Somatosensory perception sensitivity in voluntary postural sway movements: Age, gender and sway effect magnitudes

摘要: Abstract Objectives 1) to develop a reliable device for assessing somatosensory perception sensitivity in voluntary postural sway movement, specifically discrimination apparatus (SwayDA) testing lateral (VLSDS); 2) explore the relationship between mobility performance and VLSDS older adults, 3) determine effects of age, gender magnitude on VLSDS. Methods First, eighteen healthy young adults (8 males, 10 females, age ranging from 22 70) were recruited test-retest reliability study. During SwayDA test, participants asked discriminate four possible medial-lateral extents when moving away neutral standing. For Objective 2, twenty-five (9 16 mean 70.1) undertook both tests. The battery consisted single task cognitive dual timed-up and-go tests, 5 times sit-to-stand test. Pearson's correlation was calculated scores performance. 3, 20 community-dwelling over 65 years old (10 71.3) volunteers 23.6) study To obtain bias-free measure VLSDS, probability correct response considered as true-positive judgment, while incorrect false-positive these cumulated across values. A receiver operating characteristic (ROC) curve then generated Area Under ROC Curve (AUC) used Results There no significant difference AUC Day 1 8 (p > 0.05). ICC(3,1) indices 0.750 left 0.879 right. revealed sores timed-up-and-go (TUG), TUG, test (r = −0.456, −0.522, − 0.416 respectively, all p  Conclusions has good excellent reliability. finding that score significantly correlated with highlights importance control. More importantly, worse people observed inner movement range may represent unique neuromuscular degeneration associated aging, which should be monitored addressed rehabilitation programs.