Vanessa Shepherd lifts a ball above her head as she works out with the encouragement of Felicia Short, 37, instructor and owner of Fit4Life Boot Camp in Akron, Ohio. (Mike Cardew/Akron Beacon Journal)

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Crystal Robinson, 42, works out with an exercise ball during a class at Fit4Life Boot Camp in Akron, Ohio. (Mike Cardew/Akron Beacon Journal)

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Stacey Childs, 37, does crunches on an exercise ball with the rest of the class at the Fit4Life Boot Camp in Akron, Ohio. (Mike Cardew/Akron Beacon Journal)

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Felicia Short, 37, reflects in a mirror as she leads her class through the 45-minute non-stop workout at Fit4Life Boot Camp in Akron, Ohio. (Mike Cardew/Akron Beacon Journal)

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Felicia Short, 37, calls out to her class as she leads them through leg lifts during the 45-minute non-stop workout at Fit4Life Boot Camp in Akron, Ohio. (Mike Cardew/Akron Beacon Journal)

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