3 Reasons to Fix Swimmers Posture

3 Reasons to Fix Swimmers Posture

Dr. GJohn Mullen Allan Phillips, Biomechanics, Blog, Injuries Leave a Comment

1) Swimmers posture can heighten injury risk2) Stroke mechanics may be implicated by swimmers posture3) Swimmers posture can affect both land and water strength We all know what swimmers posture looks like but how can we actually describe it? Characteristics include forward head, rounded upper spine (kyphosis), elevated and protracted scapulae, anteriorly positioned humeral head, highly developed upper trapezius, and …

Friday Interview: Dr. Wymore on Healthy Swimmers More Dysfunctional Than Injured Baseball Players: Swim Shoulder Pain

Friday Interview: Dr. Wymore on Healthy Swimmers More Dysfunctional Than Injured Baseball Players: Swim Shoulder Pain

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

This is an interview with Dr. Lucas Wymore. Dr. Wymore recently published: Shoulder Functional Performance Status of National Collegiate Athletic Association Swimmers: Baseline Kerlan-Jobe Orthopedic Clinic Scores. This interview discusses this research article, but don’t forget to look at Dr. Wymore’s other study: No correlation between stroke specialty and rate of shoulder pain in NCAA men swimmers. For more on Swimmer’s Shoulder checkout Swimmer’s Shoulder …

7 Ways to Reduce Swimming Low Back Pain

7 Ways to Reduce Swimming Low Back Pain

Dr. GJohn Mullen Biomechanics, Blog, Competition, Dr. John Mullen, Injuries, Training Leave a Comment

The shoulder is the primary site of injury in swimmers, but the low back is the second most commonly injured site. In fact, ~8% of those competing at a 2001 International competition experienced low back pain. Kaneoka (2007) noted thirty-eight (68%) elite swimmers and 11 (29%) controls had degenerated discs at various levels. Disc level L5-S1 was more frequently degenerated …

How Repeated Stretches Affect Muscle Viscoelasticity

How Repeated Stretches Affect Muscle Viscoelasticity

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

Viscoelasticity is the ability to return of a material to return to a position after an extended force application. Dynamic tissues (muscles, tendons, ligaments) possess viscoelastic structures. The ideal mechanism and benefits of stretching are uncertain, but previous work suggests constant-torque is more beneficial than constant-angle for improving muscle creep, resulting in a decrease in stiffness. This creep is the …

Kinematics of the Thoracic Spine in Trunk Rotation

Kinematics of the Thoracic Spine in Trunk Rotation

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

Thoracic spine rotation is used in long-axis swimming. Therefore, understanding the biomechanical demand of this motion is mandatory to understand the optimal hydrodynamics. Unfortunately, the thoracic spine is rarely researched due to the low volume of injuries at this region. Simply comparing the thoracic spine to other areas is unjust, as the thoracic spine has many differences from the rest …

Motor Learning for Swimmers: Part I

Motor Learning for Swimmers: Part I

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

Take Home Points on Motor Learning for Swimmers: Part I Learn the motor learning terminology for the best swimming practice. Motor learning for swimmers is an expanding form of training. This is most popularized by Dr. Rushall’s work and his Swimming Science Bulletin: SWIMMING ENERGY TRAINING IN THE 21ST CENTURY: THE JUSTIFICATION FOR RADICAL CHANGES. If you have not read this document, …

Friday Interview: Stefan Szczepan Ph.D. Discusses Immediate Feedback in Swimmers

Friday Interview: Stefan Szczepan Ph.D. Discusses Immediate Feedback in Swimmers

Dr. GJohn Mullen Biomechanics, Blog, Latest&Greatest, Training 3 Comments

1. Please introduce yourself to the readers (how you started in the profession, education, credentials, experience, etc.). Hi, my name is Stefan Szczepan. I’m a scientist at the University School of Physical Education in Wroclaw, Poland and I work at the Department of Swimming. This year I received a doctoral degree. I’m interested in motor control and learning included motor …

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 5 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 …

Rotational Power Test

Rotational Power Test

Dr. GJohn Mullen Biomechanics, Blog, Competition, Training 1 Comment

Core muscular endurance is a variable associated with low back pain rehabilitation. Core training is believed to improve ground sports performance but has not been confirmed in swimming. Rotational power is deemed an important variable in rotational power athletes. The correlation between rotational power and swimming success has yet to be proven, but many dry-land programs strive for improved rotational …

VO2 Kinetics on Heavy Swimming

VO2 Kinetics on Heavy Swimming

Dr. GJohn Mullen Biomechanics, Blog, Competition, Training Leave a Comment

The intensity of exercise prescribed during a workout is typically defined based on the pulmonary oxygen uptake and blood lactate response to constant work. This is easily researched in running and cycling but is difficult in swimming. Therefore, many coaches prescribe intensity based on experience. A slow component of the VO2 kinetics is superimposed upon the rapid response, resulting in …