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"Analiza morfologiczna" metodą systemowego projektowania budowy przestrzennej obcasa

100%

Zmyslowska-Rejczak B. , Olszewski A.

Przegląd Skórzany

1988

tom 43

nr 09

Dynamiczna metoda badania trwałości przymocowania obcasów w obuwiu damskim

75%

Stanislawska Z. , Ruszkiewicz B. , Kinalski Z.

Przegląd Skórzany

1989

tom 44

nr 05

Badania sił działających na obcasy podczas chodzenia

75%

Jablonska J. , Malenczak J.

1986

tom 41

nr 05

Metody badania i oceny stabilności obcasów w obuwiu damskim

75%

Grosicka M.

Przegląd Skórzany

1988

tom 43

nr 08

Changes of bioelectrical activity in cervical paraspinal muscle during gait in low and high heel shoes

63%

Mika A. , Oleksy Ł. , Mikołajczyk E. , Marchewka A. , Mika P.

Acta of Bioengineering and Biomechanics

2011

tom Vol. 13, no. 1

27-33

High heel footwear may be destructive for the spine because of an increased erector spinae muscle bioelectrical activity and increased ground reaction forces affecting lower limbs and the spine. The aim of this study was to evaluate the changes of bioelectrical activity in cervical paraspinal muscle during gait in low and in high heel shoes in different age groups. In 31 women aged 20-25 years and in 15 women aged 45-55 years without neck pain, the bioelectrical activity of the cervical paraspinal muscle was assessed during gait on flat surface with natural speed in three conditions: without shoes, in low (4 cm) and in high (10 cm) heel shoes. Higher bioelectrical activity cervical paraspinal muscle was noted during gait in high heel shoes in comparison to gait without shoes. The changes were more pronounced in the group of subjects aged 45-55 years. The prolonged wearing of shoes with stiletto type heels by individuals without neck pain is not safe for their spine and may lead to chronic paraspinal muscle fatigue.

Evaluation of the influence of low and high heel shoes on erector spine muscle bioelectrical activity assessed at baseline and during movement

63%

Mika A. , Oleksy Ł. , Mikołajczyk E. , Marchewka A.

Medical Rehabilitation

2009

tom 13(3)

9-18

Introduction: Back pain due to the wearing of high heel shoes may result from increased erector spine activity and also from higher proximal ground reaction forces or center of body mass dislocation.Aim: The assessment of changes in the erector spine muscle due to the non-physiological foot position in low and high heel shoes.Material and Methods: In 31 women aged 20-25 years (height 167,6 ±5.8 cm; weight 60,35 ±6,49 kg) without back pain, the bioelectrical activity of the erector spine muscle was assessed. A lumbar spine sequence test was performed without shoes and in low (4 cm) and in high (10 cm) heel shoes. Muscle activity on the right and left sides was evaluated at baseline and during movement. The mean and peak signal value were compared between 3 measurements (without, in low and in high heel shoes).Results: A statistically significant increase in erector spine activity was observed in Trunk Flexion (p<0,05) and during Flexion-Relaxation Position (p<0,05) when wearing high hell shoes. Those variables correlated significantly in all 3 measurements (without, in low and in high heel shoes). A significant correlation was noted between the Flexion-Relaxation Position and Extension/Flexion Ratio (p<0,05). Bioelectrical erector spine activity differed significantly during Rotation Right and Rotation Left in all 3 measurements respectively (p<0,05).Conclusion: The prolonged wearing of shoes with stiletto type low and high heels by individuals without back pain is not safe for their spine and may lead to chronic paraspinal muscle fatigue

Syntetyczne materiały na spody obuwia

63%

Lipski R.

Przegląd Skórzany

1989

tom 44

nr 05

Sorpcja energii obcasa w obuwiu roboczym

51%

Hlavacek P. , Litvinekova V. , Mladek M.

Przegląd Skórzany

1988

tom 43

nr 04

Wkladka uziemiajaca w obcasie buta

32%

Leja I.

Atest

2002

nr 02