Voluntary Blood Pressure Control by Biofeedback: Relationship to Psychological Characteristics

Hunyor, Stephen N.; Bartrop, Roger; Craig, Ashley; Cejnar, M.; Liggins, G. W.; Henderson, Robyn J.; Jones, Michael

doi:10.1111/j.1440-1681.1991.tb01378.x

Cited by 8 publications

(7 citation statements)

References 20 publications

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“…Furthermore, persons whose perceptions of control were more internal (that is, those who believed their behaviour was due more to their own efforts and ability) were generally those who were more able to reduce BP. These findings add weight to prior research in this area (Wittrock et al, 1988;Blanchard et al, 1989;Hunyor et al, 1991). This strengthens the belief that outcome and efficacy expectancies contribute to an individual's ability to control their BP.…”

Section: Discussionsupporting

confidence: 79%

“…In a further study, McGrady and Higgins (1989) found lowering of BP was related to autonomic reactivity (such as high anxiety, higher cortisol levels and cool hands). Hunyor et al (1991) found associations between controlling BP and factors like expectancies (locus of control), and state and Blood Pressure Reduction 35 trait anxiety. McGrady (1994) showed that those who successfully reduced BP also reduced trait and state anxiety levels in comparison to controls.…”

Section: A R Craig Et Almentioning

confidence: 94%

“…Investigators have attempted to predict which subjects will achieve benefit (McGrady et al, 1986;Wittrock et al, 1988;Mullins and Sharpley, 1988;Nakagawa-Kogan et al, 1988;Blanchard et al, 1989;McGrady and Higgins, 1989;Hunyor et al, 1991;McGrady, 1994). Research has focused upon demographic, psychophysiological and psychological factors.…”

Section: A R Craig Et Almentioning

confidence: 99%

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Optimizing blood pressure reduction: predicting success in the home environment

Craig

Bartrop

Lal

et al. 2001

Clin Psychology and Psychoth

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Transferring skills to non-clinic contexts remains a challenge for clinical psychologists. Research is needed that investigates strategies of transferring clinic skills as well as factors that are associated with successful transfer. This paper presents research that involved training clients to reduce blood pressure (BP) in the home environment and isolating factors related to successful BP reduction. Subjects diagnosed with mild hypertension participated in a controlled trial investigating the efficacy of continuous BP feedback in helping to reduce systolic BP in the clinic and home environment. While the benefits of learning BP feedback in the clinic was not shown to be beneficial over a control, training in the home environment was shown to reduce BP significantly in comparison to controls. Factors shown to be associated consistently and reliably with reduction of BP in the home were those that involved beliefs or expectations of self-control. Expectations (self-efficacy) and an internal locus of control consistently predicted the ability to reduce both systolic and diastolic BP in the home environment. Implications for the behavioural treatment of hypertension are discussed.

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Section: Discussionsupporting

confidence: 79%

Section: A R Craig Et Almentioning

confidence: 94%

Section: A R Craig Et Almentioning

confidence: 99%

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Optimizing blood pressure reduction: predicting success in the home environment

Craig

Bartrop

Lal

et al. 2001

Clin Psychology and Psychoth

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“…Noninvasive continuous finger BP measurement has introduced a new method of BP feedback capability~Elbert et al, 1992;Hunyor et al, 1991;Sawada & Yamakoshi, 1991;Weitkunat et al, 1993! with advantages over intermittent feedback~Blanchard, Young, Haynes, & Kallman, 1974Gatchel, 1974;Pollard & Ashton, 1982!.…”

mentioning

confidence: 99%

“…Using continuous BP feedback, we found that 40% of both normotensive and hypertensive subjects could lower systolic blood pressure~SBP! by clinically relevant amounts of Ն5 mmHg in three studies~Cejnar, Hunyor, Liggins, & Bartrop, 1988;Hunyor et al, 1991Hunyor et al, , 1997! with reductions of 10 6 4.0, 15.3 6 7.5, and 11 6 5.6 mmHg, respectively, in the laboratory.…”

mentioning

confidence: 99%

Effect of feedback signal and psychological characteristics on blood pressure self‐manipulation capability

Lal¹,

Henderson²,

Carter

et al. 1998

Psychophysiology

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Blood pressure presentation mode and personality are likely to influence biofeedback outcome. Thirty-six normotensive subjects were randomly assigned to visual or auditory continuous systolic feedback. "Distracting speech" and "broad band noise" were also superimposed and the effect on the biofeedback response was investigated. Psychological influence was also investigated. Systolic pressure reduction of 4 +/- 4.3 mmHg (visual, p = .04) and 5 +/- 5.5 mmHg (visual + auditory, p = .03) were achieved compared with auditory feedback (2 +/- 4.7 mmHg), which was less effective. The addition of noise or speech had no effect on the systolic response, but speech adversely affected diastolic reduction (p = .04). Mood (p = .003) was associated with systolic lowering, whereas increased trait anxiety (p = .06) and expectation (p = .03) had trends for opposite effects. Increased anger-hostility, state-anxiety, and expectation (p = .06) had links with systolic raising capability. We conclude that feedback modality and psychological characteristics have implications for studies investigating blood pressure manipulation capability.

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