Neuromuscular Profile of Top-Level Women Kayakers Assessed Through Tensiomyography

García-García, Oscar; Carral, José María Cancela; Huelin-Trillo, Fernando

doi:10.1519/jsc.0000000000000702

Cited by 26 publications

(30 citation statements)

References 36 publications

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“…This is possibly linked to the positional roles of central defenders and goalkeepers, who are required to jump and dive to a greater extent than central defenders. Recently, TMG was shown to be sensitive enough to discriminate sex and lateral symmetry in top-level kayakers (10) and track adaptations over the course of a season in road cyclists (11). Curiously, both power (18.3 6 2.8 milliseconds) and endurance groups (22.9 6 4.0 milliseconds) in this study presented faster Tc of RF than the road cyclists (35.5-46.7 milliseconds).…”

Section: Discussionmentioning

confidence: 55%

Differences in Muscle Mechanical Properties Between Elite Power and Endurance Athletes

Loturco

Gil²,

Laurino

et al. 2015

Journal of Strength and Conditioning Research

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The aim of this study was to compare muscle mechanical properties (using tensiomyography-TMG) and jumping performance of endurance and power athletes and to quantify the associations between TMG parameters and jumping performance indices. Forty-one high-level track and field athletes from power (n = 22; mean ± SD age, height, and weight were 27.2 ± 3.6 years; 180.2 ± 5.4 cm; and 79.4 ± 8.6 kg, respectively) and endurance (endurance runners and triathletes; n = 19; mean ± SD age, height, and weight were 27.1 ± 6.9 years; 169.6 ± 9.8 cm; 62.2 ± 13.1 kg, respectively) specialties had the mechanical properties of their rectus femoris (RF) and biceps femoris (BF) assessed by TMG. Muscle displacement (Dm), contraction time (Tc), and delay time (Td) were retained for analyses. Furthermore, they performed squat jumps (SJs), countermovement jumps (CMJs), and drop jumps to assess reactive strength index (RSI), using a contact platform. Comparisons between groups were performed using differences based on magnitudes, and associations were quantified by the Spearman's ρ correlation. Power athletes showed almost certain higher performance in all jumping performance indices when compared with endurance athletes (SJ = 44.9 ± 4.1 vs. 30.7 ± 6.8 cm; CMJ = 48.9 ± 4.5 vs. 33.6 ± 7.2 cm; RSI = 2.19 ± 0.58 vs. 0.84 ± 0.39, for power and endurance athletes, mean ± SD, respectively; 00/00/100, almost certain, p ≤ 0.05), along with better contractile indices reflected by lower Dm, Tc, and Td (Tc BF = 14.3 ± 2.3 vs. 19.4 ± 3.3 milliseconds; Dm BF = 1.67 ± 1.05 vs. 4.23 ± 1.75 mm; Td BF = 16.8 ± 1.6 vs. 19.6 ± 1.3 milliseconds; Tc RF = 18.3 ± 2.8 vs. 22.9 ± 4.0 milliseconds; Dm RF = 4.98 ± 3.71 vs. 8.88 ± 3.45 mm; Td RF = 17.5 ± 1.0 vs. 20.9 ± 1.6 milliseconds, for power and endurance athletes, mean ± SD, respectively; 00/00/100, almost certain, p ≤ 0.05). Moderate correlations (Spearman's ρ between -0.61 and -0.72) were found between TMG and jumping performance. The power group presented better performance in vertical jumps, supporting the validity of these tests to distinguish between endurance and power athletes. Furthermore, TMG can discriminate the "athlete-type" using noninvasive indices moderately correlated with explosive lower-body performance. In summary, both vertical jump and TMG assessments could be useful in identifying and selecting young athletes.

