Table 3.

Mean values of physical performance tests, range of motion, and muscle strength

Variables	Mean ± SD	Minimum − maximum
Physical performance tests
Functional reach Test (cm)	30.1 ± 4.9	18 − 45
5 m gait test (s)	3.3 ± 0.7	2.5 − 6.9
Four square step test (s)	6.7 ± 1.8	4.3 − 17.0
Timed up and go test (s)	6.9 ± 1.5	4.6 − 15.7
Five times sit-to-stand test (s)	7.5 ± 2.0	4.3 − 14.7
Range of motion (degree)
Hip flexion	122.6 ± 10.8	53 − 144
Hip extension	16.8 ± 4.5	8 − 27
Knee flexion	127.6 ± 8.3	104 − 144
Hip internal rotation	27.9 ± 6.1	14 − 47
Hip external rotation	28.5 ± 4.9	17 − 42
Ankle dorsiflexion	17.7 ± 6.0	5 − 31
Ankle plantar flexion	58.0 ± 7.9	28 − 74
Muscle strength (N)
Knee extension strength	174.1 ± 53.3	71.8 − 339.5
Knee flexion strength	80.2 ± 27.7	27.0 − 164.5