Muscle strength and weight-bearing symmetry relate to sit-to-stand performance in individuals with stroke

Abstract

This study investigated the relationship of lower extremity joint torques and weight-bearing symmetry to sit-to-stand (STS) performance in individuals with chronic stroke. A motion analysis system and two force plates measured STS duration and weight-bearing symmetry (determined by ground reaction forces) during three self-paced and three fast-paced conditions. An isokinetic dynamometer measured maximum concentric joint torques of the paretic and non-paretic ankle, knee, and hip, which were normalized by body mass. Pearson correlations indicated that (a) paretic ankle dorsiflexion and knee extension torques related to the duration of the self-paced STS condition (r = -0.450, -0.716, respectively), (b) paretic ankle dorsiflexion, plantar flexion, and knee extension torques related to the duration of the fast-paced STS condition (r = -0.466, -0.616, -0.736, respectively), and (c) greater weight-bearing symmetry related to faster STS performance for both self-paced and fast-paced STS conditions (r = -0.565, -0.564, respectively) (P < 0.05). This evidence suggests that paretic muscle strength and the ability to load the paretic limb are important factors underlying the ability to rise from a chair in individuals with chronic stroke.

Clinimetrics of the Upright Motor Control Test in chronic stroke

“…Both constructs are classified under the same Body Functions domain (Neuromusculoskeletal and Movement‐related Functions) of the ICF (World Health Organization, 2001). The UMCT‐KE may successfully capture the ability of patients to accept load on the more affected lower extremity, which is an important dimension of sit‐to‐stand performance (Lomaglio & Eng, 2005). The positive relationship between the UMCT‐KE and FTSST builds on evidence from the study by Mercer et al.…”

Desempenho de hemiplégicos no giro de 180º realizado em direção ao lado parético e não parético antes e após um programa de treinamento

“…In the Balance Master ® manual, a similar reasoning is used: individuals with lower limb asymmetry may have different SQT test performances when comparing sides of the executed test 18 . Such reasoning can be based on the following premises: first, that the motor deficits of individuals with a history of stroke reflect the type, location and extent of the vascular injury; that hemiparesis/hemiplegia is more common in individuals with a history of stroke and a primary indication for rehabilitation 2 ; and, finally, that several studies have highlighted significant differences between the paretic and non-paretic sides in the performance of functional tasks and the relationship between these differences and the individual's functional level 4,6 .…”

“…Several studies have been carried out to investigate the performance of hemiplegics in different functional mobility tasks, such as gait 3,4 , sit-to-stand movements and stand-to-sit movements 5,6 . However, other important mobility tasks which are commonly performed by these individuals have not been investigated.…”

The Effects of Chair Height and Foot Position on Chronic Stroke Patients' Sit-To-Walk Movement

“…When stroke patients perform STW, they experience difficulties in the STS movements that need to be made before the initiation of walking, because they cannot produce the joint extension momentum and force for standing from the sitting position due to muscle weakness and postural control impairment [6][7][8][9] .…”