Hartpury University Repository

Holt, Susan

Riley, Isabell

English

Canine Immune Mediated Thrombocytopenia

Rennard, Jane

Greening, Linda

Williams, Jane

In praise of dead pets: an investigation into the content and function of human-style pet eulogies

C, Carrasco-Huenulef

Moran, Jason

Effects of a neuromuscular training program on anterior cruciate ligament injury risk factors in youth female basketball players: a pilot study

Choe, Jae

Encyclopedia of animal behavior. Part 1

Lesniak, Kirsty

Whittington, Lisa

Mapletoft, Stephanie

Mitchell, Jennifer

Hancox, Katie

Draper, Steve

The Influence of Body Mass and Height on Equine Hoof Conformation and Symmetry

Davies, Marianne

Developing Skill Part 1. Being Skilful

Fernandes, John

Daniels, Matthew

Myler, Liam

Twist, Craig

Influence of playing standard on upper- and lower-body strength, power and velocity characteristics of elite rugby league players

Clarke, Hannah

Drury, Ben

 BACKGROUND
Despite its benefits eccentric resistance training (e.g. Nordic hamstring exercise, NHE) has
received little attention in youth populations
Before such training practice can be used it is important to know if youths can reproduce
measures of eccentric hamstring function
METHODS
 
 
 
RESULTS
CONTACT DETAILS
John.fernandes@hartpury.ac.uk
 
@DrJFTFernandes 
THE INFLUENCE OF MATURATION ON THE
RELIABILITY OF THE NORDIC HAMSTRING
EXERCISE IN MALE YOUTH FOOTBALLERS
J O HN  F .  T  F E R NAND E S ,  J A S ON  MORAN ,  HANNAH  C L A R K E ,  B EN J AM I N  DRUR Y
 
FIGURE 1. RELIABILITY STATISTICS FOR THE NORDIC HAMSTRING EXERCISE ACROSS GROUPS
Reliability for bilateral, left, right and relative peak force for the U11s, U13s and U16s was
favourable (CV = <8.7%) and demonstrated no clear pattern between groups
Those less mature (pre-PHV) demonstrated better reliability (CV = 4.8 to 5.7%) than their mature
counterparts (mid-post PHV; CV = 7.2 to 8.5%)
Imbalances yielded poor reliability for all comparisons (CV = >30%)
 
64 male youth football players
(aged 10 to 16)
Four familiarisation sessions 
to the NHE
Three repetitions of the NHE
performed on two 
occasions with seven days rest
between trials
AIMS
 Establish the reliability of the NHE in male youth footballers
 Determine if maturation influenced the NHE reliability
1.
2.
 
CONCLUSIONS
Practitioners can be confident in measuring bilateral, left, right and relative strength across
maturation in male youth football players
Maturation affected the reliability; those less mature provided more repeatable measures
When measuring eccentric hamstring imbalances, practitioners should exercise caution 
 


The influence of maturation on the reliability of the Nordic hamstring exercise in male youth footballers

Ijichi, Carrie

Green, Sophie

Squibb, Keith

Carroll, Aisling

Bannister, Isobel

Zylkéne to Load? The effects of alpha-casozepine on compliance and coping in horses during loading.

Taylor, F.

Tabor, Gillian

Williams, J. M.

Altered thoracolumbar position during application of craniocaudal spinal mobilisation in clinically sound leisure horses

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