Which of the following descriptions matches the balance exercise principal? A. Targeted running should improve the performance of a certain task: running longer distances, lifting greater amounts of weight, and reaching higher levels of flexibility are all examples of how targeted exercise can improve performance. Repetition of specific exercises will help improve the given task.

B. A workout program must progress in its level of difficulty in order for the body to continue improving. If a workout never changes, the body will never reach a higher level of fitness.

C. In order for a fitness program to be fully effective, exercises that address all fitness components -- cardio insurance, resistance training, and flexibility -- must be incorporated on a regular basis. Focusing on just one of these components will hurt performance in other areas.

D. Exercise is most effective when a schedule is in place. Consistency helps you helps keep you motivated and your body in motion, so be sure to set and keep a regular schedule for working out.

Prompt: read the following case study and discuss the questions listed at the end of this page. brittany is a 15-year-old freshman in high school. she is the oldest child in a single parent family. she enjoys sports and participates in volleyball, basketball, track, and softball at school. her usual day consists of breakfast at home, which is usually a pop-tart on the way out of the house. lunch is a fast food meal with friends that often consists of a double cheeseburger, fries, and large regular soda pop after which she often feels stuffed and bloated, but feels she needs the calories for her busy sports schedule. she then doesn’t eat again until later in the evening even if she is hungry after school. supper is either a hot dog or pop at ball games or left-over food in the refrigerator after she gets home from practice. she doesn’t care much for fruits and vegetables other than bananas, corn and lettuce salad, as her mom seldom prepares them for the family or keeps fresh fruit on hand. she is 5’6” and weighs 115 pounds and would like to weigh closer to 100–105 pounds. a weight-for-height table puts her weight range at 125 pounds to 135 pounds. she is worried about gaining weight. a cute guy in her math class that she would like to date was overheard talking to his buddies and making fun of large girls in the class. she feels like she is always stressed for time with games and practices, homework to do in the evenings, and household duties she does for her mom who works to support the family. she feels like she has no leisure time for herself. when feeling extra stressed she will eat an entire large bag of potato chips or three to four cups of ice cream and then feel guilty afterward. questions: 1. name some of the components of brittany’s lifestyle and eating patterns that are contrary to the wellness approach to body size and weight management principles covered in this section. 2. what are some improvements she could make based on these principles? name as many as you can. what are some practical ways you can make improvements or healthy things you are already doing?