D and PA+D  interventions had larger effects on glucose reduction  than PA alone .
Lifestyle  interventions significantly improved FPG , HbA1c , FI , HOMA-IR , and bodyweight among adults without IGT or diabetes , and might reduce progression of hyperglycemia to type 2 diabetes mellitus
This study systematic ally assessed the effectiveness of lifestyle interventions on glycemic indicators among adults ( ⩾18years ) without IGT or diabetes .
Effects of body composition and exercise capacity on glucose tolerance, insulin, and lipoprotein lipids in healthy older men: a cross-sectional and longitudinal intervention study.
The relationships of age , body composition , and physical conditioning status to glucose tolerance , insulin , and lipoprotein levels were examined in 77 healthy , nonsmoking white male volunteers , aged 46 to 73 years with no evidence of coronary artery or endocrine-metabolic disease . The men had a wide range of body fat ( 13 % to 39 % ) , indexed as waist-to-hip ratio ( WHR , 0.84 to 1.08 ) , and maximal aerobic capacity ( VO2max , 17 to 48 mL/kg.min ) . Multiple regression analysis with age , VO2max , WHR , and percent body fat as independent variables demonstrated that fasting plasma insulin , triglyceride ( TG ) , and high density lipoprotein cholesterol ( HDL-C ) levels were independently related to both percent body fat and WHR . In contrast , fasting plasma glucose levels and insulin responses during oral glucose tolerance tests ( OGTT ) correlated independently with percent body fat , and glucose responses to OGTT correlated only with WHR . Although fasting plasma TG and HDL-C correlated with glucose and insulin levels , in multiple regression analyses only percent body fat and WHR were the significant independent variables . Fasting total and low density lipoprotein cholesterol values were not related to these variables . To test the effects of weight loss and exercise training on these relationships , 20 obese men of comparable age , percent body fat , WHR , and  VO2max were r and omly assigned to weight loss or aerobic exercise training programs . A 12 % + /- 3 % loss in body weight ( P less than .01 , mean + /- SD ) result ed in a 19 % + /- 9 % decline in body fat ( P less than .01 ) with no change in fat free mass , WHR , or VO2max . ( ABSTRACT TRUNCATED AT 250 WORDS
D and PA+D  interventions had larger effects on glucose reduction  than PA alone .
Lifestyle  interventions significantly improved FPG , HbA1c , FI , HOMA-IR , and bodyweight among adults without IGT or diabetes , and might reduce progression of hyperglycemia to type 2 diabetes mellitus
This study systematic ally assessed the effectiveness of lifestyle interventions on glycemic indicators among adults ( ⩾18years ) without IGT or diabetes .