Acute Hypotension After Moderate-Intensity Handgrip Exercise in Hypertensive Elderly People

Souza, LR, Vicente, JB, Melo, GR, Moraes, VC, Olher, RR, Sousa, IC, Peruchi, LH, Neves, RV, Rosa, TS, Ferreira, AP, and Moraes, MR. Acute hypotension after moderate-intensity handgrip exercise in hypertensive elderly people. J Strength Cond Res 32(10): 2971–2977, 2018—Isometric handgrip (IHG) training is effective in reducing blood pressure (BP), but little is known about the occurrence of acute hypotension by postisometric exercise hypotension (PIEH) and the underlying mechanisms. Ten sedentary hypertensive elderly people (7 women and 3 men) individuals, with a mean age of 73.2 ± 2.2 years and systolic BP (SBP) of 135.1 ± 6.5, were included; they were hypertensive for 13.2 ± 3.1 years and were receiving medications. These patients underwent 2 experimental sessions of isometric exercise using a portable hydraulic handgrip dynamometer: (a) sham session with 3% of maximal voluntary isometric contraction (MVIC) and (b) experimental isometric session with 30% MVIC, completing a total of 8 sets of 1-minute contraction and 1-minute rest-pause (overload of work = 51.7 kgf·min). Blood pressure and heart rate were evaluated at rest and 1, 5, 10, 15, 30, 45, and 60 minutes postexercise. Blood lactate (Lac) and salivary nitric oxide (NO−) were collected at rest, 0, 30, and 60 minutes postexercise. The SBP presented a reduction as of the tenth minute postexercise to session 30% MVIC (Δ = −14.4 at −18.7 mm Hg, p 0.05). These ...
Source: Journal of Strength and Conditioning Research - Category: Sports Medicine Tags: Original Research Source Type: research

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