The Effects of Sprint vs. Resisted Sled-Based Training; an 8-Week in-Season Randomized Control Intervention in Elite Rugby League Players
Abstract
:1. Introduction
2. Materials and Methods
2.1. Participants
2.2. Procedure
2.3. Sled Towing Group
2.4. Sprint Training Group
2.5. Testing Procedures
2.6. 5, 10 and 20 m Sprints
2.7. Counter Movement Jump
2.8. 505-Agility Test
2.9. Analyses
3. Results
3.1. Baseline Characteristics
3.2. 5 m Sprint
3.3. 10 m Sprint
3.4. 20 m Sprint
3.5. Counter Movement Jump
3.6. 505-Agility Test
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
- Gabbett, T.J. Physiological characteristics of junior and senior rugby league players. Br. J. Sports Med. 2002, 36, 334–339. [Google Scholar] [CrossRef] [PubMed] [Green Version]
- Argus, C.K.; Gill, N.D.; Keogh, J.W. Characterization of the differences in strength and power between different levels of competition in rugby union athletes. J. Strength Cond. Res. 2012, 26, 2698–2704. [Google Scholar] [CrossRef] [Green Version]
- Gabbett, T.; King, T.; Jenkins, D. Applied physiology of rugby league. Sports Med. 2008, 38, 119–138. [Google Scholar] [CrossRef]
- Gabbett, T.; Herzig, P. Physiological characteristics of junior elite and sub-elite rugby league players. Strength Cond. Coach 2004, 12, 19–24. [Google Scholar]
- Gabbett, T.J.; Jenkins, D.G.; Abernethy, B. Physiological and anthropometric correlates of tackling ability in junior elite and sub-elite rugby league players. J. Strength Cond. Res. 2010, 24, 2989–2995. [Google Scholar] [CrossRef] [PubMed]
- Baker, D.G.; Newton, R.U. Comparison of lower body strength, power, acceleration, speed, agility, and sprint momentum to describe and compare playing rank among professional rugby league players. J. Strength Cond. Res. 2008, 22, 153–158. [Google Scholar] [CrossRef]
- Till, K.; Cobley, S.; O’Hara, J.; Brightmore, A.; Cooke, C.; Chapman, C. Using anthropometric and performance characteristics to predict selection in junior UK Rugby League players. J. Sci. Med. Sport 2011, 14, 264–269. [Google Scholar] [CrossRef]
- Bentley, I.; Sinclair, J.K.; Atkins, S.J.; Metcalfe, J.; Edmundson, C.J. Effect of velocity-based loading on acceleration kinetics and kinematics during sled towing. J. Strength Cond. Res. 2018. [Google Scholar] [CrossRef]
- Bentley, I.; Atkins, S.; Edmundson, C.; Metcalfe, J.; Sinclair, J. A review of resisted sled training: Implications for current practice. Prof Strength Cond 2014, 34, 23–30. [Google Scholar]
- Bentley, I.; Atkins, S.J.; Edmundson, C.J.; Metcalfe, J.; Sinclair, J.K. Impact of harness attachment point on kinetics and kinematics during sled towing. J. Strength Cond. Res. 2016, 30, 768–776. [Google Scholar] [CrossRef]
- Lockie, R.G.; Murphy, A.J.; Spinks, C.D. Effects of resisted sled towing on sprint kinematics in field-sport athletes. J. Strength Cond. Res. 2003, 17, 760–767. [Google Scholar]
- Murray, A.; Aitchison, T.C.; Ross, G.; Sutherland, K.; Watt, I.; McLean, D.; Grant, S. The effect of towing a range of relative resistances on sprint performance. J. Sports Sci. 2005, 23, 927–935. [Google Scholar] [CrossRef]
- Cronin, J.; Hansen, K.; Kawamori, N.; Mcnair, P. Effects of weighted vests and sled towing on sprint kinematics. Sports Biomech. 2008, 7, 160–172. [Google Scholar] [CrossRef]
- Alcaraz, P.E.; Elvira, J.L.L.; Palao, J.M. Kinematic, strength, and stiffness adaptations after a short-term sled towing training in athletes. Scand. J. Med. Sci. Sports 2014, 24, 279–290. [Google Scholar] [CrossRef]
- Kawamori, N.; Newton, R.; Nosaka, K. Effects of weighted sled towing on ground reaction force during the acceleration phase of sprint running. J. Sports Sci. 2014, 32, 1139–1145. [Google Scholar] [CrossRef]
