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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_13 | Pages 70 - 70
1 Mar 2013
Massa E Smitham P McCarthy I Weiler R Evans M Rolls A
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Football player's performance during competitive matches greatly depends on fitness and training. The use of GPS (Global Positioning System) has been revolutionary in the monitoring of player intensity during training. The aim of the study was to investigate the difference in training intensity between defenders, midfielders and forwards and if injury sustained was directly related to the intensity of training. GPS (Catapult Minimax GPS 10Hz) was used to collect training data for a professional British football club playing in the Championship, for the year August 2011/April 2012. Each player wore a GPS unit during each training session and the raw data was logged. The GPS calculates the player load which is a measure of intensity of training. It is a summation of instantaneous change of forward, sideway and upward accelerations. Adjustments are made for match days and injuries according to a defined set of rules. A total player load was obtained for each month and at the end of the season. The different injuries sustained throughout the year were logged for each player. This study shows that there is a difference between the intensity of training in different groups of players. The midfielders trained at the highest intensity and, in this group of professional football players, defenders sustained the most injuries GPS technology allows monitoring of player intensity during training. The data obtained will guide training and fitness coaches model training for the individual group of players. This will prepare players for official matches and eventually may help predict and prevent injuries.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVI | Pages 115 - 115
1 Aug 2012
Papadosifos N Boampong D Weiler R Smitham P Tyler N Holloway C Grange S
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Introduction

In the US over half a million people are prescribed crutches each year. More than 750,000 wheelchair users exist in the UK and wheelchair and crutch users commonly develop shoulder pathology. The purpose of this study was to determine the influence of complex topographies on heart rate (HR) and thus energy expenditure, using a wheelchair and differing crutch designs on the exertional body stress.

Method

Two Paralympics Athletes from the GB amputee football squad were assessed in a Lomax Active wheelchair and 5 different types of crutches in a randomly allocated order over a course representing everyday complex terrains at the Pedestrian Accessibility and Movement Environment Laboratory (PAMELA), University College London. In addition results were compared over the same course with the athletes using their own personal pair of crutches. The PAMELA course consisted of a mixture of 4% and 2.5% cross falls (transverse) and a simulated road crossing, sprint, slalom and a slow straight.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVI | Pages 63 - 63
1 Aug 2012
Rudge W Weiler R Smitham P Holloway C Papadosifos N Maswania J Grange S
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Introduction

Modern forearm crutches have evolved little since their invention last century. We evaluated comfort and user satisfaction of 2 spring-loaded crutches compared with existing crutch designs.

Methods

25 healthy subjects (11 male, average age 26.2 years; 14 female, average age 22.7 years) participated. Each used 5 different crutches in a randomly allocated order:

standard forearm crutch (ergonomic grip);

spring-loaded crutch (soft spring, ergonomic grip);

spring-loaded crutch (firm spring, ergonomic grip);

standard forearm crutch (normal grip);

axillary crutch.

Participants completed a purpose built course at the Pedestrian Accessibility and Movement LAboratory, UCL (PAMELA). The course consisted of a mixture of slopes (transverse and longitudinal), sprint, slalom, and a slow straight. All participants completed questionnaires relating to crutch user preference and design features.