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NCT Number: NCT07484477

Sedentary Behavior Modification, Cardiopulmonary Function & QOL Post Cardiac Surgery Patients.

This study aims to investigate randomized controlled trial to evaluate whether reducing sedentary behavior improves recovery in post-cardiac surgery patients. Participants are assigned to either a behavioral intervention that substitutes sitting with light activity or to usual care. Changes in exercise capacity and quality of life are the primary measured outcomes. It is hypothesized that the intervention group will demonstrate superior gains in both physical function and well-being. The results could inform a valuable adjunct to existing cardiac rehabilitation programs.

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Key information

Conditions

Post-Cardiac Surgery Patients

Age range

50 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

MMC General Hospital

Peshawar, KPK, 25000, Pakistan

Location contact

Ayesha Khan, MSPT - CPPT

SUB_INVESTIGATOR

Suman Sheraz, PhD

CONTACT

[email protected]

03335646361

About this study

This randomized controlled trial (RCT) aims to determine the efficacy of a targeted sedentary behavior (SB) modification program as a component of early recovery following cardiac surgery. Participants are randomly allocated to either an intervention group, receiving structured counseling and feedback to replace prolonged sitting with frequent bouts of light-intensity physical activity, or a control group receiving standard postoperative care alone. subjective enhancements in health-related quality of life, assessed via validated questionnaires.The randomized control trial involving 24 patients.The study duration will be 3 months with assesment conducted at baseline,mid and end of intervention.Group A(interventional group recieving Sedantary Behavior protocol+Cardiac Rehab),Group B(Control group recieving only Cardiac Rehab).

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patient Aged 50-80 years (represents the majority cases)
  • Natural decline in physical capacity, making them an ideal population for studying these outcomes)
  • Underwent elective or emergency cardiac surgery (once patient is in ward)/1

Exclusion criteria

  • Those requiring invasive mechanical ventilation
  • Individuals with significant cognitive impairment affecting consent or compliance
  • Pregnant women or Lactating Mother

Treatment and study plan

Sedentary Behaviour Modification Protocol

Other

structured intervention designed to reduce the total time spent sitting or lying down (excluding sleeping) and to break up long, uninterrupted periods of inactivity. Effective protocols, often guided by the COM-B model (Capability, Opportunity, Motivation, Behaviour), aim to replace sedentary time with light-intensity physical activity (e.g., walking, standing).

Standard Cardiac Rehabilitation

Other

A 3-12 week outpatient, medically supervised program starting shortly after surgery, focusing on monitored exercise (Treadmill), risk factor modification, and education to safely improve heart function. It involves 1-hour sessions 2-3 times a week, combining aerobic training, light strength training, and lifestyle counseling

Primary outcomes

  1. Peak Expiratory Flow Rate (PEFR)

    Time frame: 12 weeks

    peak expiratory flow rates measured through digital spirometer.3 zones of measurements are commonly used to interpret peak flow rates. Normal value of PEFR is 80 to 100%.Green zone indicates 80 to 100% normal peak flow reading, yellow zone indicates 50 to 79 %of normal peak flow readings, and red zone indicates less than 50% of normal peak flow reading.

  2. Forced Vital Capacity (FVC)

    Time frame: 12 weeks

    Forced Vital Capacity (FVC) Forced vital capacity (FVC) measured through digital spirometer. If the value of FVC is within 80% of the reference value, the results are considered normal. Changes in FVC from baseline to 3rd week and after 6 weeks day of intervention will be assessed.

  3. Forced Expiratory volume in 1sec (FEV1)

    Time frame: 12 weeks

    Forced expiratory volume in 1sec (FEV1) measured through digital spirometer. If the value of FEV1 is within 80% of the reference value, the results are considered normal.

  4. 36-Item Short Form Health Survey

    Time frame: 12 weeks

    The SF-36 Health Survey is a widely used tool that measures eight scales related to functional and well-being health-related quality of life (HRQOL).

  5. No. of steps

    Time frame: 12 weeks

    Monitoring of 24- hours number of steps on an activity track watch

Study contacts

Contact information is provided by the study sponsor or research team.

Imran Amjad, PhD

CONTACT

[email protected]

03324390125

Suman Sheraz, PhD

CONTACT

[email protected]

03335646361

Sponsors and collaborators

Lead sponsor

Riphah International University

Other

Registry information

Official study title

Effects of Sedentary Behaviour Modification on Cardiopulmonary Function and Quality of Life in Post-Cardiac Surgery Patients

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Mar 20, 2026
Registry last updated
Mar 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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