Muscular adaptations to training programs using the Nordic hamstring exercise or the stiff-leg deadlift in rugby players

Marchiori, César Leal; Medeiros, Diulian Muniz; Severo-Silveira, Lucas; Oliveira, Gabriel dos Santos; Medeiros, Thales Menezes; Ribeiro-Alvares, João Breno de Araujo; Baroni, Bruno Manfredini

doi:10.1007/s11332-021-00820-0

Cited by 9 publications

(13 citation statements)

References 34 publications

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“…relaxation strain) is an important predictor of the increase in fascicle length or increase in the number of sarcomeres in series due to training 36,37 . In support of this, increases in biceps femoris fascicle length have been shown to be larger following NHC training as compared to stiff‐legged DL training 50 …”

Section: Discussionmentioning

confidence: 91%

“…36,37 In support of this, increases in biceps femoris fascicle length have been shown to be larger following NHC training as compared to stiff-legged DL training. 50 Moreover, since almost all fascicle lengthening and the high fascicle lengthening velocities occurred after the break-point, the NHC might need to be supramaximal to more effectively promote architectural adaptations. This is consistent with findings of larger increases in fascicle length following weighted NHC's compared to unloaded NHC's, 51 but contrasts suggestions of others to primarily perform assisted NHC's.…”

Section: Perspectivementioning

confidence: 99%

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Muscle forces and fascicle behavior during three hamstring exercises

Hooren

Vanwanseele

Rossom

et al. 2022

Scandinavian Med Sci Sports

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Hamstring injuries are one of the most common injuries in sports that involve high-speed running such as football and have a high risk of recurrence. Hamstring injuries frequently involve the biceps femoris long head and are believed to occur during the late swing phase of highspeed running when the muscle-tendon unit reaches its peak length and develops a high force. 1 Modifiable risk factors for hamstring injuries include low levels of hamstring strength 2 (although the association is weak when considered in isolation 3,4 ), poor hamstring strength

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Section: Discussionmentioning

confidence: 91%

Section: Perspectivementioning

confidence: 99%

Muscle forces and fascicle behavior during three hamstring exercises

Hooren

Vanwanseele

Rossom

et al. 2022

Scandinavian Med Sci Sports

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“…Despite some methodological similarities, intervention duration and frequency, the exact prescription was vastly different, including both greater volumes of both sprint assistance work (i.e., resisted sprint work and plyometrics) and greater volumes of maximal effort sprints. Finally, the control group performing the RDL had a moderate increase in BF LH FL, recent literature only observed a small effect when using a stiff leg deadlift [ 56 ]. However, again a shorter intervention duration and the associated error of FL measurement and estimation could explain the difference in observed adaptations.…”

Section: Discussionmentioning

confidence: 99%

Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance

et al. 2023

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The Nordic hamstring exercise (NHE) has commonly been investigated in isolation, however, within practice multiple modalities are commonly incorporated. However, the NHE has a low level of compliance within sport, with sprinting being potentially being preferred. The present study aimed to observe the effect of a lower-limb program with either additional NHE or sprinting on the modifiable risk factors hamstring strain injury (HSI) and athletic performance. 38 collegiate athletes were randomly assigned into three groups: control standardised lower-limb training program (n = 10 (2 female, 8 male), age = 23.50 ± 2.95 years, height = 1.75 ± 0.09 m, mass 77.66 ± 11.82 kg), additional NHE (n = 15 (7 female, 8 male), age = 21.40 ± 2.64 years, height = 1.74 ± 0.04 m, mass 76.95 ± 14.20 kg) and additional sprinting (n = 13 (4 female, 9 male), age = 22.15 ± 2.54 years, height = 1.74 ± 0.05 m, mass 70.55 ± 7.84 kg). All participants performed a standardised lower-limb training program twice per week for seven weeks, including Olympic lifting derivatives, squatting movements, and the Romanian deadlift, with experimental groups performing with either additional sprinting or NHE. Bicep femoris architecture, eccentric hamstring strength, jump performance, lower-limb maximal strength and sprint ability were measured pre and post. All training groups demonstrated significant (p < 0.001), small-moderate increases in Bicep femoris architecture (g = 0.60–1.22), with significant (p < 0.001), small-large increases in absolute and relative eccentric peak force (g = 0.60–1.84). Significant and small increases were observed in take-off velocity and mean propulsion force (p < 0.02, g = 0.47–0.64), with non-significant and small increases for both the sprint and control training groups for mean propulsion force (p > 0.05, g = 0.42–0.50). Nordic and sprint training groups had significant and small increases in peak absolute and relative net force (p < 0.001, g = 0.44–0.60). The control group had a non-significant trivial increase in absolute peak net force (p > 0.05, g = 0.22), with a significant and small increase in relative peak relative net force (p = 0.034, g = 0.48). Significant and small decreases for the NHE and sprinting training groups was observed for 0–10 m, 0–20 m, and 10–20 m sprint time (p < 0.010, g = 0.47–0.71). Performing multiple modalities, with either additional NHE or sprinting, as part of a complete resistance training program was superiorly effective for measures of modifiable risk factors HSI, with similar increases observed in measures of athletic performance derived from the standardised lower-limb training program.

