The purpose of this study was to (a) describe peer relationship profiles of youth sport participants and (b) assess the motivational salience of these profiles by examining profile group differences on sport motivation-related variables. Youth sport camp participants (N = 243) ages 10 to 14 years (M = 11.8, SD = 1.2) completed a multisection questionnaire that contained sport-contextualized measures of perceived friendship quality (positive, conflict), perceived peer acceptance, perceived competence, enjoyment, anxiety, self-presentational concerns, and self-determined motivation. The positive friendship quality, friendship conflict, and peer acceptance responses were cluster-analyzed, yielding five peer relationship profiles that were consistent with expectations based on previous research (i.e., Seidman et al., 1999). Profile differences were obtained for all motivation-related variables and were in theoretically consistent directions. Those young athletes categorized in more adaptive peer relationship profiles had more adaptive motivation-related responses. The findings support theoretical perspectives on social relationships and motivation as well as the efficacy of a person-centered approach to the examination of peer relationships in sport.

No abstract

No abstract

No abstract

An important aspect of facility management is the development of a comprehensive risk management plan. Player safety has only recently been a consideration when developing a risk management plan. Field conditions have not received much attention as it relates to player safety. Several injuries at Optus Stadium in Perth, Australia raised questions about the playing surface being the cause. The purpose of this study was to determine the ability of established athletic field agronomic measures to predict injuries from football fields and soccer pitches. Logistic regression was used to predict injury based upon soil compaction, soil moisture, surface firmness, and turfgrass quality. Results indicate that athletic fields that met good standards had the lowest probability of injury and injury probability is the highest when field conditions are considered poor. These results provide parameters facility and athletic field managers can use to determine whether an athletic field demonstrates a low risk of injury, needs to be improved, or a game should be canceled.