ObjectiveTo explore the effect of selective exercise training technique combined with ultrasound therapy on patellofemoral pain syndrome. MethodsPatients who met the research criteria were assigned into treatment group and control group randomly between July 2011 and August 2012. Each group had 28 patients. There were no significant differences in gender, age and body mass index between the two groups (P>0.05). Patients in the treatment group received selective exercise therapy and ultrasound therapy, while patients in the control group received normal exercise treatment and ultrasound therapy. Knee numerical pain rating scale (NPRS) and knee functional obstruction assessment were performed on all the patients before treatment and 5 days after treatment (on the 6th day) for comparison. ResultsBefore treatment, the score of NPRS in the treatment group and the control group was 4.7±0.8 and 4.8±0.9, respectively, with no significant difference (P>0.05). The score of functional obstruction assessment was 11.2±2.2 and 12.2±2.7 in the two groups without significant difference (P>0.05). Five days after treatment, the NPRS score decreased to 2.1±0.5 in the treatment group and 4.2±1.0 in the control group, and the knee functional obstruction assessment score decreased to 6.4±1.9 and 11.1±2.6, respectively. Both groups improved significantly in NPRS score and knee functional obstruction assessment score (P＜0.05), while the treatment group exhibited more improvement in the two scores than the control group (P＜0.05). ConclusionSelective exercise training is effective for improving the pain and function of patients with patellofemoral syndrome.
ObjectiveTo investigate the diagnostic value of oximetry in sleep apnea hypopnea syndrome (SAHS). MethodsAdult patients suspected for SAHS were enrolled between May 2010 and May 2013. The patients underwent both polysomnography (PSG) and oximetry for further diagnosis. Apnea hyponea index (AHI) and oxygen desaturation index four (ODI4) were calculated on a single night. The relationship between AHI and ODI4 were analyzed. ResultsA total of 628 adult patients were recruited.ODI4 was linearly correlated with AHI with a regression coefficient of almost 1. The cut-off values of ODI4 for indentifing SAHS and moderate to severe SAHS were 10 events per hour and 20 events per hour, with specificities of 99.9% and 99.3%, and AUCs of 0.931 and 0.934, respectively. Female, lower weight and less severe SAHS patients were easily misdiagnosed. ConclusionsThere is a high agreement between AHI and ODI4. Oximetry is less likely misdiagnose SAHS.