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Citation

Astorino TA, Pierce S, Piva MB, Metcalfe RS & Vollaard NBJ (2024) Physiological and perceptual responses to sprint interval exercise using arm versus leg cycling ergometry. Sports Medicine and Health Science. https://doi.org/10.1016/j.smhs.2024.01.007

Abstract
Increases in power output and maximal oxygen consumption (VO2max) occur in response to sprint interval exercise (SIE), but common use of “all-out” intensities presents a barrier for many adults. Furthermore, lower-body SIE is not feasible for all adults. We compared physiological and perceptual responses to supramaximal, but “non-all-out” SIE between leg and arm cycling exercise. Twenty-four active adults (mean?±?SD age: [25?±?7] y; cycling VO2max: [39?±?7] mL·kg?1·min?1) performed incremental exercise using leg (LCE) and arm cycle ergometry (ACE) to determine VO2max and maximal work capacity (Wmax). Subsequently, they performed four 20?s (s) bouts of SIE at 130?% Wmax on the LCE or ACE at cadence?=?120–130?rev/min, with 2?min (min) recovery between intervals. Gas exchange data, heart rate (HR), blood lactate concentration (BLa), rating of perceived exertion (RPE), and affective valence were acquired. Data showed significantly lower (p??0.42), and lowest affective valence recorded (2.0?±?1.8) was considered “good to fairly good”. Data show that non “all-out” ACE elicits lower absolute but higher relative HR and VO2 compared to LCE. Less aversive perceptual responses could make this non-all-out modality feasible for inactive adults.

Keywords
High intensity interval training; Upper body exercise; Peak power output; Oxygen uptake; Blood lactate concentration

Journal
Sports Medicine and Health Science

• Published Version