Detailed Information on Publication Record
2013
Strength training and changes in the dynamics of running economy
CACEK, Jan, Tomáš KALINA and Martin DOLEŽALBasic information
Original name
Strength training and changes in the dynamics of running economy
Authors
CACEK, Jan (203 Czech Republic, guarantor, belonging to the institution), Tomáš KALINA (203 Czech Republic, belonging to the institution) and Martin DOLEŽAL (203 Czech Republic, belonging to the institution)
Edition
The 8th INSHS International Christmas Sport Scientific Conference, 2013
Other information
Language
English
Type of outcome
Konferenční abstrakt
Field of Study
Sport and leisure time activities
Country of publisher
Hungary
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14510/13:00070458
Organization unit
Faculty of Sports Studies
Keywords in English
oxygen uptake; acute effect; plyometric; maximum power
Tags
Změněno: 10/12/2013 13:34, Mgr. Tomáš Kalina, Ph.D.
Abstract
V originále
The aim of this study was to examine an acute effect of 4RM training and plyometric training (PT) on running economy (RE; O2 consumption) in endurance runners during a 48 hour interval. Eight performance runners (age 25.4 +- 1.4 years) completed a maximum strength training (4RM) of lower limbs (3 sets, rest 2 min, 5 exercises) and subsequently underwent a RE test on a treadmill (speed 8, 10 and 12 km.h-1) at three time intervals (0, +24 and +48 h) after the training. We found that the average VO2.BM-1.min-1 and deltaVO2.BM-1.min-1 at the given speed increased from baseline (a pretest 48 h before the strength intervention) by 2.3-5.6% and culminated after 24 h. These changes in RE after the strength intervention were not statistically significant, when compared to the pretest (48 h before the intervention). The second investigation was conducted in seven runners (age 25 +- 1.6 years). This time the intervention was plyometric (7 sec load, rest 2 min, maximum intensity, 3 sets, 6 exercises on the dominant lower limb). We found that the average VO2.BM-1.min-1 and deltaVO2.BM-1.min-1 at given speeds at intervals 0, +24 and +48 h did not increase, when compared to the pretest (p < 0.05; max +1%). These minimal changes probably resulted from the design of the PT, which had not a sufficiently destructive effect on muscle cells. The comparison of these two investigations indicates a stronger (although statistically insignificant) deterioration of RE after 4RM training versus PT.
Links
| MUNI/A/0790/2012, interní kód MU |
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