TY - JOUR PY - 2006// TI - Serum concentrations of two biochemical markers of brain tissue damage S-100B and neurone specific enolase are increased in elite female soccer players after a competitive game JO - British journal of sports medicine A1 - Stålnacke, B-m A1 - Ohlsson, A. A1 - Tegner, Y. A1 - Sojka, P. SP - 313 EP - 316 VL - 40 IS - 4 N2 - BACKGROUND: It is a matter of debate whether or not ordinary heading of the ball in soccer causes injury to brain tissue.

OBJECTIVE: To analyse concentrations of the biochemical markers of brain tissue damage S-100B and neurone specific enolase (NSE) in serum of female elite soccer players in association with a competitive game.

METHODS: Venous blood samples were obtained from 44 female soccer players before and after a competitive game for analysis. The number of headers and trauma events (falls, collisions, etc) was assessed from videotape recordings for each player.

RESULTS: Concentrations of both brain damage markers were increased after the game (S-100B, 0.18 (0.11) v 0.11 (0.05) microg/l (p = 0.000); NSE, 10.14 (1.74) v 9.05 (1.59) microg/l (p = 0.001)). There was a significant correlation between changes in S-100B concentrations and both the number of headers (r = 0.430, p = 0.004) and the number of other trauma events (r = 0.517, p < 0.001).

CONCLUSION: The concentrations of both S-100B and NSE were increased by game associated activities and events. The increases in S-100B concentration were significantly related to the number of headers and other trauma events, which indicates that both these factors may have contributed to these increases.

Language: en

LA - en SN - 0306-3674 UR - http://dx.doi.org/10.1136/bjsm.2005.021584 ID - ref1 ER -