Agreement of three vs. eight isokinetic preset velocities to determine knee extensor torque- and power-velocity relationships

Lemaire, A; Ripamonti, M.; Ritz, M.; Rahmani, Abderrahmane

doi:10.3233/ies-130524

Cited by 15 publications

(16 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, these results further support the high linearity of the F–V relationship that has been described for several exercises (e.g., vertical jumps, running, cycling, bench pull, BPT, leg extension, etc.) ( Cross et al, 2018 ; García-Ramos et al, 2016 , 2018b ; Iglesias-Soler et al, 2018 ; Lemaire et al, 2014 ; Zivkovic et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

“…In this regard, it has been proposed that each subject presents an optimal balance between F 0 and V 0 capacities and, consequently, the ratio between F 0 and V 0 (i.e., F–V slope) can be used to implement individualized resistance training programs ( Morin & Samozino, 2016 ; Samozino et al, 2012 ). Due to the undeniable importance of the outcomes of the F–V relationship (i.e., F 0 , V 0 , F–V slope, and P max ), a number of studies have been conducted to refine the testing procedure of the F–V relationship in different exercises ( Alcazar et al, 2017 ; García-Ramos et al, 2017 , 2018a ; Lemaire et al, 2014 ; Pérez-Castilla et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship

Cuevas-Aburto

Ulloa-Díaz

Barboza-González

et al. 2018

PeerJ

View full text Add to dashboard Cite

BackgroundThe aim of this study was to examine whether the addition of very light loads for modeling the force–velocity (F–V) relationship during the bench press (BP) exercise can confirm its experimental linearity as well as to increase the reliability and concurrent validity of the F–V relationship parameters (maximum force (F0), maximum velocity (V0), F–V slope, and maximum power (Pmax)).MethodThe F–V relationship of 19 healthy men were determined using three different methods: (I) 6-loads free method: six loads performed during the traditional free-weight BP exercise (≈ 1–8–29–39–49–59 kg), (II) 4-loads free method: four loads performed during the traditional free-weight BP exercise (≈ 29–39–49–59 kg), and (III) 4-loads Smith method: four loads performed during the ballistic bench press throw exercise in a Smith machine (≈ 29–39–49–59 kg).ResultsThe linearity of the F–V relationship was very high and comparable for the three F–V methods (p = 0.204; median Pearson’s correlation coefficient (r) = 0.99). The three methods were ranked from the most to the least reliable as follows: 6-loads free (coefficient of variation (CV) range = 3.6–6.7%) > 4-loads Smith (CV range = 4.6–12.4%) > 4-loads free (CV range = 3.8–14.5%). The higher reliability of the 6-loads free method was especially pronounced for F–V slope (CVratio ≥ 1.85) and V0 (CVratio ≥ 1.49) parameters, while the lowest difference in reliability was observed for F0 (CVratio ≤ 1.27). The 6-loads free and 4-loads free methods showed a very high concurrent validity respect to the 4-loads Smith method for F0 and Pmax (r ≥ 0.89), a moderate validity for the F–V slope (r = 0.66–0.82), and a low validity for V0 (r ≤ 0.37).DiscussionThe routine testing of the F–V relationship of upper-body muscles through the BP exercise should include trials with very light loading conditions to enhance the reliability of the F–V relationship.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship

Cuevas-Aburto

Ulloa-Díaz

Barboza-González

et al. 2018

PeerJ

View full text Add to dashboard Cite

show abstract

“…In general, these results further support the high linearity of the F-V relationship that has been described for several exercises (e.g., vertical jumps, running, cycling, bench pull, BPT, leg extension, etc.) (Cross et al, 2018;García-Ramos et al, 2018b;García-Ramos et al, 2016;Iglesias-Soler et al, 2018;Lemaire et al, 2014;Zivkovic et al, 2017).…”

