TY - JOUR
T1 - Age-dependent Knee Joint Isokinetic Profile in Professional Male Soccer Players
AU - Torres-Banduc, Maximiliano A.
AU - Jerez-Mayorga, Daniel
AU - Ojeda, Álvaro Huerta
AU - Bishop, Chris
AU - Ramirez-Campillo, Rodrigo
N1 - Publisher Copyright:
© 2022 The authors.
PY - 2022
Y1 - 2022
N2 - Background: The knee-joint isokinetic profile (KJIP) injury risk factor may be modulated by chronological age, however, comparative data for elite male soccer players aged 25 years and older is lacking. Objective: To describe and compare the knee-joint isokinetic profile (KJIP) according to the chronological age of professional male soccer players. Method: In a cross-sectional study design, sixty-three soccer athletes from the first Chilean soccer division (A-series) were divided into younger and older groups (age ≤ 25 years; n = 35 and age > 25 years; n = 28, respectively). In both groups the IPKJ was assessed at 60°.s-1 in concentric mode. Results: The older group had lower extensor peak torque (p < .05). The younger group showed correlations between flexors peak torque and extensors mean power (p < .001). In the older group, flexors peak torque and flexors mean power were correlated. The flexors peak torque, total work, and mean power symmetric index (SI) exhibited values > 10 % for both groups. The extensors SI showed values > 10 % for mean power, although only in the older group. Conclusion: Several differences in the KJIP were noted between professional male soccer players aged ≤ 25 years and > 25 years. Current results offer injury prevention insights, discussed in the current manuscript.
AB - Background: The knee-joint isokinetic profile (KJIP) injury risk factor may be modulated by chronological age, however, comparative data for elite male soccer players aged 25 years and older is lacking. Objective: To describe and compare the knee-joint isokinetic profile (KJIP) according to the chronological age of professional male soccer players. Method: In a cross-sectional study design, sixty-three soccer athletes from the first Chilean soccer division (A-series) were divided into younger and older groups (age ≤ 25 years; n = 35 and age > 25 years; n = 28, respectively). In both groups the IPKJ was assessed at 60°.s-1 in concentric mode. Results: The older group had lower extensor peak torque (p < .05). The younger group showed correlations between flexors peak torque and extensors mean power (p < .001). In the older group, flexors peak torque and flexors mean power were correlated. The flexors peak torque, total work, and mean power symmetric index (SI) exhibited values > 10 % for both groups. The extensors SI showed values > 10 % for mean power, although only in the older group. Conclusion: Several differences in the KJIP were noted between professional male soccer players aged ≤ 25 years and > 25 years. Current results offer injury prevention insights, discussed in the current manuscript.
KW - Athletic Performance
KW - Human
KW - Muscle Strength
KW - Musculoskeletal and Neural Physiological Phenomena
KW - Physical Conditioning
KW - Physical Fitness
KW - Team Sports
UR - http://www.scopus.com/inward/record.url?scp=85146974094&partnerID=8YFLogxK
U2 - 10.7575/aiac.ijkss.v.10n.4p.16
DO - 10.7575/aiac.ijkss.v.10n.4p.16
M3 - Article
AN - SCOPUS:85146974094
SN - 2202-946X
VL - 10
SP - 16
EP - 24
JO - International Journal of Kinesiology and Sports Science
JF - International Journal of Kinesiology and Sports Science
IS - 4
ER -