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Small-sided games training reduces CRP, IL-6 and leptin in sedentary, middle-aged men.
MedLine Citation:
PMID:  25048075     Owner:  NLM     Status:  Publisher    
PURPOSE: Long-term physical activity is reported to improve chronic systemic inflammation, which provides protection against the ensuing development of chronic disease. Accordingly, the present study assessed changes in pro- and anti-inflammatory cytokines, aerobic capacity and body composition following 8 weeks of either small-sided games (SSG) or cycling (CYC) training compared to a sedentary control (CON) condition.
METHODS: Thirty-three middle-aged, sedentary men were randomized into CYC (n = 11), SSG (n = 11), or CON (n = 11) conditions. The CYC and SSG conditions trained 3 days/week for 8 weeks, whilst CON maintained habitual activity and dietary patterns. Pre- and post-intervention testing included a dual-energy X-ray absorptiometry scan, sub-maximal (80 % maximal heart rate) aerobic capacity (VO2) and fasting venous blood. Venous blood measures for pro-inflammatory markers included C-reactive protein (CRP), interleukin (IL)-6, IL-1β, tumor necrosis factor-α, and leptin; anti-inflammatory markers included IL-10, IL-1 receptor agonist, and adiponectin.
RESULTS: Both CYC and SSG increased submaximal power output and VO2 (P < 0.05), decreased total body fat-mass (TB-FM; P < 0.05), and CRP (SSG, -0.45 ± 0.42 mg L(-1); P = 0.008; CYC, -0.44 ± 0.59 mg L(-1); P = 0.02). Only SSG increased total body fat-free mass (TB-FFM; +1.1 ± 1.2 kg; P = 0.001) and decreased concentration of plasma IL-6 (-0.69 ± 0.62 pg mL(-1); P = 0.002) and leptin (-2,212 ± 2,531 ng mL(-1); P = 0.014).
CONCLUSION: Cycling and SSG training were both effective at improving CRP, VO2 and TB-FM. Furthermore, SSG training has also shown to be an effective training approach in reducing IL-6 and leptin and increasing muscle mass within sedentary, middle-aged men.
Amy E Mendham; Rob Duffield; Frank Marino; Aaron J Coutts
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-22
Journal Detail:
Title:  European journal of applied physiology     Volume:  -     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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