Browsing by Issue Date, starting with "2010-04"
Now showing 1 - 4 of 4
Results Per Page
Sort Options
- Portuguese version of the standardized Nordic musculoskeletal questionnaire: cross cultural and reliabilityPublication . Mesquita, Cristina; Ribeiro, José Carlos; Moreira, PedroThe self-administered questionnaires are fundamental for clinical assessment and research. The accessibility and constant use of recognized questionnaires in different languages facilitates the compilation of reliable data in international multicentre studies. The purpose of this study was to carry out a cross-cultural adaptation of the standardized Nordic musculoskeletal questionnaire for Portuguese workers and to investigate the psychometric properties of the Portuguese version. Sixty warehouse workers completed the questionnaire booklet containing the newly translated version of the standardized Nordic musculoskeletal questionnaire (NMQ) and the Oswestry disability index (ODI). After a week, to test reliability, all the individuals completed the standardized Nordic musculoskeletal questionnaire for a second time. The study is in accordance with the ERGHO guidelines for cross cultural adaptation. The Kendall’s tau-b correlation coefficient demonstrated existence of association to the upper back region variable “last 7 days” (0.350 to p < 0.01), low back region variable “last 7 days” (0.290 to p < 0.05), and low back region variable “limitations in daily activities” (0.479 to p < 0.01). These results showed a moderate correlation between the NMQ and ODI. Through the Kappa agreement correlation coefficient, we observe that the majority of the correlation coefficients were between 0.8 and 1, showing the existence of a strong to a very strong association, indicative of good levels for test-retest reliability. The Kuder-Richarson coefficient of reliability showed a correlation coefficient of 0.855 indicative of good internal consistency. The Portuguese version of the standardized Nordic musculoskeletal questionnaire for Portuguese workers seems to be valid revealing good coefficients of reliability.
- Sitting time and body mass index, in a Portuguese sample of men: results from the Azorean Physical Activity and Health Study (APAHS)Publication . Santos, Rute; Soares-Miranda, Luísa; Vale, Susana; Moreira, Carla; Marques, Ana I; Mota, JorgeThe aim of this study was to verify the relation between body mass index (BMI) and sitting time in a sample of 4,091 Azorean men. BMI was calculated from self-reported weight and height. Total physical activity (PA) time and total sitting time were assessed with the IPAQ (short version). Linear Regression analysis showed that total sitting time (hours/day) was positively associated with BMI (B = 0.078; p < 0.001) after adjustments for age, meal frequency, alcohol and tobacco consumptions, island of residence, education level and total PA time. Although the cross sectional design precludes us from establishing causality, our findings emphasize the importance of reducing sedentary behavior to decrease the risk of obesity.
- Mechanical properties and impedance model for the branching network of the sapping system in the leaf of Hydrangea MacrophyllaPublication . Ionescu, Clara; Tenreiro Machado, J. A.An electrical analogue model has been developed based on main leaf hydraulics characteristics and intrinsic geometry. The simulations show good qualitative agreements with specialized literature reports. The constant-phase behavior and the variation with ambient temperature of the frequency response of the leaf impedance are assessed by means of simulation studies.
- The relationship of cardiorespiratory fitness, birth weight and parental BMI on adolescents’ obesity statusPublication . Vale, Susana; Santos, R; Soares-Miranda, L; Mota, JThe aims of this study were as follows: (1) to analyze differences in cardiorespiratory fitness (CRF), parents' body mass index (BMI) and birth weight (BW) between non-overweight (NOW) and overweight/obese (OV/OB) adolescents, and (2) to investigate the association of those variables with the risk of their biological offspring being OV/OB. This study comprised 788 adolescents (477 girls and 311 boys), aged between 12 and 18 years. CRF was predicted by maximal multistage 20-m shuttle-run test according to the procedures described in FITNESSGRAM. Children's BMI was classified according to the International Obesity Task Force. Adolescents' BW was assessed from each child's pediatric record at birth. Parents' OV/OB status was defined and classified according to the World Health Organization. Socioeconomic status was defined by parental education. The prevalence OV/OB was 21.4 and 5.3%, respectively, and there were no gender differences. The OV/OB adolescents (girls and boys) had significantly (P