Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels
Abstract
Background: Isokinetic testing has been routinely used to assess the capacities of individual muscle groups. In this study we aimed to evaluate the sensitivity of the force-point (F-v) relationship assessed through the two-point method to discriminate between antagonist muscle groups and males with different physical activity levels. Methods: The concentric force output of the knee, hip, elbow, and shoulder flexors and extensors of 27 active and 13 non-active men was recorded at 60 and 180 degrees/s to determine the F-v relationship parameters (maximum force [F-0], maximum velocity [v(0)], and maximum power [P-max]). Results: F-0 and P-max were higher for knee extensors (effect size [ES] = 1.97 and 0.57, respectively), hip extensors (ES = 2.52 and 0.77, respectively), and shoulder flexors (ES = 1.67 and 0.83, respectively) compared to their antagonist muscles, while v(0) was higher for knee flexors compared to knee extensors (ES = 0.59). Active males revealed higher F-0 for knee extens...ors (ES = 0.72) and knee flexors (ES = 0.83) and higher P-max for knee flexors (ES = 0.70), elbow extensors (ES = 0.83) and shoulder extensors (ES = 0.36). Conclusions: The sensitivity of the two-point method for testing the maximal mechanical capacities was high for the knee, moderate for the hip and shoulder, and low for the elbow joint.
Keywords:
flexors / extensors / knee / hip / elbow / shoulderSource:
International Journal of Environmental Research & Public Health, 2020, 17, 22, 1-12Publisher:
- MDPI, Basel
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200015 (University of Belgrade, Institute for Medical Research) (RS-200015)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200021 (Institute of Contemporary History, Belgrade) (RS-200021)
DOI: 10.3390/ijerph17228570
ISSN: 1660-4601
PubMed: 33227905
WoS: 000594092400001
Scopus: 2-s2.0-85096223887
Collections
Institution/Community
Institut za medicinska istraživanjaTY - JOUR AU - Janićijević, Danica AU - Knežević, Olivera AU - Garcia-Ramos, Amador AU - Cvetić, Danilo AU - Mirkov, Dragan M. PY - 2020 UR - http://rimi.imi.bg.ac.rs/handle/123456789/1013 AB - Background: Isokinetic testing has been routinely used to assess the capacities of individual muscle groups. In this study we aimed to evaluate the sensitivity of the force-point (F-v) relationship assessed through the two-point method to discriminate between antagonist muscle groups and males with different physical activity levels. Methods: The concentric force output of the knee, hip, elbow, and shoulder flexors and extensors of 27 active and 13 non-active men was recorded at 60 and 180 degrees/s to determine the F-v relationship parameters (maximum force [F-0], maximum velocity [v(0)], and maximum power [P-max]). Results: F-0 and P-max were higher for knee extensors (effect size [ES] = 1.97 and 0.57, respectively), hip extensors (ES = 2.52 and 0.77, respectively), and shoulder flexors (ES = 1.67 and 0.83, respectively) compared to their antagonist muscles, while v(0) was higher for knee flexors compared to knee extensors (ES = 0.59). Active males revealed higher F-0 for knee extensors (ES = 0.72) and knee flexors (ES = 0.83) and higher P-max for knee flexors (ES = 0.70), elbow extensors (ES = 0.83) and shoulder extensors (ES = 0.36). Conclusions: The sensitivity of the two-point method for testing the maximal mechanical capacities was high for the knee, moderate for the hip and shoulder, and low for the elbow joint. PB - MDPI, Basel T2 - International Journal of Environmental Research & Public Health T1 - Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels EP - 12 IS - 22 SP - 1 VL - 17 DO - 10.3390/ijerph17228570 ER -
@article{ author = "Janićijević, Danica and Knežević, Olivera and Garcia-Ramos, Amador and Cvetić, Danilo and Mirkov, Dragan M.", year = "2020", abstract = "Background: Isokinetic testing has been routinely used to assess the capacities of individual muscle groups. In this study we aimed to evaluate the sensitivity of the force-point (F-v) relationship assessed through the two-point method to discriminate between antagonist muscle groups and males with different physical activity levels. Methods: The concentric force output of the knee, hip, elbow, and shoulder flexors and extensors of 27 active and 13 non-active men was recorded at 60 and 180 degrees/s to determine the F-v relationship parameters (maximum force [F-0], maximum velocity [v(0)], and maximum power [P-max]). Results: F-0 and P-max were higher for knee extensors (effect size [ES] = 1.97 and 0.57, respectively), hip extensors (ES = 2.52 and 0.77, respectively), and shoulder flexors (ES = 1.67 and 0.83, respectively) compared to their antagonist muscles, while v(0) was higher for knee flexors compared to knee extensors (ES = 0.59). Active males revealed higher F-0 for knee extensors (ES = 0.72) and knee flexors (ES = 0.83) and higher P-max for knee flexors (ES = 0.70), elbow extensors (ES = 0.83) and shoulder extensors (ES = 0.36). Conclusions: The sensitivity of the two-point method for testing the maximal mechanical capacities was high for the knee, moderate for the hip and shoulder, and low for the elbow joint.", publisher = "MDPI, Basel", journal = "International Journal of Environmental Research & Public Health", title = "Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels", pages = "12-1", number = "22", volume = "17", doi = "10.3390/ijerph17228570" }
Janićijević, D., Knežević, O., Garcia-Ramos, A., Cvetić, D.,& Mirkov, D. M.. (2020). Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels. in International Journal of Environmental Research & Public Health MDPI, Basel., 17(22), 1-12. https://doi.org/10.3390/ijerph17228570
Janićijević D, Knežević O, Garcia-Ramos A, Cvetić D, Mirkov DM. Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels. in International Journal of Environmental Research & Public Health. 2020;17(22):1-12. doi:10.3390/ijerph17228570 .
Janićijević, Danica, Knežević, Olivera, Garcia-Ramos, Amador, Cvetić, Danilo, Mirkov, Dragan M., "Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants' Physical Activity Levels" in International Journal of Environmental Research & Public Health, 17, no. 22 (2020):1-12, https://doi.org/10.3390/ijerph17228570 . .