He expects a commitment, and he promises results.
McDonald, who has 10 years of experience as a fitness and nutrition professional, said most people who vow to be healthier in 2011 won't succeed because their workouts will lack intensity, accountability and variety.
He tries to incorporate all three into his program, which has been in Jasper since fall 2009.
Each boot camp is fast-paced and requires participants to use unconventional exercise equipment, such as tires, that keeps them from getting bored and constantly challenges their body. He calls it "functional fitness."
"If you're just walking on a treadmill, it's not going to make your body change. You have to get it out of its comfort zone," McDonald said.
He added that clients who miss a few classes can expect a phone call from Thomas Rowe, the trainer who leads Jasper's boot camps.
"Excuses are going to come up. You're going to have to take your kid to practice or something like that and you're going to get out of the routine," McDonald said.
Boot camp workouts last 45 minutes and are held three days a week at Memorial Park Natatorium. A new session starts Monday.
McDonald said that there is no quick-fix for getting in shape. A New Year's resolution will be forgotten by February, but a lifestyle change will last longer.
"Working out has got to be like brushing your teeth. It's got to be something that's just part of what you do," McDonald said.
For more information, visit www.firmbodybootcamps.com.