Interview with Jacqueline M. Duda for Costco Connection magazine, January 2010.
'Other exercisers might copycat a friend's routine and do the same thing over and over again. After a while their muscles quit responding. "They fail to see results, and just...stop." explains Costco member Liz Carney, a CPT in San Clemente, California. "A trainer can show you new tricks and keep it fun." Exercising incorrectly can also lead to muscle imbalance and injury. "Having a professional correct your form is one of the biggest reasons to hire a trainer," adds Carney.
Carney, a licensed sports nutritionist, also counsels clients on nutrition. A healthy diet helps the body build muscle, increase metabolism, and burn fat.' (page 46, Costco Connection Magazine)
see the full article below...