Infant screen media usage and social-emotional functioning.

There has been little research on whether and how screen media usage affects social-emotional (SE) function prior to two years of age, even though early SE development is understood to be nurtured through interpersonal experience, mainly withthe primary caregiver. This study sought to characterise infant screen media usage and understand how it may link with concurrent SE function by testing associated effects on reducing parent-infant interaction and of parent psychological factors. Questionnaire responses from 327 UK-based parents of infants aged 6-24 months showed diverse usage in the amount of time spent on screen media ('screen time') and amount of parental involvement (co-sharing and co-referencing).

Strength and endurance training reduces the loss of eccentric hamstring torque observed after soccer specific fatigue.

Objectives: To investigate the effect of two hamstring training protocols on eccentric peak torque before and after soccer specific fatigue.

Participants: Twenty-two university male soccer players.

Design: Isokinetic strength tests were performed at 60°/s pre and post fatigue, before and after 2 different training interventions.