Publish in this journal
Journal Information
Vol. 55. Issue 207.
Pages 89-95 (July - September 2020)
Share
Share
Download PDF
More article options
ePub
Vol. 55. Issue 207.
Pages 89-95 (July - September 2020)
Original Article
DOI: 10.1016/j.apunsm.2020.05.003
Lower limb flexibility characteristics in youth athletics. Differences among events and age groups in highly trained adolescent athletes
Visits
...
Daniel Martínez-Silvána,
Corresponding author
dmsilvan@hotmail.com

Corresponding author.
, Amanda Johnsonb
a National Sports Medicine Program-Aspire Academy Sports Medicine Center, Aspetar Orthopedic and Sports Medicine Hospital, Doha, Qatar
b University of Birmingham, Birmingham, UK
Article information
Abstract
Full Text
Bibliography
Download PDF
Statistics
Figures (2)
Tables (4)
Table 1. Number of tests analyzed by date. *=test not done.
Table 2. Mean values (±STD) for right and left for each muscle group. A single value averaging L and R is showed with (±STD). QUAD: quadriceps; HAMS: hamstrings; ADD: adductors; GAST: gastrocnemius; SOL: soleus; HIPFLEX: hip flexors; INTROT: hip internar rotators; EXTROT: hip external rotators.
Table 3. Mean values by age groups and muscle group, including total flexibility (±STD). *Statistical significance set at p<0.05. QUAD: quadriceps; HAMS: hamstrings; ADD: adductors; GAST: gastrocnemius; SOL: soleus; HIPFLEX: hip flexors; INTROT: hip internar rotators; EXTROT: hip external rotators.
Table 4. Mean values per athletics event for each muscle group and total flexibility. QUAD: quadriceps; HAMS: hamstrings; ADD: adductors; GAST: gastrocnemius; SOL: soleus; HIPFLEX: hip flexors; INTROT: hip internar rotators; EXTROT: hip external rotators.
Show moreShow less
Abstract
Introduction

Age and sport specialization are two of the most important factors that can impact an athlete's flexibility, but their influence during adolescence in youth athletics hasn’t yet been investigated.

Material and methods

Retrospective analysis of the lower limb flexibility assessments in the athletics squad of a full-time sports academy in the Middle East for nine consecutive seasons (2006/07 to 2014/15). Flexibility data were analyzed for eight lower limb muscle groups (mean value±standard deviation) in four athletics events (throws, sprints & jumps, distance running and non-specialized) and seven age groups (categorized yearly from under 13 to above 18 years old). Total lower limb flexibility (TF) was calculated by summating all individual muscle group values and comparisons were made between age groups and athletics events with statistical significance set at p<0.05.

Results

127 adolescent athletes (age=15.4±1.8 years) completed, in total, 604 flexibility tests. No statistically significant differences between right and left were found for any muscle (p>0.05). A weak inverse correlation (r=−0.21, p<0.001) was found between age and TF, with no significant changes in hamstrings, adductors and hip flexors (p>0.05). Throwers were found to be significantly less flexible (1091±93) than distance runners (1227±95), sprints & jumps (1186±80) and non-specialized athletes (1178±78); distance runners displayed greater hip external rotators flexibility than any other group (p<0.01), and up to 78% more than throwers.

Conclusions

This research confirmed that throwers were the least flexible of all events in youth athletics. Overall lower limb flexibility appears to decrease during adolescence, although hamstrings, adductors and hip flexors remained unchanged.

Keywords:
Range of motion
Track and field
Youth

Article

These are the options to access the full texts of the publication Apunts Sports Medicine
Subscriber
Subscriber

If you already have your login data, please click here .

If you have forgotten your password you can you can recover it by clicking here and selecting the option “I have forgotten my password”
Subscribe
Subscribe to

Apunts Sports Medicine

Comprar
Comprar acceso al artículo

Comprando el artículo el PDF del mismo podrá ser descargado

Precio 19,34 €

Comprar ahora
Contact
Phone for subscriptions and reporting of errors
From Monday to Friday from 9 a.m. to 6 p.m. (GMT + 1) except for the months of July and August which will be from 9 a.m. to 3 p.m.
Calls from Spain
932 415 960
Calls from outside Spain
+34 932 415 960
Email
Apunts Sports Medicine

Subscribe to our newsletter

Article options
Tools

Are you a health professional able to prescribe or dispense drugs?