This study examined the effects of 3 different acute exercise modes on sustained attention in elderly adults. Twelve experienced male Tai Chi Chuan (TCC) practitioners were assigned to: TCC, coordination program and ergometer cycling. Each exercise session lasted for 30 minutes. Before and after the exercise a 14 min Continues Performance Test (CPT) was conducted to evaluate sustained attention. Results: After TCC a value for attentiveness (Detectability) improved significantly with p=0.01. Decreasing commission mistakes (p=0.06) and hit reaction time (p=0.09) showed a tendency for higher attention levels. Hit reaction time value (p=0.026) and hit reaction time standard deviation (p=0.002) reduced significantly after the coordination session. Commission mistakes decreased significantly (p=0.031) after ergometer cycling. These results demonstrate that each exercise mode influences attention markers differently; Coordinative challenging exercises are more beneficial for attention; TCC in specific for attentiveness and inhibition; and aerobic training for inhibition.