the priming effects of previous high intensity exercise, inhibition at the locus of metabolic control, and elevated blood flow over the recovery-work transitions. Fluctuations in oxidative phosphorylation were associated with concurrent fluctuations in [PCr]. [Pi] and [PCr] were greater in INT vs CONT, whereas no differences were observed for [H+] between conditions. Reduced [PCr] may be the most appropriate indicator of metabolic stress, not increased [Pi] or [H+]. Similar improvements in aerobic power were observed for CONT and INT training, whereas anaerobic performance was enhanced post-INT training. Collectively the findings indicate that a unique INT exercise protocol facilitates increased muscle blood flow versus continuous exercise, the temporal association of muscle metabolic status, DeltaHHb, and pulmonary VO 2 with work rate, the apt use of [PCr] as a proxy for metabolic stress, and when this unique INT bout is utilized as a training protocol, adaptations in both aerobic and anaerobic metabolism will occur.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Kinesiology. $3 721210
655 7 $a Electronic books. $2 local $3 554714
690 $a 0575
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Toronto (Canada). $3 1182602
773 0 $t Dissertation Abstracts International $g 72-06B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR72083 $z click for full text (PQDT)