التفاصيل البيبلوغرافية
| العنوان: |
Reliability and day-to-day variability of peak fat oxidation during treadmill ergometry |
| المؤلفون: |
De Souza Silveira, Raul, Carlsohn, Anja, Langen, Georg, Mayer, Frank, Scharhag-Rosenberger, Friederike |
| بيانات النشر: |
BioMed Central Ltd. |
| سنة النشر: |
2016 |
| المجموعة: |
BioMed Central |
| مصطلحات موضوعية: |
Peak fat oxidation, Reliability, Variability, Running, Treadmill ergometry |
| الوصف: |
Background Exercising at intensities where fat oxidation rates are high has been shown to induce metabolic benefits in recreational and health-oriented sportsmen. The exercise intensity (Fat peak ) eliciting peak fat oxidation rates is therefore of particular interest when aiming to prescribe exercise for the purpose of fat oxidation and related metabolic effects. Although running and walking are feasible and popular among the target population, no reliable protocols are available to assess Fat peak as well as its actual velocity (V PFO ) during treadmill ergometry. Our purpose was therefore, to assess the reliability and day-to-day variability of V PFO and Fat peak during treadmill ergometry running. Methods Sixteen recreational athletes (f = 7, m = 9; 25 ± 3 y; 1.76 ± 0.09 m; 68.3 ± 13.7 kg; 23.1 ± 2.9 kg/m 2 ) performed 2 different running protocols on 3 different days with standardized nutrition the day before testing. At day 1, peak oxygen uptake (VO 2peak ) and the velocities at the aerobic threshold (V LT ) and respiratory exchange ratio (RER) of 1.00 (V RER ) were assessed. At days 2 and 3, subjects ran an identical submaximal incremental test (Fat-peak test) composed of a 10 min warm-up (70 % V LT ) followed by 5 stages of 6 min with equal increments (stage 1 = V LT , stage 5 = V RER ). Breath-by-breath gas exchange data was measured continuously and used to determine fat oxidation rates. A third order polynomial function was used to identify V PFO and subsequently Fat peak . The reproducibility and variability of variables was verified with an intraclass correlation coefficient (ICC), Pearson’s correlation coefficient, coefficient of variation (CV) and the mean differences (bias) ± 95 % limits of agreement (LoA). Results ICC, Pearson’s correlation and CV for V PFO and Fat peak were 0.98, . |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| العلاقة: |
http://www.jissn.com/content/13/1/4Test |
| الإتاحة: |
http://www.jissn.com/content/13/1/4Test |
| حقوق: |
Copyright 2016 De Souza Silveira et al. |
| رقم الانضمام: |
edsbas.DCF53354 |
| قاعدة البيانات: |
BASE |
