Prime Time Boost Make squats using free-weight barbells part of your fitness routine to develop muscle mass and attain a powerful physique. Squats are one of the best muscle building activities because they work out 5 major muscle groups at the same time Prime Time Boost Donkey calf raises are a wonderful way to aid you in building your calf muscles. They are a great way to help you work out your calves. A partner is helpful to lay on and help you to raise your calves Prime Time Boost A good fitness trick involves putting your tongue firmly to the roof of the mouth while you do your crunches or situps. Holding your tongue in this position keeps your neck muscles
