Post-Exercise Hypotension in Elderly Hypertensive Men (HPE)
Effects of Different Exercises on Post-Exercise Blood Pressure in Elderly Hypertensive: A Cross-Over Randomized Clinical Trial
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
Hypertension has high prevalence and low rate of control, and is a major modifiable risk factor and public health problem. Regular physical exercise is a relevant non-pharmacological option for prevention and treatment of hypertension. Several studies demonstrated a reduction in blood pressure (BP) following different exercise protocols, and the decrease may be the result of the summation of hypotensive effects that occur in the hours following the workout. The reduction resulting from a single exercise session is called post-exercise hypotension (PEH) and has been investigated among hypertensive subjects. However, to achieve clinical relevance the PEH should reach a significant magnitude and the reduction should be sustained for a longer period.
Previous studies showed the positive effects of aerobic exercise on post-exercise hypotension in hypertensive subjects. However, there is lacking evidence regarding the effects of a single session of aerobic and resistance exercise combined, and the duration of its effect in 24 hours blood pressure in elderly hypertensive subjects.
The study is an open, crossover randomized clinical trial, with elderly men allocated to three arms, in a random order:
- Aerobic training session
- Combined resistance training and aerobic session
- Control session
After each exercise session, participants have 60 minutes for recovery, performed in the sitting position, with BP measurements every 5 minutes. In addition, participants have measured BP using 24h ambulatory BP monitoring. At the end of the trial, participants will have completed all three experimental protocols: a non-exercise control session, of sitting rest, and two exercise bouts, one of aerobic exercise and a combined resistance and aerobic exercise, with seven days of washout period among sessions. All experiments will be conducted at the same time of day to account for diurnal BP variation. Before the experimental sessions, participants are enrolled in three pre-intervention tests: a familiarization session, cardiopulmonary exercise testing and one maximum repetition strength test (1RM). The aerobic sessions last for 45 minutes, as well as the resistance exercises, and the session of control.
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
Rio Grande Do Sul
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Porto Alegre, Rio Grande Do Sul, Brasilien, 90035-903
- Hospital de Clinicas de Porto Alegre
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Essential hypertension grade 1 - 2 with or without medical treatment:
resting systolic blood pressure (SBP) ≥ 140 mmHg or diastolic blood pressure (DBP) ≥ 90 mmHg
Exclusion Criteria:
- Smoking;
- Bone, joint, or muscle problems that could limit the performance of the exercises.
- BMI ≥ 30 kg/m2
- Heart Attack in the last year
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Crossover tilldelning
- Maskning: Enda
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Experimentell: Aerobic exercise
Aerobic exercise on treadmill at 65-70% of the heart rate reserve during a session.
|
Aerobic exercise on treadmill
|
|
Experimentell: Combined exercises
A session combines resistance and aerobic exercises, with aerobic exercise on treadmill at 65-70% of the heart rate reserve, followed by 60 minutes for cardiorespiratory recovery, and resistance exercise.
|
Combined resistance and aerobic exercise
|
|
Sham Comparator: Control
Participants do not exercise and remain sitting for 45 minutes
|
45 minutes resting sitting
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Ambulatory Blood Pressure Monitoring
Tidsram: 24 hours
|
Ambulatory blood pressure monitoring following experimental protocols
|
24 hours
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Office Blood Pressure
Tidsram: 1 hour
|
Post exercise blood pressure during 60 minutes after experimental sessions
|
1 hour
|
Samarbetspartners och utredare
Samarbetspartners
Utredare
- Huvudutredare: Sandra C Fuchs, PhD, Hospital de Clinicas de Porto Alegre
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 130484
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