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Section: Discussionmentioning

confidence: 55%

Differences in Muscle Mechanical Properties Between Elite Power and Endurance Athletes

Loturco

Gil²,

Laurino

et al. 2015

Journal of Strength and Conditioning Research

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“…Female elite kayakers are characterized by 34.8% more Dm, 123.7% more Tc and 11.3% more Td in trapezius (TR) muscles, while in the latissimus dorsi present 34.4% more Tc compared to non-kayaker women. However, practically no significant differences were found by gender when compared with elite male kayakers, except Td in the TR muscles of females, 19.5% lower than males 18…”

Section: Athletes´ Mechanical and Neuromuscular Characterizationmentioning

confidence: 70%

<p>Clinical utility of tensiomyography for muscle function analysis in athletes</p>

García-García¹,

Cuba-Dorado²,

Álvarez-Yates³

et al. 2019

OAJSM

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An exhaustive review has been made to filter the studies that have analyzed muscle function though tensiomyography (TMG) with elite or well-trained athletes. The results of this review indicate that the several protocols used in athletes to find the displacement-time curve with greater maximum radial muscle displacement showed a good-excellent reliability. TMG has been used to characterize athletes’ muscles contractile properties from specific sports disciplines, although there are very few sports that have been deeply analyzed. TMG seems to be useful to determine changes in muscles contractile properties after stimuli of competition, training or recovery. These changes have been strongly related with the fatigue produced after an effort. In addition, TMG parameters could be used to control training effects during a specific period or throughout the season being also a very useful tool to individualize athletes training loads. In this sense, it also seems to provide sports performance information in cyclic sports by relating some TMG parameters with performance indicators. On the other hand, the TMG-BCM algorithm has been used as a lateral and functional symmetry measure and as a monitoring tool for injury prevention and recovery. However, it seems to be no clear criterion that determines asymmetry degree, nor established contractile properties values as a reference to prevent or recover sports injuries. Despite the utility shown in these fields, there are still very few sports analyzed and it is really necessary to continue advancing in the knowledge of the contractile properties behavior, such as the effects of athletes’ training, competitions and injuries and even in the parameters interpretation obtained with the TMG.

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“…Spatial and temporal parameters were influenced by the training period, with reported reductions in Dm and Tc of knee extensors; furthermore, lower Dm in knee extensors and flexors were observed among soccer players compared with a control group. Similarly, García-García et al [ 63 ] presented data describing longer Tc in latissimus dorsi, and longer Tc and Td, as well as larger Dm, in the trapezius, among female kayakers compared with non-kayakers. These differences are attributed to kayak-specific training.…”

Section: Applications Of Tensiomyographymentioning

confidence: 86%

Assessment of Skeletal Muscle Contractile Properties by Radial Displacement: The Case for Tensiomyography

et al. 2018

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Skeletal muscle operates as a near-constant volume system; as such muscle shortening during contraction is transversely linked to radial deformation. Therefore, to assess contractile properties of skeletal muscle, radial displacement can be evoked and measured. Mechanomyography measures muscle radial displacement and during the last 20 years, tensiomyography has become the most commonly used and widely reported technique among the various methodologies of mechanomyography. Tensiomyography has been demonstrated to reliably measure peak radial displacement during evoked muscle twitch, as well as muscle twitch speed. A number of parameters can be extracted from the tensiomyography displacement/time curve and the most commonly used and reliable appear to be peak radial displacement and contraction time. The latter has been described as a valid non-invasive means of characterising skeletal muscle, based on fibre-type composition. Over recent years, applications of tensiomyography measurement within sport and exercise have appeared, with applications relating to injury, recovery and performance. Within the present review, we evaluate the perceived strengths and weaknesses of tensiomyography with regard to its efficacy within applied sports medicine settings. We also highlight future tensiomyography areas that require further investigation. Therefore, the purpose of this review is to critically examine the existing evidence surrounding tensiomyography as a tool within the field of sports medicine.

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Neuromuscular Profile of Top-Level Women Kayakers Assessed Through Tensiomyography

Cited by 26 publications

References 36 publications

Differences in Muscle Mechanical Properties Between Elite Power and Endurance Athletes

Differences in Muscle Mechanical Properties Between Elite Power and Endurance Athletes

<p>Clinical utility of tensiomyography for muscle function analysis in athletes</p>

Assessment of Skeletal Muscle Contractile Properties by Radial Displacement: The Case for Tensiomyography

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