Relationships Between Rapid Isometric Torque Characteristics and Vertical Jump Performance in Division I Collegiate American Football Players

Thompson, Brennan J.; Ryan, Eric D.; Sobolewski, Eric J.; Smith, Doug B.; Akehi, Kazuma; Conchola, Eric C.; Buckminster, Tyler

doi:10.1519/jsc.0b013e318281637b

Cited by 28 publications

(12 citation statements)

References 36 publications

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“…Previous studies have used correlation coefficients rather than stepwise regressions to assess the rate of torque development-jump height relationship and so were not affected by this issue (De Ruiter et al, 2006;Marcora & Miller, 2000;McLellan et al, 2011;Thompson et al, 2013;Tillin et al, 2013). These assertions are further supported by a significant correlation between peak isometric torque and RTD 100-150 (r = 0.546; P = 0.01) in the present study.…”

Section: Discussionsupporting

confidence: 79%

“…However, further research is needed to explain quantitatively the relative contributions of kinetic and kinematic variables to this movement. Of the kinetic determinants, greater rate of force or torque development has frequently been associated with increased CMJ performance (De Ruiter, van Leeuwen, Heijblom, Bobbert, & De Haan, 2006;Marcora & Miller, 2000;McLellan, Lovell, & Gass, 2011;Thompson et al, 2013). Both rate of force development and rate of torque development measure the capabilities of skeletal muscle to rapidly generate muscle forces and for the purposes of the present study will be referred to as rate of torque development.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Determinants of countermovement jump performance: a kinetic and kinematic analysis

McErlain-Naylor

King

Pain

2014

Journal of Sports Sciences

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This study aimed to investigate the contributions of kinetic and kinematic parameters to inter-individual variation in countermovement jump (CMJ) performance. Two-dimensional kinematic data and ground reaction forces during a CMJ were recorded for 18 males of varying jumping experience.Ten kinetic and eight kinematic parameters were determined for each performance, describing peak lower-limb joint torques and powers, concentric knee extension rate of torque development, and CMJ technique. Participants also completed a series of isometric knee extensions to measure rate of torque development and peak torque. CMJ height ranged from 0.38 -0.73 m (mean 0.55 ± 0.09 m). CMJ peak knee power, peak ankle power, and take-off shoulder angle explained 74% of this observed variation. CMJ kinematic (58%) and CMJ kinetic (57%) parameters explained a much larger proportion of the jump height variation than the isometric parameters (18%), suggesting that coachable technique factors and the joint kinetics during the jump are important determinants of CMJ performance. Technique, specifically greater ankle plantar-flexion and shoulder flexion at take-off (together explaining 58% of the CMJ height variation), likely influences the extent to which maximal muscle capabilities can be utilised during the jump.

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Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 98%

Determinants of countermovement jump performance: a kinetic and kinematic analysis

McErlain-Naylor

King

Pain

2014

Journal of Sports Sciences

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“…). In a majority of these studies (Hakkinen et al., ; Aagaard et al., ; Suetta et al., ; Bojsen‐Moller et al., ; Caserotti et al., ; Thorlund et al., ; Dewhurst et al., ; Thompson et al., , ; Waugh et al., , ; Haff et al., ), absolute RFD was derived as the average slope of the force–time curve over specified time intervals of 0–30, 0–50, 0–100, 0–200 and even 0–400 ms relative to the onset of contraction, whereas MRFD typically has been quantified as the peak slope of the force–time curve (Gorostiaga et al., ; Sahaly et al., ; Aagaard et al., ; Mirkov et al., ; Suetta et al., ; Bojsen‐Moller et al., ; Korhonen et al., ; Holtermann et al., ; Hartmann et al., ; Almosnino et al., ; Thompson et al., , ; Haff et al., ). RFD has also been calculated as the time taken from the beginning of force production to the attainment of different fractions (e.g.…”

Section: Methodological Considerations In Rate Of Force Development Amentioning

confidence: 99%

Physiological and methodological aspects of rate of force development assessment in human skeletal muscle

