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Abstract

Background: patients with type 2 diabetes (T2DM) are subjected to reduction in the quality and oxidative capacity of muscles. The effect of duration of diabetes on the muscle endurance response is not clear and strength as well .The aim of this study was the assessment of strength and endurance of knee extensor and flexor in the patients with T2DM<10 and T2DM>10 years in comparison with age, sex, BMI, ABI and PAI-matched health control subjects. Methods: isometric maximal peak torque (MPT) of knee extensor and flexor before and after 40 isokinetic repetitions with velocity of 150 degree/s were recorded in 18 patients with T2DM<10 Y , 12 patients with T2DM>10 Y and 20 matched health control (HC) groups. Results: both diabetic patient groups had significant lower isometric and isotonic knee extensor and flexor strength than HC (Table 1). The endurance indices indicated that whereas the isometric MPT of flexor movement was reduced after isokinetic protocol in the both patient groups in comparison with HC, the less decline was seen in the isotonic torque and work during isokinetic protocol in the T2DM>10 Y group in comparison with two other groups (figure 1). The HbA1c and FBS were significantly correlated with strength not with endurance indices. Conclusions: it seems the progression of diabetes accompanied with vascular, neural and muscular deficits activate, some adaptive and compensatory processes which can maintain muscle performance.

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/content/papers/10.5339/qfarf.2013.BIOSP-03
2013-11-20
2019-12-15
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