When we lift free weights, we like to take a weight in each hand to keep ourselves nice and balanced, but according to health and fitness site Livestrong.com, this isn't an ideal strategy. An imbalance of weight can actually provide a better workout and exercise more than just the muscles you're currently targeting:
Photo by Dennis Owusu-Ansah (Shutterstock).
Since your core stabilises your body, creating instability means it has to work that much harder. That means you can work your abs without ever doing a crunch. Here's how: Load one side of your body. Hold a weight on one shoulder during a lunge, press just one dumbbell overhead during a shoulder press, or perform a standing, single-arm cable chest press.
(Note: Links to the exercise videos were added by us so you can learn how to do them if you're not already familiar.)
Pretty simple. That one little adjustment can help you get a lot more out of each exercise.
The 20 Best Fitness Tips of All Time [Livestrong.com]