PURPOSE The purpose of this study was to investigate effects of activity tracker & application use on adherence, metabolic syndrome factor and body composition of middle and senior-aged. METHODS The subjects of this study were 1,196 middle and senior-aged man and women with health hazard factor. All of subjects divided to two groups, activity tracker & application use group 990(man=492, wom-en=498) was participating in 24 weeks, and control group 206(man=71, women=135) was not in that program. They performed physical activity utilizing activity tracker & application for 24 weeks. The following items were measured before, middle and after the program : physical activity adherence, metabolic syndrome factor and body composition. RESULTS Results of this study showed that physical activity adherence appeared nothing in drop-rate of male(9.35%) and female(8.63%) : So adherence were male(90.65%) and female(91.37%). And changes of metabolic syndrome factor variables were significantly improved in total cholesterol, triglyceride, systolic blood pressure, and glucose in activity tracker & application use group and control group after 24 weeks. Also, body composition were showed significantly different in BMI, weight, waist. CONCLUSIONS Activity tracker & application use accompanied regular physical activity were effective in middle and senior-aged health promotion. This results can be utilized not only in new health promotion program of public health center but also in a local resident health management strategies.

Background and Purpose Gait problems are a primary complaint in patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD). The 12-item Multiple Sclerosis Walking Scale (MSWS-12) is a patient-reported measure assessing the impact of MS on the walking ability. We aimed to adapt and validate the Korean version of the MSWS-12 for the Korean population with MS and NMOSD. Methods Thirty-four MS and 35 NMOSD patients were recruited. The MSWS-12 questionnaire was translated into the Korean language and evaluated for its validity and reliability in these patients. Results The MS and NMOSD patients had mean ages of 35.9 and 42.1 years, respectively, median disease durations of 5.6 and 7.2 years, median Expanded Disability Status Scale (EDSS) scores of 2.75 (range, 0-6.5) and 3.5 (range, 0-7.5), and median baseline MSWS-12 total scores of 25 [interquartile range (IQR), 2.60-53.65] and 25 (IQR, 7.29-50.00). The baseline MSWS-12 total score in the patients with MS showed strong correlations with scores for the EDSS, timed 25-foot walk (T25FW), Multiple Sclerosis Impact Scale-29 (MSIS-29) physical dimension, and 36-item Short-Form Health Survey (SF-36) physical component summary (PCS), with Spearman's correlation coefficients (ρ) of 0.922, 0.756, 0.933, and-0.874, respectively. In patients with NMOSD, the baseline MSWS-12 total score showed strong correlations with scores for the EDSS, MSIS-29 physical dimension, and SF-36 PCS (ρ=0.769, 0.910, and-0.852, respectively), and moderate correlations with scores for the T25FW and Fatigue Severity Scale-9 (ρ=0.597 and 0.630, respectively). Conclusions The Korean version of the MSWS-12 appears to be a valid and reliable scale that can be used for Korean patients with MS. The MSWS-12 can also be applied to patients with NMOSD.