Table 6 Relationship between changes in physical fitness/physique indices and changes in bone mineral density over 4 years (girls, N = 152).

From: Associations between physical physique/fitness in children and bone development during puberty: a 4-year longitudinal study

Objective variable

Explanatory variable

B

Standard error

β

p

Adjusted R2

OSI

Change in height

− 0.033

0.013

− 0.458

0.013

0.172

Change in % fat

0.002

0.007

0.022

0.804

 

Change in % muscle

0.069

0.023

0.510

0.003

 

Change in grip strength

0.011

0.0011

0.099

0.303

 
  1. Multiple regression analysis.
  2. Adjusted by values at 10/11-year-olds (fifth-grade elementary school students).
  3. B, partial regression coefficient; β, standard partial regression coefficient; p, probability value; BMD, bone mineral density; N, Number of participants; OSI, osteo-sono assessment index; % fat, body fat ratio; % muscle, body muscle ratio.
Back to article page