Skeletal muscle mass increases over the first three decades of life, declines steadily through middle age, and more rapidly in older age. Sarcopenia describes a condition of significant loss of muscle mass in conjunction with reduced strength and function. While the changes in mass, strength and function across the lifespan are well-documented, little is known of the underlying neuromotor changes. PURPOSE: To examine the neuromotor mechanisms that underpin changes in muscles mass and function in older men with sarcopenia. METHODS: Twenty four older men (74.4 ±5.0yrs) were recruited for testing. Muscle and fat mass were determined by DXA (Norland XR-800, USA). Functional performance was assessed via isometric knee extension strength, timed-up-and-go (TUG), 5-times sit-to-stand (5TSTS), self-selected gait speed, and hand grip strength. Neuromotor function was assessed using electrical stimulation of the tibial nerve (Digitimer DS7AH, UK) and recording of EMG activity and torque during a graded plantar flexion contraction protocol. Measures included Level of Voluntary Activation (LoVA; 20%, 40%, 60% 80%, and 100% of MVC), resting and superimposed twitch (SIT), ankle torque, and EMG activity of the plantar and dorsi flexor muscles. RESULTS: Six older men were classified as sarcopenic based on DXA-derived measures of appendicular lean mass and height (<7.25kg/m2). Differences in LoVA and SIT were observed between older men and sarcopenic men at the 60% (LoVA: OM=85.5 ±5.5% SM=77.3 ±11.7%, p<0.05; SIT: OM=2.0 ±1.0% SM=3.6 ±2.8%, p<0.05) and 80% (LoVA: OM=95.8 ±2.4% SM=92.4 ±3.3%, p<0.05; SIT: OM=0.5 ±0.3% SM=1.2 ±0.8%, p<0.05) contraction intensities. Significant differences in knee extension strength were observed between older men and sarcopenic men (OM=512.2 ±125.2N SM=328.6 ±74.4N, p=0.03), however no other differences in functional performance measures were observed. CONCLUSIONS: These preliminary findings suggest that there are underlying neuromotor changes in men with sarcopenia, particularly during submaximal muscle contractions. Interestingly, men with sarcopenia were still able to maintain a similar level of functional ability compared to older healthy men. Future work will examine neuromotor characteristics in response to fatigue.