Article: Validation of three short physical activity questionnaires with accelerometers among university students in Spain - The Journal of Sports Medicine and Physical Fitness 2017 December;57(12):1660-8 - Minerva Medica - Journals

This narrative review describes the available scientific evidence regarding promising school-based strategies to increase physical activity of adolescents. We conducted a literature search for studies published up to 2011, regarding adolescent physical activity intervention studies that resulted in increased physical activity (regardless of measurement) and reviewed 52 intervention articles and 21 review articles. We identified several promising strategies and grouped into five broad intervention guidelines. These guidelines are as follows: (i) design multi-component interventions that foster the empowerment of members of the school community; (ii) develop improvements to Physical Education curricula as a strategy to promote physical activity to adolescents; (iii) design and implement non-curricular programmes and activities to promote physical activity; (iv) include computer-tailored interventions during the implementation and monitoring of physical activity promotion programmes and (v) design and implement specific strategies that respond to the interests and needs of girls. On the basis of our review of the adolescent physical activity promotion literature, we suggest that these five guidelines should be taken into account in school-based interventions geared towards achieving an increase in adolescent physical activity.

Adolescents' objectively assessed physical activity (PA) patterns during specific segments of the day remain unclear. In order to develop a clearer understanding this study examined country and gender differences in moderate to vigorous physical activity (MVPA) levels during specific segments of weekdays and weekend days, and explored the contribution of each segment to PA guidelines. Morpho‐demographic, socio‐economic and PA data were collected from a sample of 829 French and Spanish adolescents (45.0% Spanish; 55.2% females; 14.33±.73 years). Actigraph GT3X accelerometers were worn for seven days to assess adolescents' MVPA for three segments of weekdays (school‐travel‐time, school‐time, and non‐school‐time), and weekend days (morning‐time, afternoon‐time and night‐time). Data were analysed using multilevel modelling. The most active segments were non‐school‐time (29.2±17.5 min) and school‐time (25.8±14.2 min) during weekdays, and morning‐time (28.2±25.8 min) on weekend days. Except for school‐time, Spanish adolescents were more significantly active than French adolescents during all segments. Significant gender differences were found in all segments. Country differences highlight the need to recognise cultural contexts that influence adolescents' PA. Common European‐wide strategies may be insufficient to increase MVPA levels if cultural variability is not considered. Spanish and French PA intervention programmes should target girls and low‐active boys during non‐school‐time and weekends.

Self‐report recall questionnaires are commonly used to measure physical activity in children and adolescents. However, they have been shown to have low to moderate validity, mainly due to inaccuracies in recall activity. The purpose of the present study was to determine the reliability and validity of an adapted version of the Assessment of Physical Activity Levels Questionnaire (APALQ) among a sample of Spanish adolescents. Test–retest reliability of the APALQ was assessed using a sample of 150 adolescents (72 males, 78 females), aged 13.6±1.1 years, who answered the APALQ twice within 7 days. Criterion validity was assessed using a sample of 77 adolescents (50 males, 27 females), aged 13.6±1.1 years, by comparing the APALQ against the Computer Science and Application (CSA) monitor. All participants were volunteers recruited from local schools in the Aragon region of Spain. Test–retest reliability for all items was high with intra‐class coefficients of 0.77 for boys and 0.74 for girls. The APALQ demonstrated modest criterion validity with Pearson correlation coefficients (r) ranging from 0.53 between Physical Activity Index (PAI) and CSA minutes of moderate and vigorous physical activity, and 0.47 between PAI and CSA steps per day. When the data were analysed by gender, girls had higher correlations than boys (P < 0.01). The Spanish APALQ seems to be a valid and reliable short self‐report physical activity questionnaire.

La etapa universitaria supone un momento sensible respecto a la realización de práctica de actividad física (AF), especialmente en las mujeres. El objetivo principal de este estudio fue identificar la prevalencia de barreras de práctica de AF, y analizar las posibles diferencias en función del género y el cumplimiento de las recomendaciones de práctica de AF para adultos, establecidas por la Organización Mundial de la Salud (2010). Participaron 901 estudiantes universitarios (M = 22.59; DT = 3.59) que cumplimentaron el IPAQ-SF y la Escala de Percepción de Barreras. Entre los resultados destaca que las barreras relativas a la falta de tiempo obtuvieron los valores más altos entre la población universitaria. El MANOVA realizado mostró que los estudiantes que no cumplían las recomendaciones de práctica de AF percibían valores superiores en la mayoría de barreras de práctica de AF que aquellos estudiantes que sí cumplían las recomendaciones. De igual modo, las mujeres que cumplían las recomendaciones de AF presentaron valores superiores en todas las barreras analizadas, que los hombres que cumplían dichas recomendaciones. En esta misma línea, las mujeres que no cumplían las recomendaciones de AF presentaron valores superiores en las barreras referentes al tiempo y a la capacidad de disfrute que los hombres que no cumplían dichas recomendaciones. A raíz de la alta prevalencia de percepción de barreras, especialmente en las mujeres, se destaca la importancia de desarrollar programas de intervención y políticas que puedan suponer una mayor adherencia a la práctica de AF, asentando unos hábitos más activos en la población universitaria.