Unit:
Τομέας Βασικών ΕπιστημώνLibrary of the School of Health Sciences
Author:
Roussos Theodoros
Dissertation committee:
Ιωάννης Τριανταφυλλόπουλος, Επίκουρος Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ, Επιβλέπων
Αθανασία Σμυρνιώτου, Καθηγήτρια, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, ΕΚΠΑ
Αναστάσιος Φιλίππου, Επίκουρος Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Ιωάννης Βλάμης, Επίκουρος Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Δημήτριος Μαστρόκαλος, Επίκουρος Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Ισμήνη-Νίκη Δοντά, Καθηγήτρια, Ιατρική Σχολή, ΕΚΠΑ
Ευστάθιος Χρονόπουλος, Αναπληρωτής Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Original Title:
Επίπεδο ενεργοποίησης συγκεκριμένων μυϊκών ομάδων των κάτω άκρων σε δρόμους με κλίση του εδάφους σε σχέση με τον επίπεδο δρόμο και βελτίωση της αθλητικής απόδοσης σε δρόμους αντοχής στο βουνό
Translated title:
Electromyographic activity of the lower limb muscles during running in diefferent environments and varied slope gradients and performance improvement when trail running
Summary:
The purpose of this study was to assess whether the electromyographic (EMG) activity of the lower limb muscles - rectus femoris, vastus medialis, bicep femoris and gastrocnemius - during running is affected by different running environments and varied slope gradients.Data collected from this study would be useful for specific training programs adopted from different style runners.
Ten male recreational runners participated in the current study. Each of the ten participants, was assessed in two different running conditions, treadmill running and over-ground running, which was consisted of a 20m distance running at a velocity of 11±1km/h at each of the following slope gradients -8%, -4%, 0%, 4%, 8% - in a randomized order. Findings revealed that when over-ground running EMG activity of the lower limb muscles was 16.54% higher compared to treadmill running. Treadmill running is characterized by reduced metabolic cost, which is related to lower muscle activation requirements.
Varied slope gradients found to affect muscle activation. During uphill running, lower limb muscle activation was significantly higher compared to level and downhill running, independently on the running environment. However, running at negative slope gradients was associated with significantly greater muscle activation compared to level running, only on the treadmill condition.
Treadmill running which related to lower limb muscle activation, could be useful as a treatment and rehabilitation instrument for those people who have muscle and skeletal problems. Furthermore the positive - pressure treadmill offer higher security because the body weight which participate to the movement can regulated.
Main subject category:
Health Sciences
Keywords:
Electromyographic activity, Overground running, Treadmill running, Slope gradient
