[CRITERION-RELATED VALIDITY OF SIT-AND-REACH TEST AS A MEASURE OF HAMSTRING EXTENSIBILITY IN OLDER WOMEN].
BACKGROUND
lumbo-sacral posture and the sit-andreach score have been proposed as measures of hamstring extensibility. However, the validity is influenced by sample characteristics.


OBJECTIVE
to determine the validity of lumbo-horizontal angle and score in the sit-and-reach test as measures of hamstring extensibility in older women.


METHODS
a hundred and twenty older women performed the straight leg raise test with both leg, and the sit-and-reach test (SR) in a random order. For the sitand- reach test, the score and the lumbo-sacral posture in bending (lumbo-horizontal angle, L-Hfx) were measured.


CONCLUSIONS
the mean values of straight leg raise in left and right leg were 81.70 ± 13.83º and 82.10 ± 14.36º, respectively. The mean value of EPR of both legs was 81.90 ± 12.70º. The mean values of SR score and L-Hfx were -1.54 ± 8.09 cm and 91.08º ± 9.32º, respectively. The correlation values between the mean straight leg raise test with respect to lumbo-sacral posture and SR score were moderate (L-Hfx: r = -0.72, p < 0.01; SR: r = 0.70, p < 0.01). Both variables independently explained about 50% of the variance (L-Hfx: R2 = 0.52, p < 0,001; SR: R2 = 0.49, p < 0,001).


CONCLUSIONS
the validity of lumbo-sacral posture in bending as measure of hamstring muscle extensibility on older women is moderate, with similar values than SR score.
Facultad de Educación. Universidad de Murcia.. palopez@um.es.
Pedro Ángel
PÁ
López-Miñarro
Cátedra de Traumatología del Deporte. Universidad Católica de Murcia, Murcia.. palopez@um.es.
Raquel
R
Vaquero-Cristóbal
Laboratorio de Kinesiología, Biomecánica y Ergonomía (KIBIOMER Lab.). Universidad de Almería, Almería.. palopez@um.es.
José María
JM
Muyor
Departamento de Terapéutica Médico-Quirúrgica. Universidad de Extremadura, España.. palopez@um.es.
Luis
L
Espejo-Antúnez
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D015577:Geriatric Assessment; D000070633:Hamstring Muscles / Q000502:physiology*; D006801:Humans; D007866:Leg / Q000502:physiology*; D011187:Posture