Purpose: The purpose of this study was to compare progressive resistance and submaximal cycling protocols to determine which of the two should be considered a more effective paradigm for patients with spinal cord injury (SCI). The essential definition of an “effective” cycling paradigm is one that delays the onset of fatigue as indicated by measurable or computable cycling parameters. These parameters include stimulation intensity, cycling time, cadence, joint power output, and heart rate. It was hypothesized that stimulation intensity and joint power output would be higher for progressive resistance cycling, whereas cycling time, cadence, and heart rate would be higher for submaximal cycling. Method: Six spinal cord—injured persons participated in this study. Kinematic data and pedal forces were recorded at regular intervals during both exercise paradigms. Results: Stimulation levels remained lower and cadence was maintained longer during submaximal riding, indicating less fatigue than during progressive cycling. Ankle and knee power outputs were also higher than those observed during progressive cycling. Conclusion: Based on the parameters outlined in this study, submaximal cycling promoted lower fatigue rates and a greater success of maintaining constant cadence and was therefore considered a more effective protocol for SCI riders. However, a hybrid protocol incorporating both strength and endurance training may be even more beneficial.

Gerrits HL, Hopman MTE, Offringa C, Engelen BG, Sargeant AJ, Jones DA, Haan A. Variability in fibre properties in paralyzed human quadriceps muscles and effects of training. Eur J Physiol. 2003;445:734–740.
,
Variability in fibre properties in paralyzed human quadriceps muscles and effects of training
,
Eur J Physiol
, vol.
445
(pg.
734
-
740
)
Crameri RM, Weston A, Climstein M, Davis GM, Sutton JR. Effects of electrical stimulation-induced leg training on skeletal muscle adaptability in spinal cord injury. Scand J Med Sci Sports. 2002;12:316–322.
,
Effects of electrical stimulation-induced leg training on skeletal muscle adaptability in spinal cord injury
,
Scand J Med Sci Sports
, vol.
12
(pg.
316
-
322
)
Petrofsky JS, Stacy R, Laymon M. The relationship between exercise work intervals and duration of exercise on lower extremity training induced by electrical stimulation in humans with spinal cord injuries. Eur J Appl Physiol. 2000;82(5-6):504–509.
,
The relationship between exercise work intervals and duration of exercise on lower extremity training induced by electrical stimulation in humans with spinal cord injuries
,
Eur J Appl Physiol
, vol.
82
(pg.
504
-
509
)
Hooker SP, Figoni SF, Glaser RM, Rodgers MM, Ezenwa BN, Faghri PD. Physiologic responses to prolonged electrically stimulated leg-cycle exercise in the spinal cord injured. Arch Phys Med Rehabil. 1990;71(11):863–869.
,
Physiologic responses to prolonged electrically stimulated leg-cycle exercise in the spinal cord injured
,
Arch Phys Med Rehabil
, vol.
71
(pg.
863
-
869
)
Belanger M, Stein RB, Wheeler GD, Gordon T, Leduc B. Electrical stimulation: can it increase muscle strength and reverse ostopenia in spinal cord injured individuals? Arch Phys Med Rehabil. 2000;81(8):1090–1098.
,
Electrical stimulation: can it increase muscle strength and reverse ostopenia in spinal cord injured individuals?
,
Arch Phys Med Rehabil
, vol.
81
(pg.
1090
-
1098
)
Mohr T, Podenphant J, Biering-Sorensen F, Galbo H, Thamsborg G, Kjaer M. Increased bone mineral density after prolonged electrically induced cycle training of paralyzed limbs in spinal cord injured man. Calcif Tissue Int. 1997;61(1):22–25.
,
Increased bone mineral density after prolonged electrically induced cycle training of paralyzed limbs in spinal cord injured man
,
Calcif Tissue Int.
, vol.
61
(pg.
22
-
25
)
Hangartner TN, Rodgers MM, Glaser RM, Barre PS. Tibial bone density loss in spinal cord injured patients: effects of FES exercise. J Rehabil Res Dev. 1994;31(1):50–61.
,
Tibial bone density loss in spinal cord injured patients: effects of FES exercise
,
J Rehabil Res Dev.
, vol.
31
(pg.
50
-
61
)
Thijssen DH, Ellenkamp R, Smits P, Hopman MT. Rapid vascular adaptations to training and detraining in persons with spinal cord injury. Arch Phys Med Rehabil. 2006;87(4):474–481.
