The parents or legal guardians were required completed an informed consent form and attended a demonstration prior to the start of the experiment on behalf of the minor child. Upon meeting the inclusion requirement s and proper documentation participants were randomly divided into 2 groups based on the selection of previously coded envelopes the “treatment …show more content…
Prior to the measurement the examiner using the Posterior superior iliac spice as a landmark to locate S2 spinous process. From there the skin was marked with black marker at T12/L1 and the S1/S2 levels. To evaluate lumbar flexion, the iPhone was placed bottom side on the T2/L2 marker. The participants were instructed to stand in neutral positon with feet shoulder width apart, and then to give their best effort to reach their max lumbar flexion. From the max lumbar position, participants were asked to maximally extend their lumbar spine. The same procedure was done with the iPhone placed on the S1/S2 marker. Calculations of total lumbar flexion and extension were obtained by subtracting the S1/S2 measurements from the T1/T2 measurements