If you've ever wondered why many determined lifters rely on pre-workout energy to help them focus on the task at hand, a study published in the Journal of Applied Physiology offers some insight into what can happen when your mind start to wander while the rest of you is busy hoisting stacks of plates.
Researchers had 55 men and women contract elbow flexor muscles at 20% of capacity until failure. Some were asked to calculate difficult math problems during the exercise while others focused on the physical work. Challenging mental math increased reps to failure by nearly 20% for women and nearly 10% for men.
A minor distraction had a very different impact. When told to solve easy math problems during exercise, only weaker subjects fatigued faster. To see how regular exercise impacts inactivity levels of average people, read today's Breaking News blog at optimumnutrition.com