June 1, 2003Journal of Applied Physiology
Strength training reduces arterial blood pressure but not sympathetic neural activity in young normotensive subjects
Key result
Whole body resistance training for 8 weeks significantly decreased resting systolic (130 to 121 mmHg; P=0.01) and diastolic (69 to 61 mmHg; P=0.04) blood pressure, but did not affect MSNA.
Why the study?
Does whole body resistance training reduce resting arterial blood pressure and MSNA in young normotensive subjects?
Population
25 young normotensive subjects
Comparison
Whole body resistance training 3 days/wk for 8 wk vs Relative inactivity for 8 wk
Design
Cohort
Follow-up
8 weeks
Authors
Discussion
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Member takes
Implication
May reduce BP in young normotensives independent of MSNA; hypothesis-generating and requires RCTs before practice change.
Structured PICO
Does whole body resistance training reduce resting arterial blood pressure and MSNA in young normotensive subjects?
P
Population
25 young normotensive subjects (mean age 21 years) assigned to 8 weeks of whole body resistance training or a control group.
I
Intervention
Whole body resistance training 3 days/wk for 8 wk
C
Comparator
Relative inactivity for 8 wk
O
Outcome
Resting arterial blood pressure and muscle sympathetic nerve activity (MSNA)surrogate
Main Result
p-value: p=0.01
Whole body resistance training effectively lowers resting arterial blood pressure in young normotensive subjects, though this reduction is not mediated by decreases in sympathetic nerve activity.
Cite This Study
Carter et al. (2003) studied Normotensive (n=25). Whole body resistance training vs. Relative inactivity (control) was evaluated on Resting arterial blood pressure and muscle sympathetic nerve activity (MSNA) (p=0.01). Whole body resistance training for 8 weeks significantly decreased resting systolic (130 to 121 mmHg; P=0.01) and diastolic (69 to 61 mmHg; P=0.04) blood pressure, but did not affect MSNA.