Beta-alanine and Elder Endurance

Inclusion Criteria: * 60-90 years of age * Living independently (not residing in an assisted living facility) * Through testing are found not to have sarcopenia * Gait speed \> 1 m/s * Skeletal Muscle Index \> 37% in men and \> 27.6 % in women * Exclusion Criteria * Responding with a "yes" to any question on the PAR-Q. * Are currently pregnant, or plan to try and become pregnant during the study * Functional impairments that could impede the person's ability to participate in a resistance training program * Current or recent use of supplements (within the past 3 months for non-alanine containing supplements or one year for supplements containing beta-alanine). Individuals taking only basic multivitamins (without any herbal co-ingredients) may still be allowed to participate. These situations will be reviewed on a case-by-case basis. * Are currently enrolled in a regular exercise program (more than once per week) * Current or recent smoker * Use of medication containing corticosteroids * Mini-mental score of 21 or below * Severe musculoskeletal impairment * Uncontrolled chronic disease * Major depression * Severe vestibular problems Exclusion Criteria: * Adults unable to consent * Individuals who are not yet adults (infants, children, teenagers) * Pregnant women * Prisoners