Genç Sporcularda Diurnal Değişkenliğin Yüksek Şiddetli Egzersiz Sonrası Toparlanmaya Etkisi

Bu çalışmanın amacı, genç sporcularda yüksek şiddetli yüklenme ve sonrasındaki toparlanma yanıtlarındadiurnal değişkenlik etkisinin incelenmesidir. Araştırmaya en az 2 yıl antrenman geçmişi olan 27erkek sporcu katılmıştır. Sporcuların anaerobik performansları her bir test ayrı bir günde olmak üzeregünün beş farklı zaman diliminde (08:00-09:00;10:00-11:00;12:00-13:00;15:00-16:00;17:00-18:00) WingateAnaerobik Güç Testi (WAnT) ile değerlendirilmiştir. Aynı zamanda, dinlenik, WAnT sırasında ve sonrasındakitoparlanmanın 21 dakikası boyunca olmak üzere kalp atım hızı (KAH), oksijen tüketimi (VO2),vücut sıcaklığı ve ortalama kan basıncı yanıtları belirlenmiştir. Tekrarlı ölçümlerde tek yönlü varyansanalizi sonucunda, WAnT’de kaydedilen KAH ve vücut sıcaklığı yanıtlarının akşamüstü saatlerine göresabah saatlerinde anlamlı ölçüde daha düşük gerçekleştiği belirlenmiştir (p0.05). Ancak bunlara ilişkin ortalama değerlerdikkate alındığında, kaydedilen anaerobik performans düzeyi, dinlenik ve toparlanmaya ilişkin KAH,VO2 ve vücut sıcaklığı yanıtlarının akşamüstü saatlere göre sabah saatlerinde daha düşük değerlere sahipolduğu gözlenmiştir. Bununla birlikte KAH toparlanma oranı da akşamüstü saatlere göre sabah saatlerindedaha fazladır. Sonuç olarak, yüksek şiddetli egzersiz performansı akşamüstü daha yüksek olma eğilimigösterirken, toparlanma yanıtları sabah saatlerinde daha fazla olma eğilimindedir.

The Effect of Diurnal Variation on Young Athletes Recovering from High-Intensity Exercises

This study examines the effect of diurnal variation on the recovery of young athletes following high-intensity exercise. Twenty-seven male athletes with at least 2 years of training experience participated in this study. Anaerobic performance was assessed at five different times of day (08:00 -09:00;10:00-11:00;12:00-13:00;15:00-16:00;17:00-18:00) using the Wingate Test (WAnT) with each test performed on a different day. The heart rate (HR), oxygen consumption (VO2), body temperatures and mean arterial blood pressure values were also recorded while at rest, during WAnT and during the 21- minutes of recovery period. Repeated ANOVA test results showed the HR and body temperature responses to WAnT were significantly lower in the morning than in the early-evening (p0.05). However, when mean values were considered, anaerobic performance, the resting and recovery values of HR, VO2 and body temperature were slightly lower in the morning than in the early evening. Moreover, the recovery rates of HR were slightly higher in the morning. In conclusion, it was shown that high-intensity exercise performance tended to be higher in the early evening hours, but that the rate of recovery from high-intensity exercise tended to be higher in the morning hours.

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