A review of research studies suggesting that girls who exercise vigorously may experience disruptions in maturational processes suggests that carefully-monitored sports participation and training have no effect on growth and maturation. (Author/CB)

The facts about nine physical exercise myths are presented. (SB)

This study investigated the relationship between physical performance tests and body fatness in young children, and the extent to which differences in performance between the sexes could be explained by differences in body fatness. Measurements of age, height, weight, skinfold thicknesses, and performance scores on the vertical jump, standing…

To clarify patterns in the rate of motor development, children observed between kindergarten and second grade were refilmed, performing an overarm throw, when they became seventh-grade students. Results were compared with predictions made earlier. Differences in the skill levels of boys and girls and differences in their throwing experience are…

Investigated the role of mothers' expectancies in shaping their child's perceived physical competence. Structural equation modeling revealed that mothers' perceptions of their child's physical competence predicted their child's own perceived physical competence 1 year later, independent of the child's previously demonstrated physical ability and…

This study compared the body mass index (BMI) of 118 children with infantile autism with corresponding BMI percentiles in age-and sex-matched reference populations. The BMI distribution of the male children was significantly lower than that of the age-matched reference population. BMI was not associated with intelligence or socioeconomic status.…

Examined relations between children's temperament, ability overestimation, and accidental injuries. Found that watching peer failure on physical tasks was related to conservative ability judgments for same task. Surgency/Undercontrol was related to 6-year-olds' judgment accuracy and to 8-year-olds' decision times. Ability overestimation was…

Reviews and integrates research on the short-term and long-term impact of different forms of child maltreatment. Notes that scant studies concerning physical and motor development suggest psychobiological consequences of abuse; studies on social and emotional development indicate significant impact of abuse; and studies of cognitive/academic…

Twelve studies examined implications of age-related changes in movement between 6 weeks and 52 years for various psychological domains. Findings indicate an inverted U-shaped pattern in limb movements per hour that peaked in middle childhood, later than expected. This pattern in motor activity has relevance for development, and for ADHD,…

Interviews regarding physical and sexual development were conducted with 838 children ages five through 15 in Australia, England, North America, and Sweden. Children identified the people whom they asked sex-related questions and indicated their major sources of information. Mothers, school, and the media were the most frequently cited sources.…

This anthology of papers is designed to serve both as a textbook and as a synthesis of research efforts in youth sport. Half of the 20 papers are reprinted from the first edition of this volume; of the remainder, some were written especially for this edition, while others are culled from journals and conference proceedings. Five subject sections…

Compared the competence and self-esteem of 136 Australian primary school-aged children from different single-parent residency arrangements to those of a matched sample of two-parent children. Found that overall, single-parent children were not significantly different from two-parent children in competence levels and self-esteem. Found subtle…

The fifth in a series of reports presenting analyses and discussions of data on height, weight, and 28 other body measurements taken from a probability sample of noninstitutionalized children in the United States aged 6-11 years, this document compares the growth patterns of white and Negro children for 20 body measurements. Emphasis is placed on…

This booklet pertains to the size and the form of the human body in infancy, childhood, adolescence, and adulthood. Historic and current information is presented for individuals in population groups of the Americas, Europe, Asia, Africa, and the Pacific. Differences in size and growth patterns between urban and rural individuals of the same racial…

This special issue of the "Courrier," a journal for professionals concerned with issues related to the physical and psychological development of children, provides (1) an overview of 25 years of internationally coordinated research, (2) a selection of papers published by the research teams, and (3) a description of the teams and their…