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“…Participants gripped a handle connected to the platform by an adjustable chain and were instructed to pull as hard and as fast as possible, after a 3-second countdown, for 5-seconds. This test followed the procedure explained in previous literature (9) and related to various aspects of sport performance (3,30,32). Dominant handgrip strength was measured using the Takei 5401 Handgrip Dynamometer (Takei Scientific Instruments Co., Ltd, Tokyo, Japan).…”

Section: Isometric Hip Extension and Dominant Handgrip Strengthmentioning

confidence: 99%

“…Each subjects' BQ was calculated using their date of birth. The English annual selection year (i.e., September to August) was used to allocate subjects into four quartiles: (a) BQ1 (i.e., September to November), (b) BQ2 (i.e., December to February), BQ3 (i.e., March to May), and BQ4 (i.e., June to August) (32). Participants' birth distribution was then compared against birth national norms as previously used in literature (27,31).…”

Section: Birth Quartilementioning

confidence: 99%

The anthropometric, physical, and relative age characteristics of an English Premiership rugby union academy

Dimundo

Cole

Blagrove

et al. 2021

Int'l Journal of Strength & Conditioning

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Long-term athlete development is a primary focus for the England Rugby Football Union (RFU). The purpose of this study was to explore the anthropometric, physical, and relative age characteristics of rugby union academy players based on age group and playing position. Seventy-eight participants were examined for height, body mass, 10 and 20 m sprint, countermovement jump, reactive strength index, aerobic capacity, isometric hip extension, dominant handgrip strength, and birth quartile (BQ) across three age categories (i.e., under-16, under-18, and under-21) and two positions (forwards and backs). ANOVA and Kruskall–Wallis analysis were used to examine differences across each age category and position. TukeyHSD and Dunn’s test with Bonferroni correction was used for further post-hoc analysis. BQ distributions were compared against national norms using chi-square analysis. Results revealed that both older forwards (P=0.005) and backs (P=0.002) had significantly greater body mass, maximal aerobic capacity, and power compared to younger players. However, older forwards had slower 10 m sprint times compared to younger forwards. Moreover, relatively older players were significantly overrepresented across all age groups when compared to relatively younger players. Findings suggest that: (a) players should aim to develop greater parameters of body mass and aerobic capacity; (b) forwards should aim to develop acceleration and strength; (c) backs should aim to develop power and quickness; (d) players need to develop anthropometric and physical qualities and differences are apparent by age and position; and, (e) coaches should consider relative age when recruiting and developing young players. Key words: Talent identification; Talent development; Expertise; Physical development; Physiological profile; Rugby football

show abstract

Muscular adaptations to training programs using the Nordic hamstring exercise or the stiff-leg deadlift in rugby players

Cited by 9 publications

References 34 publications

Muscle forces and fascicle behavior during three hamstring exercises

Muscle forces and fascicle behavior during three hamstring exercises

Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance

The anthropometric, physical, and relative age characteristics of an English Premiership rugby union academy

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