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Dennis Dreiskaemper, Bernd Strauss, Norbert Hagemann, and Dirk Büsch

Hill and Barton (2005) showed that fighters in tae kwon do, boxing, and wrestling who wore red jerseys during the 2004 Olympic Games won more often than those wearing blue jerseys. Regarding these results, this study investigated the effects of jersey color during a combat situation on fighters’ physical parameters of strength and heart rate. An artificial, experimental combat situation was created in which the color of sport attire was assigned randomly. Fourteen pairs of male athletes matched for weight, height, and age had to fight each other: once in a red jersey and once in a blue. Heart rate (before, during, and after the fight) and strength (before the fight) were tested wearing the blue and the red jerseys. Participants wearing red jerseys had significantly higher heart rates and significantly higher pre-contest values on the strength test. Results showed that participants’ body functions are influenced by wearing red equipment.

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Andrea S. Hartmann, Florian Steenbergen, Silja Vocks, Dirk Büsch, and Manuel Waldorf

Fitness training to attain the lean body ideal is becoming increasingly popular among women. However, it remains unclear how the drive for leanness (DL), as compared to the drives for thinness (DT) and muscularity (DM), relates to body image pathology and substance use in female weight-trainers. Participants (N = 168) completed a survey assessing DL, DT, DM, eating and body dysmorphic disorder pathology, and substance use. DT and DM were related to eating disorder and body dysmorphic disorder symptoms (all r ≥ .29; all ps < .01), while DL only to the former (r = .19, p < .05). Supplement use was associated with DL and DM (r = .17 and .55; both p < .01) and pharmaceutical use with DT and DM (r ≥ .21; both p < .01). Female weight-trainers should not be neglected in body image disorder prevention, with a particular focus on DT and DM.