Maksimal Aerobik Egzersiz Sonrası Laktat Seviyelerinde Cinsiyet Farklılıkları

Yıl 2018, , 146 - 154, 31.12.2018

Ali Işın , Berkay Löklüoğlu Ayşen Türk , Tuba Melekoğlu

https://doi.org/10.30769/usbd.474015

Öz

Bu çalışmanın amacı; bitkinliğe varan ve kademeli olarak artan
şiddetteki egzersiz sonrasında kanda oluşan laktat düzeylerinin cinsiyete
göre değişimini incelemektir. Çalışmaya gönüllü olan ve araştırmaya dâhil
edilme kriterlerine göre (18-20 yaş aralığında, benzer antrenman geçmişine,
normal vücut kütle indeksi değerlerine (18.5-24.9 kg/m²) ve egzersiz
öncesi normal laktat düzeyine sahip olan (<2 mmol)); 70
erkek (yaş:19.15±0.06 yıl; boy: 177.64±6.62 cm ve ağırlık: 67.99±6.52 kg) ve
30 kadın (yaş: 18.98±0.11 yıl; boy: 168.51±6.50 cm ve ağırlık: 58.16±7.34
kg) katılmıştır. Maksimal aerobik gücü belirlemek ve kademeli olarak artan
şiddette egzersiz uygulamak üzere 20 m mekik testi uygulanmıştır. Kan laktat
konsantrasyonları aerobik performans testinden önce ve hemen sonrasında kulak
memesinden alınmıştır. Erkeklerin 20 m mekik testi değerlerine göre hesaplanan
aerobik güçleri beklenildiği şekilde kadınlara göre daha yüksek olarak tespit
edilmiştir (53.44±2.29 ml.kg^-1.dk^-1 karşın
43.35±4.95 ml.kg^-1.dk^-1, p<0.001). Maksimal oksijen
tüketimi değerleri erkeklerde daha yüksek bulunmasına karşın, maksimal aerobik
performanstan sonraki laktat seviyelerinin kadın ve erkekler arasında benzer
olduğu görülmüştür (9.90±1.95 mmol/l karşın 9.46±1.69 mmol/l, p=0.28).
Araştırmadan elde edilen sonuçlar göstermektedir ki, erkeklerin aerobik
kapasitelerinin ve egzersiz performanslarının kadınlara göre yüksek olmasıyla
birlikte, kanda biriken laktat düzeyleri benzerlik göstermektedir. Kadın ve
erkeklerin maksimal egzersizden sonraki laktat düzeyleri arasında anlamlı
farklılık tespit edilememiştir.

Anahtar Kelimeler

Aerobik performans, Maksimal oksijen tüketimi, Laktat, Cinsiyet

Gender Differences in Maximal Aerobic Performance and Lactate Levels

Öz

The aim of this study was to examine the differences of blood lactate
levels in response to incremental exhausting exercise according to gender. 70
men (mean ± SD: age:19.15±0.06 years; height:177.64±6.62 cm and weight: 67.99±6.52
kg) and 30 women (age: 18.98 ± 0.11 years; height:168.51±6.50 cm and weight:
58.16±7.34 kg) aged 18-20 who had similar training history, normal body mass
index values (18.5-24.9 kg/m²) and normal lactate level in
pre-exercise (<2 mmol) were included in this study.  A 20 m shuttle test was used to determine
maximal aerobic power. Blood lactate concentrations were taken from the earlobe
before and immediately after the aerobic performance test. The aerobic power
values of males were higher than females as expected. (53.44±2.29 ml.kg^-1.dk^-1
versus 43.35±4.95 ml.kg^-1.dk^-1, p<0.001). Although maximal oxygen
consumption values were found higher in males, it was seemed that the lactate
levels were similar between groups after maximal aerobic performance (9.90±1.95
mmol/l vs 9.46±1.69 mmol/l, p=0.28). Our results indicate that, even
if aerobic capacity and exercise performance of males was higher than females,
they have similar blood lactate levels. There was no significant
difference between peak lactate levels of males and females. 

Anahtar Kelimeler

Aerobic performance, Maximal Oxygen Consumption, Lactate, Gender

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