عنوان مقاله [English]
The purpose of this study was to determine effect the period of decrease 70 percent in training volume on strength, power, anabolic and catabolic status of runners. Fourteen man runners with average age 23/50± 4/06 years, high 178/21± 5/95, fat percent 9/93 ± 3/16 voluntarily participated. After taken the first test 8 week progressive training was started. Second test was taken after eight weeks. Follow that decrease training volume phase began. Taper group past 14 days decrease 70 percent training volume, control group followed training with previous same loading. After 14 days the third test was taken in same circumstances to previous tests. For data analyze analysis of variance (ANOVA) with repeated measures and Bonfronie post hoc tests were taken (P<0/05). Results showed in taper group, strength and power during taper phase improved significantly (P<0/05). But in control this variation wasn’t significant (P>0/05).During taper phase the plasma levels of testosterone, cortisol and testosterone to cortisol ratio was not significantly change (P>0/05). Period of decreased 70 percent training volume in runner during 14 days before main contest could in addition to decrease fatigue accumulation, improve strength and power. that is independent of variation in catabolic and anabolic indices.
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