Key result
Maximal treadmill exercise induces a ~-29 mmHg ankle-arm systolic pressure difference versus submaximal exercise.
Why the study?
The blood pressure response at the ankle and arm after submaximal and maximal treadmill exercise in normal people was not well characterized.
Does maximal treadmill exercise alter the ankle-arm systolic blood pressure difference in healthy volunteers?
Cross-Sectional (n=19)
Does maximal treadmill exercise alter the ankle-arm systolic blood pressure difference in healthy volunteers?
Maximal treadmill exercise induces a negative blood pressure difference between the ankle and arm in healthy individuals, which is not seen with submaximal exercise.
Answers are grounded in this paper and cite their sources.
Post-exercise ankle-arm BP gradients warrant cautious interpretation in healthy adults; leaves open clinical utility pending validation studies.
Nineteen healthy volunteers, 10 men and nine women (mean age 38 and 30 years), exercised on a treadmill. The systolic blood pressure (BP) was measured at the ankle and in the arm after submaximal (8 min with a final load of 2 W kg-1 body weight) and maximal exercise. The BP was measured for 10 min after exercise, or until the elimination of a negative pressure difference between ankle and arm. The pre-study resting systolic arm and ankle pressures were 122 +/- 11 and 144 +/- 13 mmHg. One minute after submaximal exercise, arm and ankle BP were 147 +/- 18 and 159 +/- 19 mmHg (ankle-arm pressure difference 12 +/- 13 mmHg); 1 min after maximal exercise the corresponding figures were 182 +/- 26 and 153 +/- 35 mmHg (ankle-arm pressure difference -29 +/- 33 mmHg). We conclude that maximal exercise, but not an appropriately chosen submaximal exercise level, causes a negative BP difference between ankle and arm in normal people.
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Engvall et al. (1989) conducted a cross-sectional in Healthy (n=19). Treadmill exercise vs. Resting state and submaximal exercise was evaluated on Ankle-arm systolic blood pressure difference. Maximal treadmill exercise caused a negative systolic blood pressure difference between the ankle and arm (-29 +/- 33 mmHg) compared to submaximal exercise (12 +/- 13 mmHg) in healthy volunteers.
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