TY  - BOOK
AU  - Innerd, Paul. 
TI  - Physical activity assessment: a lifecourse approach / 
SN  - 978-1-138-05999-3
U1  - 613.7 
PY  - 2020///
CY  - London
PB  - Routledge, 
KW  - Physical fitness--Testing.
KW  - Accelerometers.
N1  - Includes bibliographical references and index.
ER  -