Relationship between time to peak torque of hamstrings and sprint running performance

Bračič, Mitja; Hadžić, Vedran; Čoh, Milan; Dervišević, Edvin

doi:10.3233/ies-2011-0426

Cited by 11 publications

(8 citation statements)

References 10 publications

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“…Relative trunk extension (PTexr) and flexion (PTflr) peak torque were then normalized by body mass (Nm/kg), and were calculated as PTex (or PTfl) divided by the participant's body mass. 23 Rates of force development (Nm/s) for extension (RFDex) and flexion (RFDfl) were calculated as the ratio of the maximum torque attained during the repetitions and the duration that it took to reach the peaks.…”

Section: Methodsmentioning

confidence: 99%

The improvement of suspension training for trunk muscle power in Sanda athletes

Sun

et al. 2017

Journal of Exercise Science & Fitness

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The aim of this study was to investigate whether both suspension training (ST) and traditional training (TT) can improve Sanda athlete's strength quality of trunk muscles and to explore the effect of suspension training on Sanda athletes' trunk muscle power production. Twelve elite Sanda athletes from the Competitive Sports School of Shanghai University of Sport were randomly assigned to experimental group (EG) and control group (CG). EG and CG were regularly trained with suspension training and traditional strength training for 40 minutes three times per week. The total duration of training was 10 weeks. The measurements including peak torque (PT), PT/body weight (BW), and rate of force development (RFD) were used to assess trunk muscles strength. The results showed that there were significant differences between the two groups' performance when it was tested at the higher velocity of dynamometer (test of muscle power), but less significant differences when the two groups performance was tested at the lower velocity of dynamometer (test of maximum strength). The conclusion of this study is that compared with traditional training methods, suspension training can improve back and trunk flexion muscles strength more effectively. In particular, suspension training can improve the explosive power of trunk extension and flexion muscles.

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Section: Methodsmentioning

confidence: 99%

The improvement of suspension training for trunk muscle power in Sanda athletes

Sun

et al. 2017

Journal of Exercise Science & Fitness

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“…In addition to its potential role in preventing hamstring muscle strains in football, posterior thigh (e.g., hamstrings) muscle strength is believed to be important for sprinting performance in football (Askling et al., ; Bračič et al., ; Lockie et al., ). In this regard, the acceleration of the athlete's center of mass during sprint running is determined by body mass and three external forces acting on the body: ground reaction force (GRF), gravitational force, and air/wind resistance (Hunter et al., ).…”

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confidence: 99%

Effects of hamstring‐emphasized neuromuscular training on strength and sprinting mechanics in football players

Mendiguchía¹,

Martínez-Ruiz

Morin

et al. 2014

Scandinavian Med Sci Sports

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The objective of this study was to examine the effects of a neuromuscular training program combining eccentric hamstring muscle strength, plyometrics, and free/resisted sprinting exercises on knee extensor/flexor muscle strength, sprinting performance, and horizontal mechanical properties of sprint running in football (soccer) players. Sixty footballers were randomly assigned to an experimental group (EG) or a control group (CG). Twenty-seven players completed the EG and 24 players the CG. Both groups performed regular football training while the EG performed also a neuromuscular training during a 7-week period. The EG showed a small increases in concentric quadriceps strength (ES = 0.38/0.58), a moderate to large increase in concentric (ES = 0.70/0.74) and eccentric (ES = 0.66/0.87) hamstring strength, and a small improvement in 5-m sprint performance (ES = 0.32). By contrast, the CG presented lower magnitude changes in quadriceps (ES = 0.04/0.29) and hamstring (ES = 0.27/0.34) concentric muscle strength and no changes in hamstring eccentric muscle strength (ES = -0.02/0.11). Thus, in contrast to the CG (ES = -0.27/0.14), the EG showed an almost certain increase in the hamstring/quadriceps strength functional ratio (ES = 0.32/0.75). Moreover, the CG showed small magnitude impairments in sprinting performance (ES = -0.35/-0.11). Horizontal mechanical properties of sprint running remained typically unchanged in both groups. These results indicate that a neuromuscular training program can induce positive hamstring strength and maintain sprinting performance, which might help in preventing hamstring strains in football players.

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“…The targeting of the posterior chain musculature during VertiRun exercise could condition the posterior chain, which is generally under conditioned relative to anterior musculature of the lower limb ( Ahmad et al, 2006 ; Askling et al, 2003 ). Posterior thigh muscle strength and a rebalancing of the posterior:anterior thigh muscle strength ratio are believed to be significant contributors to running performance ( Askling et al, 2003 ; Bračič et al, 2011 ; Chumanov et al, 2011 ) improves running economy ( Sundby and Gorelick, 2014 ) and has been implemented in preventing multiple lower-limb injuries such as hamstring strains and anterior cruciate ligament ruptures ( Ahmad et al, 2006 ; Rosene et al, 2001 ). The conditioning of previously poorly conditioned musculature could reduce the deleterious effects of metabolic acidosis and delay the fatigue of other prominent musculature recruited during overground running ( Burgomaster et al, 2006 ; Foster et al, 1995 ).…”

Section: Discussionmentioning

confidence: 99%

Sprint interval training on the vertical treadmill improves aerobic and anaerobic running performance

et al. 2018

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The vertical treadmill (VertiRun) is an unresearched mode of exercise where users engage in a “running-like” action whilst body weight is supported by a recumbent bench and overhanging resistance cables are tethered to the user’s ankles. The purpose of this study was to determine the effects of training on a VertiRun and any cross-training effect on running performance. Thirty active males (age, 22±4 years; stature, 1.79±0.08 m; body mass, 78.5±12.6 kg) volunteered for this study. Participants’ aerobic and anaerobic running performance were determined by incremental maximum rate of oxygen consumption (VO2max) treadmill test and a maximum anaerobic running test (MART), respectively. Participants were matched and then randomly assigned to either a VertiRun group, 20-m shuttle sprint group or control group. The intervention consisted of 4–6, 30-sec all-out efforts with 4-min recovery between bouts, 3 days a week for 6 weeks. The pre- and postintervention VO2max and MART were analysed using a mixed repeated measures analysis of variance. MART increased by 4.5% in the VertiRun group (P=0.006) and 4% in the sprint group (P<0.001). VO2max increased by 6.2% in the VertiRun group (P=0.009) and 5.5% in the sprint group (P=0.020). The MART and VO2max of the control group were unchanged (P=0.910 and P=0.915, respectively). These data suggest that the VertiRun could be an effective cross-training mode for running and could supplement training programmes. Also, as VertiRun is a low-impact exercise it might be useful in the physical preparation of athletes returning to sport following lower limb injury.

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Relationship between time to peak torque of hamstrings and sprint running performance

Cited by 11 publications

References 10 publications

The improvement of suspension training for trunk muscle power in Sanda athletes

The improvement of suspension training for trunk muscle power in Sanda athletes

Effects of hamstring‐emphasized neuromuscular training on strength and sprinting mechanics in football players

Sprint interval training on the vertical treadmill improves aerobic and anaerobic running performance

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