Toddler activity intensity during indoor free-play: stand and watch.

OBJECTIVE: Movement patterns among toddlers (16-36 months) differ from other early developmental periods; toddlers practice coordination, balance, and control. Toddler care environments may afford repetition of these emerging skills. This study examined intensity and type of movements during free-play indoors in child care among toddlers. METHODS: A convenience sample (n, 41; mean, 26.5 months) was observed for intensity of physical activity (PA), motor activity type, activity context, and teacher prompts in center-based care using a modified version of the Observational System for Recording Physical Activity for Children-Preschool. RESULTS: The most frequent PA intensity level was sedentary with limb movement. No significant gender differences emerged. Standing, sitting/squatting, and walking were the most frequent activity types. Dominant activity contexts included fine motor manipulative, self-care, and onlooking. Logistic regression results indicated that onlooking significantly decreased the odds of moderate to vigorous PA. Teachers offered few prompts to increase PA. CONCLUSIONS AND IMPLICATIONS: Toddlers demonstrate predominantly sedentary behaviors during free-play. Further observational research across the entire day is warranted to accurately assess intensity and teacher's support for moderate to vigorous PA.

Identification and validity of accelerometer cut-points for toddlers.

The purpose of this study was to derive ActiGraph cut-points for sedentary (SED), light-intensity physical activity (LPA), and moderate-to-vigorous physical activity (MVPA) in toddlers and evaluate their validity in an independent sample. The predictive validity of established preschool cut-points were also evaluated and compared. Twenty-two toddlers (mean age = 2.1 years ± 0.4 years) wore an ActiGraph accelerometer during a videotaped 20-min play period. Videos were subsequently coded for physical activity (PA) intensity using the modified Children's Activity Rating Scale (CARS). Receiver operating characteristic (ROC) curve analyses were conducted to determine cut-points. Predictive validity was assessed in an independent sample of 18 toddlers (mean age = 2.3 ± 0.4 years). From the ROC curve analyses, the 15-s count ranges corresponding to SED, LPA, and MVPA were 0-48, 49-418, and >418 counts/15 s, respectively. Classification accuracy was fair for the SED threshold (ROC-AUC = 0.74, 95% confidence interval = 0.71-0.76) and excellent for MVPA threshold (ROC-AUC = 0.90, 95% confidence interval = 0.88-0.92). In the cross-validation sample, the toddler cut-point and established preschool cut-points significantly overestimated time spent in SED and underestimated time in spent in LPA. For MVPA, mean differences between observed and predicted values for the toddler and Pate cut-points were not significantly different from zero. In summary, the ActiGraph accelerometer can provide useful group-level estimates of MVPA in toddlers. The results support the use of the Pate cut-point of 420 counts/15 s for MVPA.

Training caregivers to facilitate communicative participation of preschool children with language impairment during storybook reading.

UNLABELLED: This study reports the effects of training six adult caregivers to use an interactive reading routine, termed Complete Reading Cycle (CRC), during storybook reading with their preschool children, aged 3;2 to 3;5, who exhibited language impairment. Caregivers were taught to be more responsive to their children's communicative attempts during reading and to more actively engage the children in reading the story. Measures of child change included communicative participation and lexical diversity of utterances during adult-child shared reading. Children significantly increased the frequency of communicative turns, total number of words, and number of different words produced during shared storybook reading as a result of caregiver training. Five of the six children had higher mean frequencies for story initiations during training. However, increases in initiations were not statistically significant, with considerable variability across children for this measure. LEARNING OUTCOMES: (1) As a result of this activity, the participant will be able to discuss positive communicative changes in children with language impairment during adult-child storybook reading. (2) As a result of this activity, the participant will be able to use the storybook reading procedures with parents of preschool children exhibiting language impairment.

Comparison of two reading feedback strategies in improving the oral and written language performance of children with language-learning disabilities.

Twelve school-age children with language-learning disabilities (LLD) participated in a study comparing the effects of two reading feedback strategies for improving their oral and written language performance. Children were matched for age, disability, gender, and general reading performance. Participants were assigned to one of three study groups, Treatment 1 (T1), Treatment 2 (T2), or Control (C). Children were pre- and posttested on standardized tests of reading and oral vocabulary. T1 and T2 participated in 6 weeks of reading intervention. T1 used traditional decoding-based feedback strategies, and T2 used meaning-based feedback strategies, termed Communicative Reading Strategies (CRS). Significant differences across groups were found for reading comprehension, oral reading, and expressive vocabulary measures. Pairwise comparisons indicated that T2 performed significantly better than T1 and C on reading comprehension at posttest. Though not reaching levels of significance, T2 made greater gains than T1 and C on oral reading and expressive vocabulary measures. Results are discussed with implications for using CRS (T2) with school-age poor readers.