In a study, one group lifted weights for nine weeks (Continuous resistance training – CRT), while another group lifted for six weeks followed by a three weeks rest (Periodic resistance training - PTR). After the first nine week cycle the groups’ results were similar. The cycle was repeated for nine more weeks, and PTR group’s results were significantly higher.
A quote from the study, Comparison of muscle hypertrophy following 6-month of continuous and periodic strength training:
“Increase in muscle cross-sectional area [of muscle] and strength during the second 3-week detraining/6-week retraining cycle were significantly higher in the PTR group than in the CTR group.”
Consider that CTR group trained six weeks more and achieved inferior results - wasted time and effort. When rest is inadequate over-training results and improvement stops. At Austin Personal Trainers and New Orleans Personal Trainers we take great care in measuring exercise performance to be sure that the client is fully recovered. With full recovery you will continue to improve.