همگرایی معادلات پیشگو در برآورد هزینه انرژی مصرفی با مدل مبنا در آزمون های درمانده ساز نوارگردان

نوع مقاله : علمی - پژوهشی

نویسندگان

دانشگاه محقق اردبیلی

چکیده

هدف از اجرای پژوهش حاضر، بررسی و مقایسه همگرایی معادلات پیشگو در برآورد هزینه انرژی مصرفی با مدل مبنا در آزمون­ درمانده­ساز نوارگردان بود. روش تحقیق: تعداد 50 نفر از مردان جوان فعال(با میانگین ± انحراف معیار سنی 069/2 ± 04/21 سال، قد 48/4 ± 78/176 سانتی­متر، وزن 825/5 ± 11/70 کیلوگرم) به عنوان نمونه انتخاب و آزمون­­های بیشینه درمانده­ساز نوارگردان را اجرا کردند. تجزیه و تحلیل متغیرهای بیوانرژتیک در طول اجرای پروتکل­های درمانده­ساز با استفاده از دستگاه تجزیه و تحلیل گازهای تنفسی به فاصله زمانی ده ثانیه جمع آوری شد. برای سنجش همگرایی، مقادیر اکسیژن مصرفی برآورد شده با استفاده مدل مبنا (روش تجزیه و تحلیل گازهای تنفسی) و معادلات پیشگوی ACSM، واندروالت، پاندولف، لیگر و اپستین مورد مقایسه قرارگرفتند. برای ارزیابی همگرایی از مدل گرافیکی بلاند – آلتمن و روش همگرایی همبستگی درونی (ICC) استفاده شد. نتایج: حاکی از آن بود که معادله­ی دویدن لیگر همگرایی بالایی با روش مبنا دارد(لیگر:96/1± ،95% =CI ، 2/21- تا 4/ میلی لیتر/ کیلوگرم/ دقیقه 2، 89/0=ICC) و معادلات راه رفتن و دویدن ACSM همگرایی متوسطی با روش مبنا دارند(راه رفتن: 96/1± ،95% =CI ، 1/8- تا 7/4 میلی لیتر/ کیلوگرم/ دقیقه،  4837/0=ICC ؛ دویدن: 96/1± ،95% =CI ،  6/27- تا 3/3- میلی لیتر/ کیلوگرم/ دقیقه، 4535/0=ICC). نتیجه­ گیری: براساس نتایج می­توان گفت که معادله­ی دویدن لیگر در بین معالادت ارائه شده در برآورد حجم اکسیژن مصرفی و به طور نسبی معادلات راه رفتن و دویدن ACSM در مردان جوان ایرانی می­تواند به جای روش مبنا مورد استفاده قرار گیرد.

عنوان مقاله [English]

Agreement among the energy expenditure prediction equations with the criterion model in the exhaustive treadmill test protocols

چکیده [English]

Purpose: The aim of this study was to survey the agreements between the energy expenditure prediction equations with the criterion model in the exhaustive treadmill test protocols in active young men. Methods: Fifty active young men were selected as subjects (Mean ± SD Age 21.04 ± 2.069 yrs., Height 176.78 ± 4.484 cm, Weight 70.11 ± 5.825 kg) and completed exhaustive treadmill test protocols. Bioenergetical variables during exhaustive protocols using respiratory gas analysis were collected at an interval of ten seconds. To estimate the energy cost and bioenergetical variables, ACSMv, Vander Walt, Pandolf, Léger and Epstein predictive equations for walking and running were considered. Bland-Altman graphical model and Interclass Correlation Coefficient (ICC) statistical tests were used to evaluate the absolute agreement of the methods. Results: The results suggest that the Leger equation for running have high agreement with the criterion model (±1.96; CI = 95% -21.2 to 2.4 ml/kg/min; ICC= 0.89) And ACSM walking and running equations have middle agreement with the criterion model(Walking: ±1.96 ; 95% CI = -8.1 to +4.7 ml/kg/min , ICC= 0.4837 ; Running: ±1.96 ; 95% CI = -27.6 to -3.3 ml/kg/min, ICC: 0.4535). Conclusion: According to study results it could be concluded that the Leger equations for running and relatively ACSM walking and running equations estimating of VO2 among Iranian active young men can be used as an accurate alternative for the criterion method.

کلیدواژه‌ها [English]

  • Maximum exhaustive test- Bioenergetical variables-Prediction equations- Energy expenditure
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