The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance

James G. Hopker, Damian A. Coleman, Hannah C. Gregson, Simon A. Jobson, Tobias Von Der Haar, Jonathan Wiles, Louis Passfield

Research output: Contribution to journalArticleResearchpeer-review

21 Citations (Scopus)

Abstract

Hopker JG, Coleman DA, Gregson HC, Jobson SA, Von der Haar T, Wiles J, Passfield L. The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. J Appl Physiol 115: 723-729, 2013. First published June 27, 2013; doi:10.1152/japplphysiol.00361.2013.-The purpose of this study was to assess the influence of age, training status, and muscle fiber-type distribution on cycling efficiency. Forty men were recruited into one of four groups: young and old trained cyclists, and young and old untrained individuals. All participants completed an incremental ramp test to measure their peak O2 uptake, maximal heart rate, and maximal minute power output; a submaximal test of cycling gross efficiency (GE) at a series of absolute and relative work rates; and, in trained participants only, a 1-h cycling time trial. Finally, all participants underwent a muscle biopsy of their right vastus lateralis muscle. At relative work rates, a general linear model found significant main effects of age and training status on GE (P < 0.01). The percentage of type I muscle fibers was higher in the trained groups (P < 0.01), with no difference between age groups. There was no relationship between fiber type and cycling efficiency at any work rate or cadence combination. Stepwise multiple regression indicated that muscle fiber type did not influence cycling performance (P > 0.05). Power output in the 1-h performance trial was predicted by average O2 uptake and GE, with standardized β-coefficients of 0.94 and 0.34, respectively, although some mathematical coupling is evident. These data demonstrate that muscle fiber type does not affect cycling efficiency and was not influenced by the aging process. Cycling efficiency and the percentage of type I muscle fibers were influenced by training status, but only GE at 120 revolutions/min was seen to predict cycling performance.

Original languageEnglish
Pages (from-to)723-729
Number of pages7
JournalJournal of Applied Physiology
Volume115
Issue number5
DOIs
Publication statusPublished - 1 Sep 2013

Keywords

  • Endurance performance
  • Gross efficiency
  • Maximal oxygen uptake
  • Muscle fiber type

Cite this

Hopker, James G. ; Coleman, Damian A. ; Gregson, Hannah C. ; Jobson, Simon A. ; Von Der Haar, Tobias ; Wiles, Jonathan ; Passfield, Louis. / The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. In: Journal of Applied Physiology. 2013 ; Vol. 115, No. 5. pp. 723-729.
@article{800a50d722754c6b9ee1736e6d63ec67,
title = "The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance",
abstract = "Hopker JG, Coleman DA, Gregson HC, Jobson SA, Von der Haar T, Wiles J, Passfield L. The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. J Appl Physiol 115: 723-729, 2013. First published June 27, 2013; doi:10.1152/japplphysiol.00361.2013.-The purpose of this study was to assess the influence of age, training status, and muscle fiber-type distribution on cycling efficiency. Forty men were recruited into one of four groups: young and old trained cyclists, and young and old untrained individuals. All participants completed an incremental ramp test to measure their peak O2 uptake, maximal heart rate, and maximal minute power output; a submaximal test of cycling gross efficiency (GE) at a series of absolute and relative work rates; and, in trained participants only, a 1-h cycling time trial. Finally, all participants underwent a muscle biopsy of their right vastus lateralis muscle. At relative work rates, a general linear model found significant main effects of age and training status on GE (P < 0.01). The percentage of type I muscle fibers was higher in the trained groups (P < 0.01), with no difference between age groups. There was no relationship between fiber type and cycling efficiency at any work rate or cadence combination. Stepwise multiple regression indicated that muscle fiber type did not influence cycling performance (P > 0.05). Power output in the 1-h performance trial was predicted by average O2 uptake and GE, with standardized β-coefficients of 0.94 and 0.34, respectively, although some mathematical coupling is evident. These data demonstrate that muscle fiber type does not affect cycling efficiency and was not influenced by the aging process. Cycling efficiency and the percentage of type I muscle fibers were influenced by training status, but only GE at 120 revolutions/min was seen to predict cycling performance.",
keywords = "Endurance performance, Gross efficiency, Maximal oxygen uptake, Muscle fiber type",
author = "Hopker, {James G.} and Coleman, {Damian A.} and Gregson, {Hannah C.} and Jobson, {Simon A.} and {Von Der Haar}, Tobias and Jonathan Wiles and Louis Passfield",
year = "2013",
month = "9",
day = "1",
doi = "10.1152/japplphysiol.00361.2013",
language = "English",
volume = "115",
pages = "723--729",
journal = "Journal of Applied Physiology",
issn = "8750-7587",
publisher = "American Physiological Society",
number = "5",

}

The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. / Hopker, James G.; Coleman, Damian A.; Gregson, Hannah C.; Jobson, Simon A.; Von Der Haar, Tobias; Wiles, Jonathan; Passfield, Louis.

