Effects of Stretching on Peak Torque and the H : Q Ratio

Abstract

The purpose of the present study was to examine the acute effects of hamstring and calf stretching on leg extension and flexion peak torque (PT) and the hamstrings-to-quadriceps (H : Q) ratio during maximal, concentric isokinetic muscle actions at 60, 180, and 300° · s⁻¹ in women. Thirteen women (mean age ± SD = 20.8 ± 1.8 yrs; height = 163.0 ± 5.7 cm; mass = 64.0 ± 8.3 kg) performed 3 maximal concentric isokinetic leg extension and flexion muscle actions at 3 randomly ordered angular velocities (60, 180, and 300° · s⁻¹) before and after a bout of static stretching. The stretching protocol consisted of 1 unassisted and 3 assisted static stretching exercises designed to stretch the posterior muscles of the thigh and leg. Four repetitions of each stretch were held for 30 s with 20 s rest between repetitions. The results indicated that leg flexion PT decreased from pre- to post-stretching (34.9 ± 3.5 and 32.4 ± 3.2 Nm, respectively) collapsed across velocity. However, no other changes were observed from pre- to post-stretching for leg extension PT (78.5 ± 5.9 and 77.8 ± 5.5 Nm, respectively) and the H : Q ratio (0.47 ± 0.04 and 0.44 ± 0.03, respectively). Our findings suggested that despite the stretching-induced decreases in leg flexion PT, leg extension PT and the H : Q ratios were unaltered by the stretching.

Key words

stretching‐induced - strength - muscle strain - muscle injury - knee injury - injury risk

References

• 1 Aagaard P, Simonsen E B, Andersen J L, Magnusson S P, Bojsen-Moller F, Dyhre-Poulsen P. Antagonist muscle coactivation during isokinetic knee extension.  Scand J Med Sci Sports. 2000;  10 58-67
• 2 Aagaard P, Simonsen E B, Magnusson S P, Larsson B, Dyhre-Poulsen P. A new concept for isokinetic hamstring: quadriceps muscle strength ratio.  Am J Sports Med. 1998;  26 231-237
• 3 Agre J C. Hamstring injuries. Proposed aetiological factors, prevention, and treatment.  Sports Med. 1985;  2 21-33
• 4 Ahmad C S, Clark A M, Heilmann N, Schoeb J S, Gardner T R, Levine W N. Effect of gender and maturity on quadriceps-to-hamstring strength ratio and anterior cruciate ligament laxity.  Am J Sports Med. 2006;  34 370-374
• 5 Alpkaya U, Koceja D. The effects of acute static stretching on reaction time and force.  J Sports Med Phys Fitness. 2007;  47 147-150
• 6 American College of Sports Medicine .ACSM's Guidelines for Exercise Testing and Prescription. 6th edn. Philadelphia; Lippincott Williams & Wilkins 2000
• 7 Arendt E, Dick R. Knee injury patterns among men and women in collegiate basketball and soccer. NCAA data and review of literature.  Am J Sports Med. 1995;  23 694-701
• 8 Armstrong R B, Duan C, Delp M D, Hayes D A, Glenn G M, Allen G D. Elevations in rat soleus muscle [Ca2+] with passive stretch.  J Appl Physiol. 1993;  74 2990-2997
• 9 Baumgartner T A, Hensley L D. Conducting and Reading Research in Health and Human Performance. 4th edn. New York; McGraw-Hill 2006
• 10 Behm D G, Bambury A, Cahill F, Power K. Effect of acute static stretching on force, balance, reaction time, and movement time.  Med Sci Sports Exerc. 2004;  36 1397-1402
• 11 Behm D G, Button D C, Butt J C. Factors affecting force loss with prolonged stretching.  Can J Appl Physiol. 2001;  26 261-272
• 12 Bixler B, Jones R L. High-school football injuries: effects of a post-halftime warm-up and stretching routine.  Fam Pract Res J. 1992;  12 131-139
• 13 Blair S, Kohl H WI, Goodyear N. Relative risks for running and exercise injuries: studies in three populations.  Research Quarterly. 1987;  58 221-228
