Joe Trinsey's long-form volleyball coaching newsletter digs deeply into the debate between explicit instruction and constructivist 'let them figure it out' approaches, drawing on reader responses and research such as Ecological Dynamics. Readers get detailed, reasoned analysis with video examples aimed at coaches who want to refine their teaching.

A translated, research-driven newsletter on endurance training from a complex systems perspective, covering training zones, durability, performance monitoring and individual variability in response to training. It offers reasoned critiques of common training practices, backed by references to studies and the author's own framework.

A weekly newsletter that examines recent studies on exercise physiology, nutrition, supplements and wearable data, with the author's own experience woven in. Readers get explanations of what the research does and does not show, and the author's reasoning on topics like carbohydrate fueling and creatine.

Science-based articles on endurance training for triathletes, cyclists and runners, covering physiology, recovery, nutrition and race-day practices. Each issue explains how a topic works, corrects common myths and gives practical guidance.