The effects of Baduanjin exercise on fatigue and quality of life in patients with heart failure: A randomized controlled trial.

AIMS: The purpose of this study was to examine the effects of Baduanjin exercise on fatigue and quality of life in patients with heart failure. METHODS: The study was a randomized controlled trial. Participants diagnosed with heart failure were recruited from two large medical centers in northern Taiwan. Participants were randomly assigned to the intervention ( n=39) or control ( n=41) groups. Patients in the intervention group underwent a 12-week Baduanjin exercise program, which included Baduanjin exercise three times per week for 12 weeks at home, a 35-minute Baduanjin exercise demonstration video, a picture-based educational brochure, and a performance record form. The control group received usual care and received no intervention. Fatigue and quality of life were assessed using a structural questionnaire at baseline, four weeks, eight weeks, and 12 weeks after the intervention. RESULTS: Participants in the Baduanjin exercise group showed significant improvement in fatigue ( F=5.08, p=0.009) and quality of life ( F=9.11, p=0.001) over time from baseline to week 12 after the intervention. Those in the control group showed significantly worse fatigue ( F=3.46, p=0.033) over time from baseline to week 12 and no significant changes in quality of life ( F=0.70, p=0.518). Compared to the control group, the exercise group demonstrated significantly greater improvement in fatigue and quality of life at four weeks, eight weeks, and 12 weeks. CONCLUSIONS: This simple traditional exercise is recommended for Taiwanese patients with heart failure in order to improve their fatigue and quality of life.

N-doped P25 TiO2-amorphous Al2O3 composites: one-step solution combustion preparation and enhanced visible-light photocatalytic activity.

Nitrogen-doped Degussa P25 TiO2-amorphous Al2O3 composites were prepared via facile solution combustion. The composites were characterised using X-ray diffraction, high-resolution transmission microscopy, scanning electron microscopy, nitrogen adsorption-desorption measurements, X-ray photoelectron spectroscopy, UV-vis light-diffusion reflectance spectrometry (DRS), zeta-potential measurements, and photoluminescence spectroscopy. The DRS results showed that TiO2 and amorphous Al2O3 exhibited absorption in the UV region. However, the Al2O3/TiO2 composite exhibited visible-light absorption, which was attributed to N-doping during high-temperature combustion and to alterations in the electronic structure of Ti species induced by the addition of Al. The optimal molar ratio of TiO2 to Al2O3 was 1.5:1, and this composite exhibited a large specific surface area of 152 m2/g, surface positive charges, and enhanced photocatalytic activity. These characteristics enhanced the degradation rate of anionic methylene orange, which was 43.6 times greater than that of pure P25 TiO2. The high visible-light photocatalytic activity was attributed to synthetic effects between amorphous Al2O3 and TiO2, low recombination efficiency of photo-excited electrons and holes, N-doping, and a large specific surface area. Experiments that involved radical scavengers indicated that OH and O2- were the main reactive species. A potential photocatalytic mechanism was also proposed.