The explosive start of a swim race requires a 0 to 100% effort at the beep of a horn. From the starting blocks, the swimmer's legs essentially perform a maximal broad jump while the arms shoot overhead into a streamline position. Power, reaction speed, mobility, and aerodynamics are several of the necessities to a strong start, and a strong start is essential to a successful race. The physical and mental preparation before a race is highly important. For many swimmer's, part of this race preparation involves swinging their arms in circles and slapping their arms around their body. These large warm-up movements are so common that even Michael Phelps has a video promoting his impressive #MPbackslap. So why do swimmers perform these pre-race motions? Priming the TissuesAthletes from all sports have their signature warm-up movements. These movements are specific to the sport, but general in their functional intention. For swimmers, the specific purpose of the backslap is to activate the shoulder and core muscles in a quick, explosive, and springy nature. Generally, the functional intention is to prime the tissues in a similar fashion to how they need to work during the race. Slapping the arms around the body wakes up all the muscles from the powerful Latissimus dorsi muscle down to the tips of the fingers. The vibration of the slap jump starts the nervous system and sends blood flow and oxygen to the arms. Additionally, the backslap is a plyometric movement for the upper body. The quick stretch and release primes the upper body's connective tissues, such as the tendons. Similar to how a track and field sprinter jumps in place before a 100-yard dash, a swimmer performs the backslap to mobilize their tissues and find their tempo before hopping off the block. Take Home Advice
Listen to Your BodyMany factors play into a successful warm-up, but the most important is listening to how your body feels.
-Jim Heafner PT, DPT, OCS
Owner, Heafner Health Physical Therapy 2/12/2023 10:32:27 pm
Nice Blog! The information you have provided is incredibly detailed and insightful. We appreciate you sharing this important bit of information with us. 6/6/2023 09:46:07 am
Swimmer's slap their arms before a race is an important part of their pre-race preparation. The purpose of the backslap is to activate the shoulder and core muscles in a quick, explosive, and springy nature. The vibration of the slap jump starts the nervous system and sends blood flow and oxygen to the arms. Additionally, the backslap is a plyometric movement for the upper body, primes the upper body's connective tissues, and mobilizes the tissues before hopping off the block.
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Impressive read on the science behind swimmers slapping their arms before a race. What other pre-race rituals have you found effective?
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