50-m Free Time Trial in Morning and Evening Result in no Performance Difference in Elite Swimmers

50-m Free Time Trial in Morning and Evening Result in no Performance Difference in Elite Swimmers

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Based on the circadian rhythms of hormone levels, gene expression, and core body temperature, it could be expected that the best performance in terms of strength, flexibility, alertness, and anaerobic power output occurs in the late afternoon. Indeed, improvements of 3.6% for 50 m, 1.9% for 100 m, and 0.8% for 400 m swimming performance were observed in the afternoon/evening …

Effect of Squat Depth and Load on Muscular Effort

Effect of Squat Depth and Load on Muscular Effort

Dr. GJohn Mullen Blog, Competition, Dr. John Mullen, Dryland, Latest&Greatest, Training Leave a Comment

The squat is a popular dry-land exercise for swimming. This is likely due to the numerous muscles involved and the common belief this motion mimics a flip turn (despite contradictory research). However, the effect the depth and load on the squat are unknown. Muscle force is hard to measure, therefore motion analysis techniques combined with the equations to solve for …

Auditory feedback helps adapt to altered environment

Auditory feedback helps adapt to altered environment

Dr. GJohn Mullen Blog, Competition, Dr. John Mullen, Latest&Greatest, Training Leave a Comment

Providing feedback during practice and competitions is common in all sports. Despite the difficulty of providing feedback during swimming, coaches and teammates commonly provide numerous visual and auditory cues. Sensory substitution is the skill of the nervous system to receive input from one sensory system and transmit this information to another sensory system. For example, in swimming the sensory system …

Comparing Sprint and Strength Training Methods|

Comparing Sprint and Strength Training Methods

Dr. GJohn Mullen Blog, Competition, Dr. John Mullen, Latest&Greatest, Training Leave a Comment

Resistance training is a common mode in dry-land to enhance out of water strength. Despite the lack of correlation between out of water strength and in water strength, many programs have found anecdotal success with resistance training. This is likely due to poor methods correlating in water strength and poor resistance training programs. Moreover, most studies comparing resistance training have …

Friday Interview: Jernej Kapus Discusses Breathing

Friday Interview: Jernej Kapus Discusses Breathing

Dr. GJohn Mullen Blog, Competition, Training 1 Comment

1. Please introduce yourself to the readers (how you started in the profession, education, credentials, experience, etc.). I am coming from Ljubljana, Slovenia. I’m an Assistant Professor at the University of Ljubljana, Faculty of Sport. I spent most of my childhood in competitive swimming. My swimming career was ended during the third year of study at the University of Ljubljana, …

Core Stability Improves Throwing Velocity

Core Stability Improves Throwing Velocity

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Core stability and strength are thought to improve performance in various sports. In handball, the thrower is believed to use their core during maximal throwing performances. This study looked at the results of core training on throwing velocity performance. What was done Twenty-four female high-school handball players (16.6 years) were divided into a sling exercise training (ST) or a control …

Future of Swimming Training

Future of Swimming Training

Dr. GJohn Mullen Blog, Competition, Latest&Greatest, Training 1 Comment

Smart technology is on the verge of dramatically enhancing swimming performance, be ready for the revolution. Swimming is one of the most biomechanically difficult sports. Unlike other sports, swimming works against water while in a horizontal position. The unfamiliar horizontal position makes all stroke corrections more difficult. Water also creates resistance during any motion, making improvements harder! This motion creates …

Friday Interview: Carlos Marco Rider Discusses Kuai and Swimming Technology

Friday Interview: Carlos Marco Rider Discusses Kuai and Swimming Technology

Dr. GJohn Mullen Blog, Competition, Latest&Greatest, Training Leave a Comment

1. Please introduce yourself to the readers (how you started in the profession, education, credentials, experience, etc.). I am the co-founder and CEO of Kuaiwear, and I am an experienced marathoner, triathlete, Ironman, master diver, and rescue diver. I earned an international business and international marketing degree from the University of Gloucestershire and have worked extensively to develop new, exciting …

Friday Interview: Arm Strength and Height Predicts Youth Swimming Performance?

Friday Interview: Arm Strength and Height Predicts Youth Swimming Performance?

Dr. GJohn Mullen Blog, Competition, Latest&Greatest Leave a Comment

1. Please introduce yourself to the readers (how you started in the profession, education, credentials, experience, etc.).  My name is Kristen Cochrane and I received a Bachelor’s degree in Cognitive Sciences from the University of California, Irvine in 2008 and a Master’s degree in Exercise Physiology from California State University, Fullerton in 2012. I am a member of the American College of …

Effects of Barbell Deadlift Training on Submaximal Motor Unit Recruitment for the Quadriceps

Effects of Barbell Deadlift Training on Submaximal Motor Unit Recruitment for the Quadriceps

Dr. GJohn Mullen Biomechanics, Blog, Competition, Dryland, Training 4 Comments

Background on the Barbell Deadlift Dryland Training has become a quintessential aspect of swimming. Not only does dryland provide the opportunity for athletes to become stronger but it also provides an avenue for the body to create improved physiological adaptations resulting in more functional strength and faster times in the water.   The barbell deadlift is an exercise that requires …