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Abstract
Objective
To determine whether a motion control running shoe reduces tibial rotation in the transverse plane during treadmill running.
Design
An experimental study measuring tibial rotation in volunteer participants using a repeated measures design.
Setting
Human Movement Laboratory, School of Health Professions, University of Brighton.
Participants
Twenty-four healthy participants were tested. The group comprised males and females with size 6, 7, 9 and 11 feet. The age range for participants was 19 to 31 years.
Main outcome measures
The total range of proximal tibial rotation was measured using the Codamotion 3-D Movement Analysis System.
Results
A one-tailed paired t-test indicated a statistically significant decrease in the total range of proximal tibial rotation when a motion control shoe was worn (mean difference 1.38°, 95% confidence interval 0.03 to 2.73, P=0.04).
Conclusions
There is a difference in tibial rotation in the transverse plane between a motion control running shoe and a neutral running shoe. The results from this study have implications for the use of supportive running shoes as a form of injury prevention
Re: Effect of motion control running shoes compared with neutral shoes on tibial rotation during running
Quote:
A one-tailed paired t-test indicated a statistically significant decrease in the total range of proximal tibial rotation when a motion control shoe was worn (mean difference 1.38°, 95% confidence interval 0.03 to 2.73, P=0.04).
But is 1.38 degrees clinically significant???
__________________
Craig Tanner
Podiatrist ASPETAR-
Qatar Orthopaedic and Sports Medicine Hospital
Doha
QATAR http://www.aspetar.com/
Abstract
Objective
To determine whether a motion control running shoe reduces tibial rotation in the transverse plane during treadmill running.
Design
An experimental study measuring tibial rotation in volunteer participants using a repeated measures design.
Setting
Human Movement Laboratory, School of Health Professions, University of Brighton.
Participants
Twenty-four healthy participants were tested. The group comprised males and females with size 6, 7, 9 and 11 feet. The age range for participants was 19 to 31 years.
Main outcome measures
The total range of proximal tibial rotation was measured using the Codamotion 3-D Movement Analysis System.
Results
A one-tailed paired t-test indicated a statistically significant decrease in the total range of proximal tibial rotation when a motion control shoe was worn (mean difference 1.38°, 95% confidence interval 0.03 to 2.73, P=0.04).
Conclusions
There is a difference in tibial rotation in the transverse plane between a motion control running shoe and a neutral running shoe. The results from this study have implications for the use of supportive running shoes as a form of injury prevention
anyone know of any studies which link increased Transverse plane motion of the tibia to injury ?
Seems a rather large sweeping statement to me.
Quote:
Transverse-plane mechanics at the knee and tibia in runners with and without a history of achilles tendonopathy.
Williams DS, Zambardino JA, Banning VA.
Source
Department of Physical Therapy, East Carolina University, Greenville, NC 27858, USA. williamsdor@ecu.edu
Abstract
STUDY DESIGN:
Retrospective cohort study.
OBJECTIVES:
To determine if runners with a history of Achilles tendonopathy (AT) demonstrate a difference in transverse-plane motion and moments at the distal tibia and knee compared to runners without a history of AT.
BACKGROUND:
One of the more prevalent overuse running injuries is AT. It has been hypothesized that prolonged pronation causes contradictory rotational forces acting on the AT. Conflicting joint motions may also accentuate the rotation of the tendon. This may further affect the opposing transverse-plane moments at the knee and distal tibia.
METHODS AND MEASURES:
Eight runners with a history of AT and a noninjured control group consisting of 8 runners ran along a 20-m runway at a fixed speed. Biomechanical measurements were taken using a 6-camera motion analysis system and a force plate. Student t tests were employed to determine statistically significant differences (P </= .05) in transverse-plane motion and moment variables at the distal tibia and knee between groups.
RESULTS:
The AT group showed less tibial external rotation moment (P = .01) and peak knee internal rotation (P = .05) compared to the control group. There was no difference in external rotation moment at the knee (P = .34) or peak tibial internal rotation (P = .44).
CONCLUSION:
Runners with a previous history of AT exhibited less tibial external rotation moments during running. The lack of control in the transverse-plane at the distal tibia may be due to decreased function of the muscles primarily responsible for transverse-plane motion, resulting in greater strain on the AT in the transverse-plane. Designing an exercise program to strengthen lower leg muscles and improve distal tibial control in the transverse-plane may reduce the risk for developing AT or augment the rehabilitation of AT.
This one show a group with history of TA pain having less external rotation moments but internal the same as a control group
Re: Effect of motion control running shoes compared with neutral shoes on tibial rotation during running
Tibial rotation is linked with STJ pronation and abduction of the forefoot on the rearfoot. I don't care so much about the total amount of motion as compared to the acceleration of motion. If a motion control shoe shifted the center of pressure more medially, there would be a smaller pronation moment from the ground and you would expect a slower pronation acceleration during the contact phase. These results could be evidence for a decrease in pronation moment from the ground. A further study would be to look at internal leg rotation velocities in posterior tibial dysfunction with and without motion control shoes.
Effect of motion control running shoes compared with neutral shoes on tibial rotation during running
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