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 …

Posterior Capsule Tightness

Posterior Capsule Tightness

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

Posterior shoulder tightness is common in patients with shoulder injuries. The shoulders are the most commonly injured site in swimmers, suggesting swimmers have tight posterior shoulders. It is believed the posterior capsule is responsible for the tightness in the posterior shoulder, leading to the glenohumeral internal rotational deficit (GIRD) and type 2 superior labrum anterior and posterior (SLAP) lesions, the …

Resistance Exercise Load Does Not Determine Muscle Size

Resistance Exercise Load Does Not Determine Muscle Size

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

It is commonly thought the more weight one lifts during resistance training, the greater increase in muscle size (hypertrophy) occurs. Unfortunately, there is minimal evidence suggesting these two conditions correlate. Moreover, the size of a muscle is not suggested to correlate with swimming success. Instead of a percent of maximum, the total volume of weight lifted is potentially a means …

Friday Interview: Dr. Mitch Lomax on Inspiratory Muscle Fatigue (IMF) in Swimming

Friday Interview: Dr. Mitch Lomax on Inspiratory Muscle Fatigue (IMF) in Swimming

Dr. GJohn Mullen Blog, Dr. John Mullen, Latest&Greatest, Training 2 Comments

1. Please introduce yourself to the readers (how you started in the profession, education, credentials, expertise, etc)  I’m a Sport and Exercise Scientist and a Senior Lecturer in Sport and Exercise Physiology at the University of Portsmouth, UK. I gained both my PhD (2007) and MSc (with distinction, 2001) from Brunel University, UK, and my BSc (Hon) from Luton University …

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 …

Neuromuscular Response to Pain and Exercise Induced Muscle Damage

Neuromuscular Response to Pain and Exercise Induced Muscle Damage

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

Muscle soreness and pain are common sensations following a bout of unfamiliar exercise. This is believed secondary to lengthening and damage of the muscle fibers resulting in inflammation. Moreover, this damage results in changes in neuromuscular function and force production. Surprisingly, this decrease in force is not seen until 12 hours following exercise, perhaps due to pain not occurring until …

Do I Have Core Strength?

Do I Have Core Swimming Strength?

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

TAKE HOME POINTS FOR CORE STRENGTH IN SWIMMERS Core strength is plane dependent. Core strength is activity dependent. Core strength can vary with training volume, load, etc. I’ve received a lot of emails recently regarding core strength, specifically how to test for core strength and tell if someone has enough “core strength for swimming”. Now, there are numerous methods for testing …

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

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

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 …

Dynamic Core Strength Correlated with Ground-Based Performance

Dynamic Core Strength Correlated with Ground-Based Performance

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

Though many feel core strength is essential for athletes, measuring this strength is not well understood. This study attempted to analyze the impact of dynamic core strength on performance and find a measurable field test. What was done Twenty-five Division I collegiate football (~19.0 years) players performed medicine ball throws (forward, reverse, right, and left) in static and dynamic positions. …