SenPlay is a sensory-play based intervention that includes deep tactile pressure, vestibular and proprioceptive input as a therapeutic medium to facilitate optimal arousal through activities such as pushing, pulling, climbing, jumping, and crashing. These activities are designed to facilitate changes in the child's arousal by providing sensory input and are used at random during the 15 minute window and are facilitated and monitored to ensure the child is reaching a threshold of moderate to vigorous physical activity. All participants will wear the ActiGraph accelerometer to measure the intensity of physical activity during the SenPlay intervention. Intervention sessions will occur at three time points, one per week for three weeks. Following the SenPlay intervention, participants will engage in 10 minutes of developmentally appropriate tasks (DAT) lead by the same investigator. DAT will be videotaped and coded for off task behaviors using Momentary Time Sampling (MTS).

The control group will engage in spontaneous, free play with the investigator supervising only for safety within the sensorimotor gym for 15 minutes, prior to the assessment of off-task behaviors during 10 minutes of developmentally appropriate tasks (DAT). All participants will wear the ActiGraph accelerometer to measure the intensity of physical activity reached during spontaneous, free play. Participants in the control group will participate in three sessions, one per week for three weeks. Intervention sessions will occur at three time points, one per week for three weeks. Following the spontaneous play, participants will engage in 10 minutes of developmentally appropriate tasks (DAT) lead by the same investigator. DAT will be videotaped and coded for off task behaviors using Momentary Time Sampling (MTS).

SenPlay is a sensory-play based intervention that includes deep tactile pressure, vestibular and proprioceptive input as a therapeutic medium to facilitate optimal arousal through sensory-play based activities such as pushing, pulling, climbing, jumping, crashing, and swinging. These activities are designed to facilitate changes in the child's arousal through providing sensory input to ensure the child is reaching a threshold of moderate to vigorous physical activity. Completed at three time points, once weekly for three weeks.

Momentary Time Sampling (MTS) using a MTS observation chart will be used to code on and off task behaviors when engaged in developmentally appropriate task (DAT) for three sessions per participant. Sessions will be recorded using a video camera and coded to ensure completeness of data tracking for on and off-task behaviors. Using MTS, the child's behavior is coded at the beginning of every 15 second time interval using a stopwatch to ensure 15 second intervals. Focused attention will be measured by calculating the percentage of on and off-task behaviors with all data collection and coding methods being the same for all participants in both groups. On-task behaviors are operational defined as behaviors in which both the eyes and hands are focused on the task, appropriately responding to the investigator's verbal instruction, and manipulation of materials as instructed by the investigator while off-task behaviors include any behavior not meeting the criteria of an on-task behavior.

The ActiGraph (GTX3) accelerometer will be used to measure the intensity of physical activity (PA) for each child while engaged in the SenPlay intervention and spontaneous, free play.