Response and adaptation to exercises
hamed rashidi; Najmeh Rezaeian
Abstract
Aim: Steroid Receptor RNA Activator (SRA) is one of long non-coding RNA (LncRNA) playing a dual role glucose homeostasis and insulin resistance. Purpose of this study was to investigate the effect of eight weeks of combined aerobic and resistance training (ART) on adipose tissue levels of SRA and insulin ...
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Aim: Steroid Receptor RNA Activator (SRA) is one of long non-coding RNA (LncRNA) playing a dual role glucose homeostasis and insulin resistance. Purpose of this study was to investigate the effect of eight weeks of combined aerobic and resistance training (ART) on adipose tissue levels of SRA and insulin resistance index (HOMA-IR) in old rats. Twenty old female rat (24-28 weeks old, 379/20±13/30 gr) selected and were randomly divided into experimental and control groups (10 ones in each). The rats in the experimental group participated in eight weeks of ART, six days a week. Aerobic training consisted of running on a treadmill at low to moderate intensity (40-60% of the maximum speed obtained in the maximum running test), 60 minutes per session. Resistance training compromised climbing a ladder at an intensity equal to 40-60% of the force obtained in the maximum load test, 15 repetitions with a one-minute rest interval, and 45 minutes per session. Eight weeks of ART resulted in significant increases in adipose tissue levels of SRA in addition to significant decreases in levels of insulin and fasting blood glucose , HOMA-IR and body weight in the experimental group compared to the control group. Furthermore, eight weeks of ART caused in significant decreases in body weight in post-test compared to pre-test. it seems that eight weeks of combined aerobic and resistance training plays a role in improving insulin resistance and body composition despite of increasing SRA levels.
Bahman Mirzaei; Farhad Rahmani nia; Amir Rashidlami; Mehdi Ghahremani Moghaddam
Volume 3, Issue 2 , July 2014, , Pages 129-139
Abstract
Abstract
Aim: Aging in human is associated with a loss in neuromuscular function and performance. This is related, in part, to increased oxidative stress and decreased antioxidants status. Uric acid and bilirubin considered as two main antioxidant in blood and have a significant relationship with Total ...
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Abstract
Aim: Aging in human is associated with a loss in neuromuscular function and performance. This is related, in part, to increased oxidative stress and decreased antioxidants status. Uric acid and bilirubin considered as two main antioxidant in blood and have a significant relationship with Total Anti Oxiidait Capaciy. The aim of present study was to examin the effects of resistance exercise on total antioxidant capacity, bilirubin and uric acid in non-athlete and elderly wrestlers.
Method: 8 elderly wrestlers (age 59.75 ± 1.98, Height 172.25 ± 7.08 cm, Weight 76 ± 14.6 kg) and 7 untrained (age 61.42 ± 1.9, Height 173.14 ± 4.09 cm, Weight 79.71 ± 8.15 kg) elderly people volunteered as subject for the study. Subjects completed resistance exercise protocol including: bench press, leg extension, lat-machine pull down, leg curl, cable triceps curl and cable biceps curl with 60-70% of 1RM and with 8-12 repetitions. Blood samples were colected at pre, post and 24 hours after resistance exercise.
Results: Resistance exercise did not caused any significancant differences in indices but the baseline amount of total bilirubin and TAC was higher in athlete group, but not significantly.
Conclusion: The results of this study showed a single bout of resistance exercise had not significant effect on antioxidant status in athlete and non-athlete elderly men.
Key words: Antioxidant, Aging, Uric acid, Bilirubin, Wrestling.
