Background: and Purpose Abnormal excitability of the central nervous system, both spinal and supraspinal, has previously been described as a pathophysiological plastic mechanism for chronic pain syndromes. Primary fibromyalgia (FM) as one extreme of this spectrum of diseases. This case-control study aimed to determine the changes in the spinal excitability by investigating the Hoffman reflex (H-reflex) in patients with FM. Methods: Thirty-eight patients with FM and 30 healthy controls participated in this case-control study. We measured the H-reflex bilaterally in the upper limbs (flexor carpi radialis) and the lower limbs (gastrocnemius and soleus). Moreover, pain-related variables were measured, including pain severity (using a visual analogue scale), pain duration, Widespread Pain Index, and the score on the Symptom Severity Scale. Various psychiatric comorbidities and qualityof-life parameters were measured for each patient, including scores on the Hamilton Depression Rating Scale, Taylor’s Manifest Anxiety Scale, and the Revised Fibromyalgia Impact Questionnaire. Results: A significant increase in the ratio of the maximum baseline-to-peak amplitudes of H and M waves (Hmax/Mmax) but not in the H-wave minimum latency was found in patients with FM compared with healthy controls. There were no significant correlations between this ratio in both muscles and the various pain-related measures, psychiatric comorbidity, and quality of life in patients with FM. Patients with FM suffered more depression and anxiety than did the controls. Conclusions We found increased spinal excitability in patients with FM, which was not confined to the site of maximum pain. This information may help in the diagnosis of FM and supports the hypothesis of central sensitization.

In maternal healthcare, pre-pregnancy weight is used to predict pregnancy outcomes. Since no recorded data on pre-pregnancy weight, perceived weight is used alternatively. This study examines the relationship between perceived and actual weight among non-pregnant urban Malaysian women of childbearing age and identifies differences in perceived and actual weight by selected socio-demographic characteristics. A cross-sectional study was conducted between April and June 2013 among urban Malaysian women attending public health clinics in the Klang Valley. Information on height, perceived current weight and time when their weight was last taken were obtained and actual weight was the average of two measurements (TANITA-HD-323-digital-scale). Socio-demographic data collected were age, ethnicity, education level, marital and employment status and total household income. Mean age of 371 women in this study was 28.81±5.65, 82.2% were Malays, 62.8% had tertiary education, over 75% were married and employed, with more than half from middle-income households. Overall, the mean perceived and actual weight was 59.29±11.59 and 59.20±11.90 respectively. Pearson’s Correlation test showed a very strong positive correlation between perceived and actual weight (r=0.957;p<0.0001), ranging between 0.852 to 0.994 among subgroups; 258 (69.5%) perceived their weight accurately (±2.0 kg of actual weight), 49 (13.2%) under and 64 (17.3%) overestimated their weight. Main outliers were among younger women, Malays, tertiary educated, employed, middle-income and had weight last measured a month or more ago. Strong correlation between perceived and actual weight among women in this study reassured weight perception can be used more confidently in patients’ history taking and future research among urban Malaysian women using public health services.​

Background: The availability of obesity specific quality of life measurement tool is limited. The Malay version of Impact of Weight on Quality of Life-Lite is an obesity specific quality of life questionnaire which has been translated for use in Malaysia. The aim of this study is to evaluate the validity and reliability of this tool to measure quality of life among different body mass index (BMI) groups.Methods: One hundred and twenty subjects with different BMI categories attending an outpatient government clinic participated in this study. The translated Malay version of IWQOL-Lite was used for assessment. The validity of this questionnaire was examined using content validity, criterion validity and construct validity. Reliability analyses used in this study were internal consistencies and test-retest reliability. Results: The Malay version of IWQOL-Lite showed good psychometric properties whereby the content validity was sufficient as measured by expert panels. The mean score of all IWQOL-Lite domains were able to discriminate between different BMI groups. Good internal consistency was demonstrated by Cronbach alpha of 0.936. Test-retest reliability ranged from 0.828 to 0.932. The physical function score (IWQOL-Lite) correlated positively with Physical Component Summary of Short Form-36 questionnaire. Exploratory factor analysis found that the questions loaded on five domains. Conclusion: The results suggest that the Malay version of IWQOL-Lite is a valid and reliable tool to measure quality of life among obese and overweight subjects in Malaysia.