scholarly journals Effect of Inter-Repetition Rest vs. Traditional Strength Training on Lower Body Strength, Rate of Force Development, and Muscle Architecture

2020 ◽  
Vol 11 (1) ◽  
pp. 45
Author(s):  
Nikolaos Zaras ◽  
Angeliki-Nikoletta Stasinaki ◽  
Polyxeni Spiliopoulou ◽  
Thomas Mpampoulis ◽  
Marios Hadjicharalambous ◽  
...  
Keyword(s):  
Strength Training ◽  
Repeated Measures ◽  
Muscle Architecture ◽  
Rate Of Force Development ◽  
Lower Body ◽  
Fascicle Length ◽  
Force Development ◽  
Leg Press ◽  
Body Strength ◽  
Lower Body Strength

The purpose of the study was to investigate the effect of seven weeks inter-repetition rest vs. traditional strength training on lower body strength, rate of force development (RFD), and vastus lateralis (VL) muscle architecture. Sixteen male participants were assigned into two groups: the inter-repetition rest (IRRG) and the traditional (TG) group. Both groups performed the leg press exercise with four sets of six maximum repetitions (RM) for two training sessions per week. IRRG added a 20 s inter-repetition rest period between single repetitions. Before and after the training period, 1-RM in leg press, isometric leg press RFD, and peak force (PF), VL muscle architecture, vastus intermedius (VI) thickness, and quadriceps’ cross sectional area (CSA) with ultrasonography, were measured. Two way ANOVA for repeated measures was used for statistics. One-RM strength increased similarly for both groups (p < 0.05), while percentage increases in RFD were greater for IRRG compared to TG (p < 0.05). Isometric PF was increased similarly for both groups (p < 0.05). VL and VI thickness as well as CSA of the quadriceps increased similarly in both groups, while VL fascicle length increased more following IRRG compared to TG (IRRG: 4.8 ± 6.1% vs. TG: −3.9 ± 5.4%, p = 0.001). These results suggest that 20 s inter-repetition rest during strength training may effectively increase lower body explosive strength and muscle fascicle length without compromising muscle hypertrophy.

The repeated bout effect of typical lower body strength training sessions on sub-maximal running performance and hormonal response

2015 ◽  
Vol 115 (8) ◽  
pp. 1789-1799 ◽  
Author(s):  
Kenji Doma ◽  
Moritz Schumann ◽  
Wade H. Sinclair ◽  
Anthony S. Leicht ◽  
Glen B. Deakin ◽  
...  
Keyword(s):  
Strength Training ◽  
Repeated Bout Effect ◽  
Lower Body ◽  
Hormonal Response ◽  
Running Performance ◽  
Body Strength ◽  
Lower Body Strength ◽  
Repeated Bout

scholarly journals Effect of 8 weeks of free-weight and machine-based strength training on strength and power performance

2016 ◽  
Vol 53 (1) ◽  
pp. 201-210 ◽  
Author(s):  
Klaus Wirth ◽  
Michael Keiner ◽  
Hagen Hartmann ◽  
Andre Sander ◽  
Christoph Mickel
Keyword(s):  
Strength Training ◽  
Repeated Measures ◽  
Isometric Force ◽  
Countermovement Jump ◽  
Squat Jump ◽  
Repetition Maximum ◽  
Force Development ◽  
Leg Press ◽  
Free Weight ◽  
Maximal Isometric Force

AbstractThe aim of this study was to evaluate the effectiveness of free-weight and machine-based exercises to increase different strength and speed-strength variables. One hundred twenty male participants (age: 23.8 ± 2.5 years; body height: 181.0 ± 6.8 cm; body mass: 80.2 ± 8.9 kg) joined the study. The 2 experimental groups completed an 8 week periodized strength training program that included 2 training sessions per week. The exercises that were used in the strength training programs were the parallel barbell squat and the leg press. Before and after the training period, the 1-repetition-maximum in the barbell squat and the leg press, the squat jump, the countermovement jump and unilateral isometric force (maximal isometric force and the rate of force development) were evaluated. To compare each group pre vs. post-intervention, analysis of variance with repeated measures and Scheffé post-hoc tests were used. The leg press group increased their 1-repetition-maximum significantly (p < 0.001), while in the squat group such variables as 1-repetition-maximum, the squat jump and the countermovement jump increased significantly (p < 0.001). The maximal isometric force showed no statistically significant result for the repeated measures factor, while the rate of force development of the squat group even showed a statistically significant decrease. Differences between the 2 experimental groups were detected for the squat jump and the countermovement jump. In comparison with the leg press, the squat might be a better strength training exercise for the development of jump performance.

scholarly journals Force–Time Characteristics of Dynamic and Isometric Muscle Actions: Association with Muscle Architecture in Female Athletes