In: Journal of Applied Physiology, Vol. 115, No. 5, 01.09.2013, p. 723-729.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance

AU - Hopker, James G.

AU - Coleman, Damian A.

AU - Gregson, Hannah C.

AU - Jobson, Simon A.

AU - Von Der Haar, Tobias

AU - Wiles, Jonathan

AU - Passfield, Louis

PY - 2013/9/1

Y1 - 2013/9/1

N2 - Hopker JG, Coleman DA, Gregson HC, Jobson SA, Von der Haar T, Wiles J, Passfield L. The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. J Appl Physiol 115: 723-729, 2013. First published June 27, 2013; doi:10.1152/japplphysiol.00361.2013.-The purpose of this study was to assess the influence of age, training status, and muscle fiber-type distribution on cycling efficiency. Forty men were recruited into one of four groups: young and old trained cyclists, and young and old untrained individuals. All participants completed an incremental ramp test to measure their peak O2 uptake, maximal heart rate, and maximal minute power output; a submaximal test of cycling gross efficiency (GE) at a series of absolute and relative work rates; and, in trained participants only, a 1-h cycling time trial. Finally, all participants underwent a muscle biopsy of their right vastus lateralis muscle. At relative work rates, a general linear model found significant main effects of age and training status on GE (P < 0.01). The percentage of type I muscle fibers was higher in the trained groups (P < 0.01), with no difference between age groups. There was no relationship between fiber type and cycling efficiency at any work rate or cadence combination. Stepwise multiple regression indicated that muscle fiber type did not influence cycling performance (P > 0.05). Power output in the 1-h performance trial was predicted by average O2 uptake and GE, with standardized β-coefficients of 0.94 and 0.34, respectively, although some mathematical coupling is evident. These data demonstrate that muscle fiber type does not affect cycling efficiency and was not influenced by the aging process. Cycling efficiency and the percentage of type I muscle fibers were influenced by training status, but only GE at 120 revolutions/min was seen to predict cycling performance.

AB - Hopker JG, Coleman DA, Gregson HC, Jobson SA, Von der Haar T, Wiles J, Passfield L. The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. J Appl Physiol 115: 723-729, 2013. First published June 27, 2013; doi:10.1152/japplphysiol.00361.2013.-The purpose of this study was to assess the influence of age, training status, and muscle fiber-type distribution on cycling efficiency. Forty men were recruited into one of four groups: young and old trained cyclists, and young and old untrained individuals. All participants completed an incremental ramp test to measure their peak O2 uptake, maximal heart rate, and maximal minute power output; a submaximal test of cycling gross efficiency (GE) at a series of absolute and relative work rates; and, in trained participants only, a 1-h cycling time trial. Finally, all participants underwent a muscle biopsy of their right vastus lateralis muscle. At relative work rates, a general linear model found significant main effects of age and training status on GE (P < 0.01). The percentage of type I muscle fibers was higher in the trained groups (P < 0.01), with no difference between age groups. There was no relationship between fiber type and cycling efficiency at any work rate or cadence combination. Stepwise multiple regression indicated that muscle fiber type did not influence cycling performance (P > 0.05). Power output in the 1-h performance trial was predicted by average O2 uptake and GE, with standardized β-coefficients of 0.94 and 0.34, respectively, although some mathematical coupling is evident. These data demonstrate that muscle fiber type does not affect cycling efficiency and was not influenced by the aging process. Cycling efficiency and the percentage of type I muscle fibers were influenced by training status, but only GE at 120 revolutions/min was seen to predict cycling performance.

KW - Endurance performance

KW - Gross efficiency

KW - Maximal oxygen uptake

KW - Muscle fiber type

UR - http://www.scopus.com/inward/record.url?scp=84883595807&partnerID=8YFLogxK

U2 - 10.1152/japplphysiol.00361.2013

DO - 10.1152/japplphysiol.00361.2013

M3 - Article

VL - 115

SP - 723

EP - 729

JO - Journal of Applied Physiology

JF - Journal of Applied Physiology

SN - 8750-7587

IS - 5

ER -