• 14 Brown L E, Whitehurst M, Gilbert R, Buchalter D N. The effect of velocity and gender on load range during knee extension and flexion exercise on an isokinetic device.  J Orthop Sports Phys Ther. 1995;  21 107-112
• 15 Brunet M E, Cook S D, Brinker M R, Dickinson J A. A survey of running injuries in 1505 competitive and recreational runners.  J Sports Med Phys Fitness. 1990;  30 307-315
• 16 Clanton T O, Coupe K J. Hamstring strains in athletes: diagnosis and treatment.  J Am Acad Orthop Surg. 1998;  6 237-248
• 17 Colliander E B, Tesch P A. Bilateral eccentric and concentric torque of quadriceps and hamstring muscles in females and males.  Eur J Appl Physiol. 1989;  59 227-232
• 18 Coombs R, Garbutt G. Developments in the use of the hamstring/quadriceps ratio for the assessment of muscle balance.  J Sports Sci Med. 2002;  1 56-62
• 19 Cramer J T, Beck T W, Housh T J, Massey L L, Marek S M, Danglemeier S, Purkayastha S, Culbertson J Y, Fitz K A, Egan A D. Acute effects of static stretching on characteristics of the isokinetic angle – torque relationship, surface electromyography, and mechanomyography.  J Sports Sci. 2007;  25 687-698
• 20 Cramer J T, Housh T J, Evetovich T K, Johnson G O, Ebersole K T, Perry S R, Bull A J. The relationships among peak torque, mean power output, mechanomyography, and electromyography in men and women during maximal, eccentric isokinetic muscle actions.  Eur J Appl Physiol. 2002;  86 226-232
• 21 Cramer J T, Housh T J, Johnson G O, Miller J M, Coburn J W, Beck T W. Acute effects of static stretching on peak torque in women.  J Strength Cond Res. 2004;  18 236-241
• 22 Cramer J T, Housh T J, Johnson G O, Weir J P, Beck T W, Coburn J W. An acute bout of static stretching does not affect maximal eccentric isokinetic peak torque, the joint angle at peak torque, mean power, electromyography, or mechanomyography.  J Orthop Sports Phys Ther. 2007;  37 130-139
• 23 Cramer J T, Housh T J, Weir J P, Johnson G O, Coburn J W, Beck T W. The acute effects of static stretching on peak torque, mean power output, electromyography, and mechanomyography.  Eur J Appl Physiol. 2005;  93 530-539
• 24 Croisier J L, Forthomme B, Namurois M H, Vanderthommen M, Crielaard J M. Hamstring muscle strain recurrence and strength performance disorders.  Am J Sports Med. 2002;  30 199-203
• 25 Crone C. Reciprocal inhibition in man.  Dan Med Bull. 1993;  40 571-581
• 26 Devan M R, Pescatello L S, Faghri P, Anderson J. A prospective study of overuse knee injuries among female athletes with muscle imbalances and structural abnormalities.  J Athl Train. 2004;  39 263-267
• 27 Drezner J A. Practical management: hamstring muscle injuries.  Clin J Sport Med. 2003;  13 48-52
• 28 Egan A D, Cramer J T, Massey L L, Marek S M. Acute effects of static stretching on peak torque and mean power output in National Collegiate Athletic Association Division I women's basketball players.  J Strength Cond Res. 2006;  20 778-782
• 29 Ekstrand J, Gillquist J, Liljedahl S O. Prevention of soccer injuries. Supervision by doctor and physiotherapist.  Am J Sports Med. 1983;  11 116-120
• 30 Ekstrand J, Gillquist J, Moller M, Oberg B, Liljedahl S O. Incidence of soccer injuries and their relation to training and team success.  Am J Sports Med. 1983;  11 63-67
• 31 Evetovich T K, Nauman N J, Conley D S, Todd J B. Effect of static stretching of the biceps brachii on torque, electromyography, and mechanomyography during concentric isokinetic muscle actions.  J Strength Cond Res. 2003;  17 484-488
