Postural Changes During Exteroceptive Thin Plantar Stimulation: The Effect of Prolonged Use and Different Plantar Localizations

AbstractTo explore the effectiveness of microgravity simulated by head-down bed rest (HDBR) and artificial gravity (AG) with exercise on lung function. Twenty-four volunteers were randomly divided into control and exercise countermeasure (CM) groups for 96 h of 6° HDBR. Comparisons of pulse rate, pulse oxygen saturation (SpO2) and lung function were made between these two groups at 0, 24, 48, 72, 96 h. Compared with the sitting position, inspiratory capacity and respiratory reserve volume were significantly higher than before HDBR (0° position) (P< 0.05). Vital capacity, expiratory reserve volume, forced vital capacity, forced expiratory volume in 1 s, forced inspiratory vital capacity, forced inspiratory volume in 1 s, forced expiratory flow at 25, 50 and 75%, maximal mid-expiratory flow and peak expiratory flow were all significantly lower than those before HDBR (P< 0.05). Neither control nor CM groups showed significant differences in the pulse rate, SpO2, pulmonary volume and pulmonary ventilation function over the HDBR observation time. Postural changes can lead to variation in lung volume and ventilation function, but a HDBR model induced no changes in pulmonary function and therefore should not be used to study AG CMs.

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Postural Changes in Essential Hypertension under Treatment and their Effect on the Renogram

Nuklearmedizin ◽

10.1055/s-0038-1624732 ◽

1971 ◽

Vol 10 (01) ◽

pp. 39-46

Author(s):

C. Alexandrou ◽

E. Papadakis ◽

E. Gyftaki ◽

J. Darsinos

Keyword(s):

Renal Function ◽

Essential Hypertension ◽

Early Diagnosis ◽

Postural Hypotension ◽

Antihypertensive Treatment ◽

Normal Subjects ◽

Upright Position ◽

Postural Changes ◽

Significant Impairment

SummaryRadioisotope renograms were obtained in the upright and prone position in 9 normal subjects, in 5 patients with untreated essential hypertension and in 21 hypertensives under treatment, showing moderate postural hypotension.No significant renographic change were seen in the two positions in normal subjects and untreated hypertensives. Treated hypertensives with postural hypotension showed significant impairment of renal function in the upright position in 15 cases and no change in 6. Renal creatinine clearance was lower in the group that showed renographic changes. Renography in the upright position is suggested as a convenient test for early diagnosis and follow-up of the adverse effects of antihypertensive treatment.

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Effect of postural changes on intraocular pressure in patients with acute angle-closure glaucoma in Indian population

Latin American Journal of Ophthalmology ◽

10.25259/lajo_18_2019 ◽

2020 ◽

Vol 3 ◽

pp. 2

Author(s):

Sanjay Mishra ◽

Ashok Kumar

Keyword(s):

Intraocular Pressure ◽

Acute Angle ◽

Angle Closure Glaucoma ◽

Angle Closure ◽

Sitting Position ◽

Rebound Tonometer ◽

Antiglaucoma Medication ◽

Primary Angle Closure Glaucoma ◽

Postural Changes ◽

Healthy Control

Objective: The objective of the study was to compare the posture-induced intraocular pressure (IOP) changes in primary angle-closure glaucoma (PACG) with or without glaucoma medications, and healthy control eyes with normal IOPs in Indian subjects. Materials and Methods: The IOP was measured in the sitting position and the supine position after 10, 20, and 30 min with a rebound tonometer. Results: Twenty-five patients with PACG and 30 controls with normal IOPs were studied. The IOP in the sitting position measured with the rebound tonometer was 13.8 + 3.2 mm Hg in eyes with PAC, and 12.9 + 2.9 mm Hg in eyes with normal IOPs. The IOP increased to 14.4 mm Hg, 16.8 mm Hg, and 18.9 mm Hg at 10 min, 20 min, and 30 min in PACG subjects. In normal age-matched controls, the IOP increased to 13.4 mm Hg, 14.9 mm Hg, and 17.8 mm Hg at 10 min, 20 min, and 30 min, respectively, but none of these differences were significant (P = 0.09; P = 0.08, P = 0.08). The mean postural IOP change from baseline was also not significant between the two groups. Only three patients were on single antiglaucoma medication with well-controlled IOP in the PACG group. Conclusions: Postural IOP changes are comparable among eyes with PACG with and without glaucoma medications, and control eyes.

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FRI0415 BODY MASS INDEX AND STATIC FOOT DISORDERS IN GONARTHROSIC PATIENTS

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2020-eular.6337 ◽

2020 ◽

Vol 79 (Suppl 1) ◽

pp. 806.3-806

Author(s):

K. Maatallah ◽

M. Hfaidh ◽

H. Ferjani ◽

W. Triki ◽

D. Kaffel ◽

...

Keyword(s):

