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STARZENIE SIĘ UKŁADU RUCHU KOBIET W BADANIACH IZOKINETYCZNYCH I DENSYTOMETRYCZNYCH

I Środkowo Europejski Kongres Osteoporozy i Osteoartrozy oraz XIII Zjazd Polskiego Towarzystwa Osteoartrologii i Polskiej Fundacji Osteoporozy, Kraków 6-8.10.2005

Streszczenia:
Ortopedia Traumatologia Rehabilitacja 2005, vol 7 (Suppl. 1), s125-126.

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STARZENIE SIĘ UKŁADU RUCHU KOBIET W BADANIACH IZOKINETYCZNYCH I DENSYTOMETRYCZNYCH

Bolanowski M.,1 Skrzek A.2
1 Katedra i Klinika Endokrynologii, Diabetologii i Leczenia Izotopami, A.M. we Wrocławiu, ul. Pasteura 4, 50-367 Wrocław
2 Wydział Fizjoterapii, A.W.F. Wrocław

Słowa kluczowe: układ ruchu, badania izokinetyczne, densytometria, starzenie się

Starzenie się jest kompleksowym procesem cechującym się własną specyfiką i dynamiką. Obniżona wytrzymałość kości łącznie ze zmniejszoną wydolnością fizyczną i upadkami są najczęstszymi przyczynami złamań osteoporotycznych w starszej populacji. Celem badania była analiza procesu starzenia się układu ruchu przez badania izokinetyczne w powiązaniu z oceną densytometryczną.
Badanie przeprowadzono wśród 288 kobiet podzielonych na 4 grupy wiekowe (40-49, 50-59, 60-69, 70-79 lat). Badanie izokinetyczne polegało na ocenie zginaczy oraz prostowników grzbietu i kolan. Badano szybkości kątowe dla zginaczy i prostowników grzbietu 90º/s i 120º/s, a dla mięśni kolan 60º/s i 180º/s. Gęstość kości bliższej nasady uda oceniano metodą DXA.
Stwierdzono zmniejszenie parametrów siły mięśniowej (szczytowy moment siły, całkowita praca, średnia moc, maksymalny przeciętny moment szczytowy) oraz wydłużenie czasu osiągnięcia szczytowego momentu w poszczególnych grupach wiekowych odzwierciedlające pogorszenie wydolności mięśniowej zależnej od wieku. Ponadto stwierdzono zależności parametrów siłowo-prędkościowych mięśni kolan i grzbietu z wynikami badań densytometrycznych. Dodatnie korelacje obserwowano między parametrami siłowymi a BMD, zaś ujemne między parametrami prędkościowymi a BMD.
Potwierdzono zależne od starzenia się pogorszenie parametrów siłowo-prędkościowych mięśni kolan i grzbietu u starszych kobiet. Wraz z wiekiem obniżały się parametry siłowe a wzrastały prędkościowe. Większe pogorszenie czynnościowe występowało w grupie zginaczy niż prostowników, szczególnie stawów kolanowych. Równocześnie obserwowano stopniowe obniżanie się z wiekiem wartości BMD bliższej nasady uda wykazujące zależność z badanymi parametrami siłowo-prędkościowymi.


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THE AGEING PROCESS OF MOTION ORGAN IN WOMEN ASSESSED BY ISOKINETIC AND DENSITOMETRIC STUDIES

Bolanowski M.1, Skrzek A.2
1 Department of Endocrinology, Diabetology and Isotope Therapy, Wrocław Medical University, Pasteura 4, 50-367 Wrocław, Poland
2 Department of Physiotherapy, Wrocław University of Physical Education, Wrocław, Poland

Keywords: motion organ, isokinetic studies, densitometry, aging

Human aging is a complex process with its own specifics and dynamics. The decreased bone strength together with impaired physical efficiency followed by falls are the most important causes of osteoporotic fractures in the elderly population. The aims of the study were: the analysis of the aging process in the human active motion organ by isokinetic studies, description of the involution process in bones by densitometry and searching for the possible relations between them.
The study was carried out in 288 women divided into 4 age groups (40-49, 50-59, 60-69, 70-79 years). Isokinetic studies: the tests of spinal and knee extensors and flexors were carried out. The following angular velocities in concentric strength tests were assessed: for the spinal muscles: extension and flexion at angular velocities of 90º/s and 120º/s, and for the knee muscles: extension and flexion at angular velocities of 60º/s and 180º/s. Bone mineral density was measured in the proximal femur by DXA.
We observed the decline in the values of strength parameters studied (peak torque, total work, average power, maximal average peak torque) and the increase of the time to reach peak torque in particular groups of age reflect the worsening muscular work opportunities according to age. Moreover, numerous statistically significant correlations between strength-velocity parameters of spinal and knee muscles and densitometric results were shown. There were positive correlations between strength parameters and BMD, and negative ones between velocity parameters and BMD studied.
We documented the aging-related worsening of strength-velocity parameters of knee and spinal muscles in older women. Strength parameters decrease, and velocity ones increase with aging. The greater deterioration of the function was observed in flexors than in the extensors, especially in the knees. The parallel observation was gradual decrease in proximal femur BMD showing statistically significant correlations with strength-velocity parameters studied.




