The phrase "standard pushup" refers to a common type of exercise where you start in a plank position and lower your body down and then push back up using your arms, chest, and shoulders. Full definition
Compare that number with the maximum number of standard pushups you do. (fitnessandpower.com)
That's the reason why the wide - grip and standard pushups performed with The Perfect Push - Up elicited more muscle activity in the chest, triceps and front shoulders, while the narrow - grip pushups had a lower effect on these muscles. (fitnessandpower.com)