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Excessive muscle co-contraction is one of the factors related to the progression of knee osteoarthritis (OA). A previous study demonstrated that pain, joint instability, lateral thrust, weight, and lower extremity alignment were listed as factors affecting excessive co-contraction in knee OA. However, this study aimed to assess the association between fear-avoidance beliefs and muscle co-contraction during gait and stair climbing in people with knee OA. Twenty-four participants with knee OA participated in this cross-sectional study. Co-contraction ratios (CCRs) were used to calculate muscle co-contraction during walking and stair climbing, using surface electromyography. Fear-avoidance beliefs were assessed by the Tampa Scale for Kinesiophobia-11 (TSK-11) for kinesiophobia and the Pain Catastrophizing Scale (PCS) for pain catastrophizing. Secondary parameters that may influence co-contraction, such as degree of pain, lateral thrust, weight, and lower extremity alignment, were measured. The relationships between the CCR during each movement, TSK-11, and PSC were evaluated using Spearman’s rank correlation coefficient and partial correlation analysis, adjusted by weight and lower extremity alignment. Partial correlation analysis showed a significant correlation only between medial muscles CCR and TSK-11 during stair descent (r = 0.54, p < 0.05). Our study revealed that kinesiophobia could be associated with co-contraction during stair descent in people with knee OA.
Excessive muscle co-contraction is one of the factors related to the progression of knee osteoarthritis (OA). A previous study demonstrated that pain, joint instability, lateral thrust, weight, and lower extremity alignment were listed as factors affecting excessive co-contraction in knee OA. However, this study aimed to assess the association between fear-avoidance beliefs and muscle co-contraction during gait and stair climbing in people with knee OA. Twenty-four participants with knee OA participated in this cross-sectional study. Co-contraction ratios (CCRs) were used to calculate muscle co-contraction during walking and stair climbing, using surface electromyography. Fear-avoidance beliefs were assessed by the Tampa Scale for Kinesiophobia-11 (TSK-11) for kinesiophobia and the Pain Catastrophizing Scale (PCS) for pain catastrophizing. Secondary parameters that may influence co-contraction, such as degree of pain, lateral thrust, weight, and lower extremity alignment, were measured. The relationships between the CCR during each movement, TSK-11, and PSC were evaluated using Spearman’s rank correlation coefficient and partial correlation analysis, adjusted by weight and lower extremity alignment. Partial correlation analysis showed a significant correlation only between medial muscles CCR and TSK-11 during stair descent (r = 0.54, p < 0.05). Our study revealed that kinesiophobia could be associated with co-contraction during stair descent in people with knee OA.
Background: Stroke is a significant cause of long-term disability, leading to chronic impairments of balance and gait. However, successful rehabilitation can help stroke survivors improve their mobility and quality of life. This study compares the effects of Dual-Task Training (DTT) and Motor Relearning Program (MRP) on dynamic balance and gait parameters in chronic stroke patients with left hemiplegia. Methods: A randomized, double-blinded controlled trial was done in a tertiary care hospital from March to August 2023. Through simple randomization, 40 subjects with chronic left hemiplegic stroke were allotted into either the DTT group or the MRP group. Both groups received 45-minute sessions three times weekly for 12 weeks. The primary outcomes measured were the 10-Meter Walk Test (10MWT) and the Timed Up and Go Test (TUG)—secondary outcomes related to gait parameters, step length, cadence, cycle time, and stride length. Statistical analyses involved paired and independent t-tests, with a set level of significance described as p<0.05. Results: The statistical improvements in the DTT group show in the gait speed (10MWT) and TUG scores, which are significantly better than in the MRP group (p<0.05). Likewise, the DTT group’s step length, cadence, cycle time, and stride length also improved significantly (p<0.05). Conclusion: The use of DTT significantly improves the dynamic balance and gait of chronic stroke patients with left hemiplegia compared to MRP. This underscores the effectiveness of DTT as a tool for rehabilitating motor function in stroke patients. Further research should be pursued to optimize its application and evaluate long-term outcomes. Keywords: Balance, Gait, Impairments, Stroke Rehabilitation.
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