Oscillation intervals of cutaneous blood perfusion as indicators of aging

A total of 30 healthy participants (Old, aged >40 years, n=12; Young, age<40, n=18) were recruited, and their bilateral upper limb blood flow was recorded. The results showed that on either the left or right side, the average oscillation intervals of the lower age were significantly higher than those of the older age and that on the left or right side, the average interval was negatively and weakly correlated with age. The current study provides a window to access age-related changes on the oscillation interval of cutaneous laser Doppler flowmetry.