- Lockie, R.G.; Murphy, A.J.; Schultz, A.B.; Knight, T.J.; de Jonge, X.A.J. The effects of different speed training protocols on sprint acceleration kinematics and muscle strength and power in field sport athletes. J. Strength Cond. Res. 2012, 26, 1539–1550. [Google Scholar] [CrossRef] [Green Version]
- McMorrow, B.J.; Ditroilo, M.; Egan, B. Effect of heavy resisted sled sprint training during the competitive season on sprint and change-of-direction performance in professional soccer players. Int. J. Sports Physiol. Perform. 2019, 14, 1066–1073. [Google Scholar] [CrossRef]
- Clark, K.P.; Stearne, D.J.; Walts, C.T.; Miller, A.D. The longitudinal effects of resisted sprint training using weighted sleds vs. weighted vests. J. Strength Cond. Res. 2010, 24, 3287–3295. [Google Scholar] [CrossRef]
- Spinks, C.D.; Murphy, A.J.; Spinks, W.L.; Lockie, R.G. The effects of resisted sprint training on acceleration performance and kinematics in soccer, rugby union, and Australian football players. J. Strength Cond. Res. 2007, 21, 77–85. [Google Scholar] [CrossRef]
- Harrison, A.J.; Bourke, G. The effect of resisted sprint training on speed and strength performance in male rugby players. J. Strength Cond. Res. 2009, 23, 275–283. [Google Scholar] [CrossRef]
- West, D.J.; Cunningham, D.J.; Bracken, R.M.; Bevan, H.R.; Crewther, B.T.; Cook, C.J.; Kilduff, L.P. Effects of resisted sprint training on acceleration in professional rugby union players. J. Strength Cond. Res. 2013, 27, 1014–1018. [Google Scholar] [CrossRef]
- Lahti, J.; Huuhka, T.; Romero, V.; Bezodis, I.; Morin, J.B.; Häkkinen, K. Changes in sprint performance and sagittal plane kinematics after heavy resisted sprint training in professional soccer players. PeerJ 2020, 8, e10507. [Google Scholar] [CrossRef]
- Morin, J.B.; Capelo-Ramirez, F.; Rodriguez-Pérez, M.A.; Cross, M.R.; Jimenez-Reyes, P. Individual adaptation kinetics following heavy resisted sprint training. J. Strength Cond. Res. 2021. (In Press) [Google Scholar] [CrossRef]
- Linthorne, N.P.; Cooper, J.E. Effect of the coefficient of friction of a running surface on sprint time in a sled-towing exercise. Sports Biomech. 2013, 12, 175–185. [Google Scholar] [CrossRef] [Green Version]
- Fyfe, J.J.; Loenneke, J.P. Interpreting adaptation to concurrent compared with single-mode exercise training: Some methodological considerations. Sports Med. 2018, 48, 289–297. [Google Scholar] [CrossRef]
- Field, A. Discovering Statistics Using IBM SPSS Statistics; Sage: Thousand Oaks, CA, USA, 2017. [Google Scholar]
- Magezi, D.A. Linear mixed-effects models for within-participant psychology experiments: An introductory tutorial and free, graphical user interface (LMMgui). Front. Psychol. 2015, 6, e2. [Google Scholar] [CrossRef] [Green Version]
- Arampatzis, A.; Schade, F.; Walsh, M.; Brüggemann, G.P. Influence of leg stiffness and its effect on myodynamic jumping performance. J. Electromyogr. Kinesiol. 2001, 11, 355–364. [Google Scholar] [CrossRef]
- Korff, T.; Horne, S.L.; Cullen, S.J.; Blazevich, A.J. Development of lower limb stiffness and its contribution to maximum vertical jumping power during adolescence. J. Exp. Biol. 2009, 212, 3737–3742. [Google Scholar] [CrossRef] [Green Version]
- Maloney, S.J.; Richards, J.; Nixon, D.G.; Harvey, L.J.; Fletcher, I.M. Do stiffness and asymmetries predict change of direction performance? J. Sports Sci. 2017, 35, 547–556. [Google Scholar] [CrossRef] [Green Version]
- Seynnes, O.R.; de Boer, M.; Narici, M.V. Early skeletal muscle hypertrophy and architectural changes in response to high-intensity resistance training. J. Appl. Physiol. 2007, 102, 368–373. [Google Scholar] [CrossRef]
Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | |
---|---|---|---|---|---|---|---|
am | Gym | Gym | Off | Gym | Match | Off | |
