Determining the Maximal Physiological Steady State in Cycling with Precision: Critical Power Estimations or Self-selected Exercise Intensity?

Giving the inherent limitations of critical power (CP) testing and the demanding maximal lactate steady state (MLSS) protocol, this thesis aimed: i) to compare the power outputs (POs) derived from two methods of estimating CP (i.e., the power-time relationship (CPHYP) and the 3-minute all-out test (CP3MIN)) and the determined MLSS; and ii) to test cyclists’ ability to predict their highest sustainable PO (CPSELF). Thirteen healthy young participants (26±3 yr; 69.0±9.2 kg; 174±10 cm; 60.4±5.9 mL·kg-1·min-1) were tested. PO at MLSS was lower than CPHYP and CP3MIN (p<0.05). PO at CPSELF was similar (p>0.05) to MLSS. The mean difference between the measures of MLSS and CPSELF was zero, and both methods presented similar (p>0.05) metabolic responses. The disagreement between CPHYP and CP3MIN with the PO at MLSS questions the ability of CP to estimate the maximal steady state, while CPSELF may offer an alternative approach to predict it with more precision.

Name thesis:degree_name

Master of Science (MSc)

Grantor dc:publisher.institution

Graduate Studies

Year dc:date.issued

2016

Author dc:creator

• Mattioni Maturana, Felipe

Advisors dc:contributor.advisor

• Murias, Juan M.
• Millet, Guillaume Y.

Committee members dc:contributor.committeemember

• Paterson, Donald H
• MacIntosh, Brian
• Passfield, Louis

• Physiology

Statement dc:rights

• University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

Language dc:language.iso

eng

DOI

http://dx.doi.org/10.11575/PRISM/25609

OAI identifier oai:identifier

oai:ucalgary.scholaris.ca:11023/3238