Differences in male and female brain size are relative to body size. This research was frequently cited to support the assertion that women are less intelligent than men. This study, however, did not control for differences in body size or age. This means the brain-to-body mass ratio is, on average, approximately the same for both sexes.
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Ten subjects were neither Caucasian nor African American and were, therefore, not included in the race analysis. Conclusion Strength training does not alter subcutaneous or intermuscular fat, regardless of sex or racial differences. Although men exhibit a greater muscle hypertrophic response to strength training than do women, the difference is small. Race does not influence this response. Maintaining reduced levels of fat in and around the muscle is important for the aging population because of its association with functional disabilities Thus, delaying the onset of sarcopenia and its related consequences has important health implications for older adults. Variations in regional body composition and its comorbidities seem to be related to sex and race differences in age-associated dysfunction and disability.
We reviewed literature on the differences and similarities between the 2 races relative to fat-free body mass water, mineral, and protein , fat patterning, and body dimensions and proportions. In general, blacks have a greater bone mineral density and body protein content than do whites, resulting in a greater fat-free body density. Additionally, there are racial differences in the distribution of subcutaneous fat and the length of the limbs relative to the trunk. The possibility that these differences are a result of ethnicity rather than of race is also examined.