The rectus femoris is the quadriceps muscle that crosses two joints rather than one. While the vastus lateralis, vastus medialis, and vastus intermedius cross only the knee, the rectus femoris originates at the anterior inferior iliac spine of the pelvis and crosses both the hip and the knee. This two-joint architecture means the rectus femoris…
Altitude training is the gold standard endurance performance intervention for decades. The reduced oxygen partial pressure at altitude stimulates erythropoietin release, increases red blood cell mass and haemoglobin, and produces measurable improvements in VO2max and endurance performance when the athlete returns to sea level. It is also expensive, logistically complex, and inaccessible to most athletes…
Isometric training — holding a static contraction without joint movement — is one of the oldest forms of resistance exercise and one of the most under-appreciated in modern strength and conditioning. Its reputation as a limited, rehabilitation-only tool until two decades of research overturned that view that have established it as a genuinely effective intervention…
Fasted cardio — cardiovascular exercise performed after an overnight fast, typically first thing in the morning before eating — is one of the most debated topics in fat loss training. The argument for it is intuitive: low blood glucose and insulin from overnight fasting force the body to oxidise fat for fuel during exercise, producing…
Breathing through the mouth during exercise is the default for most people. It feels necessary at moderate intensity, instinctive at high intensity, and the idea of restricting breathing to the nose during a training run sounds like an experiment in self-imposed oxygen deprivation. The research tells a more nuanced story. Nasal breathing during exercise activates…