Journal of Physical Therapy Science
Online ISSN : 2187-5626
Print ISSN : 0915-5287
Study of the Effect of Physical Stress on Coronary Flow Velocity Using Transthoracic Pulse Doppler Echocardiography
Hiroshi MaruokaKoichi KomakiKazuhisa Inoue
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Volume 17 (2005) Issue 1 Pages 51-56

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The relationship between muscle stress (MS) or exercise stress (ES) was examined in 20 healthy young volunteers (all male, 22.9 ± 4.8 years old, mean ± SD) through cardiopulmonary exercise testing and coronary flow velocity (CFV). A heart lung function measuring system was used to conduct expiration gas analysis through isokinetic testing, a training system for MS and a treadmill for ES. CFV was measured using an ultrasound diagnostic device before and after MS and ES loadings. CFV showed a significant increase for both MS and ES (p<.01 for both), and rate pressure product (RPP) similarly showed a significant increase (p<.001 for both). The relationship between CFV and expiration gas analysis etc., showed weak correlation only between CFV after loading MS and knee extension muscle strength (r=.56, p<.01). This indicates that CFV increases with ES and MS. Nonetheless, since no correlation was observed between CFV and RPP, further examinations are required with an increased number of volunteers.

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© 2005 by the Society of Physical Therapy Science
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