(2000). Assessment of Physical Activity by Self-Report: Status, Limitations, and Future Directions. Research Quarterly for Exercise and Sport: Vol. 71, No. sup2, pp. 1-14.

Assessment of physical activity by self-report: status, limitations, and future directions.

INTRODUCTION: Better understanding of the correlates of physical activity and sedentary behaviors in youth will support the development of effective interventions that promote a physically active lifestyle and prevent a sedentary lifestyle. The main goal of this systematic review is to summarize and update the existing literature on correlates of young people's physical activity, insufficient physical activity, and sedentary behavior. METHODS: A systematic review was conducted and included studies published between January 1999 and January 2005. RESULTS: The 60 reviewed studies showed that for children (age range 4-12), gender (male), self-efficacy, parental physical activity (for boys), and parent support were positively associated with physical activity. For adolescents (age range 13-18), positive associations with physical activity were found for gender (male), parental education, attitude, self-efficacy, goal orientation/motivation, physical education/school sports, family influences, and friend support. For adolescents, a positive association was found between gender (male) and sedentary behavior, whereas an inverse association was found between gender and insufficient physical activity. Ethnicity (Caucasian), socioeconomic status, and parent education were found to be inversely associated with adolescents' sedentary behaviors. For children, the evidence was insufficient to draw conclusions about correlates of insufficient physical activity and sedentary behavior. CONCLUSION: To gain more insight in the correlates of change in physical activity levels, more prospective studies are needed. Moreover, further research is needed examining the correlates of insufficient physical activity and sedentary behaviors, to develop effective interventions that may help children and adolescents diminish the time they spend on inactive behaviors.

A brief review on correlates of physical activity and sedentariness in youth

To investigate the influence of physical activity on bone mineral accrual during the adolescent years, we analyzed 6 years of data from 53 girls and 60 boys. Physical activity, dietary intakes, and anthropometry were measured every 6 months and dual-energy X-ray absorptiometry scans of the total body (TB), lumbar spine (LS), and proximal femur (Hologic 2000, array mode) were collected annually. Distance and velocity curves for height and bone mineral content (BMC) were fitted for each child at several skeletal sites using a cubic spline procedure, from which ages at peak height velocity (PHV) and peak BMC velocity (PBMCV) were identified. A mean age- and gender-specific standardized activity (Z) score was calculated for each subject based on multiple yearly activity assessments collected up until age of PHV. This score was used to identify active (top quartile), average (middle 2 quartiles), or inactive (bottom quartile) groups. Two-way analysis of covariance, with height and weight at PHV controlled for, demonstrated significant physical activity and gender main effects (but no interaction) for PBMCV, for BMC accrued for 2 years around peak velocity, and for BMC at 1 year post-PBMCV for the TB and femoral neck and for physical activity but not gender at the LS (all p < 0.05). Controlling for maturational and size differences between groups, we noted a 9% and 17% greater TB BMC for active boys and girls, respectively, over their inactive peers 1 year after the age of PBMCV. We also estimated that, on average, 26% of adult TB bone mineral was accrued during the 2 years around PBMCV.

https://asbmr.onlinelibrary.wiley.com/doi/pdf/10.1359/jbmr.1999.14.10.1672

A six-year longitudinal study of the relationship of physical activity to bone mineral accrual in growing children: the university of Saskatchewan bone mineral accrual study.

Does body satisfaction matter? Five-year longitudinal associations between body satisfaction and health behaviors in adolescent females and males.

The assessment of physical activity is an essential part of understanding patterns and influences of behaviour, designing interventions, and undertaking population surveillance and monitoring, but it is particularly problematic when using self-report instruments with young people. This study reviewed available self-report physical activity instruments developed for use with children and adolescents to assess their suitability and feasibility for use in population surveillance systems, particularly in Europe. Systematic searches and review, supplemented by expert panel assessment. Papers (n = 437) were assessed as potentially relevant; 89 physical activity measures were identified with 20 activity-based measures receiving detailed assessment. Three received support from the majority of the expert group: Physical Activity Questionnaire for Children/Adolescents (PAQ-C/PAQ-A), Youth Risk Behaviour Surveillance Survey (YRBS), and the Teen Health Survey. Population surveillance of youth physical activity is strongly recommended and those involved in developing and undertaking this task should consider the three identified shortlisted instruments and evaluate their appropriateness for application within their national context. Further development and testing of measures suitable for population surveillance with young people is required.

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An assessment of self-reported physical activity instruments in young people for population surveillance: Project ALPHA

This study assessed the convergent validity of the Physical Activity Questionnaire for Adolescents (PAQ-A). The PAQ-A is a modified version for high school students of the Physical Activity Questionnaire for Older Children (PAQC). The PAQ-A is a 7-day recall used to assess general physical activity levels during the school year. Eighty-five high school students in Grades 8 through 12 filled out the PAQ-A and other physical activity measures. The PAQ-A was moderately related to an activity rating (r = .73), the Leisure Time Exercise Questionnaire (r = .57), a Caltrac motion sensor (r = .33), and the 7-day physical activity recall interview (r = .59). The results of this study support the convergent validity of the PAQ-A as a measure of general physical activity level for high school students.

