Another reason to avoid the scale
A hard workout increases your metabolism, often resulting in a small increase in total body water.
I would never step on that thing the day after leg day…. If you're sore. Have stiff legs. Have a hard time sitting on the toilet…… when this happens your legs lose definition. Have you ever put on jeans post leg day or day after? Ya, you start questioning your diet but that's not usually the case.
Reason for the loss of definition/tight pants, is your body is retaining water in the muscles to help them recover. A person can easily hold 3-6lbs of water depending on the soreness and size of the muscles.
Water is a necessary component of rebuilding muscles and stabilizing the body after a workout. The body stores water in the muscles and cells as part of the recovery process.
So don't freak out when you train legs to trim them up and they actually look bigger the next day. They are RECOVERING!
AND, if you must weigh…do it once a week, the day after your day off. That will also help keep your day off in check.