Ischemic Preconditioning Promotes Post-Exercise Hypotension in a Session of Resistance Exercise in Normotensive Trained Individuals

Autor: Nacipe Neto, Leandro Raider, Luiz Guilherme da Silva Telles, Yuri de Almeida Costa Campos, Luis Leitão, Giovanni da Silva Novaes, Patrícia Silva Panza, Gleisson da Silva Araújo, Jefferson da Silva Novaes, Jeferson Macedo Vianna
Rok vydání: 2019
Předmět:
Zdroj: International Journal of Environmental Research and Public Health
Volume 17
Issue 1
ISSN: 1660-4601
DOI: 10.3390/ijerph17010078
Popis: Ischemic preconditioning (IPC) is a method that has been used prior to resistance exercise to improve performance. However, little is known about its effect before a resistance exercise training session on hemodynamic responses. Thus, the aim of the study was to verify the acute effect of IPC before a session of resistance exercises on the systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean blood pressure (MBP) of trained normotensive trained individuals. Sixteen men (25.3 ±
1.7 years
78.4 ±
6.2 kg
176.9 ±
5.4 cm, 25.1 ±
1.5 m2.kg&minus
1) trained in resistance exercise (RE) (5.0 ±
1.7 years) were evaluated in five sessions on non-consecutive days. The first two sessions&rsquo
subjects performed one repetition maximum (RM) test and retest, and for the next three sessions, they performed the experimental protocols: (a) IPC + RE
(b) SHAM + RE
(c) RE. The RE protocol consisted of six multi-joint exercises, three sets at 80% of 1RM until concentric failure. Blood pressure was monitored pre-session, immediately after and every 10 min for 60 min after RE. IPC consisted of 4 ×
5 min of vascular occlusion/reperfusion at 220 mmHg. SHAM (fake protocol) consisted of 20 mmHg of vascular occlusion/reperfusion. The IPC + RE protocol showed significant reductions on SBP, DBP, and MBP compared with SHAM + RE (p <
0.05) and with RE (p <
0.05). The IPC + RE protocol presented a greater magnitude and duration of post-exercise hypotension (PEH) from 20 to 60 min after exercise in SBP (&minus
11 to 14 mmHg), DBP (&minus
5 to 14 mmHg), and MBP (&minus
7 to 13 mmHg). Therefore, we can conclude that the application of IPC before an RE session potentiated the PEH in normotensive individuals trained in resistance exercise.
Databáze: OpenAIRE