• 32 Fowles J R, Sale D G, MacDougall J D. Reduced strength after passive stretch of the human plantarflexors.  J Appl Physiol. 2000;  89 1179-1188
• 33 Glick J M. Muscle strains: prevention and treatment.  Physician Sportsmed. 1980;  8 73-77
• 34 Heiser T M, Weber J, Sullivan G, Clare P, Jacobs R R. Prophylaxis and management of hamstring muscle injuries in intercollegiate football players.  Am J Sports Med. 1984;  12 368-370
• 35 Herda T J, Cramer J T, Ryan E D, McHugh M P, Stout J R. Acute effects of static versus dynamic stretching on isometric peak torque, electromyography, and mechanomyography of the biceps femoris muscle.  J Strength Cond Res. 2008;  22 809-817
• 36 Holcomb W R. Stretching and warm-up. Baechle T, Earle R Essentials of Strength Training and Conditioning. Champaign; Human Kinetics 2000: 321-342
• 37 Holcomb W R, Rubley M D, Lee H J, Guadagnoli M A. Effect of hamstring-emphasized resistance training on hamstring : quadriceps strength ratios.  J Strength Cond Res. 2007;  21 41-47
• 38 Hoskins W, Pollard H. The management of hamstring injury – part 1: issues in diagnosis.  Man Ther. 2005;  10 96-107
• 39 Howell D W. Musculoskeletal profile and incidence of musculoskeletal injuries in lightweight women rowers.  Am J Sports Med. 1984;  12 278-282
• 40 Ireland M L. Anterior cruciate ligament injury in female athletes: epidemiology.  J Athl Train. 1999;  34 150-154
• 41 Jacobs S J, Berson B L. Injuries to runners: a study of entrants to a 10 000 meter race.  Am J Sports Med. 1986;  14 151-155
• 42 Jenkins W L, Killian C B, Williams 3rd D S. Anterior cruciate ligament injury in female and male athletes: the relationship between foot structure and injury.  J Am Podiatr Med Assoc. 2007;  97 371-376
• 43 Kerner J A, D'Amico J C. A statistical analysis of a group of runners.  J Am Podiatry Assoc. 1983;  73 160-164
• 44 Knapik J J, Bauman C L, Jones B H, Harris J M, Vaughan L. Preseason strength and flexibility imbalances associated with athletic injuries in female collegiate athletes.  Am J Sports Med. 1991;  19 76-81
• 45 Knapik J J, Jones B H, Bauman C L, Harris J M. Strength, flexibility and athletic injuries.  Sports Med. 1992;  14 277-288
• 46 Kokkonen J, Nelson A G, Cornwell A. Acute muscle stretching inhibits maximal strength performance.  Res Q Exerc Sport. 1998;  69 411-415
• 47 Little T, Williams A G. Effects of differential stretching protocols during warm-ups on high-speed motor capacities in professional soccer players.  J Strength Cond Res. 2006;  20 203-207
• 48 Macera C A, Pate R R, Powell K E, Jackson K L, Kendrick J S, Craven T E. Predicting lower-extremity injuries among habitual runners.  Arch Intern Med. 1989;  149 2565-2568
• 49 Magnusson S P, Simonsen E B, Aagaard P, Kjaer M. Biomechanical responses to repeated stretches in human hamstring muscle in vivo.  Am J Sports Med. 1996;  24 622-628
• 50 Malliaropoulos N, Papalexandris S, Papalada A, Papacostas E. The role of stretching in rehabilitation of hamstring injuries: 80 athletes follow-up.  Med Sci Sports Exerc. 2004;  36 756-759
• 51 McHugh M P, Magnusson S P, Gleim G W, Nicholas J A. Viscoelastic stress relaxation in human skeletal muscle.  Med Sci Sports Exerc. 1992;  24 1375-1382
• 52 Nelson A G, Driscoll N M, Landin D K, Young M A, Schexnayder I C. Acute effects of passive muscle stretching on sprint performance.  J Sports Sci. 2005;  23 449-454
• 53 Nosse L. Assessment of selected reports on the strength relationship of the knee musculature.  J Orthop Sports Phys Ther. 1982;  4 78-85
