@article {11565,
	title = {Early phase interference between low-intensity running and power training in moderately trained females.},
	journal = {Eur J Appl Physiol},
	volume = {116},
	year = {2016},
	month = {2016 May},
	pages = {1063-73},
	abstract = {PURPOSE: The aim of the study was to investigate the effects of low-intensity running performed immediately after lower-body power-training sessions on power development.

METHODS: Twenty young females participated in 6~weeks, 3/week, of either lower body power training (PT) or lower body power training followed by 30~min of low-intensity running (PET) eliciting 60-70~\% of maximal heart rate. The following were measured before and after the training period: counter-movement jump, isometric leg press force and rate of force development (RFD), half squat 1-RM, vastus lateralis fiber type composition and cross sectional area, resting intramuscular fiber conduction velocity (MFCV), and heart rate during the modified Bruce treadmill test.

RESULTS: Counter-movement jump height and peak power increased after PT (10.7~{\textpm}~6.2 and 12.9~{\textpm}~18.7~\%, p~<~0.05) but not after PET (3.4~{\textpm}~7.6 and 5.11~{\textpm}~10.94~\%, p~>~0.05). Maximum isometric force, RFD, and half squat 1-RM increased similarly in both groups. Muscle fiber type composition was not altered in either group. Muscle fiber cross sectional area increased only after PT (17.5~{\textpm}~17.4, 14.5~{\textpm}~10.4, 20.36~{\textpm}~11.3~\%, in type I, IIA, and IIX fibers, respectively, p~<~0.05). Likewise, mean MFCV increased with PT only (before: 4.53~{\textpm}~0.38~m~s(-1), after: 5.09~{\textpm}~0.39~m~s(-1), p~=~0.027). Submaximal heart rate during the Bruce treadmill test remained unchanged after PT but decreased after PET.

CONCLUSION: These results suggest that low-intensity running performed after lower-body power training impairs the exercise-induced adaptation in stretch-shortening cycle jumping performance (vertical jump height, peak power), during the first 6~weeks of training, which may be partially linked to inhibited muscle fiber hypertrophy and muscle fiber conduction velocity.},
	keywords = {Adaptation, Physiological, Adult, Exercise, Exercise Test, Female, Heart Rate, Humans, Muscle Fibers, Skeletal, Physical Endurance, Quadriceps Muscle, Resistance Training, Running, Young Adult},
	issn = {1439-6327},
	doi = {10.1007/s00421-016-3369-z},
	author = {Terzis, Gerasimos and Spengos, Kostas and Methenitis, Spyros and Aagaard, Per and Karandreas, Nikos and Gregory Bogdanis}
}
