جستجوی مقالات مرتبط با کلیدواژه "ارتوز پا" در نشریات گروه "پزشکی"

Idiopathic scoliosis is the most common type of lateral spinal deformity. This study aimed to investigate the effect of eight weeks Schroth corrective exercises and orthosis on dynamic balance in patients with idiopathic scoliosis.

In this quasi-experimental study, 30 adolescent boys with idiopathic scoliosis with a cob angle of more than 10 degrees were randomly divided into three groups (n=10): exercise, orthosis, and control. Subjects in the Schroth exercise group performed selected corrective exercises 3 times a week for 8 weeks, the orthotic group used individually designed foot orthoses for at least 4 hours daily for 8 weeks, and the control group did not receive any special treatment. Y balance test was used before and after the intervention to evaluate the dynamic balance of individuals. The collected data were analyzed by SPSS software version 16 using analysis of covariance.

The results showed that after 8 weeks, the mean scores of dynamic balance in the exercise (99.38±7.11) and orthosis (98.13±4.22) groups were significantly higher than the control group (89.14±4.11) (P<.001), but no significant difference was observed between the orthosis and exercise groups (P=1.000).

According to the results, the Schroth corrective exercise program used in the present study and orthosis can be suggested to improve the dynamic balance of patients with idiopathic scoliosis. It seems that a combination of the two methods of Schroth corrective exercise and orthosis can benefit patients from both treatments.

With aging, the pattern of walking is altered, and the person’s ability to walk will be decreased. Also, with the beginning of the aging process, the coordination of the postural control system was disturbed and lead to an unstable condition. A small biomechanical change in the lower limb is significant on postural control. The use of textured foot orthoses leads to improved efficiency and increased comfort. The purpose of this study was to investigate the effect of textured foot orthoses on ground reaction force components in older adults during walking.

The present study was of a semi-experimental and laboratory type. Twenty-one older adults with available sampling were volunteered to participate in this study. Ground reaction force data were recorded by the Beretc force plates (Beretc CorporationColumbus, OH) during walking without foot orthoses, walking with small and large textured foot orthoses. ANOVA test with repeated measures was used for statistical analysis. All analyzes were performed at the significance level of 0.05.

The results showed a lower peak posterior force amplitude during the heel contact phase while walking with small textured foot orthoses than that walking without foot orthoses (P = 0.003). Time to the peak of vertical force during the heel contact phase was decreased while walking with large textured foot orthoses compared with walking without foot orthoses condition (P = 0.048). Also, time to peak of lateral force during the heel contact phase was increased while walking with small textured foot orthoses compared with walking without foot orthoses condition (P = 0.021).

Using small textured foot orthoses compared to the large textured ones improved most of the ground reaction of elders. However, both small and sizeable textured foot orthoses were not useful on torsion stresses on the body.

Excessive foot pronation is one of the major risk factors for anterior cruciate ligament's injuries.The purpose of the present study was to investigate the immediate effects of anti-pronation foot orthoses with various angles on ground reaction force components during walking.
A total of 15 healthy volunteers (age: 28.2±8.8 years; height: 179.5±8.4 cm; weight: 76.3±13.5 kg; BMI: 23.7±9.1 kg/m2) participated in the study. A Vicon motion analysis system, including four cameras, and two Kistler force plates were used to measure the ground reaction force components in walking with shoes without foot orthoses as well as walking with shoes and three different foot orthoses (10º, 15º, and 20º of lateral inclinations).
In foot orthoses with 20º inclination, the ground reaction force in vertical and medial-lateral directions at initial heel contact was greater than those without foot orthoses by 5% (p=0.02) and 110% (p=0.02), respectively. Impulse, loading rate, and free moment were not different between walking with different foot orthoses compared with those of walking without foot orthoses (p>0.05).
The application of anti-pronation foot orthoses (20º inclination) can reduce the loading rate at propulsion; however, it may impose loads to the knee which consequently place the knee on genu varum position, facilitating medial knee osteoarthritis.

Older adults demonstrate increased amounts of postural sway, which may ultimately lead to falls. The purpose of this systematic review was to investigate the effect of different foot orthoses on lower limb biomechanical variables, lower limb muscular activity, and balance in elderly people. Examining texts based on the search on the Magiran, Google Schoolar, Pubmed, Scopus, and SIVILICA sites were done by using following keywords: foot orthoses, footwear, aging, aged, elderly, Kinematic, walking, loading rate, Kinetic Walking, in combination in four part from 2005 to 2018. In the initial searches, 72 papers were obtained, eight articles based on the inclusion and exclusion criteria were selected. This systematic review demonstrated that the use of textures and modeling orthoses strengthens sensory receptors and improves postures, as well as improves the biomechanical parameters such as evertor and invertor moments and ground reaction forces in some cases.