Acute resistance exercise is more effective than aerobic exercise for 24 h blood pressure control in type 2 diabetics

作者：Morais P K; Campbell C S G; Sales M M; Motta D F; Moreira S R; Cunha V N C; Benford R E; Simoes H G^*

来源：Diabetes & Metabolism, 2011, 37(2): 112-117.

DOI：10.1016/j.diabet.2010.08.008

• Type 2 diabetes
• Physical exercise
• Resistance exercise
• Aerobic exercise
• Ambulatory blood pressure monitoring

Aim. The study aimed to analyze blood pressure (BP) responses in individuals with type 2 diabetes (T2D) over a 24 h period following resistance (RES) and aerobic (AER) exercise.
Methods. - Ten adults with T2D (age: 55.8 +/- 7.7 years; weight: 79.4 +/- 14.0 kg; fasting glucose: 133.0 +/- 36.7 mg.dL(-1)) underwent: (1) AER: 20 min of cycling at 90% lactate threshold (90% LT); (2) RES: three laps of a circuit of six exercises with eight repetitions at 70% 1-RM and 40s of recovery; and (3) a control session of no exercise. Heart rate (HR), and systolic (SBP), diastolic (DBP), mean arterial (MAP) and pulse (PP) BP, as well as lactataemia (Lac), VO(2), respiratory exchange ratio (RER) and rate of perceived exertion (RPE) were measured at rest, during exercise and control (CON) periods, and 60 min after interventions. After each session, BP was also monitored over a 24 h period.
Results. - Peak Lac (RES: 6.4 +/- 1.4 mM; AER: 3.8 +/- 1.2 mM), RER (RES: 1.1 +/- 0.1; AER: 0.9 +/- 0.1) and RPE (RES: 14.0 +/- 1.3; AER: 11.0 +/- 2.3) Were higher following the RES session (P < 0.05). Similar VO(2) (similar to 70% VO(2peak)) was reached during AER and RES sessions (14.0 +/- 3.0 vs 14.3 +/- 1.6 mL.kg.min(-1); P > 0.05). Compared with CON, only RES elicited post-exercise BP reduction that lasted 8h after exercise. Also, in comparison to pre-exercise rest, the BP dip during sleep was greater following RES (P < 0.05).
Conclusion. A single exercise bout decreases BP in T2D patients over a 24 h period, with RES being more effective than AER exercise for BP control.

• 出版日期2011-4