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Medicina dello Sport 2017 June;70(2):176-85

DOI: 10.23736/S0025-7826.16.02871-4

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English, Italian

Acute effects of submaximal cycling activity with blood flow restriction on superoxide dismutase and plasma glutathione peroxidase enzymes in healthy men: a pilot study

Keyvan KHORAMIPOUR 1, Pooneh DEHGHAN 2 , Mostafa SABOORY 1, Atabak SHAHED 1, Aref BASEREH 3

1 Department of Sports Physiology, Tehran University, Tehran, Iran; 2 Taleghani Hospital Research Development Unit, Shahid Beheshti University of Medical Sciences, Tehran, Iran; 3 Department of Sports Physiology, Shahid Beheshti University, Tehran, Iran


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BACKGROUND: This pilot study aimed to determine the acute effect of submaximal cycling with restriction of blood flow on plasma superoxide dismutase and glutathione peroxidase enzymes in healthy men.
METHODS: Twenty-four healthy young volunteers were divided according to maximum power into two groups: cycling with vascular occlusion of the foot (N.=12, age: 23.87±2.94 years, height: 174.81±5.91 cm, weight: 71.68±7.19 kg), and cycling without occlusion (N.=12, age: 23.5±2.32 years, height: 175.06±4.9 cm, weight: 68±7.19 kg). The activity protocol included three phases of 3 minutes of pedaling with 50% of maximum watts (Wmax) with 30-45 seconds of rest between phases and 180-200 mmHg pressure on the thigh.
RESULTS: One session of submaximal cycling significantly increased superoxide dismutase (P<0.001) and glutathione peroxidase (P<0.001) activity in the occlusion group, but not in the group without occlusion.
CONCLUSIONS: We conclude that occlusion might stimulate the body’s antioxidant system during submaximal exercise.


KEY WORDS: Antioxidants - Superoxide dismutase - Glutathione peroxidase

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