Rodríguez-Rosell

Pareja‐Blanco

Aagaard

et al. 2017

Clin Physio Funct Imaging

145

148

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Rate of force development (RFD) refers to the ability of the neuromuscular system to increase contractile force from a low or resting level when muscle activation is performed as quickly as possible, and it is considered an important muscle strength parameter, especially for athletes in sports requiring high-speed actions. The assessment of RFD has been used for strength diagnosis, to monitor the effects of training interventions in both healthy populations and patients, discriminate high-level athletes from those of lower levels, evaluate the impairment in mechanical muscle function after acute bouts of eccentric muscle actions and estimate the degree of fatigue and recovery after acute exhausting exercise. Notably, the evaluation of RFD in human skeletal muscle is a complex task as influenced by numerous distinct methodological factors including mode of contraction, type of instruction, method used to quantify RFD, devices used for force/torque recording and ambient temperature. Another important aspect is our limited understanding of the mechanisms underpinning rapid muscle force production. Therefore, this review is primarily focused on (i) describing the main mechanical characteristics of RFD; (ii) analysing various physiological factors that influence RFD; and (iii) presenting and discussing central biomechanical and methodological factors affecting the measurement of RFD. The intention of this review is to provide more methodological and analytical coherency on the RFD concept, which may aid to clarify the thinking of coaches and sports scientists in this area.

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“…Isometric explosiveness, or the rate of torque development (RTD) in isometric contractions, has been examined in relation to jump performance in adults, with inconsistent results. While several studies reported significant correlations between jump performance and knee-extensor RTD (de Ruiter et al 2010;de Ruiter et al 2006;Paasuke et al 2001;Thompson et al 2013), others did not (Baker et al 1994;McGuigan and Winchester 2008). This inconsistency may be due to methodological differences between studies, such as different testing modalities, contraction types, or joint angles, or to different populations (e.g., athletes and non-athletes).…”

Section: R a F T Introductionmentioning

confidence: 98%

Isometric and dynamic strength and neuromuscular attributes as predictors of vertical jump performance in 11- to 13-year-old male athletes

McKinlay

Wallace

Dotan

et al. 2017

Appl. Physiol. Nutr. Metab.

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In explosive contractions, neural activation is a major factor in determining the rate of torque development, while the latter is an important determinant of jump performance. However, the contribution of neuromuscular activation and rate of torque development to jump performance in children and youth is unclear. The purpose of this study was to examine the relationships between the rate of neuromuscular activation, peak torque, rate of torque development, and jump performance in young male athletes. Forty-one 12.5 ± 0.5-year-old male soccer players completed explosive, unilateral isometric and dynamic (240°/s) knee extensions (Biodex System III), as well as countermovement-, squat-, and drop-jumps. Peak torque (pT), peak rate of torque development (pRTD), and rate of vastus lateralis activation (Q) during the isometric and dynamic contractions were examined in relation to attained jump heights. Isometric pT and pRTD were strongly correlated (r = 0.71) but not related to jump performance. Dynamic pT and pRTD, normalized to body mass, were significantly related to jump height in all 3 jumps (r = 0.38-0.66, p < 0.05). Dynamic normalized, but not absolute pRTD, was significantly related to Q (r = 0.35, p < 0.05). In young soccer players, neuromuscular activation and rate of torque development in dynamic contractions are related to jump performance, while isometric contractions are not. These findings have implications in the choice of training and assessment methods for young athletes.

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Relationships Between Rapid Isometric Torque Characteristics and Vertical Jump Performance in Division I Collegiate American Football Players

Cited by 28 publications

References 36 publications

Determinants of countermovement jump performance: a kinetic and kinematic analysis

Determinants of countermovement jump performance: a kinetic and kinematic analysis

Physiological and methodological aspects of rate of force development assessment in human skeletal muscle

Isometric and dynamic strength and neuromuscular attributes as predictors of vertical jump performance in 11- to 13-year-old male athletes

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