2021 ◽  
Vol 11 (11) ◽  
pp. 5272
Author(s):  
Vasiliki Gaspari ◽  
Gregory C. Bogdanis ◽  
Ioli Panidi ◽  
Georgia Giannakopoulou ◽  
Gerasimos Terzis ◽  
...  
Keyword(s):  
Female Athletes ◽  
Average Rate ◽  
Vastus Lateralis ◽  
Muscle Thickness ◽  
Muscle Architecture ◽  
Rate Of Force Development ◽  
Fascicle Length ◽  
Force Development ◽  
Force Time ◽  
Muscle Actions

The association between force–time characteristics of isometric leg press (ILP) and countermovement jump (CMJ) with vastus lateralis (VL) muscle architecture, was examined in 19 female athletes (aged 23.2 ± 5.4 years). Peak force (PF), average rate of force development (ARFD) and rate of force development (RFD) at different time epochs were calculated from the force–time curve, as well as CMJ jump height and power. Significant correlations were found between ILP-PF and CMJ power (r = 0.658, p < 0.01), while both variables were correlated with VL thickness and fascicle length (r = 0.471 to 0.648, p < 0.05). Significant correlations were also observed between ILP-RFD epochs and VL fascicle length (r = 0.565 to 0.646, p < 0.05) and between CMJ height with VL thickness (r = 0.523, p < 0.05). Furthermore, positive correlations were found between ILP and CMJ in ARFD (r = 0.625, p < 0.01) and RFD epochs (r = 0.464 to 0.566, p < 0.05). ILP-PF and muscle thickness accounted for 52.8% (p = 0.002) of the variance in CMJ power. These results suggest that isometric force time characteristics are associated with power generation during dynamic muscle actions. Furthermore, VL muscle thickness and fascicle length are associated with rapid force production in female athletes, irrespective of the type of muscle action.

A Descriptive Study of Lower-Body Strength and Power in Overweight Adolescents

2009 ◽  
Vol 21 (1) ◽  
pp. 34-46 ◽  
Author(s):  
James L. Nuzzo ◽  
Michael J. Cavill ◽  
N. Travis Triplett ◽  
Jeffrey M. McBride
Keyword(s):  
Body Mass ◽  
Vertical Jump ◽  
Descriptive Analysis ◽  
Lower Body ◽  
Maximal Strength ◽  
Jump Performance ◽  
Leg Press ◽  
Body Strength ◽  
Significant Difference ◽  
Lower Body Strength

The primary purpose of this investigation was to provide a descriptive analysis of lower-body strength and vertical jump performance in overweight male (n = 8) and female (n = 13) adolescents. Maximal strength was tested in the leg press and isometric squat. Kinetic and kinematic variables were assessed in vertical jumps at various loads. When compared with females, males demonstrated significantly greater (p ≤ .05) absolute maximal strength in the leg press. However, when maximal strength was expressed relative to body mass, no significant difference was observed. There were no significant differences between males and females in vertical jump performance at body mass.

scholarly journals Rate of Force Development and Muscle Architecture after Fast and Slow Velocity Eccentric Training

Sports ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 41 ◽  
Author(s):  
Angeliki-Nikoletta Stasinaki ◽  
Nikolaos Zaras ◽  
Spyridon Methenitis ◽  
Gregory Bogdanis ◽  
Gerasimos Terzis
Keyword(s):  
Resistance Training ◽  
Vastus Lateralis ◽  
Muscle Architecture ◽  
Rate Of Force Development ◽  
Vastus Lateralis Muscle ◽  
Eccentric Training ◽  
Fascicle Length ◽  
Force Development ◽  
Muscle Fascicle ◽  
Slow Velocity

The aim of the study was to investigate the rate of force development (RFD) and muscle architecture early adaptations in response to training with fast- or slow-velocity eccentric squats. Eighteen young novice participants followed six weeks (two sessions/week) of either fast-velocity (Fast) or slow-velocity (Slow) squat eccentric-only training. Fast eccentric training consisted of nine sets of nine eccentric-only repetitions at 70% of 1-RM with <1 s duration for each repetition. Slow eccentric training consisted of five sets of six eccentric-only repetitions at 90% of 1-RM with ~4 sec duration for each repetition. Before and after training, squat 1-RM, countermovement jump (CMJ), isometric leg press RFD, and vastus lateralis muscle architecture were evaluated. Squat 1-RM increased by 14.5 ± 7.0% (Fast, p < 0.01) and by 5.4 ± 5.1% (Slow, p < 0.05). RFD and fascicle length increased significantly in the Fast group by 10–19% and 10.0 ± 6.2%, p < 0.01, respectively. Muscle thickness increased only in the Slow group (6.0 ± 6.8%, p < 0.05). Significant correlations were found between the training induced changes in fascicle length and RFD. These results suggest that fast eccentric resistance training may be more appropriate for increases in rapid force production compared to slow eccentric resistance training, and this may be partly due to increases in muscle fascicle length induced by fast eccentric training.

