Egzersiz yapan yetişkinlerde 1 saatlik koşu sonrasında KHD'deki 48 saatlik değişimin incelenmesi

Bu araştırmanın amacı; egzersiz yapan kişilerin KHD’sini 1 saatlik koşu sonrasındaki 48 saat boyunca incelemektir. Araştırmaya 8 sağlıklı erkek gönüllü olarak katılmıştır. Her katılımcı, VO2maks’ının % 70’ine denk gelen KAH’da 1 saat boyunca koşmuştur. KHD ölçümleri koşu öncesinde, tamamlandıktan 30 dk sonrasında, 24 saat sonrasında ve 48 saat sonrasında tekrar edilmiştir. Test sonuçlarına göre; KAH değerinin koşudan 30 dk sonraki alımda diğer ölçümlerden anlamlı olarak yüksek çıktığı görülmüştür. SDNN, TP ve HF için; aktiviteden 30 dk sonraki alımın diğer ölçümlere göre anlamlı olarak düşük çıktığı görülmüştür. SDSD, RMSSD değerlerinde; koşudan 30 dk sonraki ölçümün 24 ve 48 saat sonraki ölçümlerden anlamlı olarak düşük çıktığı anlaşılmıştır. HFnu için; koşudan 30 dk sonraki alımın egzersiz öncesine göre anlamlı olarak düşük çıktığı görülmüştür. LF, yüklenmeden 30 dk sonraki alımda, 24 saat sonraki ölçüme göre anlamlı olarak düşük çıkmıştır. LFnu ise koşudan 30 dk sonraki ölçümde, dinlenik zamana göre anlamlı olarak yüksek kaydedilmiştir. LF/HF’de koşudan 30 dk sonra, öncesi ve 24 saat sonrasına göre artış görülmüştür. Sonuç olarak KAH’da ve KHD parametrelerinde koşudan 30 dk sonra görülen anlamlı değişikliklerden KAH ve LF/HF’deki artış, SDNN, SDSD ve RMSSD’deki azalma, sempatik aktivitedeki artışın koşudan 30 dk sonra da devam ettiğinin göstergesidir. TP, HF, Hfnu ve LF’deki azalma da sempatik aktivitenin baskınlığını gösteren diğer sonuçlardır. Bu araştırmadan çıkarılabilecek başka bir sonuç ise; yoğun fiziksel aktivitenin kalp üzerindeki etkilerinin 24 saat içerisinde normale döndüğü, kalbin bu süre içerisinde toparlandığıdır

Anahtar Kelimeler:

Kalp hızı değişkenliği, Sempatik etki, Parasempatik etki, Toparlanma

INVESTIGATION OF THE CHANGES IN HRV IN THE IMMEDIATE 48 HOURS FOLLOWING A 1 HOUR RUNNING EXERCISE IN TRAINED ADULTS

The purpose of this study is to investigate the HRV in trained people during the first 48 hours after a 1 hour running. Eight healthy males voluntarily participated in this study. Each subject ran for 1 hour at 70% VO2max. HRV measurements took 5 min for each person and those were applied before (Be) and after 30 minutes (30min), 24 hours (24h), 48 hours (48h) following a 1 hour-running. According to the test results; HRV at post-30 min was found significantly higher than the others and LF/HF higher than Be and post- 24 h either. For SDNN, TP and HF; results at post-30 min were significantly lower than the others. SDSD and RMSSD results were significantly lower at post-30 min than the ones at post-24 h and post-48 h. For HFnu results, it was found that the result at post-30 min was significantly lower than Be, for LF results at post-30 min was significantly lower than post-24 h and LFnu was found significantly higher at post-30 min than the values in resting period. In conclusion, the rise in HR and LF/HF and the decline in SDNN, SDSD, RMSSD, TP, HF, HFnu and LF were the indicators of the sympathetic system activity which is still active 30 min after the running. Another result of this study is that the effects of an intense physical activity on heart return to normal in 24 hours, so it means the heart recovers in that period

Keywords:

Heart rate variability, Sympathetic effect, Parasympathetic effect, Recovery,

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