Time Course of Changes in Endurance Capacity : A 1-yr Training Study

To investigate the magnitude and the time course of changes in endurance capacity during the first year of an aerobic endurance training program with constant HR prescription. Eighteen previously untrained subjects (7 males and 11 females, 42 +/- 5 yr, BMI of 24.3 +/- 2.5 kg x m(-2), and maximal oxy...

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Bibliographic Details
Published in:Medicine and science in sports and exercise 2009-05, Vol.41 (5), p.1130-1137
Main Authors: SCHARHAG-ROSENBERGER, Friederike, MEYER, Tim, WALITZEK, Susanne, KINDERMANN, Wilfried
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Exercise - physiology
Exercise Test
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Middle Aged
Oxygen Consumption - physiology
Physical Endurance - physiology
Space life sciences
Time Factors
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:To investigate the magnitude and the time course of changes in endurance capacity during the first year of an aerobic endurance training program with constant HR prescription. Eighteen previously untrained subjects (7 males and 11 females, 42 +/- 5 yr, BMI of 24.3 +/- 2.5 kg x m(-2), and maximal oxygen uptake (VO(2max)) of 37.7 +/- 4.6 mL x min(-1) x kg(-1)) completed a 12-month jogging/walking program on 3 d x wk(-1) 45 min per session with a constant HR prescription of 60% HR reserve. Exhaustive treadmill tests were conducted before the intervention and after 3, 6, 9, and 12 months of training. In addition, submaximal tests on an indoor running track were performed every 4 wk. After 12 months, VO(2max) had increased by 0.36 +/- 0.33 L x min(-1) (median [interquartile range]: 16% [9%-20%], P < 0.001). After 3, 6, and 9 months, 52%, 65%, and 79% of this increase were reached, respectively. Resting HR decreased by a total of 9 +/- 6 min(-1) (P
ISSN:0195-9131
1530-0315
DOI:10.1249/MSS.0b013e3181935a11