,
Rapid vascular adaptations to training and detraining in persons with spinal cord injury
,
Arch Phys Med Rehabil
, vol.
87
(pg.
474
-
481
)
Chilibeck PD, Weiss JJC, Bell G, Burnham R. Histochemical changes in muscle of individuals with spinal cord injury following functional electrical stimulated exercise training. Spinal Cord. 1999;37:264–268.
,
Histochemical changes in muscle of individuals with spinal cord injury following functional electrical stimulated exercise training
,
Spinal Cord
, vol.
37
(pg.
264
-
268
)
Franco JC, Perell KL, Gregor RJ, Scremin AME. Knee kinetics during functional electrical stimulation induced cycling in subjects with spinal cord injury: a preliminary study. J Rehabil Res Dev. 1999;36(3):207–216.
,
Knee kinetics during functional electrical stimulation induced cycling in subjects with spinal cord injury: a preliminary study
,
J Rehabil Res Dev.
, vol.
36
(pg.
207
-
216
)
Chilibeck PD, Bell G, Jeon J, Weiss CB, Murdoch G, MacLean I, Ryan E, Burnham R. Functional electrical stimulation exercise increases GLUT-a and GLUT-4 in paralyzed skeletal muscle. Metabolism. 1999;48(11):1409–1413.
,
Functional electrical stimulation exercise increases GLUT-a and GLUT-4 in paralyzed skeletal muscle
,
Metabolism
, vol.
48
(pg.
1409
-
1413
)
Szecsi J, Fornusek C, Krause P, Straube A. Low-frequency rectangular pulse is superior to middle frquency alternating current stimulation in cycling people with spinal cord injury. Arch Phys Med Rehabil. 2007;88:338–345.
,
Low-frequency rectangular pulse is superior to middle frquency alternating current stimulation in cycling people with spinal cord injury
,
Arch Phys Med Rehabil
, vol.
88
(pg.
338
-
345
)
Forusek C, Davis GM. Maximizing muscle force via low-cadence functional electrical stimulation cycling. J Rehabil Med. 2004;36:232–237.
,
Maximizing muscle force via low-cadence functional electrical stimulation cycling
,
J Rehabil Med.
, vol.
36
(pg.
232
-
237
)
Gerrits HL, de Haan A, Sargeant AJ, Dallmeijer A, Hopman MTE. Altered contractile properties of the quadriceps muscles in people with spinal cord injury following functional electrical stimulated cycle training. Spinal Cord. 2000;38:214–223.
,
Altered contractile properties of the quadriceps muscles in people with spinal cord injury following functional electrical stimulated cycle training
,
Spinal Cord
, vol.
38
(pg.
214
-
223
)
Pollack SF, Axen K, Spielholz N, Levin N, Haas F, Ragnarsson KT. Aerobic training effects of electrically induced lower extremity exercises in spinal cord injured people. Arch Phys Med Rehabil. 1989;70(3):214–219.
,
Aerobic training effects of electrically induced lower extremity exercises in spinal cord injured people
,
Arch Phys Med Rehabil
, vol.
70
(pg.
214
-
219
)
Theisen DF. External power output changes during prolonged cycling with electrical stmulation. J Rehabil Med. 2002;34:171–175.
,
External power output changes during prolonged cycling with electrical stmulation
,
J Rehabil Med.
, vol.
34
(pg.
171
-
175
)
Ericson M. Mechanical muscular power output and work during ergometer cycling at different work loads and speeds. Eur J Appl Physiol. 1988;57:382–387.
,
Mechanical muscular power output and work during ergometer cycling at different work loads and speeds
,
Eur J Appl Physiol
, vol.
57
(pg.
382
-
387
)
Ericson M. On the biomechanics of cycling. A study of joint and muscle load during exercise on the bicycle ergometer. Scand J Rehabil Med. 1986;Suppl 16.
,
On the biomechanics of cycling. A study of joint and muscle load during exercise on the bicycle ergometer
,
Scand J Rehabil Med.
Thomas CK. Fatigue in human thenar muscles paralyzed by spinal cord injury. J Electromyogr Kinesiol. 1997;7(1):15–26.
,
Fatigue in human thenar muscles paralyzed by spinal cord injury
,
J Electromyogr Kinesiol
, vol.