Body Mass Index ◽

Body Mass ◽

Demographic Data ◽

Navicular Bone ◽

Hindfoot Alignment ◽

Knee Oa ◽

Postural Changes ◽

Flat Feet ◽

Foot Posture ◽

Hindfoot Deformities

Background:Several studies have shown that there is a link between body mass index (BMI) and painful foot imputed to a biomechanical change in foot structure [1].Objectives:Our objective was to study the association between BMI and static foot disorders in gonarthrosic subjects.Methods:It was a prospective descriptive study conducted in the rheumatology department of the Mohamed Kassab Institute of Orthopedics with 60 patients with Gonarthrosis. The socio-demographic data of the patients were studied. BMI was calculated for all patients. Static foot disorders have been studied.Results:Sixty patients were included, 83.3% of whom were female. The average age was 55.2 years [38-78 years]. The disease has been evolving for an average of 6 years [1-13 years]. The lesion was bilateral in 80% of cases, the average body mass index was 30.4 kg / m2 [24-36]. Knee arthritis was classified as stage I, II and III according to the Kellgren and Lawrence classification in 18.5%, 55.6% and 25.9% of patients respectively. The foot examination involved 108 gonarthrosic limbs. Examination of the integuments showed hyperkeratosis in 94.4% of the cases (79.6% calluses and 83.3% callosities). Forefoot deformities were Hallux valgus (HV) in 52.8% of cases and overlapping toes in 18.5% of cases. Pronation deformity using the Foot Posture Index (FPI) was found in 51.9% of cases. Abnormal lowering of navicular bone was noted in 51.9%. The podoscopic impression revealed flat feet in 73.2% of the cases.A statistically significant association was found between BMI and the presence of calluses (31.21 ± 2.897 vs26.83 ± 1.425, p <0.001), with HV (31.37 ± 3.086 vs29.49 ± 2.969, p = 0.002), at the overlap of the toes (33.2 ± 1.361vs29.86 ± 1.130, p <0.001), with the lowering of the navicular bone (31.17 ± 2.885vs29.68 ± 3.304, p = 0.015), FPI (p = 0.003) and flat podoscopic impression (p <0.001).Conclusion:BMI is strongly associated with static feet disorders in gonarthrosic patients by aggravating the postural changes in the foot caused by knee osteoarthritis [2]. Obesity is associated mainly with the existence of flat feet, pronation of the foot, toes deformities and hyperkeratosis.References:[1]Steele JR, Mickle KJ, Munro B. Fat flat frail feet: how does obesity affect the older foot. XXII Congress of the International Society of Biomechanics; 2009[2]Norton AA, Callaghan JJ, Amendola A, Phisitkul P, Wongsak S, Liu SS, et al. Correlation of knee and hindfoot deformities in advanced knee OA: compensatory hindfoot alignment and where it occurs. Clin Orthop Relat Res. 2015;473(1):166-74Disclosure of Interests:None declared

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Intraocular pressure and choroidal thickness postural changes in multiple system atrophy and Parkinson’s disease

Scientific Reports ◽

10.1038/s41598-021-88250-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Maddalena De Bernardo ◽

Giulio Salerno ◽

Marco Gioia ◽

Luigi Capasso ◽

Maria Claudia Russillo ◽

...

Keyword(s):

Parkinson’S Disease ◽

Parkinson's Disease ◽

Intraocular Pressure ◽

Multiple System Atrophy ◽

Choroidal Thickness ◽

Corneal Thickness ◽

Standing Position ◽

Sitting Position ◽

Postural Changes ◽

Iop Measurement

AbstractTo evaluate intraocular pressure (IOP) and choroidal thickness (ChT) postural changes in multiple system atrophy (MSA), Parkinson’s disease (PD) patients and healthy controls (HC). 20 MSA patients, 21 PD patients and 14 HC, were examined. All subjects underwent a complete examination, including corneal thickness, ChT, IOP and axial length (AL) measurements. IOP measurement was performed in supine, sitting, and standing positions, whereas ChT in sitting and standing positions. Supine to standing IOP variations were significantly higher in MSA vs PD(p = 0.01) and in MSA vs HC (p < 0.0001), whereas no significant differences were observed between PD and HC (p = 0.397). Mean sub-foveal ChT in MSA was 240 ± 92 μm in sitting position, and 215 ± 94 μm in standing position with a significant reduction (p = 0.008). Mean sub-foveal ChT in PD was 258 ± 79 μm in sitting position, and 259 ± 76 μm in standing position (p = 0.887). In HC it was 244 ± 36 μm in sitting position, and 256 ± 37 μm in standing position with a significant increase (p = 0.007). The significant IOP and ChT postural changes can be considered additional hallmarks of autonomic dysfunction in MSA and further studies are needed to consider them as biomarkers in the differential diagnosis with PD.

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How Can We Manage Gallbladder Lesions by Transabdominal Ultrasound?

Diagnostics ◽

10.3390/diagnostics11050784 ◽

2021 ◽

Vol 11 (5) ◽

pp. 784

Author(s):

Shinji Okaniwa

Keyword(s):

High Frequency ◽

Layer Structure ◽

Wall Layer ◽

Pancreaticobiliary Maljunction ◽

Doppler Imaging ◽

Wall Thickening ◽

Contrast Enhanced ◽

Postural Changes ◽

Venous Phase

The most important role of ultrasound (US) in the management of gallbladder (GB) lesions is to detect lesions earlier and differentiate them from GB carcinoma (GBC). To avoid overlooking lesions, postural changes and high-frequency transducers with magnified images should be employed. GB lesions are divided into polypoid lesions (GPLs) and wall thickening (GWT). For GPLs, classification into pedunculated and sessile types should be done first. This classification is useful not only for the differential diagnosis but also for the depth diagnosis, as pedunculated carcinomas are confined to the mucosa. Both rapid GB wall blood flow (GWBF) and the irregularity of color signal patterns on Doppler imaging, and heterogeneous enhancement in the venous phase on contrast-enhanced ultrasound (CEUS) suggest GBC. Since GWT occurs in various conditions, subdividing into diffuse and focal forms is important. Unlike diffuse GWT, focal GWT is specific for GB and has a higher incidence of GBC. The discontinuity and irregularity of the innermost hyperechoic layer and irregular or disrupted GB wall layer structure suggest GBC. Rapid GWBF is also useful for the diagnosis of wall-thickened type GBC and pancreaticobiliary maljunction. Detailed B-mode evaluation using high-frequency transducers, combined with Doppler imaging and CEUS, enables a more accurate diagnosis.

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