A Comparison of Rowing Technique at Different Stroke Rates: A Description of Sequencing, Force Production and Kinematics

Abstract

Low back pain is the commonest musculoskeletal complaint in rowers. Research into the relationship between rowing technique, the forces generated during the rowing stroke and the kinematics of spinal motion are increasing, but to date none have investigated the impact of different rowing intensities on this relationship. A technique has been developed using an electromagnetic motion system and strain gauge instrumented load cell to measure spinal and pelvic motion and force generated at the handle during rowing on an exercise rowing ergometer. Using this technique ten collegiate male rowers (mean age 22.1 ± 2.8 years) from local rowing clubs were investigated. The test protocol consisted of rowing on an ergometer at three different stroke ratings; 17 - 20 strokes per minute; 24 - 28 strokes per minute; and 28 - 36 strokes per minute. Each rating was held for four minutes, with a five-minute rest between each rating. Marked changes in the force output curve and lumbopelvic kinematics were observed at the different rowing intensities. Although there was no change in the magnitude of peak torque generated during the different rating, there was a marked shift in when this occurred during the stroke. In terms of kinematic changes, these centred around changes in pelvic rotation at the catch and finish stages of the stroke with significantly less anterior rotation occurring at the catch position at higher rowing intensities. To conclude, this study suggests that rowing kinematics and force profiles do change at higher rowing intensities. These changes may be an important factor with respect to injury mechanisms, however, further work is required at an elite level.

Key words

Rowing kinematics - spinal kinematics - technique and intensity

References

• 1 Baudouin A, Hawkins D. A biomechanical review of factors affecting rowing performance.  Br J Sports Med. 2002;  36 396-402
• 2 Bull A MJ, McGregor A H. Measuring spinal motion in rowers: the use of an electromagnetic device.  Clin Biomech. 2000;  15 772-776
• 3 Christiansen E, Kanstrup I L. Increased risk of stress fractures of the ribs in elite rowers.  Scand J Med Sci Sports. 1997;  7 49-52
• 4 Hartmann U, Mader A, Wasser K, Klauer I. Peak force, velocity, and power during five and ten maximal rowing ergometer strokes by world class female and male rowers.  Int J Sports Med. 1993;  14 42-45
• 5 Hawkins D. A new instrumentation system for training rowers.  J Biomech. 2000;  33 241-245
• 6 Henry J C, Clark R R, McCabe R P, Vanderby Jr R. An evaluation of instrumented tank rowing for objective assessment of rowing performance.  J Sports Sci. 1995;  13 199-206
• 7 Hickey G J, Fricker P A, McDonald W A. Injuries to elite rowers over a ten year period.  Med Sci Sports Exerc. 1997;  29 1567-1572
• 8 Holt P JE, Bull A MJ, Cashman P MM, McGregor A H. Rowing technique: the influence of fatigue on anteroposterior movements and force production.  Int J Sport Med. 2003;  24 597-602
• 9 Hosea T M, Boland A L, McCarthy K, Kennedy T. Rowing injuries.  Postgrad Adv Sports Med. 1989;  3 1-16
• 10 Howell D W. Musculoskeletal profile and incidence of musculoskeletal injuries in lightweight women rowers.  Am J Sports Med. 1984;  12 278-282
• 11 Jull G A, Janda V. Muscles and motor control in LBP: Assessment and management. Twomey LT Physiotherapy of the Low Back. New York; Churchill Livingstone 1987: 253-279
• 12 Lamb D H. A kinematic comparison of ergometer and on-water rowing.  Am J Sports Med. 1989;  17 367-373
• 13 MacFarlane D J, Edmond I M, Walmsley A. Instrumentation of an ergometer to monitor the reliability of rowing performance.  J Sports Med. 1997;  15 167-173
• 14 Martin T P, Bernfield J S. Effect of stroke rate on velocity of a rowing shell.  Med Sci Sports Exerc. 1980;  12 250-256
• 15 McGregor A H, Anderton L, Gedroyc W MW. The assessment of intersegmental motion and pelvic tilt in elite oarsmen using interventional magnetic resonance imaging.  Med Sci Sports Exerc. 2002;  34 1143-1149
• 16 O'Sullivan F, O'Sullivan J, Bull A MJ, McGregor A H. Modelling multivariate biomechanical measurements of the spine during a rowing exercise.  Clin Biomech. 2003;  18 488-493
• 17 Roy S H, De Luca C J, Snyder-Mackler L, Emley M S, Crenshaw R L, Lyons J P. Fatigue, recovery and LBP in varsity rowers.  Med Sci Sports Exerc. 1990;  22 463-469
• 18 Shiang T-Y, Tsai C-B. The kinetic characteristics of rowing movements. Haake SJ The Engineering in Sport. Cambridge; Blackwell Science 1998: 219-224
• 19 Smith R M, Spinks W L. Discriminate analysis of biomechanical differences between novice, good and elite rowers.  J Sports Sci. 1995;  13 377-385
• 20 Stallard M C. Backache in oarsmen.  Br J Sports Med. 1980;  14 105-108
• 21 Timm K E. Sacroiliac joint dysfunction in elite rowers.  J Orthop Sports Phys Ther. 1999;  29 288-293
• 22 Wajswelner H, Bennell K, Story I, Mckeenan J. Muscle action and stress on the ribs in rowing.  Phys Ther Sport. 2000;  1 75-84
• 23 Wing A M, Woodburn C. The coordination and consistency of rowers in a racing eight.  J Sports Sci. 1995;  13 187-197