Key result
Pulse transit time feedback designed to increase transit times significantly increased systolic pressure and heart rate, whereas decrease training significantly lowered diastolic pressure.
Why the study?
Does pulse transit time feedback affect systolic and diastolic blood pressure in human subjects?
Does pulse transit time feedback affect systolic and diastolic blood pressure in human subjects?
Pulse transit time feedback training over a two-week period can bidirectionally influence blood pressure and heart rate.
Case report data warrant no practice change; leaves open whether pulse transit time feedback reliably modulates blood pressure.
The current study examined the effects of pulse transit time feedback on systolic and diastolic blood pressure. Three subjects were given feedback designed to increase or decrease transit times. Eleven‐twelve one‐hour training sessions were provided over a two‐week period. The results showed that during increase training, significant increases in systolic pressure and heart rate were observed, while pulse transit time showed a significant decrease. Diastolic blood pressure increases were moderate and only inconsistently observed. During decrease training, diastolic pressure and heart rate declined significantly below baseline. Pulse transit time increases were consistent but lower in magnitude than observed for the opposite training condition. Moderate systolic blood pressure decreases were inconsistently observed.
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Cinciripini et al. (1981) studied this question. Pulse transit time feedback vs. Baseline / opposite training condition was evaluated on Systolic and diastolic blood pressure and heart rate. Pulse transit time feedback designed to increase transit times significantly increased systolic pressure and heart rate, whereas decrease training significantly lowered diastolic pressure.
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