Figure 3: Single stance test (ST). The visual gain in supporting stability. (a) Visual gain according to sex and age: older women and older men showed a similar significant decrement of visual gain ( ) without gender differences. The greater decline of single stance stability in older women with respect to older men would be due to a more accentuated loss of proprioceptive control. (b) Visual gain according to different ranges of stability index in eyes closed; pp: Percentage points; *** .