Dreaming of being crippled and unable to run means there is a problem in your life. The desire to run symbolizes a fear you are afraid of. Your legs don’t work as your dream self attempts to run away from that fear, and it usually catches up when you wake up. This means that your subconscious knows you have to face whatever it is before it can catch up to you in reality. This can be related to being afraid of certain aspects in your life such as commitment or a new change in life. You are aware that in your life there will be things that are different, but instead of running you should try to embrace them.
Also, becoming crippled in a dream symbolizes a lack of power or change. You might feel like you have less control over things due to suddenly being physically weaker than normal strength.