The Feasibility of Sprint Interval Training within Judoka utilising Arm
Cardiff Metropolitan University
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The aim of this research investigation was to primarily establish whether a sprint interval training (SIT) session and a modified SIT session were feasible for upper body sprint ergometry. In addition, the acute physiological responses and performance parameters during the two SIT protocols were examined. Six male, full-time judoka (age 21.7 ± 3.1 years; height 1.80 ± 0.07 m; mass 74.9 ± 9.3 kg) performed a preliminary VO2peak test and two SIT procedures on separate occasions. The preliminary, incremental VO2peak test was performed on an arm crank ergometer (Lode Arm Ergometer, Groningen, The Netherlands). The two SIT protocols were performed using a resistance-braked arm ergometer fitted with an Schoberer Rad Meßtechnik (SRM) powermeter. The SIT session consisted of four ‘all out’ 30-s sprints interspersed with 4-min active recovery. The modified SIT session consisted of four ‘all out’ 10-s sprints interspersed with 4-min active recovery. The SIT protocol elicited a significantly greater cardiorespiratory response in terms of percentage of VO2peak (92.9 ± 7.6%) compared to that of the modified SIT protocol (83.8 ± 9.0%; P < 0.05). Peak power outputs (PPO) were significantly greater in the modified SIT protocol (6.7 ± 1.3 W·kg-1) compared to the PPO generated during the SIT protocol (5.2 ± 0.9 W·kg-1; P < 0.05). It has previously been suggested that high cardiorespiratory demand is not responsible for the reported increase in VO2max. It was therefore proposed that power generation might be a key stimulus for such physiological adaptations. The present study, in accordance with previous literature, reaffirms the notion that SIT and modified SIT elicits peripheral rather than central adaptation. Furthermore, upper body SIT and modified SIT were deemed feasible for a specifically trained population; it was concluded that upper body SIT may be a time-efficient strategy to promote peripheral, aerobic and anaerobic adaptation in elite judoka.
DEGREE OF BACHELOR OF SCIENCE (HONOURS) SPORT AND EXERCISE SCIENCE
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