Effects of Advanced Resistance Training Systems on Muscle Hypertrophy and Strength in Recreationally Trained Adults: A Systematic Review and Meta-Analysis.

For people who train casually, lifting lighter weights more times and lifting heavier weights fewer times produce similar muscle growth if the total work done is the same, but the heavier-weight approach might lead to slightly stronger performance.

When the total amount and intensity of workout effort are kept the same, performing more than one type of isolation exercise for each muscle group does not lead to greater muscle growth.

In adults aged 18–45 who train recreationally, advanced resistance training methods lead to a small but measurable increase in maximum strength compared to standard multiple-set routines, possibly because of better movement control and force generation, but do not reliably cause greater muscle growth.

In recreationally trained adults, alternative training methods like drop sets, tempo-controlled lifts, and cluster sets result in similar muscle growth and strength improvements as conventional multiple-set training, provided the total workload and effort level are the same. Their advantage appears to be in how efficiently they use time or manage fatigue, not in producing better physiological outcomes.

Among advanced weight training techniques, velocity-based training and eccentric overload lead to the greatest gains in maximum strength for people who train recreationally, primarily by maintaining consistent movement quality and increasing force production during the lowering phase of lifts.

In adults aged 18–45 who train regularly but are not elite athletes, different ways of organizing resistance training sets do not lead to meaningful differences in muscle growth. The amount of work done, how hard the muscles are pushed, and the overall effort are the main factors determining growth, not the specific arrangement of sets.