RESUMEN
The purpose of this study was to compare the effects of different feedback frequencies on body weight distribution and functional balance in patients with stroke. Eighteen individuals with acute and subacute stroke were randomly assigned into 0 %, 20 %, 50 %, and 100 % feedback group. In additional to conventional Physical Therapy, all patients practiced standing their balance on the Balance Performance Monitor (BPM) 10 times per day, 5 days a week for 2 weeks. During the subjects received visual feedback from light on the monitor, verbal feedback and manual guidance. Body weight distribution (BWD) were evaluated before and 1-day after training. Descriptive statistics were used in this study. The result showed that after training the median of percent difference in body weight distribution had tendency to decrease more in 100 % and 50 % feedback group 95.2 % (23.8-99.2) and 72.2 % (32.0-96.2), respectively than in 20 % and 0 % feedback 42.4 % (41.0-44.8) and 41.1 % (26.1-83.3), respectively. This indicated that providing feedback to patients in acute and sub-acute stage at high frequency was more effective in learning weight bearing in standing than low frequency as they were in learning stage. External feedback helped augment the insufficient internal feedback. In conclusion, high feedback frequency had tendency to improve the body weight distribution better than low feedback frequency.
RESUMEN
Musculoskeletal disorders are one of the common health problems which can make people discomfort during doing activity or during working and this could affect the quality of their life, family and society. It can arise in every occupation, especially in the industries and also involved in textile occupation. The knowledge of prevalence of musculoskeletal disorder is important information and can be a potential practical guidance to prevent musculoskeletal disorders which will be a good effect for people and economy in their country. The aim of this study was to examine the prevalence of musculoskeletal disorders in the textile occupation in Khon Kaen, Thailand. Three hundred and twenty-three workers of several divisions of the textile industry were participated in this study. The participants were asked to fill out the Standard Nordic Questionnaire in Thai version. This study found that the top three of the most prevalence of musculoskeletal pain in seven days were shoulder pain (39.7 %, 95 % CI: 34.3 – 45.1), low back pain (36.3 %, 95 % CI: 30.9 – 41.6), and wrist and fingers pain (33.1 %, 95 % CI: 27.9 – 38.3), respectively. The top three of the most prevalence of musculoskeletal pain in twelve months were shoulder pain (49.8 %, 95 % CI: 44.4 – 55.3), low back pain (46.6 %, 95 % CI: 41.1 – 52.2), and neck pain (42.6 %, 95 % CI: 37.0 – 48.1), respectively. And the top three of the most disability which affected by pain were low back pain (27.5 %, 95 % CI: 22.5 – 32.5), hip pain (21.4 %, 95 % CI: 16.9 – 26.0), and shoulder pain (21.4 %, 95 % CI: 16.8 – 26.0), respectively. The findings of the study demonstrated that low back pain was the most frequent problem that was found in the textile industrial workers and could make them absent from work. Therefore, it would be worth to further investigate the risk factors of this problem in the textile industrial workers in order to prevent them suffering from the disorder.
RESUMEN
Exercise is proved to have impacts on cerebral hemodynamic changes. Cerebral hemodynamic changes with exercise have been shown in an intensity-dependent from the mild intensity (about 40 % VO2max) during a graded cycling exercise. However, its association with brain activation is still unknown. In this paper, the relationship between hemodynamic and EEG-changes with exercise was examined at different intensities from low to moderate. The regional cerebral blood volume (rCBV) and the brain waves were monitored by using NIRO 300 and EEG simultaneously with exercise. Nine healthy volunteers performed a 10-minute of cycling with 30-minute rest intervals at the intensity of 20 %, 40 % and 60 % VO2max. The EEG resulted in a significant increase in their percentage changes of alpha at 20 % and 40 % VO2max and beta at 40 % and 60 % VO2max. A significant positive correlation between rCBV and beta wave was also reported (r＝0.53, P \< 0.01). These results show that changes in rCBV with exercise have a significant correlation with high frequency brain wave and implicate that exercise-enhanced rCBV in the prefrontal cortex might be associated with brain arousal.