Add Yahoo as a preferred source to see more of our stories on Google. You know that the humble squat is one of the best exercises there is for building lower-body strength—and you're probably already ...

Plus, common mistakes to avoid.

Traditional squats aren't the only way to forge resilient lower-body power; these joint-friendly alternatives offer faster results with significantly less strain.

Squats are the best exercise for building muscle, world champion powerlifter Blaine Sumner told Insider. They're compound movements that engage multiple muscle groups. Sumner strength trains six days ...

Burpees are a popular exercise, but they can put a lot of stress on your joints. You can swap burpees for other lower-impact ...