pm | Match review session | Technical session | Technical session | Technical session |
Monday (Full Body Strength) | ||||
---|---|---|---|---|
Week 1 | Week 2 | Week 3 | Week 4 | |
Exercise | Sets × repetitions | |||
Pistol squats | 3 × 6 | 3 × 6 | 3 × 6 | 3 × 6 |
SB curls | 3 × 6 | 3 × 6 | 3 × 6 | 3 × 6 |
Military press | 4 × 8 | 4 × 8 | 4 × 8 | 4 × 8 |
Weighted pull up | 4 × 8 | 4 × 8 | 4 × 8 | 4 × 8 |
Banded walks | 3 × 5 m | 3 × 5 m | 3 × 5 m | 3 × 5 m |
Bench bridges | 3 × 8 | 3 × 8 | 3 × 8 | 3 × 8 |
Roll outs | 4 × 6 | 4 × 6 | 4 × 6 | 4 × 6 |
YTV | 4 × 4 | 4 × 4 | 4 × 4 | 4 × 4 |
Tuesday (full body strength) | ||||
Week 1 | Week 2 | Week 3 | Week 4 | |
Exercise | Sets × repetitions | |||
Sprints (sled or sprint group) | 9 × 20 m | 9 × 20 m | 9 × 20 m | 9 × 20 m |
Squats | 4 × 8 | 4 × 8 | 4 × 8 | 4 × 8 |
Lateral lunges | 4 × 4 | 4 × 4 | 4 × 4 | 4 × 4 |
Dumbbell bench | 4 × 8 | 4 × 8 | 4 × 8 | 4 × 8 |
Bent over row | 4 × 8 | 4 × 8 | 4 × 8 | 4 × 8 |
Reverse fly’s | 4 × 10 | 4 × 10 | 4 × 10 | 4 × 10 |
Box step up’s | 3 × 6 | 3 × 6 | 3 × 6 | 3 × 6 |
RDLS | 3 × 6 | 3 × 6 | 3 × 6 | 3 × 6 |
Thursday (full body power) | ||||
Week 1 | Week 2 | Week 3 | Week 4 | |
Exercise | Sets × repetitions | |||
Sprints (sled or sprint group) | 9 × 20 m | 9 × 20 m | 9 × 20 m | 9 × 20 m |
Drop snatch | 4 × 5 | 4 × 5 | 4 × 5 | 4 × 5 |
Squat jumps | 4 × 5 | 4 × 5 | 4 × 5 | 4 × 5 |
SL box drives | 4 × 6 | 4 × 6 | 4 × 6 | 4 × 6 |
Medicine ball slams | 5 × 6 | 5 × 6 | 5 × 6 | 5 × 6 |
Bench throws | 5 × 6 | 5 × 6 | 5 × 6 | 5 × 6 |
Hanging leg raises | 5 × 4 | 5 × 4 | 5 × 4 | 5 × 4 |
Sprint | Sled | |
---|---|---|
N (completed) | 13 | 13 |
Age (y) | 18.7 ± 0.6 | 18.9 ± 0.5 |
Stature (cm) | 182.5 ± 6.1 | 181.8 ± 5.1 |
Body mass (kg) | 89.5 ± 11.4 | 85.7 ± 11.5 |
BMI (kg/m2) | 26.8 ± 2.4 | 25.9 ± 2.7 |
Sprint | Sled | Difference from Baseline | Difference between Groups | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Baseline | 4-Weeks | 8-Weeks | Baseline | 4-Weeks | 8-Weeks | 4-Weeks | 8-Weeks | 4-Weeks | 8-Weeks | |||||||
Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||||
5 m sprint (s) | 1.02 | 0.06 | 1.00 | 0.07 | 0.99 | 0.06 | 1.03 | 0.07 | 1.00 | 0.05 | 0.97 | 0.08 | * | * | ||
10 m sprint (s) | 1.76 | 0.08 | 1.74 | 0.08 | 1.74 | 0.07 | 1.77 | 0.06 | 1.74 | 0.08 | 1.70 | 0.06 | * | * | ||
20 m sprint (s) | 3.03 | 0.12 | 3.01 | 0.11 | 2.99 | 0.11 | 3.01 | 0.10 | 2.97 | 0.10 | 2.94 | 0.11 | * | * | ||
CMJ (cm) | 39.18 | 6.59 | 39.34 | 6.70 | 39.49 | 6.75 | 40.43 | 3.87 | 42.02 | 5.18 | 43.07 | 4.55 | * | * | * | |
505 (s) | 2.45 | 0.07 | 2.44 | 0.07 | 2.42 | 0.06 | 2.43 | 0.11 | 2.40 | 0.08 | 2.37 | 0.06 | * | * |
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Sinclair, J.; Edmundson, C.J.; Metcalfe, J.; Bottoms, L.; Atkins, S.; Bentley, I. The Effects of Sprint vs. Resisted Sled-Based Training; an 8-Week in-Season Randomized Control Intervention in Elite Rugby League Players. Int. J. Environ. Res. Public Health 2021, 18, 9241. https://doi.org/10.3390/ijerph18179241
Sinclair J, Edmundson CJ, Metcalfe J, Bottoms L, Atkins S, Bentley I. The Effects of Sprint vs. Resisted Sled-Based Training; an 8-Week in-Season Randomized Control Intervention in Elite Rugby League Players. International Journal of Environmental Research and Public Health. 2021; 18(17):9241. https://doi.org/10.3390/ijerph18179241
Chicago/Turabian StyleSinclair, Jonathan, Christopher James Edmundson, John Metcalfe, Lindsay Bottoms, Stephen Atkins, and Ian Bentley. 2021. "The Effects of Sprint vs. Resisted Sled-Based Training; an 8-Week in-Season Randomized Control Intervention in Elite Rugby League Players" International Journal of Environmental Research and Public Health 18, no. 17: 9241. https://doi.org/10.3390/ijerph18179241