2. Go for an Unstable Surface

For this concept, it is similar to my first point. If we exercise on an unstable surface, we need to exert more force to make our body more stable. The more unstable the surface is, the more effort that we need to make us more stable. Thus, opt for an unstable surface whenever possible. You can place your hands on a stability ball during planks or pushups. Other than that, you can also do steps on a Bosu trainer during lunges.

Consider All External Force or Resistance
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