Do age and body size affect the eccentric knee flexor strength measured during the Nordic hamstring exercise in male soccer players?

Capaverde, Vinícius de Borba; Oliveira, Gabriel dos Santos; Lima-E-Silva, Felipe Xavier de; Ribeiro-Alvares, João Breno; Baroni, Bruno Manfredini

doi:10.1080/14763141.2021.2003850

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…The effects generated by the application of a Nordic training protocol are not affected by age according to Capaverde, et al [41] who refers to the applicability of this training type in adolescents until adulthood, without significant differences (p= 0.12), coinciding with this research, an average age of 18 years was established, with a minimum age of 16 and a maximum age of 28 years, so that it can be applicable in various age groups.…”

Section: Discussionsupporting

confidence: 61%

“…There is little literature regarding the influence of Nordic exercises on absolute strength. It is worth mentioning that the creation of new devices that help in data collection and adaptation to the application of this training protocol is also being studied, [6] In fact, two of the articles consulted evaluate healthy athletes, through dynamometry expressed in newtons; The average values of the studies fluctuated between 180 to 300 newtons (nw) represented in kg from 18 to 30 approximately as initial values, lacking significant differences between before and after the intervention; [41,42] These data are superior to those found in the athletes evaluated, since they had average values between 12kg or 118(nw) on the dominant side, without a significant difference between before and after in the control group (p=>0.05). , and 14.5 (kg) or 143 (nw) with a significant difference in the experimental group (p=<0.05).…”

Section: Discussionmentioning

confidence: 99%

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Nordic Exercise Effects on the Explosive and Absolute Strength of Lower Limbs in Different Sports Modalities

Potosí-Moya,

Paredes-Gómez,

Calero-Morales

2024

Preprint

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Nordic exercises aim to improve physical abilities and prevent injuries; However, it is not clear in what type of sports modalities to use it, so this study arises from the interest of ana-lyzing its effect in different sports modalities. Objective: To analyze Nordic exercises effects on the lower limbs, and their relationship with the explosive and absolute strength inherent to demands of different sports modalities (football, athletics, basketball, sport climbing, cycling and taekwondo). Method: quasi-experimental research, identifying 122 athletes (18±3 years old) from: football (n=24), athletics/speed (n=20), sport climbing (n=20), basketball (n=24), taekwondo (n=14) and cycling (n=20); classified into a control group CG (n=57) and an experimental group EG (n=65). Results: dominant absolute strength of the initial (12.4±0.51) and final (14.5±0.98) EG, in greater proportion in basketball (P= < 0.05); explosive strength of the initial (42.4±1.2) and final (45.8±1.5) EG, with a significant difference in all modalities between before and after (p≤0.05), except in cy-cling and taekwondo; no major changes were found in the GC. Conclusion: Nordic exercises are recommended as part of training to improve levels of explosive strength with emphasis on the modalities of football, basketball, athletics/speed and sport climbing, being applicable to increase absolute strength in basketball.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 99%

Nordic Exercise Effects on the Explosive and Absolute Strength of Lower Limbs in Different Sports Modalities

Potosí-Moya,

Paredes-Gómez,

Calero-Morales

2024

Preprint

View full text Add to dashboard Cite

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“…11,12 However, and despite the soundness of kinematic measurements, studies showed only moderate estimates of correlation considering the BPA and the isokinetic eccentric peak torques at 30°/s (r = .58, r 2 = .34) and relevant bias that increases as the angle increases. 13,14 Other anthropometric factors such as weight, height, and the lever arm might act as covariates on the biomechanical analysis, 15 improving the model to predict the relative eccentric force (RelF). Nevertheless, to our knowledge, no study has considered a prediction model including the kinematic variables and the influence of other intrinsic covariates (such as age and anthropometry) to set the RelF while the Nordic curl is performed.…”

mentioning

confidence: 99%

Does an Adjusted Kinematic Model Predict the Relative Eccentric Force During Nordic Curl?

Rocha

Macedo

Batista

et al. 2023

Journal of Sport Rehabilitation

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This study aimed to assess the combination of video-based kinematic variables adjusted by intrinsic covariates to predict the relative eccentric force (RelF) during the Nordic curl. The participants (n = 21) performed Nordic curls (3 trials; 3-min rest) on a device measuring the eccentric force. The peaks were normalized by body weight. Kinovea software was used to track angular and linear velocity and acceleration from recorded videos. Two prediction models with multiple linear regression equations associated kinematic, anthropometric, and age variables to adjust the actual RelF. The equations obtained the predicted RelF. The actual RelF was inversely correlated with height (r = −.52), tangential (r = −.50) and centripetal accelerations (r = −.715), and angular velocity (r = −.70). The best prediction models combined angular velocity with age (F2,18 = 15.1, P = .001, r = .792, r2 = .627) and with height (F2,18 = 14.5, P = .001, r = .785, r2 = .616). No differences were observed between actual and predicted values (P = .993−.994), with good levels of agreement and consistency (intraclass correlation coefficient = .77−.78; Cronbach α = .86−.87). Bland–Altman results showed high levels of agreement and low biases. The standard error of measurement and minimal detectable change ranges were 0.46 to 0.49 N/kg and 1.28 to 1.36 N/kg, respectively. Also, the percentage of standard error of measurement was below 10% (7.92%–8.35%). The coefficient of variation analysis returned a 14.54% and 15.13% for each model, respectively. Kinematic analysis offers portability and low cost to current expensive or technical impaired dynamometry-based techniques to assess the RelF.

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Assessing the Single Leg Bridge Test performance among women’s soccer professional athletes

Rolim,

Secchi,

dos Santos

et al. 2024

Sport Sci Health

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Do age and body size affect the eccentric knee flexor strength measured during the Nordic hamstring exercise in male soccer players?

Cited by 4 publications

References 35 publications

Nordic Exercise Effects on the Explosive and Absolute Strength of Lower Limbs in Different Sports Modalities

Nordic Exercise Effects on the Explosive and Absolute Strength of Lower Limbs in Different Sports Modalities

Does an Adjusted Kinematic Model Predict the Relative Eccentric Force During Nordic Curl?

Assessing the Single Leg Bridge Test performance among women’s soccer professional athletes

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