Similar Cardioventilatory but Greater Neuromuscular Stimuli With Interval Drop Jump Than With Interval Running.
Int J Sports Physiol Perform
; 15(3): 330-339, 2020 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-31188680
ABSTRACT
CONTEXT Drop jumps and high-intensity interval running are relevant training methods to improve explosiveness and endurance performance, respectively. Combined training effects might, however, be achieved by performing interval drop jumping. PURPOSE:
To determine the acute effects of interval drop jumping on oxygen uptake (VËO2)-index of cardioventilatory/oxidative stimulation level and peripheral fatigue-a limiting factor of explosiveness.METHODS:
Thirteen participants performed three 11-minute interval training sessions during which they ran 15 seconds at 120% of the velocity that elicited maximal VËO2 (VËO2max) (ITrun), or drop jumped at 7 (ITDJ7) or 9 (ITDJ9) jumps per 15 seconds, interspersed with 15 seconds of passive recovery. VËO2 and the time spent above 90% of VËO2max (VËTO2max) were collected. Peripheral fatigue was quantified via preexercise to postexercise changes in evoked potentiated quadriceps twitch (ΔQT). Power output was estimated during ITDJs using optical sensors.RESULTS:
All participants reached 90% of VËO2max or higher during ITrun and ITDJ9, but only 11 did during ITDJ7. VËTO2max was not different between ITrun and ITDJ9 (145 [76] vs 141 [151] s; P = .92) but was reduced during ITDJ7 (28 [26] s; P = .002). Mean ΔQT in ITDJ9 and ITDJ7 was not different (-17% [9%] vs -14% [8%]; P = .73) and greater than in ITrun (-8% [7%]; P = .001). No alteration in power output was found during ITDJs (37 [10] W·kg-1).CONCLUSION:
Interval drop jumping at a high work rate stimulated the cardioventilatory and oxidative systems to the same extent as interval running, while the exercise-induced increase in fatigue did not compromise drop jump performance. Interval drop jumping might be a relevant strategy to get concomitant improvements in endurance and explosive performance.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Int J Sports Physiol Perform
Asunto de la revista:
FISIOLOGIA
/
MEDICINA ESPORTIVA
Año:
2020
Tipo del documento:
Article