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Microdosing: Old Wine in a New Bottle? Current State of Affairs and Future Avenues.

José Afonso, F. Nakamura, Ivan Baptista, Gonçalo Rendeiro-Pinho, João Brito, Pedro Figueiredo

International Journal of Sports Physiology and Performance October 6, 2022 DOI: 10.1123/ijspp.2022-0291 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Theoretical or philosophical paper Peer reviewed
Topics Microdosing
Key points Proposes that exercise microdosing should be reframed as the minimal dose that develops or maintains capacities or skills, distinct from the broader concept of distributed practice.

Abstract

Purpose: Microdosing of exercise aims to deliver smaller daily training doses but at a higher weekly frequency, adding up to a similar weekly volume as in nonmicrodosed training. This commentary critically discusses this concept, which appears to be a rebranding of the "old" distributed practice of motor learning. DEVELOPMENT We propose that microdosing should relate to the minimal dose that develops or at least maintains the selected capacities or skills as this training dose matters to practitioners, especially during the in-season period. Moreover, microdosing has been applied mainly to develop strength and endurance, but abilities such as sprinting and changing direction could also be microdosed, as well as technical-tactical skills.

Conclusions: The concept of microdosing should be reframed to avoid redundancy with the concept of distributed practice while providing valuable information concerning the minimum doses that still generate the intended effects and the thresholds that determine whether a dose is "micro" or not.