In the course of pregnancy, especially during the last trimester of pregnancy, the demand for special footwear for pregnant women is very important.
Under normal conditions, the size and shape of human feet will be more or less different during the day. This change is acceptable in the human foot soft tissue, that is, this The amount of change is tolerable in tolerable range). However, the range of tolerance can be related to tolerable time. Simply put, the shorter the time is, the more tolerable the range is, and the longer the time is, the less tolerable the range is.
Therefore, under the condition of an average day's 8 hours, the best tolerance for foot circumference or slightly fittings is 3-5mm.
Pregnant women's feet are a more complex condition with many physiological changes. The amount of foot circumference change (swelling) in a day is between 10-25mm, which is far beyond the tolerable range of human feet. The change in maternal foot shape is limited to changes in circumference (fat), and the change in foot length is a change in weight (ie, sitting, standing and walking), and the average of sitting and standing. The variation is about 4-7mm, and the average change in standing and walking is about 3-6mm.
Therefore, during pregnancy, especially during the last trimester of pregnancy, the demand for special footwear for pregnant women is very important.
Select the size of pregnant women shoes should pay attention to the following several principles:
(1) footwear size (size)? S depends on the length of the foot, must pay attention to the sitting, standing and walking extension of the amount, about 10mm more than the length of the foot.
(2) Choose a shoe with a round head and a wide fatness and a soft upper material.
(3) The shoe type is selected to be open type, that is, lace-up or velcro is preferred, and secondly, an elastic band or an adjustable width footwear style may be selected.
(4) During the ten months of pregnancy, different shoes can be exchanged between the previous period (0-6 months) and the latter period (6-10 months), ie, the shoes for pregnant women and the shoes for pregnant women, and the shoes for pregnant women should be appropriate for the latter period. Choose a heelcup with a guarantee device.
(5) Buying a maternity shoe should pay attention to the heel height. The ideal heel height is: 15-30mm. Although the flat shoes are acceptable, they will increase as the weight of the pregnant woman increases and the step moves back. Affected, in the postpartum will often bring plantar fasciitis ... ... heel area discomfort.
(6) Finally, the outsole should have a good endurance and good slip resistance (such as double-density PU material).
The above is the place to pay attention to the general purchase of pregnant women's shoes. If abnormal symptoms at the end of pregnancy have already occurred, it must be treated with a doctor's treatment and other special footwear devices.
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