7
(pg.
15
-
26
)
Haapala SA, Faghri PD, Adams, DJ. Lower leg joint power output during progressive resistance cycling in SCI subjects: developing an index of fatigue. J NeuroEng Rehabil. 2008;5(14).
,
Lower leg joint power output during progressive resistance cycling in SCI subjects: developing an index of fatigue
,
J NeuroEng Rehabil.
, vol.
5
Merletti R, Knaflitz M, De Luca CJ. Myoelectric minifestations of fatigue in voluntary and electrically elicited contractions. J Appl Phyiol. 1990;69(5):1810–1820
,
Myoelectric minifestations of fatigue in voluntary and electrically elicited contractions
,
J Appl Phyiol
, vol.
69
(pg.
1810
-
1820
)
Reiss JA, Abbas JJ. Adaptive control of cyclic movements as muscles fatigue using functional neuromuscular stimulation. IEEE Trans Neural Sys Rehabil Eng. 2001;9(3):326–330.
,
Adaptive control of cyclic movements as muscles fatigue using functional neuromuscular stimulation
,
IEEE Trans Neural Sys Rehabil Eng.
, vol.
9
(pg.
326
-
330
)
Martin JC, Brown NA, Anderson FC, Spirduso WW. A governing relationship for repetitive muscular contraction. J Biomech. 2000;33:969–974.
,
A governing relationship for repetitive muscular contraction
,
J Biomech
, vol.
33
(pg.
969
-
974
)
Serway RA. Physics For Scientists and Engineers, 4th ed. San Francisco, CA: Saunders College Publishing; 1996.
,
Physics For Scientists and Engineers
Trumbower RD, Rajasekaran S, Faghri PD. Indentifying offline muscle strength profiles sufficient for short-duration FES-LCE exercise: a PAC learning model approach. J Clin Monit Comput. 2006;20(3):209–220.
,
Indentifying offline muscle strength profiles sufficient for short-duration FES-LCE exercise: a PAC learning model approach
,
J Clin Monit Comput.
, vol.
20
(pg.
209
-
220
)
Bratt A, Ericson MO. Biomechanical model for calculation of joint loads during ergometer cycling. TRITA-MEK-85-05. Technical Report from the Royal Institute of Technology, Stockholm, Sweden; 1985.
Trumbower RD, Faghri PD. Improving pedal power during semireclined leg cycling. IEEE Eng Med Biol. 2004;23(2):62–71.
,
Improving pedal power during semireclined leg cycling
,
IEEE Eng Med Biol
, vol.
23
(pg.
62
-
71
)
McDaniel J, Durstine JL, Hand GA, Martin JC. Determinants of metabolic cost during submaximal cycling. J Appl Physiol. 2002;93:823–828.
,
Determinants of metabolic cost during submaximal cycling
,
J Appl Physiol
, vol.
93
(pg.
823
-
828
)
Kjaer M, Mohr T, Dela F, Secher N, Galbo H, Olesen HL, Sørensen FB, Schifter S. Leg uptake of calitonin gene-related peptide during exercise in spinal cord injured humans. Clin Physiol. 2001;21(1):32–38.
,
Leg uptake of calitonin gene-related peptide during exercise in spinal cord injured humans
,
Clin Physiol
, vol.
21
(pg.
32
-
38
)
Kjear M, Pott F, Mohr T, Linkis P, Tornøe P, Secher NH. Heart rate during exercise with leg vascular occlusion in spinal cord-injured humans. J Appl Physiol. 1999;86(3):806–811.
,
Heart rate during exercise with leg vascular occlusion in spinal cord-injured humans
,
J Appl Physiol
, vol.
86
(pg.
806
-
811
)
Neptune RR, Herzog W. The association between negative muscle work and pedaling rate. J Biomech. 1999;32:1021–1026.
,
The association between negative muscle work and pedaling rate
,
J Biomech
, vol.
32
(pg.
1021
-
1026
)
Sarre G, Lepers R, Van Hoecke J. Stability of pedaling mechanics during a prolonged cycling exercise performed at different cadences. J Sports Sci. 2005;23(7):693–701.
,
Stability of pedaling mechanics during a prolonged cycling exercise performed at different cadences
,
J Sports Sci.
, vol.
23
(pg.
693
-
7
)
Sanderson DJ, Black A. The effect of prolonged cycling on pedal forces. J Sports Sci. 2003;21:191–199.
