Metabolic consequences of resistive force selection during cycle ergometry exercise

Julien S. Baker; Michael R. Graham; Bruce Davies

doi:10.1080/15438620600985928

Metabolic consequences of resistive force selection during cycle ergometry exercise

Julien S. Baker, Michael R. Graham, Bruce Davies

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The purpose of this study was to compare power outputs and blood lactate concentrations ([La−]B) following 30 s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs. 1020 ± 134 W; 134 ± 8 rpm vs. 141 ± 7 rpm; 6 ± 1 kg vs. 5 ± 1 kg, respectively). Blood lactate values ([La−]B) increased (P < 0.01) postexercise for both protocols and were significantly greater for TBM (10.6 ± 1.2 mmol.l−1 vs 11.6 ± 1.1 mmol.l−1, P < 0.05). These findings indicate that the FFM resistive force protocol may maximise adenosinotriphosphate-phosphocreatine (ATP-PC) utilisation with smaller contributions from anaerobic glycolysis when compared with TBM. These results may have important implications in the assessment of high intensity exercise performance.

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	Research in Sports Medicine
Volume	15
Issue number	1
DOIs	https://doi.org/10.1080/15438620600985928
Publication status	Published - 6 Mar 2007
Externally published	Yes

Keywords

high intensity exercise
blood lactate
body composition

Access to Document

10.1080/15438620600985928

Cite this

@article{94e3053cbbf94da39ac3eb1fcb012351,

title = "Metabolic consequences of resistive force selection during cycle ergometry exercise",

abstract = "The purpose of this study was to compare power outputs and blood lactate concentrations ([La−]B) following 30 s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs. 1020 ± 134 W; 134 ± 8 rpm vs. 141 ± 7 rpm; 6 ± 1 kg vs. 5 ± 1 kg, respectively). Blood lactate values ([La−]B) increased (P < 0.01) postexercise for both protocols and were significantly greater for TBM (10.6 ± 1.2 mmol.l−1 vs 11.6 ± 1.1 mmol.l−1, P < 0.05). These findings indicate that the FFM resistive force protocol may maximise adenosinotriphosphate-phosphocreatine (ATP-PC) utilisation with smaller contributions from anaerobic glycolysis when compared with TBM. These results may have important implications in the assessment of high intensity exercise performance.",

keywords = "high intensity exercise, blood lactate, body composition",

author = "Baker, {Julien S.} and Graham, {Michael R.} and Bruce Davies",

year = "2007",

month = mar,

day = "6",

doi = "10.1080/15438620600985928",

language = "English",

volume = "15",

pages = "1--11",

journal = "Research in Sports Medicine",

issn = "1543-8627",

publisher = "Taylor and Francis Ltd.",

number = "1",

}

TY - JOUR

T1 - Metabolic consequences of resistive force selection during cycle ergometry exercise

AU - Baker, Julien S.

AU - Graham, Michael R.

AU - Davies, Bruce

PY - 2007/3/6

Y1 - 2007/3/6

N2 - The purpose of this study was to compare power outputs and blood lactate concentrations ([La−]B) following 30 s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs. 1020 ± 134 W; 134 ± 8 rpm vs. 141 ± 7 rpm; 6 ± 1 kg vs. 5 ± 1 kg, respectively). Blood lactate values ([La−]B) increased (P < 0.01) postexercise for both protocols and were significantly greater for TBM (10.6 ± 1.2 mmol.l−1 vs 11.6 ± 1.1 mmol.l−1, P < 0.05). These findings indicate that the FFM resistive force protocol may maximise adenosinotriphosphate-phosphocreatine (ATP-PC) utilisation with smaller contributions from anaerobic glycolysis when compared with TBM. These results may have important implications in the assessment of high intensity exercise performance.

AB - The purpose of this study was to compare power outputs and blood lactate concentrations ([La−]B) following 30 s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs. 1020 ± 134 W; 134 ± 8 rpm vs. 141 ± 7 rpm; 6 ± 1 kg vs. 5 ± 1 kg, respectively). Blood lactate values ([La−]B) increased (P < 0.01) postexercise for both protocols and were significantly greater for TBM (10.6 ± 1.2 mmol.l−1 vs 11.6 ± 1.1 mmol.l−1, P < 0.05). These findings indicate that the FFM resistive force protocol may maximise adenosinotriphosphate-phosphocreatine (ATP-PC) utilisation with smaller contributions from anaerobic glycolysis when compared with TBM. These results may have important implications in the assessment of high intensity exercise performance.

KW - high intensity exercise

KW - blood lactate

KW - body composition

U2 - 10.1080/15438620600985928

DO - 10.1080/15438620600985928

M3 - Article

SN - 1543-8627

VL - 15

SP - 1

EP - 11

JO - Research in Sports Medicine

JF - Research in Sports Medicine

IS - 1

ER -

Metabolic consequences of resistive force selection during cycle ergometry exercise

Abstract

Keywords

Access to Document

Fingerprint

Cite this