Association between PhA and Physical Performance Variables in Cancer Patients

Area of Science:

• Oncology
• Sports Medicine
• Biophysics

Background:

• Maintaining physical performance is crucial for cancer patients undergoing aggressive treatments.
• Bioimpedance analysis (BIA) is used to assess body composition via phase angle (PhA).
• PhA's relationship with age, sex, and prognosis is known, but its role in cancer patient physical performance is underexplored.

Purpose of the Study:

• To investigate the relationship between phase angle (PhA) and physical performance in oncology patients.
• To determine if PhA is a valid tool for monitoring physical performance during cancer treatment.

Main Methods:

• Evaluated 311 cancer patients using bioelectrical impedance analysis (BIA) and physical performance tests.
• Measured phase angle (PhA) and various physical performance metrics.
• Analyzed the correlation between PhA variations and changes in physical performance indicators.

Main Results:

• A significant correlation was found between phase angle (PhA) and physical performance metrics.
• Each degree increase in PhA was associated with improvements in 400-m walking test, upper and lower-body strength, VO2peak, and ventilatory thresholds (VT1, VT2).
• Age was identified as a factor influencing the PhA-400mWT relationship, with older patients showing a stronger association.

Conclusions:

• Phase angle (PhA) is a reliable indicator of physical performance in cancer patients.
• PhA measurements can be effectively utilized in clinical practice for assessing and monitoring the physical status of cancer patients throughout their treatment.
• The study underscores the clinical importance of PhA in oncology for evaluating patient physical performance.