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  • Title: Neuromuscular and metabolic comparisons between ramp and step incremental cycle ergometer tests.
    Author: Zuniga JM, Housh TJ, Camic CL, Bergstrom HC, Traylor DA, Schmidt RJ, Johnson GO.
    Journal: Muscle Nerve; 2013 Apr; 47(4):555-60. PubMed ID: 23468338.
    Abstract:
    INTRODUCTION: We compared peak and submaximal mean values for neuromuscular and metabolic parameters between ramp (15 W · min(-1)) and step (30 W increments every 2 min) incremental cycle ergometer tests. METHODS: Thirteen healthy adults (7 men and 6 women; mean ± SD age = 23.4 ± 3.3 years) performed randomly ordered ramp or step incremental tests. Two-way repeated measures analyses of variance were used to analyze the data. RESULTS: The ramp incremental test resulted in lower mean EMG amplitude, O2, and HR values at the common power outputs, with no differences for MMG amplitude values. CONCLUSIONS: It is possible that the cumulative effect of producing an increased amount of work during the step (total work = 75.83 kJ) vs. ramp (total work = 65.60 kJ) incremental cycle ergometer tests at the common power outputs may have contributed to the greater fatigue-induced increase in muscle recruitment and/or firing rate, oxygen consumption, and heart rate.
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