Capturing hand motions for hand function evaluations is essential in the medical field. Various data gloves have been developed for rehabilitation and manual dexterity assessments. This study proposed a modular data glove with 9-axis inertial measurement units (IMUs) to obtain static and dynamic parameters during hand function evaluation. A sensor fusion algorithm is used to calculate the range of motion of joints. The data glove is designed to have low cost, easy wearability, and high reliability. Owing to the modular design, the IMU board is independent and extensible and can be used with various microcontrollers to realize more medical applications. This design greatly enhances the stability and maintainability of the glove.
Background: Most tendon pathology is associated with degeneration, which is thought to involve cyclic loading and cumulative age-related changes in tissue architecture. However, the association between aging and degeneration of the extracellular matrix (ECM) in tendons has not been investigated extensively. Methods: We examined tenocytes from Achilles tendons taken from rats of three different ages (2, 12, and 24 months). Tenocyte viability was assessed using the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Quantitative real-time polymerase chain reaction (PCR) was used to determine the levels of mRNAs that encode type-I collagen, matrix metalloproteinase (MMP)-2 and −9, tissue inhibitor of metalloproteinase (TIMP)-1 and −2 and transforming growth factor (TGF)-β1. Gelatin zymography was used to evaluate the enzymatic activities of MMP-2 and −9. Furthermore, the concentration of TGF-β1 in conditioned medium was evaluated using enzyme-linked immunosorbent assay (ELISA). Results: The results of the MTT assay showed that the number of viable tenocytes decreased with age. No differences were observed in the levels of mRNAs that encode type-I collagen and TGF-β1 among the three age groups, and the TGF-β1 concentration did not change with age. However, mRNAs that encode MMP-2 and −9 were significantly more abundant in tenocytes from the aging group, and gelatin zymography revealed that the enzymatic activities of MMP-2 and −9 also increased significantly with age. Furthermore, as compared with young group, mRNAs that encode TIMP-1 and −2 were significantly decreased in tenocytes from the aging group. Conclusions: Activities of MMP-2 and MMP-9 in tenocytes increase with age. This might provide a mechanistic explanation of how aging contributes to tendinopathy or tendon rupture with age.
In this study, we proposed an upper-limb post-stroke rehabilitation system integrating a motion tracking device (MTD), a portable electroencephalogram (EEG) device for an attentional feedback, and interactive virtual reality (VR) game with the goal to assist patients in upper-limb rehabilitation. Fifteen post-stroke patients were recruited and randomly assigned to a control group (A) or one of two experimental groups (B and C). Group B played the game using a MTD and group C played it using a MTD and brain–computer-interface-based attention-monitoring EEG device. In group C, patients’ attention was measured in real time using the EEG while the patients performed tasks; visual and auditory stimuli were emitted when their attention lowered. The primary outcome was a change in score on the upper extremity section of the Fugl-Meyer assessment, which was used to evaluate the severity of motor impairment and indicate any improvement of motor function. Improvement in motor function, associated with game performance, was found in group C. Based on their performance quality during 12 training sessions, the higher performance of group C patients in the VR game was significantly correlated with attention level and motor performance. Higher attention level is associated with higher game performance after 12 training sessions, and our MTD-EEG-VR training system may facilitate the improvement of motor function and assist patients in upper-limb rehabilitation. Our MTD-EEG-VR game with the attentional EEG-feedback device is a potential intervention for improving motor function in patients with stroke.
No previous studies have evaluated an oral health programme, before swallowing therapy, in patients with stroke and dysphagia in Taiwan. This randomised controlled trial evaluated the effect of an oral health programme (i.e., sputum assessment, Bass method-based tooth brushing, and tooth coating with fluoride toothpaste) before swallowing therapy. Sixty-six patients with stroke (23 female, 43 male) in our rehabilitation ward, who underwent nasogastric tube insertion, were assigned randomly to an oral care group (n = 33) and a control group (n = 33). Demographic data, oral health assessment, Functional Oral Intake Scale (FOIS) scores, Mini-Nutritional Assessment-Short Form (MNA-SF) scores, and nasogastric tube removal rates were compared between groups. We evaluated outcomes using generalised estimating equation analysis. Three weeks post-implementation, the oral care group had significant oral health improvements relative to the control group (95% CI =−2.69 to −1.25, Wald χ2 = 29.02, p < 0.001). There was no difference in the FOIS (95% CI = −0.16 to 0.89, Wald χ2 = 1.86, p > 0.05), MNA-SF (95% CI =−0.35 to 0.53, Wald χ2 =−0.17, p > 0.05), and nasogastric tube removal (p > 0.05) between groups. The oral care group had a higher, but non-significant FOIS score (3.94 vs 3.52) (p > 0.05). Routine oral health programmes implemented during stroke rehabilitation in patients with dysphagia may promote oral health and maintain oral intake.