What question did this study set out to answer?

To evaluate whether 6 weeks of aerobic exercise training or yoga can modify the age-associated decline in baroreflex sensitivity in sedentary, healthy elderly individuals.

May 1, 1997European Journal of Clinical Investigation

Effects of aerobic exercise training and yoga on the baroreflex in healthy elderly persons

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Why the study?

Does aerobic exercise training or yoga improve baroreflex sensitivity in healthy sedentary elderly persons?

Key Points

To evaluate whether 6 weeks of aerobic exercise training or yoga can modify the age-associated decline in baroreflex sensitivity in sedentary, healthy elderly individuals.
Studied 26 sedentary, healthy, normotensive elderly participants (mean age 68 years, range 62–81; 10 women) who completed 6 weeks of either aerobic training (n=14) or yoga (n=12).
Quantified baroreflex sensitivity using the alpha-index at high frequency (HF; 0.15–0.35 Hz, parasympathetic) and mid-frequency (MF; 0.05–0.15 Hz, sympathetic/parasympathetic) via spectral and cross-spectral analysis of spontaneous heart rate and blood pressure fluctuations.
Aerobic training increased VO2 max by 24% (P < 0.01) but produced no significant change in resting heart rate (66 ± 8 vs. 63 ± 9 min⁻¹, P = 0.29), alpha MF (6.5 ± 3.5 vs. 6.2 ± 3.0 ms mmHg⁻¹, P = 0.69), or alpha HF (8.5 ± 4.7 vs. 8.9 ± 3.5 ms mmHg⁻¹, P = 0.65).
Yoga training increased VO2 max by 11% (P < 0.01), reduced resting heart rate (69 ± 8 vs. 61 ± 7 min⁻¹, P < 0.05), and significantly increased alpha HF (8.0 ± 3.6 vs. 11.5 ± 5.2 ms mmHg⁻¹, P < 0.01), while alpha MF showed no significant change (6.5 ± 3.0 vs. 7.6 ± 2.8 ms mmHg⁻¹, P = 0.29).

Structured PICO

Does aerobic exercise training or yoga improve baroreflex sensitivity in healthy sedentary elderly persons?

Population

26 sedentary, healthy, normotensive elderly subjects (mean age 68 years, range 62-81 years, 10 women)

Intervention

6 weeks of aerobic exercise training

Comparator

6 weeks of yoga (non-aerobic control intervention)

Outcome

Baroreflex sensitivity quantified by the alpha-index at high frequency (HF) and mid-frequency (MF)surrogate

A 6-week yoga intervention, but not short-duration aerobic training, significantly increases parasympathetic-mediated baroreflex sensitivity in healthy elderly individuals.

Discussion

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Implication

Yoga may enhance baroreflex sensitivity in elderly; hypothesis-generating and requires RCTs before any clinical consideration.

Cite This Study

Bowman et al. (1997) studied this question.

synapsesocial.com/papers/6a106a53e1a472cb5efcdb8e https://doi.org/10.1046/j.1365-2362.1997.1340681.x

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Effects of aerobic exercise training and yoga on the baroreflex in healthy elderly persons

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Effects of aerobic exercise training and yoga on the baroreflex in healthy elderly persons

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

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