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The association between age and handgrip strength for men (A; dark grey diamonds) and women (B; white circles). Regression line (wide solid line) and 95% prediction interval (narrow solid line), T score equal to –2.0 (dashed line), data more than 2 SD below the young adult reference mean (shaded area), regression equations and adjusted R 2 values are shown. HGS, handgrip strength.
