Serum Concentrations Of S100B Are Not Affected By Cycling To Exhaustion With Or Without Vibration
Journal of Human Kinetics
Medical Subject Headings
Hormones, Biomarkers, Signal Transduction, Nerve Growth Factors, Astrocytes, Vibration, Bicycling, S100 Calcium Binding Protein, Beta Subunit, Traumatic Exercise, Neurons, Male, Adult
The calcium-binding protein S100B is produced primarily by astrocytes and exerts concentration-dependent paracrine and autocrine effects on neurons and glia. The numerous findings of a correlation between S100B and traumatic brain injury (TBI) have resulted in the employment of this protein as a clinical biomarker for such injury. Our present aim was to determine whether cycling with (V) or without (NV) vibration alters serum concentrations of S100B. Twelve healthy, male non-smokers (age: 25.3±1.6 yrs, body mass: 74.2±5.9 kg, body height: 181.0±3.7 cm, VO2peak: 56.9±5.1 ml·min(-1)·kg(-1) (means ± SD)) completed in random order two separate trials to exhaustion on a vibrating bicycle (amplitude 4 mm and frequency 20 Hz) connected to an ergometer. The initial workload of 100 W was elevated by 50 W every 5 min and the mean maximal period of exercise was 25:27±1:30 min. The S100B in venous blood taken at rest, immediately after the test, and 30, 60 and 240 min post-exercise exhibited no significant differences (p>0.05), suggesting that cycling with and without vibration does not influence this parameter.
Schulte S, Schiffer T, Sperlich B, Kleinöder H, Holmberg HC. Serum concentrations of S100B are not affected by cycling to exhaustion with or without vibration. J Hum Kinet. 2011;30:59–63. doi:10.2478/v10078-011-0073-2