Search results

1

Investigation of Localised Pressure Applied to Specific Sites on the Lateral Aspect of the Foot’s Dorsum by the Upper Parts of Footwear During Sports Specific Movements

100%

Greenhalgh A., Sinclair J., Chockalingam N.

Human Movement

|

2012

|

vol. 13

|

issue 4

350-354

EN

Purpose. Localised peak pressure linked to overuse injuries has been documented extensively at the plantar surface during human locomotion. There is however a paucity of research investigating pressure applied to non-plantar regions of the foot during movement. This study investigates the magnitudes of peak pressures applied to the lateral side of the 5th metatarsal head (5MTH) and calcaneus (CC) by the uppers of footwear during sports movements. Method. A plantar pressure measuring system was adapted to fit into a sock covering the lateral aspect of the L5MTH and LCC. Six male participants (26.7 ± 2.4 years, 75.2 ± 5.5 kg) performed ten trials each of starting, stopping, sprinting, cutting and sidestepping at self-selected velocities, whilst wearing the pressure measuring device. Repeated measures ANOVA’s were used to examine differences between peak pressures at different aspects of the lateral side of the dorsum of the foot. Results. The results indicate significant differences (p 0.05) between peak pressures at the LCC compared to the L5MTH. Significant differences in peak pressure at the L5MTH were also found between movement strategies. No significant differences (p > 0.05) were reported at the LCC between different movements. Conclusions. The results identify a need for athletes pre-disposed to injuries in the uppers of the feet to consider the possible influence of footwear on the magnitudes of peak pressures applied to the lateral side of the dorsum of their feet.

2

Effect of Technological Parameters on the AlSi12 Alloy Microstructure During Crystallization Under Pressure

88%

Ščury J., Brůna M., Bolibruchová D., Pastirčák R.

Archives of Foundry Engineering

|

2017

|

vol. 17

|

issue 2

3

Quality of balance and pressure distribution beneath the foot during double-leg stance in young women

88%

Korvas P.

Physical Activity Review

|

2019

|

issue 7

71-79

EN

One from the important preconditions for optimal performance of all physical activities is a good quality of balance. Aim of Study: The study is focusing to find out the effect of pressure distribution beneath the foot on the balance and to compare the quality of balance in physically active and inactive young women. Material and Methods: Subjects of our study were two groups of healthy young women. A: physically active women (n=28; age 21.5 years; physical activity 8.8 hour/week), B: physically inactive (n=28; age 22,0 years; physical activity 1.3 hour/week). Three balance test we carried out: double-leg stance, eyes open (EO) and closed (EC) for 30 second, one-leg stance (right, left) for 10 second. Pressure walkway (FDM system, fi. Zebris) was used for data collection. Parameters: COPv: velocity of centre of pressure (mm/s), relative value of average pressure beneath the foot (%). Results: We found out that a physically active group of young women have significantly better results in all tests (p≤0.05). Both groups showed a similar tendency for significant deterioration of the results when elimination the support surface or the visual sensor in relation to the basic OE test. The differences in the distribution of pressures between the groups were significant in the M-L directions. Inactive women significantly more loaded the non-preferred leg and the rear part of the foot. Active women showed a more balanced stance in both directions, with a slight tendency to increase the loading on the front part of foot. Conclusion: It was confirmed that the group B has a partly worse characteristics of balance than physically active peers. The foot load strategy was less favourable for the group B; during EO. Only two interesting correlations were found in active women; between COPv and ratio of feet load. Remaining correlations to COPv were low.

4

Pęcherzyki w szkliwie mołdawitów

88%

Brachaniec T., Szczyrba M.

Acta Societatis Metheoriticae Polonorum

|

2014

|

vol. 5

17-20

EN

Bubbles in tektites can be formed by several different mechanisms. A review of published data has shown that the gas pressure in the bubbles is generally low. Composition of the contained gases published in most articles sharply differs from the composition of the terrestrial atmosphere.

5

New type of Piezoresistive Pressure Sensors for Environments with Rapidly Changing Temperature

88%

Tykhan M., Ivakhiv O., Teslyuk V.

Metrology and Measurement Systems

|

2017

|

vol. 24

|

issue 1

6

High temperature and pressure effects on the elastic properties of B2 intermetallics AgRE

88%

Liu L., Wu X., Li W., Wang R., Liu Q.

Open Physics

|

2015

|

vol. 13

|

issue 1

EN

The high temperature and pressure effects on the elastic properties of the AgRE (RE=Sc, Tm, Er, Dy, Tb) intermetallic compounds with B2 structure have been performed from first principle calculations. For the temperature range 0-1000 K, the second order elastic constants for all the AgRE intermetallic compounds follow a normal behavior: they decrease with increasing temperature. The pressure dependence of the second order elastic constants has been investigated on the basis of the third order elastic constants. Temperature and pressure dependent elastic anisotropic parameters A have been calculated based on the temperature and pressure dependent elastic constants.

7

The Effects of Pressure During the Crystallization on Properties of the AlSi12 Alloy

75%

Pastirčák R., Ščury J., Moravec J.

Archives of Foundry Engineering

|

2017

|

vol. 17

|

issue 3

8

Influence of Casting Wall Thickness on Crystallisation Under Pressure

75%

Pastirčák R., Ščury J., Brůna M., Bolibruchová D., Jakubski J.

Archives of Metallurgy and Materials

|

2018

|

vol. 63

|

issue 4

9

Multiparameter Assessment of the Gas Forming Tendency of Foundry Sands with Alkyd Resins

75%

Mocek J.

Archives of Foundry Engineering

|

2019

|

vol. 19

|

issue 2

Refine search results

Investigation of Localised Pressure Applied to Specific Sites on the Lateral Aspect of the Foot’s Dorsum by the Upper Parts of Footwear During Sports Specific Movements

Effect of Technological Parameters on the AlSi12 Alloy Microstructure During Crystallization Under Pressure

Quality of balance and pressure distribution beneath the foot during double-leg stance in young women

Pęcherzyki w szkliwie mołdawitów

New type of Piezoresistive Pressure Sensors for Environments with Rapidly Changing Temperature

High temperature and pressure effects on the elastic properties of B2 intermetallics AgRE

The Effects of Pressure During the Crystallization on Properties of the AlSi12 Alloy

Influence of Casting Wall Thickness on Crystallisation Under Pressure

Multiparameter Assessment of the Gas Forming Tendency of Foundry Sands with Alkyd Resins