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Details van artikel 27 van 37 gevonden artikelen
| Titel: |
THE EFFECTS OF A STRETCH-SHORTENING CYCLE FATIGUE PROTOCOL ON KNEE KINEMATICS DURING RUNNING IN UNTRAINED CHILDREN |
| Auteur: |
Tsatalas T Lazaridis S Zaggelidis G., Kotzamanidis C |
| Verschenen in: |
Citius Altius Fortius |
| Paginering: | Jaargang 27 (2010) nr. 2 pagina's 39-43 |
| Jaar: |
2010 |
| Inhoud: |
The purpose of the current study was to examine the effects of an intensive stretch shortening-cycle (SSC) protocol (100 plyometric jumps) on knee kinematics during running on a treadmill in healthy children using 3D kinematics. Twelve healthy and untrained children volunteered. Their mean + age, height and weight was 10,1±0,5 years, 142± 6,1 cm and 37 ±4,6kg, respectively. Muscle damage of lower extremities was caused by 100 maximal intensity plyometric jumps performed as 10 sets of 10 continuous jumps with a 30 second restperiod between sets. Muscle damage indicators [delayed onset muscle soreness (DOMS), knee-joint flexion/extension angles during running on a treadmill (speed at 2.8 m/s)] were assessed pre-, 0h, 24h, 48h and 72h post exercise. Kinematic data were captured at 100 Hz using a six-camera 3D motion analysis system (VICON 612). Repeated measures one-way ANOVA with five levels were utilised for the parameters. Allmuscle damage indicators revealed significant changes post- compared to pre-exercise data (p<0.05). Kinematic analysis revealed that the 100 plyometric jumps decreased knee-joint angles at different phases of stance (impact, support, push-off phase). These changes were more evident just after (0h) the protocol and 48h after this, and remained till 72h post at a great extent (p<0.05). Lastly, children suffered from delayed muscle soreness on their thigh muscles which remained only 24 hours after this (p<0.05). Muscle damage causesalterations in treadmill running in knee kinematics of untrained children probable due to differentiation of their central nervous system running strategy |
| Uitgever: |
University of Pitesti (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 27 van 37 gevonden artikelen
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