Muscle fiber composition, jumping performance, and rate of force development adaptations induced by different power training volumes in females

Methenitis, Spyridon; Mpampoulis, Thomas; Spiliopoulou, Polyxeni; Papadimas, George K.; Papadopoulos, Constantinos; Chalari, Eleanna; Evangelidou, Eftychia; Stasinaki, Angeliki-Nikoletta; Nomikos, Tzortzis; Terzis, Gerasimos

doi:10.1139/apnm-2019-0786

Cited by 18 publications

(35 citation statements)

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“…The results of our research indicate a similar influence of the SS in low fatigue conditions as well as in more exhausting procedures [ 20 ], with the greatest decreases in anterior deltoid and triceps brachii muscle activity. This indicates the possibility of using the SS in strength and power training based on a low number of repetitions and high velocity without significant fatigue [ 26 , 51 , 52 ].…”

Section: Discussionmentioning

confidence: 99%

Impact of the “Sling Shot” Supportive Device on Upper-Body Neuromuscular Activity during the Bench Press Exercise

Wojdała

Gołaś

Krzysztofik

et al. 2020

IJERPH

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The aim of this study was to compare the muscle activity between the sling shot assisted (SS) and control (CONT) flat barbell bench press for selected external loads of 70%, 85%, 100% one-repetition maximum (1RM). Ten resistance-trained men participated in the study (age = 22.2 ± 1.9 years, body mass = 88.7 ± 11.2 kg, body height = 179.5 ± 4.1, 1RM in the bench press = 127.25 ± 25.86 kg, and strength training experience = 6 ± 2.5 years). Evaluation of peak muscle activity of the dominant body side was carried out using surface electromyography (sEMG) recorded for the triceps brachii, pectoralis major, and anterior deltoid during each attempt. The three-way repeated measure ANOVA revealed statistically significant main interaction for condition x muscle group (p < 0.01; η2 = 0.569); load x muscle group (p < 0.01; η2 = 0.709); and condition x load (p < 0.01; η2 = 0.418). A main effect was also observed for condition (p < 0.01; η2 = 0.968); load (p < 0.01; η2 = 0.976); and muscle group (p < 0.01; η2 = 0.977). The post hoc analysis for the main effect of the condition indicated statistically significant decrease in %MVIC for the SS compared to CONT condition (74.9 vs. 88.9%MVIC; p < 0.01; ES = 0.39). The results of this study showed that using the SS significantly affects the muscle activity pattern of the flat bench press and results in its acute decrease in comparison to an equal load under CONT conditions. The SS device may be an effective tool both in rehabilitation and strength training protocols by increasing stability with a reduction of muscular activity of the prime movers.

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Section: Discussionmentioning

confidence: 99%

Impact of the “Sling Shot” Supportive Device on Upper-Body Neuromuscular Activity during the Bench Press Exercise

Wojdała

Gołaś

Krzysztofik

et al. 2020

IJERPH

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“…A total body scan was performed with dual energy x-ray absorptiometry (DPX-L, LUNAR Radiation, Madison, WI, USA), following the same methodology performed in previous studies from our laboratory [ 2 , 16 , 17 , 28 , 31 , 32 ]. All measurements were analyzed using the LUNAR radiation body composition program.…”

Section: Methodsmentioning

confidence: 99%

“…Leg Press Isometric Force and Rate of Force Development. Leg press isometric force and rate of force development were assessed according to the methodology previously described [ 10 , 17 , 28 , 30 , 33 , 34 ]. After reporting to the laboratory, participants were initially warmed up for 5 min on a stationary bicycle at 50 W. Participants were seated on a custom-made steel leg press chair and placed both feet on a force platform (Applied Measurements Ltd. Co., Aldermaston, UK, WPX0606-1000, sampling frequency 1000 Hz), which was positioned perpendicularly on a concrete laboratory wall.…”

Section: Methodsmentioning

confidence: 99%

“…Jumping Performance. Jumping performance was evaluated with a countermovement jump test, according to the methodology previously described [ 2 , 10 , 28 , 31 , 33 , 37 ]. The test was performed on a force platform (Applied Measurements Ltd. Co. UK, WP800-1000 kg, 80 × 80 cm, sampling frequency 1 kHz) after the end of the isometric leg press evaluation.…”

Section: Methodsmentioning

confidence: 99%

“…Muscle fiber composition and fascicle length may change in response to systematic training. Explosive resistance training results in increased fascicle length and the maintenance or decrease in the percentage of type IIx muscle fibers [ 28 , 29 , 30 ]. Therefore, the possible link between muscle fiber composition and fascicle length may be better revealed in individuals with minimal exposure to resistance/power training, yet with high-power potential.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Weak Association between Vastus Lateralis Muscle Fiber Composition and Fascicle Length in Young Untrained Females

Mpampoulis

Methenitis

Papadopoulos

et al. 2021

Sports

Self Cite

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The aim of the study was to investigate the relationships between vastus lateralis muscle fiber length and fiber type composition in individuals with minimal exposure to systematic resistance/power training. In sixty female physical education students (age: 21.03 ± 2.1 years, body weight: 59.8 ± 9.7 kg, body height: 166.2 ± 6.5 cm), with no experience in systematic training, lean body mass, VL muscle architecture and fiber composition type, countermovement jumping (CMJ) performance, and isometric leg press rate of force development were evaluated. Data were analyzed for all participants, as well as two equally numbered groups assigned according to their maximum countermovement jumping power (High-Power or Low-Power group). Significant but low correlations were found between type II muscle fiber percentage and fascicle length (N = 60, p < 0.05). Significant correlations were found between type IIa and IIx muscle fiber percentage cross-sectional area (%CSA) and fascicle length (N = 60; r = 0.321, and r = 0.378; respectively, p < 0.05). These correlations were higher for the High-Power group (r = 0.499, and r = 0.522; respectively, p < 0.05), and lower, and nonsignificant, for the Low-Power group. The best predictor of strength/power performance was the lean body mass of the lower extremities (r = 0.389–0.645, p < 0.05). These results suggest that in females with minimal exposure to systematic training, fascicle length may be weakly linked with type II fiber areas, only in females with high-power profiles.

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Type IIx muscle fibers are related to poor body composition, glycemic and lipidemic blood profiles in young females: the protective role of type I and IIa muscle fibers

Methenitis,

Nomikos,

Mpampoulis

et al. 2023

Eur J Appl Physiol

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Muscle fiber composition, jumping performance, and rate of force development adaptations induced by different power training volumes in females

Cited by 18 publications

References 50 publications

Impact of the “Sling Shot” Supportive Device on Upper-Body Neuromuscular Activity during the Bench Press Exercise

Impact of the “Sling Shot” Supportive Device on Upper-Body Neuromuscular Activity during the Bench Press Exercise

Weak Association between Vastus Lateralis Muscle Fiber Composition and Fascicle Length in Young Untrained Females

Type IIx muscle fibers are related to poor body composition, glycemic and lipidemic blood profiles in young females: the protective role of type I and IIa muscle fibers

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