Total Sample

Adolescents

Adults

p

Demographics

Sex, Female^*

Ethnicity, Non-Hispanic/Latino^*

Race

White/Caucasian^*

N = 68

47 (69.1)

62 (91.2)

N = 67

58 (86.6)

N = 28

17 (60.7)

27 (96.4)

N = 28

23 (82.1)

N = 40

30 (75.0)

35 (87.5)

N = 39

35 (89.7)

0.210

0.389

0.474

Age

Years^†

N = 67

21 (14, 33)

N = 28

14 (12, 15)

N = 39

32 (24, 37)

< 0.001

Body Anthropometrics

Height, m^†

Weight, kg^†

Body Mass Index Classification^*

Underweight

Healthy

Overweight

Obese

N = 65

1.52 (1.45, 1.61)

50.5 (40.8, 61.2)

9 (13.8)

38 (58.5)

12 (18.5)

6 (9.2)

N = 27

1.50 (1.42, 1.57)

41.3 (34.0, 49.0)

7 (25.0)

17 (63.0)

2 (7.4)

1 (3.7)

N = 38

1.57 (1.49, 1.63)

57.6 (51.2, 66.7)

2 (5.3)

21 (55.3)

10 (26.3)

5 (13.2)

0.048

< 0.001

0.022

Bone Health

Osteopenia^*

Osteoporosis^*

History of Lower-limb Fracture^*

Vitamin D Prescription^*

N = 68

11 (16.2)

4 (5.9)

23 (33.8)

27 (39.7)

N = 28

4 (14.3)

1 (3.6)

8 (28.6)

12 (42.9)

N = 40

7 (17.5)

3 (7.5)

15 (37.5)

15 (37.5)

1.000

0.638

0.444

0.657

Orthopedic Surgical History

Number of Upper-limb Surgeries^†

Number of Lower-limb Surgeries^†

Spinal Surgery^*

N = 67

1 (0, 3)

5 (3, 8)

13 (19.4)

N = 28

2 (0, 3)

5 (3, 7)

5 (17.9)

N = 39

0 (0, 2)

5 (2, 8)

8 (20.5)

0.197

0.660

0.786

Mobility Aids

Wheelchair use^*

Home Mobility

Community Mobility
No assistive device use^*

Home-Ambulation

Community-Ambulation

N = 68

8 (11.8)

19 (27.9)

56 (82.4)

41 (60.3)

N = 28

1 (3.6)

7 (25.0)

24 (85.7)

18 (64.3)

N = 40

7 (17.5)

12 (30.0)

32 (80.0)

23 (57.5)

0.128

0.651

0.748

0.574

Fall History

≥ 1 fall^*

≥ 2 falls^*

Injurious fall^*

Medical treatment necessary^*

Hospitalization^*

N = 68

53 (77.9)

48 (70.6)

20 (29.4)

10 (14.7)

0 (0.0)

N = 28

25 (89.3)

25 (89.3)

9 (32.1)

5 (17.9)

0 (0.0)

N = 40

28 (70.0)

23 (57.5)

11 (27.5)

5 (12.5)

0 (0.0)

0.078

0.005

0.679

0.730

--

Functional Mobility

Floor-to-Stand Transfer without support^*

Floor-to-Stand Transfer with support^*

N = 68

27 (39.7)

52 (76.5)

N = 28

14 (50.0)

22 (78.6)

N = 40

13 (32.5)

30 (75.0)

0.147

0.733

Activity Level

Saltin-Grimby Physical Activity

Level Scale^*

Level I

Level II

Level III

Level IV

N = 66

20 (30.3)

28 (42.4)

12 (18.2)

6 (9.1)

N = 26

7 (26.9)

8 (30.8)

7 (26.9)

4 (15.4)

N = 40

13 (32.5)

20 (50.0)

5 (12.5)

2 (5.0)

0.157