Age-related differences of inter-joint coordination in elderly during squat jumping

Argaud, Sebastien ✉; de Fontenay, Benoit Pairot; Blache, Yoann; Monteil, Karine

Angol nyelvű Tudományos Szakcikk (Folyóiratcikk)
Megjelent: PLOS ONE 1932-6203 14 (9) Paper: e0221716 , 13 p. 2019
  • Pedagógiai Tudományos Bizottság: A
  • Szociológiai Tudományos Bizottság: A
  • SJR Scopus - Multidisciplinary: D1
    BackgroundExplosive movement requires that the individual exerts force and power with appropriate magnitude and timing. These coordination aspects have received less attention despite being a basic prerequisite for daily mobility and physical autonomy, especially in older people. Therefore, the purpose of this study is to characterize the effect of age on inter-joint coordination during explosive movement.MethodsTwenty-one elderly and twenty young participants performed three maximal vertical jumps, while kinematics were recorded throughout each squat jump. Inter-joint coordination and coordination variability were calculated for selected sagittal hip-knee, knee-ankle, and hipankle joint couplings using the continuous relative phase method.ResultsThe young participants produced significantly greater jump height performance (0.36 +/- 0.07 m vs. 0.12 +/- 0.04 m, p < 0.001). The mean absolute continuous relative phase for ankleknee and knee-hip joint couplings were significantly greater for the elderly in comparison to the young group (p < 0.01 for the both). No significant differences between senior and young participants in the mean absolute continuous relative phase for ankle-hip joint couplings (p = 0.25) was observed. However, there was significantly more variability in interjoint coordination in the elderly marked by greater continuous relative phase variabilities in ankle-knee, ankle-hip and knee-hip joint couplings (p < 0.001) than those observed in young adults.ConclusionIn this study, seniors demonstrated proximodistal inter-joint coordination but with different delays in the pattern of inter-joint coordination during squat jumps compared to young adults. In addition, a higher continuous relative phase variability in the elderly may be needed to improve stability or compensate for strength deficits in jump achievement.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2021-05-10 07:30