Loading (exercise) increases bone strength and reduces the likelihood of fractures later in life. However, questions remain as to the specific loading parameters that optimize bone strength. Past research investigating the effect of loading on bone strength have reported significant bilateral differences in bone characteristics favoring the dominant arm in male racket-sport players (Haapasalo et al., 2000) and former professional baseball pitchers (Warden et al 2014). Results also emphasized positive lifelong effects of loading on bone. Volleyball players primarily utilize a dominant side; therefore they are an excellent model to investigate the effects of bilateral loading on bone. PURPOSE: To determine bilateral differences in bone strength, including bone architecture, size and density in the radius. METHODS: 16 Division II female volleyball players (mean age 19 years + 1.15, height 1.74 + 0.69 m, weight 69.81 + 8.14 kg, body fat 23.86 + 5.73%) underwent peripheral quantitative computed tomography (pQCT) scans to measure bone strength on both the dominant and non-dominant radius. Trabecular bone variables (4% epiphyseal site) included trabecular bone mineral density (BMD.tb), total bone mineral content (Total BMC), total area (TotA), and compressive strength index (BSIc). Cortical bone variables (66% diaphyseal site) included cortical density (CoD), cortical area (CoA), strength strain index (pSSI), and moment of inertia (J). One-tailed paired T-tests were performed to compare the variables. RESULTS: No significant side to side differences were found. The side to side percent (%) differences found at the 4% site were BMD.tb (-0.45%), Total BMC (0.99%), TotA (-0.63%). The side to side percent (%) differences found at the 66% site were CoD (-0.97%), CoA (1.90%), pSSI (0.31%), J (5.23%). CONCLUSION: Volleyball may not result in loading significant enough to cause bilateral bone strength differences. Limitations include possible prevalent bilateral strength differences in the humerus, consideration of starting age (pre or post menarche) of playing volleyball, comparison of males and females of different sports.