HYPODYNAMIA IN ADOLESCENCE AND OSTEOPOROSIS RISK

II Środkowo Europejski Kongres Osteoporozy i Osteoartrozy oraz XIV Zjazd Polskiego Towarzystwa Osteoartrologii i Polskiej Fundacji Osteoporozy, Kraków 11-13.10.2007
Streszczenia:
Ortopedia Traumatologia Rehabilitacja 2007, vol 9 (Suppl. 2), s1152.

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HYPODYNAMIA IN ADOLESCENCE AND OSTEOPOROSIS RISK

Popivanova C. V.

National Center of Public Health Protection, Ministry of Health, Sofia, Bulgaria

Active motion in childhood and adolescence is that very important factor for building up and maturing of the bone-skeletal system. With view to realization of the so called „strategic” (in childhood and adolescence) osteoporosis prevention, the study aimed to establish the level of physical activity in adolescents, hypodynamia signs and other unfavorable phenomena as risk factors for disturbed bone health. The studied group consisted of 773 adolescents, 14 – 18 years of age, from secondary schools. The study used anthropometric, questionnaire and psychological methods. A number of shortcomings are found in the system of physical exercises in the Bulgarian school. The students whose physical activities are restricted
to school sports lessons form a large group at risk with marked signs of hypodynamia (50.98%). The processes of growth, maturing and development of the bone and muscle system in this group are disturbed. The physical development and physical capacity are at a statistically significant lower level (p < 0.001), the age annual dynamics of anthropometric indicators is uneven, the peak growth of the bone skeleton is retarded with a year, the rate of kyphoses and kyphoskolioses is higher.
The immobilized students, as a result of hypodynamia, form an unfavorable psychosocial pattern – decreased „internal control” and „self-control” with resulting behavior risky for bone health – addiction to harmful habits and styles – tobacco smoking, drinking alcohol etc. The obtained results show that adolescent girls are at greater bone health risk than boys (p < 0.01). The fact that physical development indicators in all studied adolescents groups, with high or low physical activity extent, are significantly lower than those of their mates 15 years ago (Slanchev P. et al, 1992) is alarming and suggests retarded and weaker development of the bone-skeletal system. All adolescents in the conditions of polluted environment
with reduced oxygen content in resting conditions use maximally the capacity of their lungs (very large range of the anthropometric parameter – p < 0.001) which significantly restricts the functional capacity of the respiratory system to work adequately at intensive physical efforts necessary for stimulation and maintenance of osteogenesis processes. Hypodynamia together with accompanying negative disturbances in the period of growth, maturing and development of the bone-skeletal system create particularly unfavorable life „start” and potential risk for osteoporosis development.




P07 BONE MINERAL DENSITY ACCORDING TO ANSWER IOF’S ONE-MINUTE OSTEOPOROSIS RISK TEST

III Środkowo Europejski Kongres Osteoporozy i Osteoartrozy oraz XV Zjazd Polskiego Towarzystwa Osteoartrologii i Polskiej Fundacji Osteoporozy, Kraków 24-26.09.2009
Streszczenia:
Ortopedia Traumatologia Rehabilitacja 2009, vol 11 (Suppl. 2), s:120.
 
 
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BONE MINERAL DENSITY ACCORDING TO ANSWER IOF’S ONE-MINUTE OSTEOPOROSIS RISK TEST
 
Povoroznyuk V.V., Dzerovych N.I.
 
Institute of Gerontology AMS Ukraine,
Ukrainian Scientific-Medical Centre for the Problems of Osteoporosis, Kyiv, Ukraine
 
 
This research aimed at evaluating the bone mineral density according to answer IOF’s one-minute osteoporosis risk test.
Materials and methods. The study included two stages. Test was translated into Ukrainian. At the first stage, structural-functional state of bone was evaluated by means of an ultrasound bone densitometer (“Achilles+”). We’ve examined 147 postmenopausal women aged 50-69 years (mean age 59,8 ±0,7). The speed of sound (SOS, m/s), broadband ultrasound attenuation (BUA, dB/MHz) and “Stiffness” index (SI,%) were measured.
Results. Parameters of ultrasound densitometry at patients who have answered positively on ІІ (Have you broken a bone after a minor bump or fall), ІІІ (Have you ever taken corticosteroid tablets for more than 3 consecutive months) and ІV (Have you lost more than 3 cm in height) questions, were significantly less in comparison with the patients who have answered negatively. SI at patients with the positive answer to the on ІІ the question has made 74,0±1,7%, with negative – 81,2±1,3%, р = 0,002; on ІІІ – 67,1±3,9% and 79,9±1,1%, р = 0,0013; on ІV – 71,6±1,7% and 82±1,2%, р <0,00001. Rate of osteoporosis depending on the positive answer to the following questions has been made: to the on ІІ question – 46,67%, to the on ІІІ – 81,82 %, to the on ІV – 58,1 %. At the second stage of BMD, T and Z-score of the spine, femoral neck were determined by DXA using a densitometer Prodigy (GE Medical systems). We’ve examined 73 postmenopausal women aged 50-69 years (mean age 63,9±0,9). Significant correlation between the answer to the on ІІ a question and BMD spine (r =-0,29; p=0,012) and BMD femoral neck (r =-0,32; p=0,005); between the answer to the on ІV a question and BMD spine (r=0,29; p=0,047) was found.
Conclusion. Application of IOF’s one-minute osteoporosis risk test gives an opportunity to determine structural-functional changes of bone.