Figure 2 (IMAGE) Tohoku University Caption Transition process from walking to running controlled using the AI-CPG method. (a) Sinusoidal signals with increasing frequency were used as input to the rhythm generator of the CPG controller. (b) Centre-of-gravity velocity, froude number and flight phase ratio. The black dashed lines indicate where the gait changes. (c) Transition from walking to running. (d) Time diagram of the walking cycle. (e) Time diagram of the running cycle. Credit Tohoku University Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.