TY - JOUR AU - Tékus, Éva AU - Szénási, Nikolett Lilla AU - Szabó, Edina AU - Heckel, Zoltán AU - Mintál, Tibor AU - Kőszegi, Tamás AU - Atlasz, Tamás AU - Gazdag, Zoltán AU - Váczi, Márk AU - Wilhelm, Márta TI - Well-Trained Elders Have Antioxidant Responses and an Equal Magnitude of EIMD as Young Adults. JF - INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH J2 - INT J ENV RES PUB HE VL - 19 PY - 2022 IS - 15 PG - 9 SN - 1661-7827 DO - 10.3390/ijerph19158889 UR - https://m2.mtmt.hu/api/publication/33032325 ID - 33032325 N1 - * Megosztott szerzőség AB - Aim The aim of the study was to investigate acute and chronic effects of a two-week eccentric concentric, dynamometric training concerning the time-course changes of blood antioxidant parameters (total antioxidant capacity, catalase enzyme activity, thiol concentration), and to compare the adaptability of young and older muscle to this type of training. Methods Seventeen moderately trained young and older men participated in this research. Subjects performed six eccentric concentric exercise bouts during the training period and maximal voluntary isometric contraction torque, plasma CK and intensity of muscle soreness were determined before and 24 h after the first exercise. During five testing sessions (baseline, 24 h, 48 h, week 1, week 2) the level of blood antioxidants were measured. Results No significant changes were registered in total antioxidant capacity and catalase enzyme activity for any time points; furthermore, no difference was found between groups during the training period. However, total thiol concentrations measured two weeks after the first exercise bout significantly differed between the young and elderly groups. Plasma CK and the subjective intensity of soreness elevated significantly 24 h following the first training, while maximal voluntary isometric contraction torque decreased at the same time. Conclusions Our results do not support previous findings that chronic, short-term eccentric concentric training programs enhance the antioxidant defense of well-trained older and young men. This type and setting of exercise did not cause a different time course of changes in the markers of exercise-induced muscle damage (EIMD) in the studied population. Subjects may already have adapted to maintain constant levels of antioxidants and isometric torque due to their active lifestyle. LA - English DB - MTMT ER - TY - JOUR AU - Heckel, Zoltán AU - Atlasz, Tamás AU - Tékus, Éva AU - Kőszegi, Tamás AU - Laczkó, József AU - Váczi, Márk TI - Monitoring exercise-induced muscle damage indicators and myoelectric activity during two weeks of knee extensor exercise training in young and old men JF - PLOS ONE J2 - PLOS ONE VL - 14 PY - 2019 IS - 11 PG - 16 SN - 1932-6203 DO - 10.1371/journal.pone.0224866 UR - https://m2.mtmt.hu/api/publication/30886430 ID - 30886430 AB - This study considered the effects of repeated bouts of short-term resistive exercise in old (age: 64.5±5.5 years; n = 10) and young men (age: 25.1±4.9 years; n = 10) who performed six knee extension exercise bouts over two weeks using various markers of exercise-induced muscle damage and electromyographic activity. We found that time-course changes in quadriceps isometric torque, creatine kinase activity, and muscle soreness in the two groups were similar. However, recovery in the acute torque deficit was mediated by more favourable electromyographic activity changes in the young group than in the older adults group. Muscle elastic energy storage and re-use assessed with dynamometry was selectively improved in the young group by the end of the protocol. Serum myoglobin concentration increased selectively in old group, and remained elevated with further bouts, suggesting higher sarcolemma vulnerability and less effective metabolic adaptation in the older adults, which, however, did not affect muscle contractility. LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Edina AU - Szénási, Nikolett Lilla AU - Gazdag, Zoltán AU - Heckel, Zoltán AU - Váczi, Márk AU - Wilhelm, Márta AU - Tékus, Éva TI - Antioxidáns folyamatok vizsgálata időskorban JF - MAGYAR SPORTTUDOMÁNYI SZEMLE J2 - M SPORTTUD SZLE VL - 16 PY - 2015 IS - 2(62) SP - 62 EP - 63 PG - 2 SN - 1586-5428 UR - https://m2.mtmt.hu/api/publication/2908650 ID - 2908650 LA - Hungarian DB - MTMT ER - TY - CONF AU - Heckel, Zoltán ED - Berkes, I TI - Muscle damage and recovery following two weeks of eccentric-concentric knee extensor training in young versus old humans T2 - The 21st International Congress on Sport Science for Students PB - Semmelweis Egyetem Testnevelési és Sporttudományi Kar C1 - Budapest PY - 2014 SP - 24 UR - https://m2.mtmt.hu/api/publication/2908656 ID - 2908656 LA - English DB - MTMT ER - TY - CONF AU - Ambrus, Mira AU - Farkas, Szilárd AU - Heckel, Zoltán AU - Váczi, Márk ED - Bartusné, Szmodis Márta TI - Kontraktilitás és elasztikus energia-tárolási deficit az öregedő izomban T2 - Sporttudomány az egészség és teljesítmény szolgálatában PB - Magyar Sporttudományi Társaság C1 - Budapest PY - 2014 SP - 17 EP - 17 PG - 1 UR - https://m2.mtmt.hu/api/publication/2713763 ID - 2713763 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Heckel, Zoltán AU - Atlasz, Tamás AU - Tékus, Éva AU - Kőszegi, Tamás AU - Laczkó, József AU - Váczi, Márk TI - Mikrosérülés markerek és adaptáció monitorozása egy kéthetes erőfejlesztő mikrociklusban idős és fiatal embereknél JF - MAGYAR SPORTTUDOMÁNYI SZEMLE J2 - M SPORTTUD SZLE VL - 15 PY - 2014 IS - 58 SP - 35 PG - 1 SN - 1586-5428 UR - https://m2.mtmt.hu/api/publication/2713762 ID - 2713762 LA - Hungarian DB - MTMT ER -