,
The effect of prolonged cycling on pedal forces
,
J Sports Sci.
, vol.
21
(pg.
191
-
199
)
Bhambhani Y, Tuchak C, Burnham R, Jeon J, Maikala R. Quadriceps muscle deoxygenation during functional electrical stimulation in adults with spinal cord injury. Spinal Cord. 2000;38:630–638.
,
Quadriceps muscle deoxygenation during functional electrical stimulation in adults with spinal cord injury
,
Spinal Cord
, vol.
38
(pg.
630
-
638
)
Faghri PD, Yount JP, Pesce WJ. Circulatory hypokinesis and functional electric stimulation during standing in persons with spinal cord injury. Arch Phys Med Rehabil. 2001;82:1587–1595.
,
Circulatory hypokinesis and functional electric stimulation during standing in persons with spinal cord injury
,
Arch Phys Med Rehabil
, vol.
82
(pg.
1587
-
1595
)
Faghri PD, Yount J. Electrically induced and voluntary activation of physiologic muscle pump: a comparison between spinal cord injured and able-bodied individuals. J Clin Rehabil. 2002; 16:878–885.
,
Electrically induced and voluntary activation of physiologic muscle pump: a comparison between spinal cord injured and able-bodied individuals
,
J Clin Rehabil
, vol.
16
(pg.
878
-
885
)
Raymond J, Davis GM, Van Der Plas MN, Groeller H, Simcox S. Carotid baroreflex control of heart rate and blood pressure during ES leg cycling in paraplegics. J Appl Physiol. 2000;88:957–965.
,
Carotid baroreflex control of heart rate and blood pressure during ES leg cycling in paraplegics
,
J Appl Physiol.
, vol.
88
(pg.
957
-
965
)
Stein RB, Gordon T, Jefferson J, Sharfenberger A, Yang JF, Totosy De Zepetnek J, Belanger M. Optimal stimulation of paralyzed muscle after human spinal cord injury. J Appl Physiol. 1992;72(4):1393–1400.
,
Optimal stimulation of paralyzed muscle after human spinal cord injury
,
J Appl Physiol.
, vol.
72
(pg.
1393
-
1400
)
Ericson MO, Nisell R, Arborelius UP, Ekholm J. Muscular activity during ergometer cycling. Scand J Rehab Med. 1985;17:53–61.
,
Muscular activity during ergometer cycling
,
Scand J Rehab Med.
, vol.
17
(pg.
53
-
61
)
Faghri, PD, Trumbower, R. Identifying offline muscle strength profile sufficient for shortduration FES-LCE: a PAC learning model approach. J Clin Monitoring Computing. 2006,20:209–220.
,
Identifying offline muscle strength profile sufficient for shortduration FES-LCE: a PAC learning model approach
,
J Clin Monitoring Computing
, vol.
20
(pg.
209
-
220
)
Faghri PD, Trumbower R. Short-duration FESinduced leg cycling dynamics at different stimulation intensities and flywheel resistances. Int Funct Elect Stim. 2005;10(8):241–243.
,
Short-duration FESinduced leg cycling dynamics at different stimulation intensities and flywheel resistances
,
Int Funct Elect Stim.
, vol.
10
(pg.
241
-
243
)
Trumbower R, Faghri PD. Kinematic analysis of recumbent leg cycling in able-bodied and spinal cord injured individuals. J Spinal Cord. 2005;43(9):543–549.
,
Kinematic analysis of recumbent leg cycling in able-bodied and spinal cord injured individuals
,
J Spinal Cord
, vol.
43
(pg.
543
-
549
)
Trumbower RD, Faghri PD. Kinematic analysis of semireclined leg cycling in able-bodied and spinal cord injured individuals. Spinal Cord. 2005;43:543–549.
,
Kinematic analysis of semireclined leg cycling in able-bodied and spinal cord injured individuals
,
Spinal Cord
, vol.
43
(pg.
543
-
549
)
Van Soest AJ, Gföhler M, Casius LJR. Consequences of ankle joint fixation on FES cycling power output: a simulation study. Med Sci Sports Exerc. 2005;37(5):797–806.
,
Consequences of ankle joint fixation on FES cycling power output: a simulation study
,
Med Sci Sports Exerc.
, vol.
37
(pg.
797
-
806
)
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