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Uta Kraus, Sophie Clara Holtmann, and Tanja Legenbauer

Rowing – A Sport With a Higher Risk for Eating Disturbances Despite the fact that lightweight rowing represents a weight-sensitive discipline, little is known about the occurrence of eating disturbances in competitive rowers ( Sykora, Grilo, Wilfley, & Brownell, 1993 ). In rowing, individuals are

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Gary J. Slater, Anthony J. Rice, David Jenkins, Jason Gulbin, and Allan G. Hahn

To strengthen the depth of lightweight rowing talent, we sought to identify experienced heavyweight rowers who possessed physique traits that predisposed them to excellence as a lightweight. Identified athletes (n = 3) were monitored over 16 wk. Variables measured included performance, anthropometric indices, and selected biochemical and metabolic parameters. All athletes decreased their body mass (range 2.0 to 8.0 kg), with muscle mass accounting for a large proportion of this (31.7 to 84.6%). Two athletes were able to maintain their performance despite reductions in body mass. However, performance was compromised for the athlete who experienced the greatest weight loss. In summary, smaller heavyweight rowers can successfully make the transition into the lightweight category, being nationally competitive in their first season as a lightweight.

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Jennifer I. Gapin and Brianna Kearns

Athletes in sports with weight requirements may be especially vulnerable to eating disorders (EDs), yet there is limited research regarding collegiate rowers. Therefore, the purpose of this study was to examine prevalence rates of ED symptoms in 133 male and female competitive collegiate rowers in lightweight and open weight programs. This is the first study to examine eating pathology in rowers using a diagnostic tool based on DSM-IV criteria, the Q-EDD; and examining ED symptoms using the EDI-2 (drive for thinness [DT] and body dissatisfaction [BD]). The majority of rowers were classified as symptomatic (n = 65; 49%) or clinical (n = 5; 4%). Lightweight rowers had a significantly higher prevalence of eating pathology and a significantly greater DT and BD than open weight rowers. Males had considerably higher prevalence of eating pathology than females, but females had significantly greater BD. Ongoing monitoring of rowers’ eating behaviors is highly encouraged. Implications for counseling and prevention are discussed.

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Peter D. Kupcis, Gary J. Slater, Cathryn L. Pruscino, and Justin G. Kemp

Purpose:

The effect of sodium bicarbonate (NaHCO3) ingestion on prerace hydration status and on 2000 m ergometer performance in elite lightweight rowers was examined using a randomized, cross-over, double-blinded design.

Methods:

To simulate body mass (BM) management strategies common to lightweight rowing, oarsmen reduced BM by approx. 4% in the 24 h preceding the trials, and, in the 2 h before performance, undertook nutritional recovery consisting of mean 43.2 kJ/kg, 2.2 g of CHO per kilogram, 31.8 mg of Na+ per kilogram, 24.3 mL of H2O per kilogram, and NaHCO3 (0.3 g of NaHCO3 per kilogram BM) or placebo (PL; 0.15 g of corn flour per kilogram BM) at 70 to 90 min before racing.

Results:

At 25 min before performance, NaHCO3 had increased blood pH (7.48 ± 0.02 vs PL: 7.41 ± 0.03, P = .005) and bicarbonate concentrations (29.1 ± 1.8 vs PL: 23.9 ± 1.6 mmol/L, P < .001), whereas BM, urine specific gravity, and plasma volume changes were similar between trials. Rowing ergometer times were similar between trials (NaHCO3: 397.8 ± 12.6; PL: 398.6 ± 13.8 s, P = .417), whereas posttest bicarbonate (11.6 ± 2.3 vs 9.4 ± 1.8 mmol/L, P = .003) and lactate concentration increases (13.4 ± 1.7 vs 11.9 ± 1.9 mmol/L, P = .001) were greater with NaHCO3.

Conclusion:

Sodium bicarbonate did not further enhance rehydration or performance in lightweight rowers when undertaking recommended post-weigh-in nutritional recovery strategies.

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Gwen E. Chapman

This paper uses a Foucauldian framework for understanding how human experience is shaped by relations of power to explore the weight management practices of members of a women’s lightweight rowing team. Like other forms of disciplinary power, making weight involves implementing a regimen governed by normalizing assumptions, maintained through self-monitoring, and supported by discourse. The practices of making weight also are examined as a technology of the self that the rowers used to create and understand themselves. The position of women’s sport at the intersection of sports and gender discourse offered the rowers opportunities to oppose relations of power while reinforcing their limits within the confines of a disciplinary matrix.

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Shawn M. Talbott and Sue A. Shapses

The purpose of this study was to investigate the influence of an acute 24-hr fast versus usual 24-hr dietary intake on markers of bone turnover in collegiate lightweight male rowers. Bone turnover was measured by serum osteocalcin (OC) and urinary excretion of pyridinium cross-links (pyridinoline [PYD] and deoxypyridinoline [DPD]). Fasting subjects (F) (n = 14) reduced body weight by 1.7 ± 0.5 kg but there was no significant change among nonfasting subjects (NF) (n = 13). Following 24 hr of fasting, PYD and DPD were lower in F (14.1 ± 2.2 and 5.2 ± 0.7 nmol/mmol creatinine, respectively) compared to NF (16.4 ± 3.6 and 6.0 ± 0.8 nmol/mmol creatinine) (p < .05). Fasting also reduced OC levels (4.8 ± 0.4 ng/ml) compared to NF (6.1 ± 0.9 ng/ml) (p < .01). Stepwise regression analysis of NF dietary intake indicated that energy intake explained a greater portion of the variation in bone turnover for PYD (34%), DPD (36%), and osteocalcin (46%) compared to other nutrients (p < .05). These results indicate that bone turnover is reduced by 24 hr of fasting and suggest a role for dietary energy intake in regulating bone turnover.

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Louise M. Burke, Graeme L. Close, Bronwen Lundy, Martin Mooses, James P. Morton, and Adam S. Tenforde

) • Lightweight rowers may have greater demands than open weight class to maintain low body weight. • Demands on lightweight rowers to maintain low weight over time promotes long-term strategies of prolonged LEA. • Lightweight rowers may be at higher risk for low BMD, rib fractures, and lower testosterone. • Open

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Kevin G. Aubol, Jillian L. Hawkins, and Clare E. Milner

acceleration with a lightweight triaxial accelerometer mounted on the distal tibia. The MDDs were small for both peak axial and peak resultant tibial acceleration measured during overground and treadmill running. To compare these findings with the literature, the MDDs reported during overground running by Van

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Hannah W. Tucker, Emily R. Tobin, and Matthew F. Moran

study was to evaluate the influence of fixation method of a lightweight IMU device mounted to the tibia during SLH landing. The most commonly reported fixation method (DST) was compared with a silicon strap with Velcro adhesion (SS). It was hypothesized that SS would produce comparable acceleration

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Damir Zubac, Drazen Cular, and Uros Marusic

their boxing practice; and investigators did not encourage boxers to hydrate. Finally, in agreement with the previous studies, 23 athletes were assigned into 2 groups: lightweight (L WB , from flyweight to welterweight, n = 11) and heavyweight (H WB , from middleweight to superheavyweight, n = 12