Serum testosterone, growth hormone, and insulin-like growth factor-1 levels, mental reaction time, and maximal aerobic exercise in sedentary and long-term physically trained elderly males

Ari Z., KUTLU N., Uyanik B. S., TANELİ F., Buyukyazi G., Tavli T.

International Journal of Neuroscience, cilt.114, sa.5, ss.623-637, 2004 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 114 Sayı: 5
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1080/00207450490430499
  • Dergi Adı: International Journal of Neuroscience
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.623-637
  • Anahtar Kelimeler: aging, exercise, growth hormone, insulin-like growth factor-1, reaction time, testosterone
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

The aim of the study was to investigate the effect of regular exercise on maximum oxygen uptake capacity (VO2max), reaction time (RT), testosterone (T), growth hormone (GH), insulin-like growth factor-I (IGF-1) in athletes compared to sedentary controls. VO2max RT, T, GH, and IGF-I levels were 31.2 ± 6.2 ml/min/kg, 106.7 ± 23.2 s, 8.3 ± 1. 3 ng/mL 1.6 ± 0.7 ng/mL, 106.5 ± 27.0 ng/mL in master athlete group and 18.8 ± 5.1 ml/min/kg, 148.3 ± 39.3 s, 5.4 ± 1.7 ng/mL, 0.8 ± 0.3 ng/mL, 90.2 ± 23.8 ng/mL in sedentary control group, respectively. The differences between regularly exercising males and the control group of sedentary males were found to be statistically significant. The results showed that long-term exercise decreased RT and increased VO 2max, T, and GH in elderly males; elevated serum T and GH levels may be advantageous for brain functions.