When George Brooks first began investigating lactate, or lactic acid, sports physiologists saw it as a muscle poison that lowered performance. His research over decades has reversed that picture, ...

Conventional wisdom has long held that lactic acid is a metabolic scourge, bringing hard exercise stints to a screeching halt and causing next-day soreness. Recent research shows how wrong that rap is ...

For as long as I’ve been running – and I recently passed the four-decade mark – I’ve been practising certain key principles of our sport. Run long to develop endurance. Run fast to build speed. Take ...