Key result
Neither moderate nor high-intensity acute cycling exercise elicited post-exercise hypotension in adults with Down syndrome, but instead significantly increased systolic blood pressure.
Why the study?
Does acute cycling exercise reduce post-exercise blood pressure in individuals with Down syndrome?
Cross-Sectional (n=10)
Randomized crossover
No
Does acute cycling exercise reduce post-exercise blood pressure in individuals with Down syndrome?
A single 20-minute session of moderate or intense cycling exercise does not elicit post-exercise hypotension in individuals with Down syndrome.
Provides initial evidence of PEH in DS; leaves open intensity effects and clinical relevance.
Purpose Studies have shown that even a single session of physical exercise lowers blood pressure after its completion. This phenomenon is called post-exercise hypotension (PEH) and has been considered as a non-pharmacological treatment to control blood pressure. However, there are no studies regarding the occurrence of PEH after acute exercise in individuals with Down syndrome (DS). This study aimed to analyse the occurrence of PEH in these subjects and the possible role of exercise intensity. Methods Ten individuals with DS, of both genders, participated in the study (age, 29 ± 7 years; body mass, 60.7 ± 9 kg; height, 1.48 ± 0.11 m; BMI, 27.6 ± 2.4 kg/m²). The volunteers randomly underwent 2 sessions of exercise on a stationary bike for 20 minutes and 1 control session. Heart rate, systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured after 15 minutes of resting, in the 20th minute of each exercise session or control, and in the 15th, 30th, and 45th minute of post-exercise recovery. Results Both moderate and intense exercise performed acutely increased SBP (p < 0.001, p < 0.01, respectively), with no effect on DBP in individuals with DS. Neither the moderate nor the intense exercise was enough to elicit PEH. Conclusions The results indicated that individuals with DS may not present PEH for the intensities, duration, and exercise mode as applied in the present investigation. While additional studies with different exercise strategies are needed, our findings contribute to the body of literature regarding the PEH responses in adults with DS.
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Bezerra et al. (2018) conducted a cross-sectional in Down syndrome (n=10). Cycling exercise (moderate or high intensity) vs. Control session (sitting on a cycle ergometer for 20 minutes) was evaluated on Post-exercise hypotension (systolic and diastolic blood pressure during 45 minutes of recovery) (p=<0.001). Neither moderate nor high-intensity acute cycling exercise elicited post-exercise hypotension in adults with Down syndrome, but instead significantly increased systolic blood pressure.
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