A 4-day split workout is a fantastic strategy for building muscle. Weight training known as “split system” divides exercises into upper- and lower-body training phases.
The 4-day split workout requires four trips to the gym each week. Every session focuses on a distinct muscle area. While the target muscle groups are being worked the hardest, other muscles can recuperate on days when they aren’t being exercised. Using a 4-Day Split program, you may focus on building strength, hypertrophy, and endurance without endangering your body. You must also schedule time for rest, while also fitting in other fun pastimes like cycling, running, or any other sport.
Source:https://www.sportskeeda.com/health-and-fitness/how-4-day-split-workout-routine-work
