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June 1, 2001AJP Endocrinology and Metabolism

Enhanced oxygen extraction and reduced flow heterogeneity in exercising muscle in endurance-trained men

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Why the study?

Does endurance training improve skeletal muscle hemodynamics and oxygen extraction during exercise in healthy men?

Population

14 healthy men (7 endurance-trained and 7 untrained)

Comparison

Endurance-trained status vs Untrained status

Design

Cross-sectional

Authors

KKKari K. KalliokoskiVOVesa OikonenTTTeemu Takala

Discussion

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Overview

Endurance training was associated with higher muscle oxygen extraction; hypothesis-generating for causal effects on exercise efficiency.

Structured PICO

Does endurance training improve skeletal muscle hemodynamics and oxygen extraction during exercise in healthy men?

P
Population
14 healthy men (7 endurance-trained and 7 untrained)
I
Intervention
Endurance-trained status
C
Comparator
Untrained status
O
Outcome
Skeletal muscle hemodynamics and oxygen consumption (oxygen uptake, blood flow, blood volume, oxygen extraction fraction, blood transit time, flow heterogeneity) measured by positron emission tomography during rest and one-legged submaximal intermittent isometric exercisesurrogate

Endurance training is associated with higher oxygen extraction, longer blood transit time, and more homogeneous perfusion in exercising skeletal muscle, which may improve exercise efficiency.

Cite This Study

Kalliokoski et al. (2001) studied this question.

synapsesocial.com/papers/6a740618e39f0b3cc6eafc14https://doi.org/10.1152/ajpendo.2001.280.6.e1015
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