Changes in soleus H-reflex during walking in middle-aged, healthy subjects
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Changes in soleus H-reflex during walking in middle-aged, healthy subjects. / Raffalt, Peter C; Alkjær, Tine; Simonsen, Erik B.
I: Muscle & Nerve, Bind 51, Nr. 3, 03.2015, s. 419-25.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Changes in soleus H-reflex during walking in middle-aged, healthy subjects
AU - Raffalt, Peter C
AU - Alkjær, Tine
AU - Simonsen, Erik B
N1 - © 2014 Wiley Periodicals, Inc.
PY - 2015/3
Y1 - 2015/3
N2 - INTRODUCTION: To assess the effect of aging on stretch reflex modulation during walking, soleus H-reflexes obtained in 15 middle-aged (mean age 56.4±6.9 years) and 15 young (mean age 23.7±3.9 years) subjects were compared.METHODS: The H-reflex amplitude, muscle activity (EMG) of the soleus and tibialis anterior muscles, and EMG/H-reflex gain were measured during 4-km/h treadmill walking.RESULTS: The normalized H-reflex amplitude was lower in the swing phase for the middle-aged group, and there was no difference in muscle activity. EMG/H-reflex gain did not differ between groups.CONCLUSIONS: H-reflex amplitude during walking was affected by aging, and changes during the swing phase could be seen in the middle-aged subjects. Subdividing the 2 age groups into groups of facilitated or suppressed swing-phase H-reflex revealed that the H-reflex amplitude modulation pattern in the group with facilitated swing-phase H-reflex may be influenced by aging.
AB - INTRODUCTION: To assess the effect of aging on stretch reflex modulation during walking, soleus H-reflexes obtained in 15 middle-aged (mean age 56.4±6.9 years) and 15 young (mean age 23.7±3.9 years) subjects were compared.METHODS: The H-reflex amplitude, muscle activity (EMG) of the soleus and tibialis anterior muscles, and EMG/H-reflex gain were measured during 4-km/h treadmill walking.RESULTS: The normalized H-reflex amplitude was lower in the swing phase for the middle-aged group, and there was no difference in muscle activity. EMG/H-reflex gain did not differ between groups.CONCLUSIONS: H-reflex amplitude during walking was affected by aging, and changes during the swing phase could be seen in the middle-aged subjects. Subdividing the 2 age groups into groups of facilitated or suppressed swing-phase H-reflex revealed that the H-reflex amplitude modulation pattern in the group with facilitated swing-phase H-reflex may be influenced by aging.
U2 - 10.1002/mus.24279
DO - 10.1002/mus.24279
M3 - Journal article
C2 - 24801567
VL - 51
SP - 419
EP - 425
JO - Muscle & Nerve
JF - Muscle & Nerve
SN - 0148-639X
IS - 3
ER -
ID: 135268653