title: Effects of foot position of the nonparetic side during sit-to-stand training on postural balance in patients with stroke.
abstract: [Purpose] We aimed to investigate postural balance after sit-to-stand (STS) training with different nonparetic foot positions in stroke patients. [Subjects] Thirty-six subjects who experienced a stroke (21 males, 15 females) participated and were divided into the symmetric foot position (SYMM), asymmetric foot position (ASYM), and step foot (STEP) groups. [Methods] Each group performed repetitive sit-to-stand training 5 times a week for 6 weeks. The timed up-and-go test (TUG), functional reach test (FRT), and F-mat system correcting the anterior/posterior (A-P) and medial/lateral (M-L) distance of the center of pressure (COP) were used to measure the static and dynamic postural balance pre- and postintervention. ANCOVA was used to analyze differences among groups, and preintervention variables were used as covariates. [Results] The TUG, FRT, and A-P and M-L distance of the COP in the ASYM and STEP groups were significantly decreased after intervention compared with the SYMM group. All parameters in the STEP group were lower than those in the ASYM group, without a significant difference. [Conclusion] The asymmetric foot position during STS is a good intervention to improve the static and dynamic postural balance in stroke patients. Especially, using a step to change the foot position is effective in improving STS performance.
authors.affiliation: Department of Physical Therapy, College of Science, Kyungsung University, Republic of Korea.
authors.forename: Jintae
authors.initials: J
authors.lastname: Han
authors.affiliation: Department of Rehabilitation Science, Graduate school, Daegu University, Republic of Korea.
authors.forename: Youngmi
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Republic of Korea.
authors.forename: Kyung
authors.initials: K
authors.lastname: Kim
keywords: Foot position; Postural balance; Sit-to-stand