Convergent Validity of the Physical Activity Questionnaire for Adolescents

This study investigated the changes in and the relationships among body mass index (BMI), global self-esteem, physical self-perceptions, social physique anxiety (SPA), physical activity, and dietary restraint in adolescent females over a 24-month period. Participants (N = 501) completed annual assessments in grade 9, 10, and 11. The results showed moderate covariance stability in all variables. There were several significant time effects (group mean change), with small increases in BMI, moderate decreases in physical activity, and very small changes over time in SPA and physical self-perceptions. Longitudinal analyses indicated that specific physical self-perceptions were important predictors of physical activity, dietary restraint and SPA; however, most of the variance was explained by previous year values. Evidence of bidirectional effects revealed that specific self-perceptions impact specific behaviors and SPA more so than the impact of behavior/emotion on self-perceptions. These results highlight the...

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Longitudinal Assessment of the Relationship Between Physical Self-Concept and Health-Related Behavior and Emotion in Adolescent Girls

To examine: i) the mean changes in adolescent females’ body mass index (BMI), global self-esteem, physical self-perceptions, social physique anxiety, physical activity, and dietary restraint; ii) the stability of measuring self-perceptions, BMI, selfesteem, physique anxiety, activity, and dietary restraint; and iii) the relationships among changes in these variables over 12 months. 631 female adolescents (15–16 years old) involved in a two-year study of selfreport measures completed validated questionnaires in high school classroom settings. There were small but significant group increases in BMI and social physique anxiety and significant decreases in sport, conditioning, and strength physical selfperceptions and physical activity. Stability analysis indicates moderate to strong stability for all variables. Change analyses indicated that BMI, due to its high stability, is a poor predictor of change in all variables. Stronger significant correlations were noted between change in body appearance self-perceptions and change in social physique anxiety (r=-0.54) and dietary restraint (r=-0.27). There was also a significant relationship between change in physical activity and the physical self-perceptions, although conditioning was the only significant (p<0.05) predictor of change in physical activity (s=0.340). Physical self-perceptions are a stronger predictor of change in physical activity, dietary restraint, and social physique anxiety compared to BMI. This demonstrates the importance of physical self-perceptions when investigating health-related behaviours associated with dieting and physical activity. The decline in physical activity and increase in BMI is an ongoing concern, as is the link between body appearance self-perceptions and dietary restraint and social physique anxiety.

/pdf/predicting-change-in-physical-activity-dietary-restraint-and-4osvgil426.pdf

Predicting change in physical activity, dietary restraint, and physique anxiety in adolescent girls: examining covariance in physical self-perceptions.

This research assessed whether social physique anxiety moderated the relationship between physical self-perceptions and the level of physical activity involvement in young women. Participants were 354 female students who completed the Social Physique Anxiety Scale (SPAS), Physical Self-Perception Profile, Self-Administered 7-Day Physical Activity Recall (PAR), and Leisure Time Exercise Questionnaire (LTEQ). Both physical activity measures were significantly related to the SPAS and all physical self-perceptions. Multiple regressions showed that only self-perceptions of conditioning significantly predicted PAR (R2 = .24) and LTEQ (R2 = .30). SPA did not add any unique variance in predicting activity, and no moderator effects were found for either PAR or LTEQ. Findings suggest that perception of physical conditioning is the dominant predictor of physical activity levels in young women, and social physique anxiety does not moderate this relationship.

Physical self and physical activity relationships in college women: does social physique anxiety moderate effects?

This research examined the direction of causal flow between global and specific dimensions of self-concept. Although the multidimensionality of self-concept has been strongly supported in the literature, the hierarchical nature of self-concept has not been established. With the use of structural equation modeling, the hierarchical nature of self-concept was tested using the Physical Self-Perception Profile (PSPP) model both with and without global self-esteem included. Adolescent girls (N = 618) completed the PSPP and Harter’s global self-esteem scale during class time in Grade 9 and a year later in Grade 10. When horizontal effects were included in the self-concept models across age, there was little support for either top-down or bottom-up effects. This contrasted with the results found when the analysis was conducted within each time period separately. This research provides further evidence against the hierarchical model of self-concept and highlights the importance of examining the hierarchical natur...

Nanette P. Kowalski

Papers

Convergent Validity of the Physical Activity Questionnaire for Adolescents

Longitudinal Assessment of the Relationship Between Physical Self-Concept and Health-Related Behavior and Emotion in Adolescent Girls

Predicting change in physical activity, dietary restraint, and physique anxiety in adolescent girls: examining covariance in physical self-perceptions.

Physical self and physical activity relationships in college women: does social physique anxiety moderate effects?

Examining the Physical Self in Adolescent Girls Over Time: Further Evidence against the Hierarchical Model