2021
DOI: 10.3390/s21238124
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The Maximum Flywheel Load: A Novel Index to Monitor Loading Intensity of Flywheel Devices

Abstract: Background: The main aim of this study was (1) to find an index to monitor the loading intensity of flywheel resistance training, and (2) to study the differences in the relative intensity workload spectrum between the FW-load and ISO-load. Methods: twenty-one males participated in the study. Subjects executed an incremental loading test in the squat exercise using a Smith machine (ISO-load) or a flywheel device (FW-load). We studied different association models between speed, power, acceleration, and force, a… Show more

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Cited by 3 publications
(3 citation statements)
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References 35 publications
(68 reference statements)
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“…Specifically, the measurement of concentric and eccentric peak power (and the eccentric:concentric peak power ratio) have become more frequently utilized (Muñoz-López et al, 2021a). The literature has attempted to quantify how moments of inertia impact flywheel resistance training measures (such as peak power) to improve training outcomes and load management (Sabido et al, 2018;Muñoz-López et al, 2021b;O'Brien et al, 2021;Puustinen et al, 2021). Altering inertia (analyzed at group level rather than individually) did not affect peak power or trunk lean, but did alter velocity-highlighting that not all training variables may be equally effective for determining training intensity (McErlain-Naylor and Beato, 2020;Worcester et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…Specifically, the measurement of concentric and eccentric peak power (and the eccentric:concentric peak power ratio) have become more frequently utilized (Muñoz-López et al, 2021a). The literature has attempted to quantify how moments of inertia impact flywheel resistance training measures (such as peak power) to improve training outcomes and load management (Sabido et al, 2018;Muñoz-López et al, 2021b;O'Brien et al, 2021;Puustinen et al, 2021). Altering inertia (analyzed at group level rather than individually) did not affect peak power or trunk lean, but did alter velocity-highlighting that not all training variables may be equally effective for determining training intensity (McErlain-Naylor and Beato, 2020;Worcester et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…This has prompted practitioners to use rotary encoders (integrated into the axis of the system), which provide information about the angular velocity of the flywheel [ 23 , 24 ]. However, a dissonance between what happens on the axis (i.e., angular velocity in a conical cylinder flywheel device) [ 41 , 42 ] and what happens at kinematic level while the participant is performing the exercise should be considered, which limits the use of velocity for such purposes. Although angular velocity can be converted to linear velocity mathematically, this relationship relies on a known radius (which can vary within some devices) and the lack of slack in cable/rope.…”
Section: Discussionmentioning
confidence: 99%
“…When the training load of athletes is too strong, the breakdown of proteins in muscles will increase, which may lead to hematuria. At the same time, urine output will decrease, renal blood flow will decrease, and blood urea will significantly increase 24 , 25 . The basic concept of RPE comes from the subjective physical sensation of the human body, that is, the degree of tolerance or subjective sensation to a specific intensity, which is usually described by a 6–20 RPE scale, as exhibited in Table 1 26 .…”
Section: Methodsmentioning
confidence: 99%