Figure 1From: The effects of long-term endurance training on the immune and endocrine systems of elderly men: the role of cytokines and anabolic hormonesPBMC proliferative response to mitogens (PHA and OKT-3). Elderly runners showed a trend to a higher response to PHA and a significantly higher response to OKT-3 than sedentary elderly subjects. They also showed a higher response to PHA than young subjects but not to OKT-3. Vertical bars indicate ±S.E.M. from mean value.Back to article page