scholarly journals The effect of eight weeks of resistance training on adropin plasma level and insulin resistance index in overweight men

2021 ◽  
Vol 14 (1) ◽  
pp. 31-37
Author(s):  
Sajad Kermani ◽  
Rostam Alizadeh ◽  
Lida Moradi
Keyword(s):  
Insulin Resistance ◽  
Resistance Training ◽  
Plasma Level ◽  
Resistance Index ◽  
Insulin Resistance Index

scholarly journals Effects of resistance versus endurance training on serum adiponectin and insulin resistance index

2007 ◽  
Vol 157 (5) ◽  
pp. 625-631 ◽  
Author(s):  
Sajad Ahmadizad ◽  
Amir Hossein Haghighi ◽  
Mohammad Reza Hamedinia
Keyword(s):  
Insulin Resistance ◽  
Resistance Training ◽  
Endurance Training ◽  
Resistance Index ◽  
Training Group ◽  
Serum Adiponectin ◽  
Control Group ◽  
Maximal Heart Rate ◽  
Healthy Men ◽  
Insulin Resistance Index

AbstractPurposeThe purpose of the present study was to investigate the effects of resistance and endurance training on serum adiponectin and insulin resistance index (SI) in healthy men.MethodsTwenty-four healthy males (age, 35–48 years) participated in the study. The subjects were randomly assigned to one of three groups: endurance training group (n=8), resistance training group (n=8) and control group (n=8). Blood samples were taken in fasting state from all subjects. The experimental groups performed either endurance or resistance training 3 days a week for 12 weeks. The endurance training programme included continuous running at an intensity corresponding to 75–85% of maximal heart rate, while resistance training consisted of four sets of circuit weight training for 11 stations and at an intensity corresponding to 50–60% of one-repetition maximum. The maximum numbers of repetitions in each station was 12.ResultsThere were significant negative correlations between serum adiponectin and body fat percentage, waist-to-hip ratio, body mass index and the insulin resistance index at baseline, whereas changes in response to training were not significantly correlated. Both endurance and resistance training resulted in a significant decrease in the SI in comparison with the control group. However, serum adiponectin did not change significantly in response to resistance and endurance training.ConclusionEndurance and resistance training caused an improvement in insulin resistance in healthy men, but this improvement was not accompanied by increased adiponectin levels.

scholarly journals Relationship between insulin sensitivity and menstrual cycle is modified by BMI, fitness and physical activity in NHANES

2021 ◽  
Author(s):  
Kirstin A MacGregor ◽  
Iain J Gallagher ◽  
Colin N Moran
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
Insulin Sensitivity ◽  
Menstrual Cycle ◽  
Cardiorespiratory Fitness ◽  
Resistance Index ◽  
Premenopausal Women ◽  
Category Membership ◽  
Insulin Resistance Index ◽  
Homeostatic Model

Abstract Context There is evidence demonstrating variation in insulin sensitivity across the menstrual cycle. However, to date, research has yielded inconsistent results. Objective This study investigated variation in insulin sensitivity across the menstrual cycle and associations with BMI, physical activity and cardiorespiratory fitness. Design Data from 1906 premenopausal women in NHANES cycles 1999-2006 were analysed. Main outcome measures Menstrual cycle day was assessed using questionnaire responses recording days since last period. Rhythmic variation of plasma glucose, triglyceride and insulin, homeostatic model of insulin resistance (HOMA-IR) and adipose tissue insulin resistance index (ADIPO-IR) across the menstrual cycle were analysed using cosinor rhythmometry. Participants were assigned low or high categories of BMI, physical activity and cardiorespiratory fitness and category membership included in cosinor models as covariates. Results Rhythmicity was demonstrated by a significant cosine fit for glucose (p= 0.014) but not triglyceride (p= 0.369), insulin (p= 0.470), HOMA-IR (p=0.461) and ADIPO-IR (p= 0.335). When covariates were included, rhythmicity was observed when adjusting for: 1. BMI: glucose (p< 0.001), triglyceride (p< 0.001), insulin (p< 0.001), HOMA-IR (p< 0.001) and ADIPO-IR (p< 0.001); 2. Physical activity: glucose (p< 0.001), triglyceride (p= 0.006) and ADIPO-IR (p= 0.038); 3. Cardiorespiratory fitness: triglyceride (p= 0.041), insulin (p= 0.002), HOMA-IR (p= 0.004) and ADIPO-IR (p= 0.004). Triglyceride amplitude, but not acrophase, was greater in the high physical activity category compared to low (p=0.018). Conclusions Rhythmicity in insulin sensitivity and associated metabolites across the menstrual cycle are modified by BMI, physical activity and cardiorespiratory fitness.

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