Leg Surface Temperature and Heart Rate Variability Before and After Short-Term Wearing of Black-Silica-Containing Clothing: An Uncontrolled Pilot Study
Background/Objectives: Human physiological evidence for functional clothing is limited, and garment changes may reflect ordinary material or measurement effects. We described surface-temperature and heart rate variability (HRV) observations before and after wearing black-silica-containing clothing and quantified paired...