BATTLE GROUND — About 25 people are standing next to chairs in the Battle Ground Community Center.They walk through exercises like side stretches and lateral arm raises, while a handful of their peers at nearby tables read, drink coffee and chat. This is the scene on Tuesday, Wednesday and Friday mornings at the community center, when EnhanceFitness classes take place.EnhanceFitness is an evidence-based group exercise program aimed at older adults, and free to those 60 and older. The fitness class utilizes easy-to-learn movements that aren’t too intense with a group atmosphere, which promotes bonding and keeps people committed to coming back.Hourlong sessions begin with a five-minute warmup, followed by 20 minutes of aerobic exercise, a five-minute cool-down, 20 minutes of strength training with soft cuff weights and, finally, 10 minutes of stretching. Dynamic and static balance exercises are peppered throughout.The class is offered by the Area Agency on Aging and Disabilities of Southwest Washington to help the area’s growing aging population.Laurie Porter started teaching the Battle Ground class almost nine years ago and said some of the original members still attend.“It includes all components of fitness. Cardiovascular fitness, strength, balance and flexibility, and it’s a well-designed program,” Porter said after a class. “A lot of people just want to stay in shape. There are a lot of people who want to come in and lose weight. Or they want to regain their strength and balance.”Battle Ground resident Susan Zoller started attending Battle Ground’s EnhanceFitness around October — there are also classes in Vancouver, Camas and Washougal. Zoller tries to make as many classes as she can in between doing consulting work and her grandkids.