Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to get a bigger upper body [title] Do higher amounts of repetitions. [step] There are two main types of exercises you can do in regards to weight lifting. You can choose lower amounts of repetitions or higher amounts of repetitions.

Ending1: This will help to build muscles in your arms, back, and shoulders. Stand tall with your feet shoulder width apart and your toes turned out. Ending2: For example, if you do crunches to burn fat, you can do 70 repetitions per set with chest presses. [substeps] Find a power pedometer online to use for specific stretches. Ending3: These exercises allow you to build muscle you may have otherwise not been able to work out with. [substeps] Running a distance of 300 to 400 meters is one example of a high number of repetitions you can perform. Ending4: Studies have shown that higher reps build more muscle mass. High volume sets, three to six, with repetitions ranging from six to 12, tend to increase muscle size.

Answer format: ending1/ending2/ending3/ending4