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Comparison of thoracic kyphosis and postural stiffness in younger and older women*1

Background contextAn increase in thoracic kyphosis and postural stiffness is commonly associated with aging and many pathological conditions. Simple clinical measurements are needed to estimate the relative degree of postural stiffness to determine whether clinical interventions, such as exercise, are beneficial.PurposeTo compare the amount of kyphosis and postural stiffness in the thoracic spine of younger and older women.Study design/settingExperimental design conducted at a large health science center in southeastern Texas.Patient sampleFifty-one healthy adult women, 25 between the ages of 21 and 51 years and 26 aged 66 to 88 years.Outcome measuresIndex of kyphosis (IK) measured with a surveyor's flexicurve. Differences, percent change and ratios between IK measures taken in the relaxed and maximally erect positions were used to estimate postural stiffness.MethodsSubjects were measured while standing in their usual relaxed posture and again in their maximally erect posture by three different raters. IK measures were calculated by each rater and averaged for further data analysis. Independent t tests were used to compare the two age groups at the .05 alpha level.ResultsSignificant differences were found in both the relaxed (p = .018) and erect (p<.001) IK measures of younger and older women. The differences, percent change and ratio between the two IK measures were also significantly different in that the younger women demonstrated a greater degree of active reduction of their kyphosis (in the erect posture) than older women.ConclusionsAge-related differences in thoracic kyphosis and postural stiffness were documented between younger and older women by means of repeated flexicurve measurements performed in both a relaxed and a maximally erect position.

مقایسه کیفوز پشتی و سختی وضعیتی در زنان جوان و مسن

زمینه و هدف: افزایش کیفوز پشتی و سختی وضعیتی معمولا با افزایش سن و بسیاری از شرایط پاتولوژیک همراه است. برای تعیین اینکه آیا مداخلات بالینی مانند تمرین، at are oseTo compare the postural in thoracic large of younger ent health science science center conducted / /، science and and measuresIndex and and aged aged kyphosis)with with and and and with with with of of of of of of of of of of a a a a a a a a a a a a a a a a a a a a a a of of of of of of of of of of of of of of of of ۵۱ ۵۱ of of of of of of of of of of of of of of of of of of ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ ۸۸ surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's surveyor's flexicurve flexicurve flexicurve flexicurve flexicurve IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK IK measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured measured to to to تفاوت‌ها، درصد تغییر و نسبت‌های بین معیارهای IK گرفته‌شده در موقعیت‌های آرام و حداکثری برای تخمین odsSubjects postural postural در حالی که در حالت استراحت معمولی خود و دوباره در حالت maximally حداکثر خود توسط سه ارزیاب مختلف اندازه‌گیری شدند، مورد استفاده قرار گرفت. برای تجزیه و تحلیل داده‌ها از روش‌های آمار توصیفی و استنباطی استفاده شد. از آزمون‌های independent t برای مقایسه دو گروه سنی در the استفاده شد. ۰۵ تجزیه و تحلیل شدند. ۰۰۱)و افراشته (p < ۰.۰۱). ۰۰۱). تفاوت، درصد تغییر و نسبت بین دو معیار IK نیز به طور قابل‌توجهی متفاوت بود، در حالی که تفاوت مشاهده‌شده در کیفوز پشتی و سختی وضعیتی بین زنان جوان‌تر و مسن‌تر نشان داده شد.
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