Vpliv okrevanja po 21-km teku na dihalni in metabolni odziv ter občutek napora med zmerno aerobno vadbo pri rekreativnih tekačih : magistrsko delo

Peternel, Saša (author), Potočnik, Nejka (mentor), Kacin, Alan (reviewer)

Uvod: Eno od orodij za preventivo pretreniranosti je primerna časovna razporeditev vadbenih enot tako, da športnik novo vadbeno enoto izvede po okrevanju po prejšnji vadbeni enoti. Namen: Proučiti časovni vidik vpliva dolgotrajne aerobne vadbe (tek na 21 km) na dihalne in metabolne odzive ter občutek napora med kasnejšo zmerno aerobno vadbo pri zdravih odraslih rekreativnih tekačih. Metode dela: V raziskavi je sodelovalo 19 zdravih odraslih rekreativnih tekačev, ki so pretekli 21 km in opravili pet zmernih aerobnih vadb na sobnem kolesu, in sicer pred tekom ter pol ure, en dan, dva dni in sedem dni po njem. Primerjali smo spremembe dihalnih in metabolnih odzivov ter občutek napora v posamezni meritvi po teku na 21 km glede na kontrolno meritev, ki smo jo izvedli pred tekom na 21 km. Rezultati: Dihalni in metabolni odziv na zmerno aerobno vadbo je bil pol ure po teku na 21 km spremenjen pri vseh opazovanih parametrih, razen pri ventilacijskem ekvivalentu za kisik in strmini odvisnosti porabe kisika od obremenitve. Respiratorni količnik je bil med okrevanjem po zmerni aerobni vadbi, ki smo jo izvedli en dan po 21-km teku, glede na kontrolno meritev statistično značilno nižji (p = 0,007). Rezultati kažejo dvofazni odgovor v kisikovem pulzu, ki je bil ob koncu zmerne aerobne vadbe pol ure po 21-km teku glede na kontrolno meritev statistično značilno nižji (p = 0,030) in en dan po 21-km teku statistično značilno višji (p = 0,022). Razprava in zaključek: Spremenjen respiratorni količnik pol ure po 21-km teku in med zmerno aerobno vadbo, ki smo jo izvedli pol ure po 21-km teku, kaže na spremenjen metabolizem s premikom proti porabi maščob kot glavnega vira energije. Zmanjšana srčno-pljučna kapaciteta je bila prisotna pri zmerni aerobni vadbi, ki smo jo izvedli pol ure po 21-km teku, in kaže na utrujenost srčne mišice brez respiratorne kompenzacije. Rezultati kisikovega pulza kažejo na izboljšano srčno akcijo pri zmerni aerobni vadbi en dan po 21-km teku. Glede na dobljene rezultate izvajanje telesne aktivnosti, četudi zmerne, pol ure po 21-km teku odsvetujemo, medtem ko ugotavljamo, da je novo vadbeno enoto zmerne intenzitete optimalno izvesti en dan po 21-km teku.

• Language: Slovenian
• Keywords: magistrska dela, fizioterapija, dolgotrajna aerobna vadba, pretreniranost, obdobje okrevanja, kisikov pulz
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: ZF - Faculty of Health Sciences
• Place of publishing: Ljubljana
• Publisher: [S. Peternel]
• Year: 2023
• Number of pages: 65 str., [7] str. pril.
• PID: 20.500.12556/RUL-144922
• UDC: 615.8
• COBISS.SI-ID: 146217987
• Publication date in RUL: 23.03.2023

Secondary language

• Language: English
• Title: Recovery impact after 21K run on respiratory and metabolic responses and perceived exertion during moderate aerobic exercise in recreational runners : master's thesis

Abstract

Introduction: One of the overtraining prevention tools is periodization of training in a way where the athlete performs training after full recovery following the previous training session. Purpose: To study the impact of a 21K run on respiratory and metabolic responses and perceived exertion during subsequent moderate aerobic exercise in healthy adult recreational runners. Methods: The study was conducted on a sample of 19 healthy adult recreational runners. The subjects went on a 21K run and performed five moderate aerobic exercises on a cycloergometer before the run and half an hour, one day, two days and seven days after the run. We compared changes in respiratory and metabolic responses and perceived exertion in each measurement made after the 21K run to the measurement made before the 21K run. Results: Respiratory and metabolic responses to the moderate aerobic exercise half an hour after a 21K run changed in all observed parameters, except in the ventilatory equivalent for oxygen and oxygen uptake - work rate slope. The respiratory quotient was statistically significantly lower in recovery after the moderate aerobic exercise performed one day after the 21K run, compared to the control measurement (p = 0.007). The results show a biphasic response in the oxygen pulse, which was statistically significantly lower (p = 0.030) at the end of the moderate aerobic exercise half an hour after the 21K run and statistically significantly higher (p = 0.022) one day after the 21K run, compared to the control measurement. Discussion and conclusion: The respiratory quotient recorded half an hour after the 21K run and during the moderate aerobic exercise performed half an hour after the 21K run indicates a shift in metabolism toward the use of fat as the main source of energy. Reduced cardiopulmonary capacity was present during moderate aerobic exercise performed half an hour after the 21K run and indicates cardiac muscle fatigue without respiratory compensation. Results of oxygen pulse show improved cardiac output during the moderate aerobic exercise one day after the 21K run. Based on the obtained results, we do not recommend performing moderately intense physical activities half an hour after a 21K run, while we determine that it is optimal to perform new moderately intense training one day after a 21K run.

• Keywords: master's theses, physiotherapy, long-lasting aerobic exercise, overtraining, recovery period, oxygen pulse