About this trial
This study aims to evaluate the acute effects of Buerger-Allen exercises on lower extremity circulation in sedentary office workers. Prolonged sitting is associated with reduced venous return, impaired peripheral circulation, and endothelial dysfunction. Buerger-Allen exercises are simple position-based exercises designed to enhance arterial blood flow, venous return, and tissue perfusion. Thirty-five healthy sedentary adults aged 18 to 45 years will participate in this single-group pretest-posttest clinical trial. Skin surface temperature, capillary refill time, ankle-brachial index, peripheral oxygen saturation, and heart rate will be measured before and after a single 20-minute exercise session. The findings may support the use of Buerger-Allen exercises as a practical, low-cost physiotherapy strategy to improve peripheral circulation and reduce the adverse vascular effects of prolonged sitting.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Healthy sedentary office workers
Age between 18 and 45 years
Sitting for at least 6 hours per day for work-related activities
Not meeting regular physical activity recommendations
Disqualifiers
History of peripheral arterial disease, deep vein thrombosis, or other vascular disorders
Cardiovascular, neurological, or musculoskeletal conditions that may affect lower extremity circulation or prevent exercise participation
Diabetes mellitus
Current smoking
Trial design
Single group
Treatments tested in this trial
Buerger-Allen Exercise Program
BehavioralThe intervention consists of a standardized Buerger-Allen exercise protocol involving three sequential positions: (1) elevation of the lower limbs above heart level to facilitate venous return, (2) dependency of the lower limbs to promote arterial blood flow, and (3) horizontal supine rest to stabilize circulation. The complete exercise session lasts approximately 20 minutes and is performed once. Lower extremity circulatory parameters are assessed at baseline, immediately after the intervention, and 10 minutes after the intervention.
Treatment groups
Trial outcomes
Primary outcomes
Skin Surface Temperature
Skin surface temperature measured with an infrared thermometer in degrees Celsius (°C). Higher values indicate increased peripheral blood flow and tissue perfusion.
Capillary Refill Time
Capillary refill time measured in seconds. Shorter times indicate improved peripheral microcirculation and tissue perfusion.
Secondary outcomes
Ankle-Brachial Index (ABI)
Ratio of ankle to brachial systolic blood pressure used to assess lower extremity arterial circulation. Higher values within the normal range indicate better arterial perfusion.
Peripheral Oxygen Saturation (SpO₂)
Oxygen saturation measured by pulse oximetry and expressed as a percentage (%). Higher values indicate improved peripheral oxygenation.
Heart Rate
Heart rate measured by pulse oximetry and expressed in beats per minute (bpm).
Sponsors and contacts
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