Early phase adaptations of single vs. multiple sets of strength training on upper and lower body strength gains

2009 ◽  
Vol 17 (4) ◽  
pp. 207-212 ◽  
Author(s):  
Martim Bottaro ◽  
João Veloso ◽  
Belmiro Freitas de Salles ◽  
Roberto Simão ◽  
Rodrigo Celes ◽  
...  
Keyword(s):  
Strength Training ◽  
Early Phase ◽  
Lower Body ◽  
Body Strength ◽  
Lower Body Strength

scholarly journals Comparing periodised protocols for the maintenance of strength and power in resistance-trained women

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Kok Lian Yee
Keyword(s):  
Body Mass ◽  
Repeated Measures ◽  
Bench Press ◽  
Upper Body ◽  
Lower Body ◽  
Power Training ◽  
Body Strength ◽  
Upper Body Strength ◽  
Lower Body Strength ◽  
Training Programmes

Purpose: The purpose of the study was to compare the effects of daily undulating periodisation (DUP) and session undulating periodisation (SUP) for maintaining strength and power over a 3-wk period in a group of resistance-trained women.  DUP comprised one session each of strength and power training while DUP combined both strength and power training within each session.  Both training programmes were equalised for training volume and intensity.  Methods: Sixteen resistance-trained women were pre-tested for body mass, mid-arm and mid-thigh girths, one-repetition maximum (1 RM) dynamic squat (SQ) and bench press (BP), and  power during countermovement jumps (CMJ) and bench press throws (BPT). The 1 RM SQ and BP data were used to assign the participants into groups for twice a week training.  Results:  A two-way (group x time) analysis of variance (ANOVA) with repeated measures for time found no significant changes in body mass, mid-arm girth, 1 RM BP and SQ, and BPT and CMJ power for both groups.  However, significant changes in mid-thigh girth were found (F1, 13 = 5.733, p = 0.032). Pooled BP data indicated improved upper body strength (BP: F1, 13 = 6.346, p = 0.025) and decreased CMJ power (p = 0.016).  Conclusions:  Both DUP and SUP programmes increased upper-body strength and maintained lower-body strength adequately across a 3-wk phase probably because the participants were weaker in the upper-body and the lower-body had a reduced capacity for strength adaptations and improvements.

Effects of Traditional vs. Alternating Whole-Body Strength Training on Rate of Force Development and Volume

2014 ◽  
Vol 46 ◽  
pp. 251
Author(s):  
Anthony B. Ciccone ◽  
Austria L. Cho ◽  
Rex Hafenstine ◽  
Maria C. Pereira ◽  
Lee E. Brown ◽  
...  
Keyword(s):  
Strength Training ◽  
Rate Of Force Development ◽  
Whole Body ◽  
Force Development ◽  
Body Strength

Factors That Affect Selection of Elite Women’s Sculling Crews

2013 ◽  
Vol 8 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Trent W. Lawton ◽  
John B. Cronin ◽  
Michael R. McGuigan
Keyword(s):  
Body Mass ◽  
Time Trial ◽  
Lower Body ◽  
Leg Press ◽  
Leg Strength ◽  
Arm Span ◽  
Body Strength ◽  
Lower Body Strength ◽  
Performance Gains ◽  
Rowing Ergometry

Purpose:There is no common theory on criteria to appropriately select crew rowers in pursuit of small performance gains. The purpose of this study was to establish whether anthropometry, rowing ergometry, or lower body strength were suitable criteria to identify differences between selected and nonselected sculling crews.Method:Twelve elite women performed a 2000-m ergometer time trial and a 5-repetition leg-press dynamometer test, were anthropometrically profiled, and participated in on-water national crew seat-racing trials. Log-transformed data were analyzed to compare percent (± SD) and standardized differences in group means (ES; ±90% confidence interval [CI]) between selected and nonselected oarswomen, with adjustments for body mass where appropriate.Results:Selected crew boats were 4.60% ± 0.02% faster and won by an average margin of 13.5 ± 0.7 s over 1500 m. There were no differences between crews on average in height, arm span, seated height, body mass, or 8-site skinfold sum (body fat). Difference in 2000-m ergometer times were also trivial (ES = 0.2, 90%CI = −0.6 to 1.1, P = .63); however, selected crews had moderately greater leg-press strength (ES = 1.1, 90%CI = 0.3−1.9, P = .03).Conclusion:Selected oarswomen with comparable anthropometry and 2000-m ergometer ability had greater lower body strength. Coaches of elite oarswomen might consider leg strength as part of crew-selection criteria, given acceptable on-water boatmanship and attainment of 2000-m ergometer benchmarks.

Sign in / Sign up

Export Citation Format

Share Document