Final answer:
Current research favors multiple-set protocols over single-set ones when the goal is maximal strength gain in a strength training program. Single sets may still offer benefits for beginners, but for maximum gains, a transition to multiple sets, paired with adequate rest and proper nutrition, is typically recommended.
Step-by-step explanation:
When maximal strength gain is the principal goal of a strength training program, current evidence suggests that single-set protocols may be less effective than multiple-set protocols. While single sets can be beneficial for beginners and may lead to some strength gains, research indicates that for those looking to achieve maximal strength, it is generally recommended to progress to multiple sets. This is because multiple sets are known to provide greater stimuli for muscle adaptation, leading to more significant increases in muscle strength and size. The key is to ensure that the training routine is paired with adequate rest, proper nutrition, workout intensity, and a plan that targets all major muscle groups.
It is also essential to note that the ideal number of sets can vary based on the individual's fitness level, previous training experience, recovery capacity, and specific goals. Therefore, working with a certified personal trainer or a strength and conditioning coach can help in customizing an effective training plan designed for optimal strength gains.