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How Wall Squat Exercise Affects Blood Pressure in People With High Blood Pressure and Treated Sleep Apnea (WALLPRESS)

NCT07730879 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2026-07-29

No results posted yet for this study

Summary

This study will look at whether a simple exercise called the isometric wall squat can help lower blood pressure in adults who have both hypertension and obstructive sleep apnoea treated with CPAP. Obstructive sleep apnoea is a condition in which breathing repeatedly stops or becomes shallow during sleep, and it is closely linked to high blood pressure. Although CPAP helps treat sleep apnoea, it usually lowers blood pressure only a little, so additional non-drug strategies may be useful.

The study will compare two situations in the same participants: one session of wall squat exercise and one non-exercise control session. Each participant will take part in both sessions, but the order will be random. This design helps the researchers compare blood pressure changes more fairly within the same person.

Participants will first attend a familiarization session, where the study procedures will be explained and the exercise intensity will be checked. After that, they will complete the two study sessions at home, during their usual CPAP treatment visits. The sessions will be separated by at least 48 hours and completed within one week. Both sessions will be scheduled at the same time of day to reduce the effect of normal daily changes in blood pressure.

The main result the researchers will measure is the average systolic blood pressure during the 12 hours after each session, using ambulatory blood pressure monitoring. This means blood pressure will be measured over time while the participant goes about normal daily activities. The researchers want to find out whether a single session of wall squat exercise produces a greater blood pressure reduction than simply resting without exercise.

This study may help improve understanding of whether isometric exercise can be a practical, low-cost, home-based option to support blood pressure control in people with hypertension and CPAP-treated obstructive sleep apnoea.

Conditions

Interventions

OTHER

Isometric Wall Squat

4x2-min isometric wall squat contractions separated by 2-min rest periods plus standard drug therapy

Sponsors & Collaborators

  • Aveiro University

    lead OTHER

Principal Investigators

  • Fernando Ribeiro, PhD · University of Aveiro, Aveiro, Portugual

  • Eduardo C Costa, PhD · Federal University of Rio Grande do Norte, Natal, Brazil

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-30
Primary Completion
2026-10-30
Completion
2026-11-30

Countries

  • Portugal

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07730879 on ClinicalTrials.gov