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Rahmati-Ahmadabad S, Azarbayjani M, Nasehi M. The Effects of High-Intensity Interval Training with Supplementation of Flaxseed Oil on BDNF mRNA Expression and Pain Feeling in Male Rats. Ann. Appl. Sport Sci. 2017; 5 (4)
1- PhD Department of Exercise Physiology, Faculty of Sport Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
2- PhD Department of Exercise Physiology, Faculty of Sport Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran ,
3- PhD Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
Abstract:   (1300 Views)
Background. It seems that based on the independent effects of physical activity and flax oil on pain, it is possible the interactions of these two effects reduces or mitigate the impact of pain or strengthen it.
Objectives. This study investigates the effect of high-intensity interval training and flaxseed oil supplementation on hippocampal BDNF expression and pain feeling in male rats.
Methods. Twenty adult Wistar rats were randomly divided into four groups (five in each group) including control-saline (CS), training-saline (TS), control-flaxseed oil (CO), and training-flaxseed oil (TO). The training groups were given high-intensity interval training (10 weeks, five sessions in week) on a rodent treadmill at 90–95% of VO2 max and supplement groups also received flaxseed oil (10 mg/kg per cage). Pain threshold was assessed by the hot plate test at a temperature of 55 ± 0.5 °C five days after the last session training. Then rats were sacrificed, their hippocamp tissue frizzed, and sent to laboratory to determine the BDNF gene expression.
Results. The result showed that training significantly induced higher plasma BDNF concentration (p<0.001) and lower pain threshold (p<0.02). Training-flaxseed oil combination group induced significant increase in BDNF expression (p<0.04). There were no significant differences between the other groups.
Conclusion. The present study showed the useful role of flaxseed oil supplement and high-intensity interval training in increasing an important factor for Alzheimer's disease. It also showed that, although intensive exercise may be accompanied with reduced pain threshold and increased pain feeling, it has palpable beneficial effects on memory enhancement.
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• High intensity interval training (HIIT) increases hippocampal BDNF gene expression that is benefit for trained subjects.
• It is recommended that trained subjects consume the flaxseed oil supplement with HIIT; because this combination compared with HIIT alone, has more effect on hippocampal BDNF gene expression that trained subjects derive a benefit from this over-expression.

Type of Study: Original Article | Subject: Sport Physiology and its related branches
Received: 2016/05/22 | Accepted: 2017/07/1 | Published: 2017/08/18

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