Physiological responses, perceptual responses and target heart rate compliance of coronary heart disease patients during walk-jog exercise

Nine male CHD patients volunteered for testing to determine variations in heart rate response (HR), walk-jog velocity (W) and compliance to the target heart rate zone under three monitoring conditions. Determination of variations in W, peripheral perceived exertion (RPE_L) chest perceived exertion (RPE_C) and post-exercise lactate accumulation (La) during exercise which was held constant between 60-80% maximum HR reserve were also made. Procedures consisted of three 20 min walk-jog exercise conditions. First, two baseline condition (BC) trials were performed on separate days with exercise intensity regulated through intermittent defibrillator-ECG HR checks and radial/carotid artery palpation. Next, continuous telemetry monitoring of HR by staff was added during a single exercise trial (TC). Finally, two Exersentry_Rcondition (EC) trials were performed on separate days with continuous feedback concerning HR response provided to the patient via Exersentry_R devices. Evaluation of HR and W revealed no significant variation between conditions. However, % target HR reserve attained was significantly (p>0.05) lower during early and late BC, as compared to TC. Furthermore, "frequency in" vs "frequency out" of target HR zone was significantly (p>0.05) greater during EC, as compared to TC. During EC, no significant variations in HR, W, La, RPE_L and RPE_C were noted. Correlation coefficient values between 0.76-0.95 and 0.58-0.80 were reported for RPE_L and RPE_C, respectively. This data suggested that continuous feedback concerning HR response resulted in the greatest compliance to the target HR zone. With the exception of the first five min of EC, only RPE_L reliably mirrored HR and W. Index terms: Intermittent heart rate monitoring, continuous heart rate monitoring, heart rate response, walk-jog velocity, target heart rate compliance, peripheral perceived exertion, chest perceived exertion, post-exercise lactate accumulation.

Name thesis:degree_name

M.S.

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Education

Department dc:contributor.department

Education

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1987

Author dc:creator

• Bailey, Barry D.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/91082

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/91082