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# Table 2 Multivariate regression models

Panel 2a Functional status (performance)
Dependent Predictor B (SE) ß 95% CI for B p-value
Total PAL Age -1.89(5.6) -0.04 -13.10 9.31 p = .738
Non-dancer vs dancer 37.71(29.3) 0.20 -20.68 96.11 p = .202
BMI 4.06(5.6) 0.09 -7.29 15.41 p = .478
GJH (Beighton ≥4) -19.69(26.9) -0.10 -73.33 33.94 p = .467
Muscle Strength (N) -0.04(0.5) -0.16 -0.14 0.05 p = .373
Pain intensity (mm) -0.364(0.6) -0.07 -1.66 0.05 p = .576
Fatigue (CIS) -0.03 (0.7) -0.07 -1.47 1.40 p = .964
Panel 2b Functional status (capacity): Walking distance
Dependent Predictor B (SE) ß 95% CI for B p-value
6MWT1 Age 1.53(2.2) 0.05 -2.85 5.91 p = .488
Non-dancer vs dancer 81.5(11.5) 0.59 58.6 104.3 p = <.0001
BMI -8.4(2.2) -0.28 -12.8 -3.9 p = <.0001
GJH (Beighton ≥4) -75.5(10.5) -0.55 -96.5 -54.5 p = <.0001
Muscle Strength (N) 0.04(0.02) 0.20 0.03 0.08 p = .034
Pain intensity (mm) 0.48(0.25) 0.14 -0.29 0.98 p = .064
Fatigue (CIS) -0.58(0.28) -0.18 -1.14 -0.02 p = .044
1 Regression equitation: 6MWT = 81.5(dance: 0/1) + -.8.4(BMI) + -.75.5(GJH: 0/1)) + .04(Muscle) + -.58(fatigue)
Panel 2c Functional status (capacity): Jumping capacity
Dependent Predictor B (SE) ß 95% CI for B p-value
SQH2 Age .44(1.1) 0.04 -1.66 2.54 p = .678
Non-dancer vs dancer 18.1(5.5) 0.39 7.12 29.03 p = .002
BMI -0.81(1.1) -0.08 -2.94 1.32 p = .451
GJH (Beighton ≥4) -11.2(5.1) -0.24 -21.29 -1.16 p = .029
Muscle Strength (N) 0.02(0.1) 0.36 0.01 0.04 p = .009
Pain intensity (mm) -0.26(0.1) -0.23 -0.49 -0.02 p = .033
Fatigue (CIS) -0.08(0.1) -0.07 -0.35 0.19 p = .573
SH3 Age 1.14(1.1) 0.11 -0.95 3.24 p = .279
Non-dancer vs dancer 15.3(5.5) 0.34 4.35 26.17 p = .007
BMI -1.49(1.1) -0.17 -3.61 0.63 p = .165
GJH (Beighton ≥4) -10.1(5.0) -0.22 -20.19 -0.08 p = .048
Muscle Strength (N) 0.01(0.01) 0.06 -0.01 0.02 p = .650
Pain intensity (mm) -0.12(0.1) -0.11 -0.36 0.12 p = .322
Fatigue (CIS) -0.14(0.1) -0.14 -0.41 0.12 p = .289
2 Regression equitation: SQH = 18.1(Dance: 0/1) +-11.2(GJH: 0/1) + .02(Muscle) + -.3(pain)
3 Regression equitation: SH = 15.3(Dance: 0/1) +-10.1(GJH: 0/1)
Note: Total PAL: R 2 : .060, 6MWT: R 2= .678, SQH: R 2= .399, SH: R 2= .349
1. Abbreviations: ß (standardized beta), Body Mass Index (BMI), Generalized Joint Hypermobility (GJH), Total Physical Activity level (PAL), Metabolic Equivalent Tasks (METS), Six minute walk test (6MWT), Square Hop (SQH), Side hop (SH), Newton (N), Checklist Individual Strength (CIS) Significant associations are presented in bold.