Resistance Exercise in Already-active Type 1 Diabetic Individuals: The READI Trial

Abstract

s / Can J Diabetes 36 (2012) S2eS22 S15 7.1 1.1%, aged 31.8 15.8 years) either rested for 45 minutes, ran on a treadmill for 45 minutes (60% VO2peak), or performed 45 minutes of weight lifting (3 sets of 8 repetitions of seven different exercises at the participants’ 8-repetition maximum) while wearing a Medtronic CGM System Gold monitor. Blood samples were collected at regular intervals for determination of plasma glucose. Data are presented as mean SD. Sensor values generally underestimated plasma glucose both during both exercise modalities and at rest. Mean underestimation was greatest during the CON trial with -14.1 13.2% difference from plasma values (p<0.001). A mean difference of -8.6 17.1% was calculated for RES (p<0.001). No differences were found between the sensor and the plasma glucose levels during AER (mean difference -1.91 30.6%, p1⁄40.445). These data indicate that sensor accuracy is not impaired during either type of exercise. Improved blood flow-mediated equilibration between plasma and interstitial fluid may partially explain improved sensor accuracy during exercise, especially during aerobic exercise.