Toshiaki Muraki, Kenichi Kujime, Tasuku Kaneko, Michiyo Su, Yasuyuki Ueba; Ventilatory and Cardiometabolic Responses to Unilateral Sanding in Elderly Women With Ischemic Heart Disease: A Pilot Study. Am J Occup Ther 1991;45(8):695-700. doi: 10.5014/ajot.45.8.695.
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This study was undertaken to investigate how 8 elderly women with ischemic heart disease would respond to a unilateral sanding activity. Three ventilatory measures – expiratory tidal volume, respiratory rate, and expiratory volume – and four cardiometabolic measures – metabolic equivalent, systolic blood pressure, heart rate, and pressure rate product – were continuously recorded during the sanding activity. The two independent variables were angle of the sanding board and sanding velocity. The activity was graded to yield five conditions: (a) sitting at rest; (b) 0° at 15 cycles per min (cpm); (c) 0° at 30 cpm; (d) 15° at 15 cpm; and (e) 15° at 30 cpm. The findings indicated that increasing the angle of the board while holding the velocity constant did not always increase the mean values of the ventilatory and cardiometabolic measures. However, increasing the velocity while holding the angle constant always increased the mean values of the dependent variables. The data also indicated that the metabolic equivalent reached during the sanding activity was no greater than 2, which corresponds to a light activity, such as playing a musical instrument. Replication of the study with a larger sample size may further elucidate the behavior of these two functions during a graded sanding activity. In the present study, a unilateral sanding activity by elderly patients with cardiac impairment was shown to provide valuable data on ventilatory and cardiometabolic functions. The study also demonstrated that a unilateral sanding activity can be safely used as a graded activity in occupational therapy for the cardiac rehabilitation of elderly women.
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