What question did this study set out to answer?

To determine how endurance training versus static resistance training influences reflex cardiovascular control and arterial baroreflex function in healthy men.

February 1, 1988Journal of Applied Physiology

Baroreflex function in endurance- and static exercise-trained men

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Why the study?

Does the mode of exercise training affect reflex cardiovascular control in men?

Population

30 men who were either endurance exercise trained (ET), untrained (UT), or weight trained (WT)

Comparison

Endurance exercise training or weight training vs Untrained (UT)

Design

Cross-sectional

Authors

MSMelvyn SmithUniversity of the West of England HGH. M. GraitzerTexas College DHD.L. HudsonUniversity of East Anglia

Discussion

Member takes

Implication

Endurance training was associated with attenuated baroreflex sensitivity; leaves open effects on clinical risk and requires prospective validation.

Key Points

To determine how endurance training versus static resistance training influences reflex cardiovascular control and arterial baroreflex function in healthy men.
Assessed 30 men categorized into endurance-trained (ET), untrained (UT), and weight-trained (WT) cohorts using a cross-sectional design.
Administered incremental phenylephrine infusions up to 120 µg/min and lower body negative pressure down to -50 Torr while monitoring heart rate, blood pressures, forearm blood flow, and vascular resistance.
Vasoconstrictor responses, measured by forearm blood flow and vascular resistance, did not differ significantly between groups across phenylephrine infusion doses.
Endurance-trained subjects showed a significantly attenuated heart rate-to-mean blood pressure slope (-0.57) compared with untrained (-0.91) and weight-trained (-0.88) individuals (P < 0.05).
Heart rate changes during lower body negative pressure confirmed a parallel, significant attenuation of reflex chronotropic responsiveness uniquely in endurance-trained men.

Structured PICO

Does the mode of exercise training affect reflex cardiovascular control in men?

Population

30 men who were either endurance exercise trained (ET), untrained (UT), or weight trained (WT)

Intervention

Endurance exercise training (ET) or weight training (WT)

Comparator

Untrained (UT)

Outcome

Baroreflex function (evaluated by regression of heart rate against mean blood pressure during phenylephrine infusion and delta heart rate/delta blood pressure during lower body negative pressure)surrogate

Endurance exercise training, but not weight training, is associated with an attenuation of reflex chronotropic control in men.

Cite This Study

Smith et al. (1988) studied this question.

synapsesocial.com/papers/6a71ef87f44fa9f079df969b https://doi.org/10.1152/jappl.1988.64.2.585

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Implication

Endurance training was associated with attenuated baroreflex sensitivity; leaves open effects on clinical risk and requires prospective validation.

Baroreflex function in endurance- and static exercise-trained men

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Baroreflex function in endurance- and static exercise-trained men

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider