For the second objective, we hypothesized that increased abnormalities of the gait and reaching kinematics in FMR1 premutation carriers would be associated with increased age, CGG repeat length, and clinically rated movement issues, as well as lower IQ scores, as they are all factors contributing to FXTAS risk, severity, and progression [1,2]. Here, FMR1 is linked to fragile X-associated tremor/ataxia syndrome.