If you're motivated by achievement and recognition from others, tie your goals to something personal like being healthy and fit for your family. We all want to feel like a good mom or dad and it certainly never hurts to get affirmation from others who see us feeding our children healthy options and staying active.
If you're more intrinsically motivated, take photos of yourself regularly so you can compare them and see the results. When you do notice changes, take a moment to reflect and bask in the glory. Allow your success to motivate you to future changes!
Your motivation to change can be related to fitness. You no longer want to be sedentary, overweight, or too thin. You want to change your lifestyle, feel better about yourself, and discover a new identity. If you're ready to change who you are, start identifying yourself as what you want to be: a cyclist, a runner, a bodybuilder, or a dancer. Tell people that's who you are. From there, your new self-identification becomes a self-fulfilling prophecy. You turn into what you want to be!
Another great way to use growth motivation is to look at your workout as a break, a time to focus on yourself without any work or kids to interrupt you. Personal time is so important for your own well-being. Thinking of your workout as personal, and therefore as a way to improve yourself will help you stick to your workouts.
If you're motivated by power, it means you want to control your own life. You want to determine the outcome and are thus more driven to create the outcome you want. If this sounds like you, you can harness your desire for control by setting smaller, attainable goals.
If you find this type of motivation is effective, you may want to think about signing up for an event like a fitness competition, a mud run, or a marathon. Along with paying an entry fee, the fear of stepping on stage or performing poorly at an event just might be the push you need. Buying fancy workout clothes and hiring a trainer can also play into this type of motivation. The fear of wasting money may actually keep you coming back to the gym.