A study on the benefits of participation in an electronic tracking physical activity program and motivational interviewing during a three-month period | Movement & Sport Sciences

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Table 2

Physical activity behaviour (steps), psychological well-being and motivation, anthropometrics and physical measures pre- and post-intervention period.

	Pre Mean ± SD	Post Mean ± SD	Change ES_between	Magnitude of inference
				Harmful	Trivial	Beneficial
Physical activity (steps)
90-day average
Control		10,803 ± 5767	0.40	16% unlikely	0% very unlikely	84% Possibly
Experimental		13,369 ± 4597
Psychological measures
GHQ-12
Positive items (wellb.)			0.40	0% very unlikely	98% very likely	2% very unlikely
Control	2.9 ± 0.6	2.9 ± 0.7
Experimental	3.0 ± 0.3	3.3 ± 0.3
Negative items (illn.)			-0.23	0% very unlikely	99% very likely	1% very unlikely
Control	1.9 ± 0.7	1.8 ± 0.5
Experimental	1.6 ± 0.5	1.4 ± 0.4
BREQ-2
Amotivation			-0.06	1% very unlikely	98% very likely	1% very unlikely
Control	1.4 ± 0.6	1.5 ± 0.9
Experimental	1.1 ± 0.2	1.2 ± 0.4
External regulation			0.29	8% very unlikely	91% likely	2% very unlikely
Control	1.5 ± 0.7	1.3 ± 0.6
Experimental	1.5 ± 0.9	1.5 ± 0.9
Introjected regulation			0.56	24% possibly	74% possibly	2% very unlikely
Control	2.8 ± 0.8	2.2 ± 0.8
Experimental	2.4 ± 1.0	2.3 ± 0.8
Identified regulation			0.72	1% very unlikely	64% possibly	35% possibly
Control	2.7 ± 1.0	2.0 ± 0.9
Experimental	3.5 ± 1.0	3.6 ± 0.8
Intrinsic regulation			-0.06	9% very unlikely	80% possibly	11% possibly
Control	3.5 ± 0.7	3.7 ± 0.8
Experimental	3.6 ± 1.1	3.8 ± 1.0
Physical measures
Body weight (kg)			-0.10	3% very unlikely	24% possibly	73% possibly
Control	76.9 ± 16.7	76.9 ± 16.5
Experimental	89.3 ± 17.8	87.4 ± 18.7
Body Fat (kg)			-0.18	2% very unlikely	31% possibly	67% possibly
Control	23.2 ± 6.1	22.4 ± 6.8
Experimental	31.3 ± 8.2	29.1 ± 7.5
Time to exhaustion test (s)			0.05	38% possibly	5% unlikely	57% possibly
Control	577 ± 16	588 ± 95
Experimental	572 ± 59	573 ± 50

ES: mean difference of effect sizes between groups; wellb: well-being; illn: illness.

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