October 11th, 2017

Muscle Fatigue Is Greater On Leg Day

It’s not unusual for weight room regulars to look forward to their turn on the bench press. Squats are another story. A study recently published in the journal Medicine & Science in Sports & Exercise suggests recovering from a leg day workout might not be the same as when your work upper body muscle groups.
 
A dozen healthy young males performed 5 sets of 2-minute maximal voluntary contractions using knee extensor muscles. They got 8 minutes of rest between sets. On another day, they did the same workout using elbow flexors.
 
The average decrease in a subject’s ability to contract muscles was 12% greater after training leg muscles. White total fatigue was greater on legs, peripheral fatigue was greatest when working the elbows.