Bidirectional Relationships among Children’s Perceived Competence, Motor Skill Competence, Physical Activity, and Cardiorespiratory Fitness across One School Year

Table 1

Descriptive statistics (mean and standard deviation).

	Total sample; ()	Girls; ()	Boys; ()
Age (years; T1)	8.27 (0.70)	8.29 (0.74)	8.25 (0.66)
Age (years; T2)	10.03 (0.78)^+++	10.07 (0.80)	9.98 (0.74)
BMI (T1)	18.22 (3.71)	18.21 (3.57)	18.23 (3.92)
BMI (T2)	18.18 (4.77)	18.12 (4.58)	18.25 (4.99)
Total MVPA (T1)	83.38 (42.39)	76.73 (37.57)	92.36 (45.82)
Total MVPA (T2)	101.56 (45.94)	92.45 (35.58)	111.54 (53.45)
Perceived competence (T1)	3.00 (0.6319)	2.99 (0.64)	3.020 (0.59)
Perceived competence (T2)	2.44 (0.58)^+++	2.44 (0.57)	2.44 (0.58)
Motor skill competence (T1)	50.08 (6.81)	46.47 (3.45)	53.71 (7.27)
Motor skill competence (T2)	50.76 (7.16)	47.02 (3.14)	54.35 (8.04)
Physical fitness (T1)	18.16 (10.09)	16.31 (8.93)	21.16 (11.01)
Physical fitness (T2)	23.56 (12.17)^+++	20.15 (9.76)	26.83 (13.34)

T1 stands for baseline time; T2 stands for follow-up time. After 8 months, ⁺statistical differences between timepoints: ⁺⁺ and ⁺⁺⁺; statistical differences between gender: and .