Freefall position vs. time full#

Freefalling allows us to limit muscle activation and conserve oxygen, which lets us put more focus on relaxation and equalization. If we are in constant motion throughout our entire dive, we are activating muscles and burning through our oxygen, which considerably shortens our dive times and limits our depth. Freefalling in freediving is the point where we stop moving completely, whether it is finning in CWT (Constant Weight), pulling the line in FIM (Free Immersion), or using arm and leg strokes in CNF (Constant Weight No-Fins), and we assume a relaxed, yet streamlined position, and start to sink, or “freefall.” Why Do We Freefall? Freefalling without holding the line. After passing the point of neutral buoyancy, we become negatively buoyant and use less strength and force on the descent due to gravity lending us a helping hand.

Freefall position vs. time full#

Our lungs are at their total lung capacity at the surface with a full breath, but according to Boyle’s Law, the volume of air in our lungs decreases as we descend, causing our lungs to shrink and causing us to become less buoyant.

We are positively buoyant at the surface, and add weights to make ourselves neutrally buoyant at around 10-15m (32-49ft) since most shallow water blackouts occur between 10m (32ft) and the surface this is a safety concept.