IMPACT: IMplementation of Physical Activity for Children and Adolescents on Treatment

The number of people who participate, and reasons why or why not.

Number of sessions attended out of the number of sessions offered by study staff.

Number of assessments completed out of number of scheduled assessments.

Modified Leisure Time Exercise Questionnaire (Godin & Shephard, 1985). Time spent in mild, moderate, and vigorous activity will be calculated. Higher numbers indicate greater physical activity.

7-day wear period (minimum) with an activity monitor. Higher numbers indicate greater time spent in physical activity and intensity.

The timed up and go test (shorter time indicates better functional mobility). Note, this and other "physical tests" to follow were selected based on use with healthy children, children with chronic conditions, and adults with and without chronic conditions (e.g., Bohannon, 1995; Canadian Society of Exercise Physiology, 2019; Deforche et al., 2003; Haas et al., 2017; Jankowski et al., 2015; Kolber & Hanney, 2012; Lemmink et al., 2003; McNeely et al., 2019; Muir et al., 2010; Podsiadlo & Richardson, 1991; Thorsteinsson et al., 2013).

30-second sit to stand test (more sit/stands indicates greater lower extremity endurance).

Flamingo balance test (longer time without falling, reaching, shuffling/jumping indicates better balance).

Shoulder range of motion (ROM; greater number indicates greater ROM).

sit and reach flexibility (greater distance indicates higher flexibility).

Aerobic step tests (more steps indicates higher aerobic capacity).

PedsQL 3.0 Cancer Module (Varni et al., 2009). Score range 0-100; higher scores indicate better quality of life.

PedsQL 4.0 Generic Core Scales (Varni et al., 2009). Score range 0-100; higher scores indicate better quality of life.

Symptom Screening in Pediatrics Tool (Hyslop et al., 2018). Score range 0-60; higher score indicates more symptoms experienced and greater severity of symptoms experienced.

Behavior Rating Inventory of Executive Function 2nd Ed (Gioia et al., 2015). Frequency of behaviors are ranked from "Never" to "Often," and results are reported as t scores where higher scores indicate greater deficits.

Number of participants who maintain physical activity following the program.

Fidelity of the physical activity program implementation will be assessed via randomly video-auditing a subset of sessions.

Time and expertise to deliver the intervention and physical assessments will be tracked.

Adverse events will be defined as any negative effect caused (or suspected to be caused by) the physical activity program.

Healthcare providers' and clinical staffs' referral to the physical activity program