The Influence of Self-Stretching Based on Postisometrical Relaxation, Static Stretching Combined with Stabilizing Exercises, and Stabilizing Exercises Only on the Flexibility of One-Joint and Two-Joint Hip Flexors

Abstract

Background and Objective. The limitations of muscle flexibility are a common dysfunction of the musculoskeletal system. Therefore, various therapeutic techniques are used in rehabilitation programs to increase their flexibility. The aim of this prospective, randomized, single-blind study was to evaluate the changes in the flexibility of hip flexors in children who participated in a 6-week therapeutic program consisting of one physiotherapy session per week with a physiotherapist and daily home exercises. Material and Methods. A total of 94 children aged 10–13 years were randomly assigned to 3 experimental groups: postisometrical relaxation group (PIR group), static stretching combined with stabilizing exercise group (SE/SS group), and stabilizing exercise group (SS group). To assess the flexibility of one- and two-joint hip flexors, the modified Thomas test was used. The examination was conducted by blinded observers. Results. A significant improvement in the flexibility of one-joint hip flexors was documented in all 3 groups (P<0.01). The flexibility of two-joint hip flexors increased significantly only in the SS/SE group (P<0.05). After the program, the highest range of motion of the hip extension (test for one-joint hip flexors) was recorded in the SS/SE group (20.6°±4.5°), and it was significantly greater than in the SE group (16.6°±4.0°, P<0.05). There were no significant differences in the knee flexion (test for two-joint hip flexors) among all 3 groups (P>0.05). Conclusions. The 6-week therapeutic program regardless of the technique applied (postisometrical muscle relaxation, static stretching with stabilizing exercises, and stabilizing exercises only) resulted in the increased flexibility of one-joint hip flexors. Only static stretching combined with stabilizing exercises led to a significant increase in the flexibility of two-joint hip flexors.

Comparative effect of different treatment approaches on lumbar hyperlordosis, respiratory muscle strength, and balance in diplegic children: A randomized controlled clinical trial

“…Previous studies have been conducted in which authors investigated the efficacy of hip extension strengthening and stretching of the hip flexors on lumbar hyperlordosis in adults (Oh et al, 2007;Malai et al, 2015). In another study, the authors established the efficacy of hip flexors and functional stretching exercises on hyperlordosis in infants (Czaprowski et al, 2013). To the best of researcher's knowledge, no studies were found on the various methods and approaches to correct hyperlordosis in children with diplegic CP.…”