Measurement of free-range activity in children as modified by social and environmental complexity. [electronic resource]
- The American journal of clinical nutrition Dec 1971
- 1457-60 p. digital
Publication Type: Journal Article
0002-9165
10.1093/ajcn/24.12.1457 doi
Child, Preschool Environment Female Heart Rate Humans Male Methods Motor Activity Play and Playthings Sex Factors Social Behavior Telemetry--instrumentation