Power Stride™ Evaluation Results

By: Viva Athletics  09-12-2011
Keywords: skating

UNIVERSITY HEALTH SCIENCE STUDY

  The following is a summary of a study titled, An Analysis of the Effects of Use of the POWER STRIDE™ on Movement and Muscle Activation Patterns While Skating on a Treadmill by Dr. William Gage, Ph.D., Assistant Professor, School of Kinesiology and Health Science, Faculty of Health, York University.

AUTHOR'S BIOGRAPHY:

Dr. William Gage Ph.D. is an Assistant Professor in the School of Kinesiology and Health Science, in the Faculty of Health at York University, located in Toronto, Ontario, Canada.

Dr. Gage also holds appointments as Adjunct Scientist at Toronto Rehabilitation Institute, and Heart and Stroke Centre for Stroke Recovery at Sunnybrook Health Sciences Centre. Dr. Gage’s research interests include biomechanics and neuromuscular control of movement. He studies changes in postural control effects by aging and pathology, with application to both sport and aging. He has a special interest in understanding biomechanical and neuromuscular contributors to development and progression of osteoarthritis. Dr. Gage regularly publishes the findings of his research in international peer-reviewed scientific journals.

"The purpose of this study was to examine the effects of using a novel device called the

POWER STRIDE

™, to progressively load the distal aspect of the lower limb, on the patterns of movement and muscle activity while skating.

The

POWER STRIDE

™ has been developed as a training aid for hockey players, designed to increase the physiological muscular load on the skater; examination of the kinematics and muscle activity will provide insight to the potential value of such a device.

Movement pattern data (kinematics) were collected using a four-camera optoelectronic motion capture system, and a four segment model of the lower limb; muscle activity was recorded from four muscles of the lower limb; five healthy male volunteers participated in this study.

The

POWER STRIDE

™ functioned as expected, with no difficulties; researchers reported that the device was easy to understand and simple to use; the

POWER STRIDE

™ appeared to hold the weights firmly to the skate boot, without shifting during the skating movement, and at no time became loose or detached; skaters reported feeling comfortable using the

POWER STRIDE

™.

Substantial differences were observed in the eccentricity of the foot trajectory during skating, with increased distal lower limb mass; no differences were observed in kinematic profiles of joint angular displacement, with exception of hip extension which was increased slightly with added load.

Peak hip abduction angle was slightly reduced with added load, though net abduction displacement (i.e., unbiased displacement) was not altered, suggesting skaters adopted compensatory trunk postures.

Added distal lower limb mass may influence the load on hip extensors and abductors, as well as hip flexors and adductors, and the trunk stabilizers such as the abdominal musculature; these possibilities warrant further investigation, and potentially represent effective methods of providing functional

muscle strengthening about the hip, groin, and trunk musculature

during skating, with

positive implications for injury prevention

."

  Dr. William Gage Ph.D., Assistant Professor
Faculty of Health, York University

Keywords: skating

Other products and services from Viva Athletics

09-12-2011

Order our Products :: Viva Athletics

Is the most effective product for increasing skating speed, strength, agility and stability through its proper positioning and perfect balance on the leg, as well as its scalable weight system. This product is also suitable and may be worn for Speed Skating, Slalom Skiing, Cross Country Skiing, Roller Blading, Running and others. The binding is also made of a polyester Denier 600 without any backing to give its design a smooth outline.


09-12-2011

POWER STRIDE™ Description from Viva Athletics

The binding is also made of a polyester Denier 600 without any backing to give its design a smooth outline. Is made of durable polyester Denier 600, a cut resistant material with a PVC coated backing. The weights are made of steel, 1/2 lb bars and coated with a plastisol for clean look and use. It can hold up to 3 lbs per skate for a total of 6 lbs per pair. Stays on your skate and keeps the weights in their pockets.


09-12-2011

Our Products :: Viva Athletics

.the most effective product for increasing skating speed, strength, agility and stability through its proper positioning and perfect balance on the leg, as well as its scalable weight system.