The personal trainers keeping celebrities in shape

Gunnar Peterson - The personal trainer (PT) is known for working with Angelina Jolie, and Sofia Vergara. 

Gunnar Peterson - Angelina Jolie - Some of his famous workouts include G-Force, Core Secrets, Reduce and Renew, Ready to Go, and Stronger by Design.

Gunnar Peterson - Sofia Vergara - Gunnar Peterson's workouts are based on the notion that there are no quick fixes. It is a matter of consistency and commitment.

Harley Pasternak - The PT has trained many A-listers, including Lady Gaga, Rihanna, Katy Perry, and Megan Fox.

Harley Pasternak - Lady Gaga - Before becoming a PT, Harley Pasternak worked as a Nutrition and Exercise Scientist for Canada's Department of National Defense.

Harley Pasternak - Rihanna - Harley Pasternak is the author of manyfitness and diet bestsellers.

Harley Pasternak - Katy Perry - Many of his workouts are based on body weight exercises and favor endurance.

Harley Pasternak - Megan Fox - These exercises speed up the metabolism, burn more calories, and have a fat-burning effect.

Anna Kaiser - The personal trainer's client list include Sarah Jessica Parker and Shakira.

Anna Kaiser - Sarah Jessica Parker - Anna Kaiser believes that the worst enemies of a fitness routine are pain and boredom.

Anna Kaiser - Shakira - She is famous for mixing yoga, pilates, and dance moves in her workouts.

Justin Gelband - Among his famous clients you'll find some Victoria's Secret models such as Miranda Kerr, Irina Shayk, and Candice Swanepoel.

Justin Gelband - Miranda Kerr - In addition to being a PT, Justin Gelband is also a massage therapist.

Justin Gelband - Irina Shayk - Justin Gelband creates nutritional programs and his workouts are based on pilates, boxing, and yoga techniques.

Justin Gelband - Candice Swanepoel - The PT also likes to incorporate water therapies in his workouts. He usually teaches his clients how to swim.

Ashley Borden - She has worked with celebrities such as Christina Aguilera and Ryan Gosling.

Ashley Borden - Ryan Gosling - Ashley Borden is a fitness and lifestyle consultant. Her technique is to take on her clients' weaknesses and turn them into something positive.

Ashley Borden - Christina Aguilera - Ashley Borden advises women to consume essential fatty acids as these are considered good fats.

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