Insulin may affect breast cancer (BC) risk and prognosis. Exercise reduces insulin in obese BC survivors. We designed a randomised controlled trial to test the effect of an aerobic exercise intervention (AEI) on insulin parameters and body composition in non-obese BC women without insulin resistance. Thirty-eight BC women were randomised into an intervention group (IG = 18) or control group (CG = 20). IG participated in a structured AEI for 3 months, while CG received only the Word Cancer Research Fund/American Institute Cancer Research (WCRF/AICR) recommendation to be physically active. Fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR) index, metabolic parameters and body composition were collected at baseline and after the AEI. IG reduced insulin and HOMA-IR index by 15% and 14%, while CG increased these parameters (+12% and +16%). Insulin changed differently over time in the two randomised groups (pinteraction = .04). The between-group differences in the change of insulin (IG = -1.2 μU/ml versus CG = +0.8 μU/ml) and HOMA-IR index (IG = -0.26 versus CG = +0.25) were respectively significant (p = .04) and non-significant (p = .06). IG significantly improved lower limb muscle mass in comparison with CG (p = .03). A structured AEI may improve insulin, HOMA-IR index and body composition in non-obese BC survivors without insulin resistance.
Effect of aerobic exercise intervention on markers of insulin resistance in breast cancer women / E. Bruno, E. Roveda, J. Vitale, A. Montaruli, F. Berrino, A. Villarini, E. Venturelli, G. Gargano, L. Galasso, A. Caumo, F. Carandente, P. Pasanisi. - In: EUROPEAN JOURNAL OF CANCER CARE. - ISSN 0961-5423. - 27:2(2018 Mar), pp. e12617.1-e12617.9.
Effect of aerobic exercise intervention on markers of insulin resistance in breast cancer women
E. BrunoPrimo
;E. RovedaSecondo
;J. Vitale;A. Montaruli;L. Galasso;A. Caumo;F. CarandentePenultimo
;
2018
Abstract
Insulin may affect breast cancer (BC) risk and prognosis. Exercise reduces insulin in obese BC survivors. We designed a randomised controlled trial to test the effect of an aerobic exercise intervention (AEI) on insulin parameters and body composition in non-obese BC women without insulin resistance. Thirty-eight BC women were randomised into an intervention group (IG = 18) or control group (CG = 20). IG participated in a structured AEI for 3 months, while CG received only the Word Cancer Research Fund/American Institute Cancer Research (WCRF/AICR) recommendation to be physically active. Fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR) index, metabolic parameters and body composition were collected at baseline and after the AEI. IG reduced insulin and HOMA-IR index by 15% and 14%, while CG increased these parameters (+12% and +16%). Insulin changed differently over time in the two randomised groups (pinteraction = .04). The between-group differences in the change of insulin (IG = -1.2 μU/ml versus CG = +0.8 μU/ml) and HOMA-IR index (IG = -0.26 versus CG = +0.25) were respectively significant (p = .04) and non-significant (p = .06). IG significantly improved lower limb muscle mass in comparison with CG (p = .03). A structured AEI may improve insulin, HOMA-IR index and body composition in non-obese BC survivors without insulin resistance.File | Dimensione | Formato | |
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