Section: Table 1] [Table 2] [Figure 2] Concurrent Validity Of the F-vmentioning

confidence: 99%

“…In this regard, it has been proposed that each subject presents an optimal balance between F 0 and V 0 capacities and, consequently, the ratio between F 0 and V 0 (i.e., F-V slope) can be used to implement individualized resistance training programs (Morin & Samozino, 2016;Samozino et al, 2012). Due to the undeniable importance of the outcomes of the F-V relationship (i.e., F 0 , V 0 , F-V slope, and P max ), a number of studies have been conducted to refine the testing procedure of the F-V relationship in different exercises (Alcazar et al, 2017;García-Ramos et al, 2017;García-Ramos et al, 2018a;Lemaire et al, 2014;Pérez-Castilla et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Peer Review #1 of "The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship (v0.1)"

Weakley¹

2018

View full text Add to dashboard Cite

Background. The aim of this study was to examine whether the addition of very light loads for modelling the force-velocity (F-V) relationship during the bench press exercise can confirm its experimental linearity as well as to increase the reliability and concurrent validity of the F-V relationship parameters (maximum force [F 0 ], maximum velocity [V 0 ], F-V slope, and maximum power [P max ]). Method. The F-V relationship of 19 healthy men were determined using three different methods: (I) 6-loads free method: 6 loads performed during the traditional free-weight bench press exercise (≈ 1-8-29-39-49-59 kg), (II) 4loads free method: 4 loads performed during the traditional free-weight bench press exercise (≈ 29-39-49-59 kg), and (III) 4-loads Smith method: 4 loads performed during the ballistic bench press throw exercise in a Smith machine (≈ 29-39-49-59 kg). Results. The linearity of the F-V relationship was very high and comparable for the 3 F-V methods (p = 0.204; median Pearson's correlation coefficient [r] = 0.99). The 3 methods were ranked from the most to the least reliable as follows: 6-loads free [coefficient of variation [CV] range = 3.6-6.7%] > 4-loads Smith (CV range = 4.6-12.4%) > 4-loads free (CV range = 3.8-14.5%). The higher reliability of the 6-loads free method was especially pronounced for F-V slope (CV ratio ≥ 1.85) and V 0 (CV ratio ≥ 1.49) parameters, while the lowest difference in reliability was observed for F 0 (CV ratio ≤ 1.27). The 6-loads free and 4-loads free methods showed a very high concurrent validity respect to the 4-loads Smith method for F 0 and P max (r ≥ 0.89), a moderate validity for the F-V slope (r = 0.66-0.82), and a low validity for V 0 (r ≤ 0.37). Discussion. The routine testing of the F-V relationship of upper-body muscles through the bench press exercise should include trials with very light loading conditions to enhance the reliability of the F-V relationship.

show abstract

“…However, angular velocities above 180°/s have been discouraged when assessing isokinetic strength during concentric actions because the range of motion under a constant velocity is very small and this may compromise the accuracy of the measurement [ 8 ]. The two velocities most commonly used during isokinetic testing procedures are 60 and 180°/s [ 9 , 10 , 11 ], which have been suggested to reveal the maximal capacities of the muscles to produce force and power, respectively [ 12 , 13 ]. However, it is known that higher force outputs can be achieved under isokinetic tests performed at lower angular velocities, while maximal power could be attained under isokinetic test performed at higher angular velocities (i.e., >180°/s) [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants’ Physical Activity Levels

Janićijević

Knežević

García-Ramos

et al. 2020

IJERPH

View full text Add to dashboard Cite

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°/s to determine the F-v relationship parameters (maximum force [F0], maximum velocity [v0], and maximum power [Pmax]). Results: F0 and Pmax 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 v0 was higher for knee flexors compared to knee extensors (ES = 0.59). Active males revealed higher F0 for knee extensors (ES = 0.72) and knee flexors (ES = 0.83) and higher Pmax 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.

show abstract

Agreement of three vs. eight isokinetic preset velocities to determine knee extensor torque- and power-velocity relationships

Cited by 15 publications

References 0 publications

The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship

The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship

Peer Review #1 of "The addition of very light loads into the routine testing of the bench press increases the reliability of the force–velocity relationship (v0.1)"

Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants’ Physical Activity Levels

Contact Info

Product

Resources

About