• 54 Ogura Y, Miyahara Y, Naito H, Katamoto S, Aoki J. Duration of static stretching influences muscle force production in hamstring muscles.  J Strength Cond Res. 2007;  21 788-792
• 55 Orchard J, Marsden J, Lord S, Garlick D. Preseason hamstring muscle weakness associated with hamstring muscle injury in Australian footballers.  Am J Sports Med. 1997;  25 81-85
• 56 Perrine J J, Edgerton V R. Muscle force-velocity and power-velocity relationships under isokinetic loading.  Med Sci Sports. 1978;  10 159-166
• 57 Powell J W, Barber-Foss K D. Sex-related injury patterns among selected high school sports.  Am J Sports Med. 2000;  28 385-391
• 58 Rosenbaum D, Hennig E M. The influence of stretching and warm-up exercises on Achilles tendon reflex activity.  J Sports Sci. 1995;  13 481-490
• 59 Rosene J M, Fogarty T D, Mahaffey B L. Isokinetic hamstrings: quadriceps ratios in intercollegiate athletes.  J Athl Train. 2001;  36 378-383
• 60 Rubini E C, Costa A L, Gomes P S. The effects of stretching on strength performance.  Sports Med. 2007;  37 213-224
• 61 Ryan E D, Beck T W, Herda T J, Hull H R, Hartman M J, Stout J R, Cramer J T. Do practical durations of stretching alter plantar flexion strength? A dose-response study.  Med Sci Sports Exerc. 2008; 
• 62 Shellock F G, Prentice W E. Warming-up and stretching for improved physical performance and prevention of sports-related injuries.  Sports Med. 1985;  2 267-278
• 63 Sherry M A, Best T M. A comparison of 2 rehabilitation programs in the treatment of acute hamstring strains.  J Orthop Sports Phys Ther. 2004;  34 116-125
• 64 Shrier I. Stretching before exercise does not reduce the risk of local muscle injury: a critical review of the clinical and basic science literature.  Clin J Sport Med. 1999;  9 221-227
• 65 Siatras T, Papadopoulos G, Mameletzi D, Gerodimos V, Kellis S. Static and dynamic acute stretching effect on gymnasts' speed in vaulting.  Pediatr Exerc Sci. 2003;  15 383-391
• 66 Stamford B. Flexibility and stretching.  Physician Sportsmed. 1984;  12 171
• 67 Thacker S B, Gilchrist J, Stroup D F, Kimsey Jr C D. The impact of stretching on sports injury risk: a systematic review of the literature.  Med Sci Sports Exerc. 2004;  36 371-378
• 68 Vincent W J. Statistics in Kinesiology. 3rd edn. Champaign; Human Kinetics 2005
• 69 Wallmann H W, Mercer J A, McWhorter J W. Surface electromyographic assessment of the effect of static stretching of the gastrocnemius on vertical jump performance.  J Strength Cond Res. 2005;  19 684-688
• 70 Walter S D, Hart L E, McIntosh J M, Sutton J R. The Ontario cohort study of running-related injuries.  Arch Intern Med. 1989;  149 2561-2564
• 71 Weir D E, Tingley J, Elder G C. Acute passive stretching alters the mechanical properties of human plantar flexors and the optimal angle for maximal voluntary contraction.  Eur J Appl Physiol. 2005;  93 614-623
• 72 Weldon S M, Hill R H. The efficacy of stretching for prevention of exercise-related injury: a systematic review of the literature.  Man Ther. 2003;  8 141-150
• 73 Whiting W C, Zernicke R F. Biomechanics of Musculoskeletal Injury. Champaign; Human Kinetics 1998
• 74 Wilber C A, Holland G J, Madison R E, Loy S F. An epidemiological analysis of overuse injuries among recreational cyclists.  Int J Sports Med. 1995;  16 201-206
• 75 Woods K, Bishop P, Jones E. Warm-up and stretching in the prevention of muscular injury.  Sports Med. 2007;  37 1089-1099
• 76 Yamaguchi T, Ishii K. Effects of static stretching for 30 seconds and dynamic stretching on leg extension power.  J Strength Cond Res. 2005;  19 677-683