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Nutrients 2018, 10(10), 1387; https://doi.org/10.3390/nu10101387

A Comparison of a Pulse-Based Diet and the Therapeutic Lifestyle Changes Diet in Combination with Exercise and Health Counselling on the Cardio-Metabolic Risk Profile in Women with Polycystic Ovary Syndrome: A Randomized Controlled Trial

1
Division of Nutrition and Dietetics, College of Pharmacy and Nutrition, 104 Clinic Place, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
2
Obstetrics and Gynecology, College of Medicine, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada
3
College of Kinesiology, Physical Activity Complex, University of Saskatchewan, 87 Campus Drive, Saskatoon, SK S7N 5B2, Canada
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work and should be regarded as equal first authors.
Received: 21 August 2018 / Revised: 21 September 2018 / Accepted: 27 September 2018 / Published: 30 September 2018
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Abstract

We compared the effects of a low-glycemic index pulse-based diet, containing lentils, beans, split peas, and chickpeas, to the Therapeutic Lifestyle Changes (TLC) diet on cardio-metabolic measures in women with polycystic ovary syndrome (PCOS). Ninety-five women (18–35 years) enrolled in a 16-week intervention; 30 women in the pulse-based and 31 in the TLC groups completed the study. Women participated in aerobic exercise training (minimum 5 days/week for 45 min/day) and were counselled (monthly) about PCOS and lifestyle modification. Women underwent longitudinal follow-up post-intervention. The pulse-based group had a greater reduction in total area under the curve for insulin response to a 75-g oral glucose tolerance test (mean change ± SD: −121.0 ± 229.9 vs. −27.4 ± 110.2 µIU/mL × min; p = 0.05); diastolic blood pressure (−3.6 ± 6.7 vs. −0.2 ± 6.7 mmHg, p = 0.05); triglyceride (−0.2 ± 0.6 vs. 0.0 ± 0.5 mmol/L, p = 0.04); low-density lipoprotein cholesterol (−0.2 ± 0.4 vs. −0.1 ± 0.4 mmol/L, p = 0.05); total cholesterol/high-density lipoprotein cholesterol (TC/HDL-C; −0.4 ± 0.4 vs. 0.1 ± 0.4, p < 0.001); and a greater increase in HDL-C (0.1 ± 0.2 vs. −0.1 ± 0.2 mmol/L, p < 0.01) than the TLC group. Decreased TC/HDL-C (p = 0.02) at six-month and increased HDL-C and decreased TC/HDL-C (p ≤ 0.02) at 12-month post-intervention were maintained in the pulse-based group. A pulse-based diet may be more effective than the TLC diet at improving cardio-metabolic disease risk factors in women with PCOS. Trial registration: CinicalTrials.gov identifier, NCT01288638. View Full-Text
Keywords: insulin; glucose; lifestyle; lipid; metabolic syndrome; physical activity; pulse foods; dietary intake insulin; glucose; lifestyle; lipid; metabolic syndrome; physical activity; pulse foods; dietary intake
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Kazemi, M.; McBreairty, L.E.; Chizen, D.R.; Pierson, R.A.; Chilibeck, P.D.; Zello, G.A. A Comparison of a Pulse-Based Diet and the Therapeutic Lifestyle Changes Diet in Combination with Exercise and Health Counselling on the Cardio-Metabolic Risk Profile in Women with Polycystic Ovary Syndrome: A Randomized Controlled Trial. Nutrients 2018, 10, 1387.

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