Title | Youth Energy Expenditure During Common Free-Living Activities and Treadmill Walking. |
Publication Type | Journal Article |
Year of Publication | 2016 |
Authors | Schuna, Jr, JM, Barreria, TV, Hsia, DS, Johnson, WD, Tudor-Locke, C |
Journal | J Phys Act Health |
Volume | 13 |
Issue | 6 Suppl 1 |
Pagination | S29-34 |
Date Published | 2016 Jun |
ISSN | 1543-5474 |
Keywords | Adolescent, Child, Energy Metabolism, Exercise, Exercise Test, Female, Humans, Male, Walking |
Abstract |
BACKGROUND: Energy expenditure (EE) estimates for a broad age range of youth performing a variety of activities are needed. METHODS: 106 participants (6-18 years) completed 6 free-living activities (seated rest, movie watching, coloring, stair climbing, basketball dribbling, jumping jacks) and up to 9 treadmill walking bouts (13.4 to 120.7 m/min; 13.4 m/min increments). Breath-by-breath oxygen uptake (VO2) was measured using the COSMED K4b2 and EE was quantified as youth metabolic equivalents (METy1:VO2/measured resting VO2, METy2:VO2/estimated resting VO2). Age trends were evaluated with ANOVA. RESULTS: Seated movie watching produced the lowest mean METy1 (6- to 9-year-olds: 0.94 ± 0.13) and METy2 values (13- to 15-year-olds: 1.10 ± 0.19), and jumping jacks produced the highest mean METy1 (13- to 15-year-olds: 6.89 ± 1.47) and METy2 values (16- to 18-year-olds: 8.61 ± 2.03). Significant age-related variability in METy1 and METy2 were noted for 8 and 2 of the 15 evaluated activities, respectively. CONCLUSIONS: Descriptive EE data presented herein will augment the Youth Compendium of Physical Activities. |
DOI | 10.1123/jpah.2015-0728 |
Alternate Journal | J Phys Act Health |
PubMed ID | 27392374 |
PubMed Central ID | PMC5108056 |
Grant List | R21 HD073807 / HD / NICHD NIH HHS / United States U54 GM104940 / GM / NIGMS NIH HHS / United States |