OBJECTIVES: To determine the relation between muscular strength, aerobic power (V O2 peak), submaximal blood lactate accumulation, and endurance performance in people with thoracic-level paraplegia. DESIGN: Participants performed tests of isokinetic strength, a graded exercise test, and 2 endurance performance tests. A Latin square counterbalanced design was used to determine the order of testing. SETTING: Research laboratory in a university setting. PARTICIPANTS: Ten adult male volunteers with thoracic-level paraplegia. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The relations between strength, V O2 peak, submaximal blood lactate accumulation, and endurance were determined by correlation analysis. RESULTS: Shoulder flexion strength correlated with V O2 peak and power output at V O2 peak. Shoulder strength accounted for 68.4% of the variation in performance time. Greater isokinetic elbow flexion and extension strength was associated with higher V O2 and power output at a blood lactate concentration of 4 mmol/L (flexion) and with a greater power output at V O2 peak (extension). CONCLUSIONS: These findings suggest that in this population, greater muscular strength is associated with greater aerobic power and endurance. Greater muscular strength could exert a positive influence on exercise performance by enabling higher levels of cardiorespiratory stress as the result of reduced or delayed local muscle fatigue.
OBJECTIVES: To determine the relation between muscular strength, aerobic power (V O2 peak), submaximal blood lactate accumulation, and endurance performance in people with thoracic-level paraplegia. DESIGN:Participants performed tests of isokinetic strength, a graded exercise test, and 2 endurance performance tests. A Latin square counterbalanced design was used to determine the order of testing. SETTING: Research laboratory in a university setting. PARTICIPANTS: Ten adult male volunteers with thoracic-level paraplegia. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The relations between strength, V O2 peak, submaximal blood lactate accumulation, and endurance were determined by correlation analysis. RESULTS: Shoulder flexion strength correlated with V O2 peak and power output at V O2 peak. Shoulder strength accounted for 68.4% of the variation in performance time. Greater isokinetic elbow flexion and extension strength was associated with higher V O2 and power output at a blood lactate concentration of 4 mmol/L (flexion) and with a greater power output at V O2 peak (extension). CONCLUSIONS: These findings suggest that in this population, greater muscular strength is associated with greater aerobic power and endurance. Greater muscular strength could exert a positive influence on exercise performance by enabling higher levels of cardiorespiratory stress as the result of reduced or delayed local muscle fatigue.
Authors: Natalia Alexeeva; Carol Sames; Patrick L Jacobs; Lori Hobday; Marcello M Distasio; Sarah A Mitchell; Blair Calancie Journal: J Spinal Cord Med Date: 2011 Impact factor: 1.985
Authors: Frederico Ribeiro Neto; Rodrigo R Gomes Costa; Jefferson R Dorneles; Carlos W Gonçalves; João H C L Veloso; Rodrigo L Carregaro Journal: Top Spinal Cord Inj Rehabil Date: 2021-08-13
Authors: Laurien M Buffart; Rita J G van den Berg-Emons; Marie S van Wijlen-Hempel; Henk J Stam; Marij E Roebroeck Journal: Eur J Appl Physiol Date: 2008-02-01 Impact factor: 3.078