Anthropometric profile of leg length inequality and its impact on gait / Perfil antropométrico de la desigualdad en la longitud de las piernas y su impacto en la marcha

SUMMARY: Leg length inequality (LLI) affects gait - primarily pelvic and torso movements. LLI is present in around 40-70 % of the healthy population. Due to LLI's significant impact on the body, as well as the possible occurrence of a variety of associated health problems, the aim of this research is to determine whether there is a significant difference in pelvic movement in all three planes, depending on the degree of LLI. This study was conducted on a sample of 30 healthy subjects. The functional length of lower limbs was measured. When LLI was calculated, kinematic measures were taken of pelvic and lower limb movements during gait using 3D cameras and ©Vicon Motion Systems Ltd. UK. The obtained data on kinematic pelvic movement in all three planes during gait were compared with the reference values. The results show that there is no statistically significant difference in pelvic movement about the axes x, y, and z in cases of LLI of up to 18mm (p>0,05). There is a statistically highly significant positive correlation between the difference in functional leg length (r=0,575; p=0,008) and femur length (r=0,525; p=0,015) on one hand, and the difference in pelvic movement about the axis x on the other, compared to the reference values. In a healthy population with LLI from 0 to 18 mm, gait remains unaffected and an increase in LLI predominantly affects pelvic movement about the horizontal axis (x) - pelvic tilt, which exponentially increases with an increase in femur length discrepancy.

La diferencia en la longitud de las piernas (LLI, por sus siglas en inglés) afecta la marcha, principalmente los movimientos pélvicos y del dorso. La LLI está presente en alrededor del 40-70 % de la población sana. Debido al importante impacto de LLI en el cuerpo, así como a la posible aparición de una variedad de problemas de salud asociados, el objetivo de esta investigación fue determinar si existe una diferencia significativa en el movimiento pélvico en los tres planos, dependiendo del grado de LLI. Este estudio se realizó en una muestra de 30 sujetos sanos. Se midió la longitud funcional de los miembros inferiores. Cuando se calculó el LLI, se tomaron medidas cinemáticas de los movimientos pélvicos y de los miembros inferiores durante la marcha utilizando cámaras 3D y ©Vicon Motion Systems Ltd. UK. Los datos obtenidos sobre el movimiento pélvico cinemático en los tres planos durante la marcha se compararon con los valores de referencia. Los resultados mostraron que no existe diferencia estadísticamente significativa en el movimiento pélvico sobre los ejes x, y, y z en casos de LLI de hasta 18 mm (p>0,05). Existe una correlación positiva estadísticamente muy significativa entre la diferencia en la longitud funcional de la pierna (r=0,575; p=0,008) y la longitud del fémur (r=0,525; p=0,015), y la diferencia en el movimiento pélvico sobre el eje x por otro, en comparación con los valores de referencia. En una población sana con LLI de 0 a 18 mm, la marcha no se ve afectada y un aumento en LLI afecta predominantemente el movimiento pélvico sobre el eje horizontal (x) - inclinación pélvica, que aumenta exponencialmente con un aumento en la discrepancia de longitud del fémur.

Persons with Intellectual Disability: Sexual Behaviour, Knowledge and Assertiveness.

BACKGROUND: Persons with ID most often have incomplete, contradictory and imprecise knowledge of sexuality and sexual intercourse itself. They are not provided with sufficient information on their own body and sexuality, and are often discouraged from and sanctioned for trying to sexually express themselves. Sexual abuse due to low sexual assertiveness is also common. AIM: The principal aim of this study was to establish the presence or absence of sexual activity in adults with ID residing in institutional housing, as well as the level and structure of their knowledge of sexuality, their sexual assertiveness and preparedness to react in a sexually dangerous situation. METHODS: The sample consisted of 100 participants with ID residing in institutional housing. The instruments used included the General Sexual Knowledge Questionnaire, What-if test and Hulbert index of sexual assertiveness. Comparative statistics included coefficient of linear correlation and multiple regression analysis. RESULTS: The results showed that 82% of the participants are sexually active. Most participants admitted to sometimes having sexual intercourse against their wishes as well as to having difficulty asserting themselves. Their knowledge of pregnancy, contraception and sexually transmitted diseases was very low. Female participants and those that reported having sexual intercourse had more sexual knowledge and were also more sexually assertive. CONCLUSION: Knowledge of sexuality and sexual assertiveness of persons with ID residing in institutional housing is very low. Additional information on sexuality is necessary, as well as support in learning to express their own desires and to deal with unwanted sexual activity.

Influence of Cognitive and Motor Abilities on the Level of Current Functioning in People with Multiple Sclerosis.

INTRODUCTION: Multiple sclerosis (MS) results in a wide range of disabilities. The effects of cognitive and motor dysfunctions are significant and affect level of functioning in people with MS. OBJECTIVE: The aim of the research was to determine the common contribution of neurological, motor and cognitive status to the overall functioning of MS patients. METHOD: The sample consisted of 108 subjects with RRMS. The instruments used in the research included: The General Questionnaire, the World Health Organization Disability Assessment Schedule, the Audio Recorded Cognitive Screen, Paced Auditory Serial Addition Test, the Nine Hole Peg Test, the 25 Foot Walk Test, and the Expanded Disability Status Scale. RESULTS: Subjects with a mild neurological deficit had a higher level of current functioning in all domains (a lower WHODAS 2.0 score) than subjects with a moderate neurological deficit (r=0.43, p<0.001). We found a positive correlation between the level of cognitive impairment and motor deficits of both upper and lower extremities and the level of neurological deficit (p<0.001). Subjects with lower neurological deficits had significantly lower WHODAS 2.0. scores, i.e. better motor abilities of both upper and lower extremities than subjects with moderate neurological deficits (p<0.001). The greatest contribution to explaining the overall level of current functioning of people with MS had subjects' age, cognitive abilities and motor abilities of the upper extremities. CONCLUSION: Inverse relationship of neurological, motor and cognitive status affects the overall daily functioning of people with MS, requiring planning of comprehensive programs in the rehabilitation of people with MS.

Differentiation of Cognitive Deficit Profiles in Multiple Sclerosis Patients: Latent Profile Analysis.

OBJECTIVE: The purpose of this study was to ascertain whether the application of the Audio Recorded Cognitive Screen (ARCS) in cognitive functioning screening of persons with multiple sclerosis (MS) differentiates profiles of existing cognitive deficits (CDs) and whether this instrument can discriminate accurately between subjects who are cognitively intact (CI) and those with a cognitive disorder. SUBJECTS AND METHODS: The research was conducted on a sample of 359 subjects, with two subsets of participants: 108 persons with a relapsing-remitting form of MS and 251 persons from the general population. RESULTS: We labeled the three profiles obtained by applying the ARCS questionnaire: the CI profile, the profile of CI with visuospatial difficulties, and the profile of persons with CD. CONCLUSION: ARCS has the ability to differentiate persons with a CD from those without, both in a sample of persons suffering from MS and in a sample of persons from the general population. This finding indicates that this instrument is well suited for profiling the cognitive status into specific categories, which puts it among the instruments with a wide range of implementation.