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Table 2 Summary of exploratory factor analysis results for groupings of physical activity using maximum likelihood estimation and varimax rotation

From: Number of years of participation in some, but not all, types of physical activity during adolescence predicts level of physical activity in adulthood: Results from a 13-year study

 

Participants reporting the activity in Year 1 (%)b

 

Factor loadings

 

Factor 1

Factor 2

Factor 3

Sports

Fitness and dance

Running

Ice hockey

35

0.648

−0.135

0.070

Ice skating

31

0.534

0.073

0.098

Football

29

0.532

0.113

0.050

Roller blading/ skateboarding

51

0.502

0.100

0.169

Basketball

55

0.490

0.070

0.088

Soccer

50

0.425

0.063

0.239

Boxing

28

0.407

0.085

0.153

Baseball

18

0.402

0.071

0.046

ªBicycle

63

0.392

0.133

0.182

ªRacket sports

30

0.375

0.103

0.048

ªDownhill ski/ snowboard

25

0.327

0.018

0.135

ªVolleyball

18

0.317

0.193

0.009

ªBall playing

38

0.307

0.216

0.184

ªKarate

13

0.285

0.103

0.108

ªSwimming

40

0.278

0.219

0.003

ªCross-country ski

10

0.226

0.049

0.058

Jazz dance

12

−0.023

0.491

0.094

Dancing

40

−0.054

0.567

0.065

Gymnastics

18

0.145

0.447

0.018

Games

36

0.129

0.417

0.254

ªJump rope

19

0.162

0.358

0.129

ªExercise

69

0.350

0.351

0.330

ªTrack and field

21

0.164

0.310

0.203

Running

59

0.236

0.169

0.685

Mixed walking

70

0.083

0.164

0.623

ªOutdoor play

47

0.254

0.198

0.333

Eigenvalues

 

6.13

1.92

1.04

% of variance

 

23.6

7.4

4.0

  1. ªNot included in the main analysis because of low (<0.4) factor loading
  2. bThe proportion of boys and girls reporting participation in each activity in each of the first 5 years of study is reported in Belanger M, Gray-Donald K, O’Loughlin J, Paradis G, Hanley J. When adolescents drop the ball: sustainability of physical activity in youth. Am J Prev Med 2009, 37:41–49