Effects of abdominal draw-in maneuver in combination with ankle dorsiflexion in strengthening the transverse abdominal muscle in healthy young adults and patients with low back pain
Year: 2011
Type: dissertation
Study design: Clinical Trial
Abstract: The abdominal draw-in maneuver (ADIM) is the most common in the core stabilization exercise. However, applying ADIM to the patients with low back pain (LBP) is not easy due to pain factor and weakness of deep abdominal muscle. These studies were designed to examine the effect of new method of ADIM combined with resisted ankle dorsiflexion training on the deep abdominal muscle.In the first study, forty healthy adults were allocated at random to the experimental group or the control group. The experimental group performed the ADIM in combination with ankle dorsiflexion, and the control group performed the ADIM alone, five times a day. Ultrasound (US) image and electromyography (EMG) were used to determine the intervention-related changes in muscle activity and the thickness of abdominal muscles during the ADIM or the ADIM in combination with ankle dorsiflexion. A significant difference was found in the thickness of the transverse abdominal (TrA) muscle between the groups (mean difference 0.24 ㎝). A significant difference was demonstrated in the amplitude of the TrA/internal oblique (IO) muscle contraction between the two techniques in the experimental group (mean difference 68.76㎷). The intra-class correlation coefficient showed excellent test–retest reliability of US image measurement of the abdominal muscles: 0.96 for the TrA muscle, 0.87 for the IO muscle and 0.77 for the EO muscle.In the second study, both the LBP group and the healthy group received ten 30-minute sessions of ADIM combined with ankle dorsiflexion over a two-week period. A separate mixed-model analysis of variance was computed for the TrA, IO, and EO muscle thicknesses. The differences in mean and peak EMG amplitudes, onset time, and latency were compared between the groups. The visual analog pain scale, pain disability index, and pain rating scale were used to assess pain in the LBP group before and after the intervention. There was a significant interaction between the LBP group and the healthy groups and a main effect for pre-/post-test were obtained for only TrA muscle thickness change. Significant differences in mean and peak EMG amplitudes, onset time, and latency were achieved between the groups. Significant reductions in all pain measures were observed after training.This is the first clinical study to demonstrate that ADIM combined with ankle dorsiflexion training may result in a morphological change in the TrA muscle and associated pain management in patients with LBP.
Author: 천승철
Language: English
Field: Health Professions
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2744284893