Abstract
Bermingham MA, Mahajan D, Neaverson MA. Blood lipids of cardiac patients after acute
exercise on land and in water. Arch Phys Med Rehabil 2004;85:509–11.
Objective
To compare the effect on lipids of a single bout of high-intensity interval training
performed on land and in water in a group of cardiac patients involved in an intensive
cardiac rehabilitation program.
Design
Single-group, quasiexperimental, crossover design.
Setting
Swimming pool at a cardiac rehabilitation hospital in Australia.
Participants
Ten men, ages 55 to 77 years, with ischemic heart disease.
Intervention
Subjects performed 15 minutes of interval arm ergometer work at 65% to 75% of attained
heart rate, as determined by treadmill testing on land and in water on the same day.
Each patient had his own exercise prescription.
Main outcome measures
At each endurance phase, the number of revolutions and rate-pressure product (RPP)
during the final minute of work were taken. Fasting bloods were taken at baseline
and after maximum exercise, and lipid profiles were determined; differences were analyzed
by paired t test.
Results
No significant differences in revolutions or RPP were observed, which indicates that
workload and heart work were similar in all experiments. There were no significant
changes in total, low-density lipoprotein cholesterol, triglyceride, or apolipoproteins
A-I or B after exercise (paired t test). High-density lipoprotein cholesterol (HDL-C) was increased significantly by
exercise on land. In 6 patients with low baseline HDL-C (<0.9mmol/L), HDL-C was increased
only on land.
Conclusions
A single bout of high-intensity interval training was more effective in improving
HDL-C when performed on land than in water.
Keywords
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Article info
Footnotes
☆No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the author(s) or on any organization with which the author(s) is/are associated.
Identification
Copyright
© 2004 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.
