We have carried out scientific experiments to prove that the newly launched rehabilitation walking aid is really effective!

Rehabilitation Walker

Walking assistant walking device, which is based on the principle of passive walking, uses the potential energy of its own movement to improve the flexion and extension during walking disabled gait walking hip. From this point on, although the use of walking aids has been observed to increase and improve the angle range of the lower limb joints, the scientific demonstration of the body changes after the use of the Alec walker is not complete. The purpose of this study is to verify the gait changes of young and old people after using the Alec Walker through the analysis of movement and lower limb muscle activity.

We found 17 young patients (average age 25.1 ± 3.8 years, male 9) and 13 old people (average age 76.9 ± 4.3 years, male 7). Three dimensional motion analysis and electromyogram analysis were carried out by walking without walking aids and walking after wearing AIDS. The auxiliary torque for the hip joint of elec's walker is set to 6nm in flexion and extension direction, and the use time is 3 minutes. Three dimensional motion analysis device and ground reaction force meter were used to measure the angle, internal moment and force of lower limb joint when walking. The target muscles of EMG analysis are gluteus maximus, gluteus medius, rectus femoris, lateral femoris, biceps femoris, anterior tibialis, and right side of soleus. In each case, three times of walking data were measured and analyzed using the average of three times. For each measurement item, after the two-way analysis of measurement time (before and after use) in the youth group and the elderly group, the results observed in the two groups were compared.

Rehabilitation Walker legs

The results showed that the walking speed increased significantly (1.19 ± 0.15 M / s before use and 1.27 ± 0.13 M / s after use). In the comparison of step length, it was found that the young group was 0.64 ± 0.06 m before wearing the walker, 0.65 ± 0.05 m after using the walker, the old group was 0.58 ± 0.06 m before wearing the walker, and 0.63 ± 0.06 m after using the walker. The results of walking rate showed that there was a great change in the young group, 118 ± 7 steps / min before use, 121 ± 9 steps / min after use, while in the old group, 116 ± 11 steps / min before use, 115 ± 12 steps / min after use. The maximum bending angle of hip was 12.6 ± 7.2 degrees before use and 14.6 ± 8.4 degrees after use. The maximum extension angle of hip increased significantly after use. In addition, the hip joint extension torque and hip extensor were significantly increased during the use of the Alec walker. The knee joint, with an increase in the flexion angle and the extension moment of the load response phase, was observed to be increasing after using the mid-term angle of the maximum flexion free leg. On the other hand, it was found that the knee flexion moment of the late swing leg increased significantly only in the elderly group. There was no significant change in ankle angle before and after using the assist. In the analysis of EMG, the muscle activity of gluteus maximus increased significantly in the post standing period. In addition, significant interaction was observed in rectus femoris during standing period, but only in the elderly group.

Conclusion: it can be seen from the research results that walking assistance is effective for improving walking speed after use. Although there was no statistical evidence, young people tended to increase the walking rate (P = 0.07), and a significant increase in step length was observed in the elderly. It can be seen that the increase of walking rate of young people and the increase of step length of old people are the main factors of the increase of walking speed. With the change of muscle activity related to the change of hip extension torque, it is considered that the glottic muscle activity increases. In addition, the use of walking aids can significantly strengthen the hip flexion muscles and help the elderly to increase step length. The fact that the change of walking behavior observed after the use of walking aids proves one aspect of the usefulness of the walking aids. Recently, robot rehabilitation research and clinical application have shown that: physical therapy research shows that alige walker is likely to become an important means of physical therapy in the future. The results of this study show that walking assisted robots can improve the walking ability of the elderly and the sick, and contribute to the development of physical therapy.