Matt green

Field Based Conditioning for the Hip & Groin

Matthew Green

The Plan

Part 1:

Demands of the Game

Demands of Training

Implications for Hip & Groin

Part 2:

Field Based Conditioning

Load Management & Monitoring

Demands of the Game

2006/07 vs 2012/13

50% Sprint Distance

24-36% High Intensity Running Distance

125-171% Explosive Sprints

Do Sprints Tell the Whole Story?

Short accelerations, which do not reach speeds necessary to qualify as sprints are more important in game-specific situations

8 x Change of direction per minute

(Bloomfield et al., 2007)

3 x more high acc than sprints (>2.5m/s)

(Bradley et al., 2009)

8 x more max acc than sprints (>2.78m/s)

(Varley & Aughey, 2013)

Training Content

Technical Tactical Training games Competitive match play Physical

(Green et al., 2013)

30%

11% 10%

33%

17%

Demands of Training

Acceleration, deceleration and change of direction demands

Max speed and repeated speed bouts

What do these demands mean for the hip & groin?

Number of hip & groin injuries

140

105

70

35

0 01/02

02/03

03/04

04/05

05/06

06/07

07/08

The increase in the number and proportion of sprints in match-play has been proposed as one causative factor for increased injury rates, in particular groin and hamstring strains (Ekstrand, Hägglund, & WaldÊn, 2011)

What are the risk factors that we can effect on the field?

Higher level of play

Decreased hip abduction ROM and total hip rotation ROM

Reduced hip adductor/ abductor strength

Lower levels of sportspecific training

Mismanagement of training volume & intensity

Field Based Strategy Musculoskeletal tolerance to stress

Load Management & Monitoring

A 'warm up' should do more than it says on the tin!

“One part of my job I’ll never learn to love is the warm-up. I hate it with every fibre of my being. It actually disgusts me. It’s nothing but masterbation for the conditioning coaches.’’

Mobility

MD+2 Stability

MD-4

Mechanics

MD-2

Reactive

MD-1

MD-3

PreActivation

Reactions

Power

Mixed

MD Speed

Strength

Extensive

Linear Capacity

Intensive

RSA

Mobility

Group Dependent

Ex. SEM

Field Based

Football Session

RSA

S&C

Top Up

Matchday

Ex. SEM

MD+1

MD+2

MD-4

MD-2

MD-1

Load Management & Monitoring

HR, PL & derivatives, CoD

PL & derivatives, CoD, #acc/ dec, #shots, #passes, #tackles

TD, HID, #sprints, max velocity/ acc/ dec, HR

Training Session Design

Pitch size =

Pitch size =

Player number =

MSK Stress:

Locomotive:

Time > 85% TRIMP Av HR

CV:

PL & derivatives Acc/ dec

TD HID Sprint D

Acute: Chronic Workload

‘Its not the load, its how you get there’

Headlines Physical demands especially in short explosive acc & change of directions Hip & groin vulnerability Utilise warm up to increase mobility, capacity & CoD efficiency Football session design can have large implications Monitoring is key to avoiding the overload injury

Thank you

matt.green@wbafc.co.uk

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Serner, A., Tol, J. L., Jomaah, N., Weir, A., Whiteley, R., Thorborg, K., Robinson, M. & Hölmich, P. (2015). Diagnosis of Acute Groin Injuries: A Prospective Study of 110 Athletes. The American Journal of Sports Medicine, 43 (8), 1857-1864

Varley, M. C., & Aughey, R. J. (2013). Acceleration profiles in elite Australian soccer. International Journal of Sports Medicine, 34, 34–39

Whittaker, J. L., Small, C., Maffey, L. & Emery, C. A. (2015). Risk factors for groin injury in sport: an updated systematic review. British Journal of Sports Medicine, 49, 803–809