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Effects of sitting time on blood circulation, blood pressure, and muscle activity in adults

Cardiometabolic and cardiovascular responses, strength, and muscle electrical activity during multistage prolonged sitting in sdults

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-32dp35h
Enrollment
Unknown
Registered
2025-01-14
Start date
2023-08-02
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Circulation. Muscle, Skeletal. Arterial Pressure

Interventions

This is a quasi-experimental, non-randomized, single-group study with a sample of 22 participants. Experimental Intervention: Participants will undergo a prolonged sitting protocol (3 uninterrupted ho
E01.370.405.255

Sponsors

Hospital de Clínicas da Universidade Federal do Triângulo Mineiro
Lead Sponsor
Programa de Pós-Graduação em Atenção à Saúde, Universidade Federal do Triângulo Mineiro - UFTM
Collaborator

Eligibility

Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Healthy young adults aged between 18 and 50 years; Absence of previous diagnosis of chronic diseases, such as diabetes mellitus (type 1 or type 2), hypertension, cardiovascular diseases, neuromuscular or metabolic disorders; No use of continuous medications, including antihypertensives, antidiabetics, anti-inflammatory drugs, beta-blockers, or any other medication that may influence metabolism, the cardiovascular system, or muscle function; No use of supplements or ergogenic substances (e.g., creatine, caffeine, beta-alanine) in the 30 days prior to participation in the study; Absence of musculoskeletal injuries, chronic pain, orthopedic conditions, or any other physical limitation that prevents prolonged sitting (minimum of 3 hours); Consent to follow all research protocol guidelines, with availability to participate in the experimental session and complete all study stages

Exclusion criteria

Exclusion criteria: Interruption or non-completion of any phase of the study, including initial screening, anthropometric assessments, reference tests, or the experimental session; Development of any acute condition (e.g., fever, infection, acute injury) or diagnosis of a chronic condition during the screening and data collection period that may interfere with the study outcomes; Intake of alcohol, caffeine, medications, or ergogenic supplements within the 24 hours prior to the experimental session; Participants with elevated levels of sedentary behavior (e.g., more than 12 hours/day sitting) or engaging in vigorous physical activity (>300 minutes/week) that may influence the study results; Exposure to environmental conditions that may alter thermoregulation or cardiovascular function (e.g., sunburn, hot baths close to the experimental session)

Design outcomes

Primary

MeasureTime frame
Acute changes in cardiovascular parameters (blood pressure, heart rate) and muscle electrical activity (root mean square, median frequency) during prolonged sitting.

Secondary

MeasureTime frame
Changes in skin temperature and peripheral blood flow assessed by infrared thermography during prolonged sitting.

Countries

Brazil

Contacts

Public ContactJair Virtuoso Junior

Federal University of Triângulo Mineiro - UFTM

jair.junior@uftm.edu.br+55(34)37006154

Outcome results

None listed

Source: REBEC (via WHO ICTRP)