Relationship Between Lower Limb Tightness and Practice Time Among Adolescent Baseball Players With Symptomatic Osgood-Schlatter Disease.

Background: Osgood-Schlatter disease (OSD) is characterized by traction apophysitis of the tibial tuberosity. Few studies on symptomatic and asymptomatic OSD have correlated findings with clinical examination.

Purpose: To investigate the relationship between lower limb tightness and practice time among adolescent baseball players with symptomatic OSD.

Long-lasting change in 5-HT2A receptor-mediated behavior in rats after a single footshock.

To investigate the long-term functional change in the 5-HT(2A) receptor after acute stress, we examined the effect of single footshock on head shake behavior induced by the 5-HT(2A) receptor agent (+/-)-2,5-dimethoxy-4-iodoamphetamine hydrochloride (DOI) in rats. Head shakes were evoked in a dose-dependent manner by 0.1-10 mg/kg of DOI, and the maximal response was attenuated by a single footshock given 24 h before.