Acute Effects of Single- Versus Double-Leg Postactivation Potentiation on Postural Balance of Older Women: An Age-Matched Controlled Study.
J Aging Phys Act
; 29(2): 200-206, 2021 04 01.
Article
em En
| MEDLINE
| ID: mdl-32820137
ABSTRACT
AIMS:
To compare the postactivation potentiation effects of isometric contraction until failure in double- and single-leg tasks on older women's balance.METHODS:
The one-legged balance test was performed before and immediately after a rise-to-toes task until the task failure. Older women were divided into two groups a group performed the task with double leg (n = 43) and the other group with single-leg support (n = 55).RESULTS:
The single-leg group showed slower velocity of sway post rise-to-toes task (pre = 4.02 ± 1; post = 3.78 ± 1.15 m/s; p = .04) without differences for the center of pressure path length (pre = 79 ± 21; post = 75 ± 23 cm; p = .08). In the double-leg group, faster velocity of sway (pre = 4 ± 1.22; post = 4.25 ± 1.13; p = .03) and increased center of pressure path length (pre = 80 ± 24; post = 85 ± 23 cm; p = .03) were observed after the task.CONCLUSIONS:
The single-leg group showed improved balance outcomes due to postactivation potentiation, while the double-leg group showed worsened balance consistent with muscle fatigue.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Equilíbrio Postural
/
Perna (Membro)
Limite:
Aged
/
Female
/
Humans
Idioma:
En
Revista:
J Aging Phys Act
Ano de publicação:
2021
Tipo de documento:
Article