Improvements in Physical Fitness are Associated with Favorable Changes in Blood Lipid Concentrations in Children

Table 3. Simultaneous changes in physical fitness and blood lipid concentration over the two years.

		2 year change in blood lipid concentrations
		Clustered lipid score		NonHDL-C (mg/dl)		TG (mg/dl)		HDL-C (mg/dl)		LDL-C (mg/dl)
		β	p	β	p	β	p	β	p	β	p
2 year change in physical fitness
Handgrip strength (kg)	Boys	0.170	0.334	0.224	0.263	-0.032	0.843	-0.182	0.336	0.183	0.354
Handgrip strength (kg)	Girls	0.064	0.671	-0.111	0.516	0.155	0.355	-0.086	0.613	-0.186	0.275
Standing long jump (cm)	Boys	0.025	0.821	0.195	0.098	-0.103	0.377	0.066	0.557	0.138	0.346
Standing long jump (cm)	Girls	0.070	0.456	0.094	0.373	-0.058	0.582	-0.066	0.545	0.119	0.267
Bent-leg sit up (times)	Boys	-0.105	0.312	-0.042	0.718	-0.098	0.389	0.103	0.342	0.024	0.828
Bent-leg sit up (times)	Girls	0.006	0.959	-0.053	0.649	0.112	0.334	0.034	0.777	-0.125	0.257
Ball throw (m)	Boys	-0.040	0.869	0.158	0.557	-0.268	0.298	0.075	0.764	0.282	0.289
Ball throw (m)	Girls	0.026	0.849	0.103	0.506	-0.082	0.590	0.003	0.987	0.115	0.450
50m sprinting (s)	Boys	-0.096	0.336	-0.070	0.534	-0.123	0.254	0.049	0.634	0.030	0.789
50m sprinting (s)	Girls	0.042	0.649	0.090	0.388	-0.011	0.917	-0.017	0.868	0.088	0.398
Side-step (times)	Boys	0.171	0.099	0.045	0.698	0.150	0.187	-0.160	0.136	-0.042	0.716
Side-step (times)	Girls	-0.111	0.279	-0.127	0.244	-0.047	0.669	0.060	0.595	-0.058	0.592
20 m shuttle run (times)	Boys	-0.235	0.230	-0.168	0.422	-0.149	0.471	0.151	0.443	-0.105	0.629
20 m shuttle run (times)	Girls	0.002	0.992	-0.260	0.186	0.094	0.631	-0.119	0.551	-0.272	0.172
Sit-and-reach (cm)	Boys	0.088	0.357	0.111	0.547	-0.121	0.245	-0.020	0.847	0.167	0.510
Sit-and-reach (cm)	Girls	0.081	0.357	0.125	0.202	-0.032	0.748	-0.040	0.698	0.116	0.241

HDL-C: high-density lipoprotein cholesterol; TG: triglyceride; LDL-C: low-density lipoprotein cholesterol. Data are presented as a standardized partial regression coefficient (B). Multilevel linear regressions were used to examine changes in physical fitness over the 2-year period (independent variable) was associated with the change in blood lipid concentrations over two years (dependent variable) after adjusting for baseline age, baseline BMI-SDS, changes in BMI-SDS over the 2-year (i.e., ∆BMI-SDS), a baseline corresponding blood lipid concentration (e.g., when the change in non-HDL-C concentration was modeled as the dependent variable, the analysis was adjusted for the baseline non-HDL-C concentration) and the baseline corresponding physical fitness (e.g., when the change in handgrip strength was modeled as the independent variable, the analysis was adjusted for the baseline handgrip strength).HDL-C: high-density lipoprotein cholesterol; TG: triglyceride; LDL-C: low-density lipoprotein cholesterol. Data are presented as a standardized partial regression coefficient (B). Multilevel linear regressions were used to examine changes in physical fitness over the 2-year period (independent variable) was associated with the change in blood lipid concentrations over two years (dependent variable) after adjusting for baseline age, baseline BMI-SDS, changes in BMI-SDS over the 2-year (i.e., ∆BMI-SDS), a baseline corresponding blood lipid concentration (e.g., when the change in non-HDL-C concentration was modeled as the dependent variable, the analysis was adjusted for the baseline non-HDL-C concentration) and the baseline corresponding physical fitness (e.g., when the change in handgrip strength was modeled as the independent variable, the analysis was adjusted for the baseline handgrip strength).