As a general rule, most experienced athletes and personal trainers recommend a leg workout three times per week. This workout will usually be 15 to 20 minutes as part of a larger exercise routine that can be as long as one hour. It's also a good idea to target different parts of the leg on each successive workout day.
Advice: If your training consists of high-volume sets and reps, train legs once per week. If you're working at lower intensity or lower volume, train legs twice per week. Staple movements to incorporate are squats, leg presses, leg curls, leg extensions and lunges.
â€œFor many years, I did only five sets of squats when I really should have been. â€œI accepted the fact that leg workouts simply have to be brutal to be effective,â€ he .