Improvements in Lower-Extremity Function Following a Rehabilitation Program With Patterned Electrical Neuromuscular Stimulation in Females With Patellofemoral Pain: A Randomized Controlled Trial.
J Sport Rehabil
; 29(8): 1075-1085, 2020 11 01.
Article
en En
| MEDLINE
| ID: mdl-31825893
ABSTRACT
CONTEXT Patellofemoral pain (PFP) is a challenging condition, with altered kinematics and muscle activity as 2 common impairments. Single applications of patterned electrical neuromuscular stimulation (PENS) have improved both kinematics and muscle activity in females with PFP; however, the use of PENS in conjunction with a rehabilitation program has not been evaluated. OBJECTIVE:
To determine the effects of a 4-week rehabilitation program with PENS on lower-extremity biomechanics and electromyography (EMG) during a single-leg squat (SLS) and a step-down task (SDT) in individuals with PFP. STUDYDESIGN:
Double-blinded randomized controlled trial.SETTING:
Laboratory. Patients of OtherParticipants:
Sixteen females with PFP (age 23.3 [4.9] y, mass 66.3 [13.5] kg, height 166.1 [5.9] cm). INTERVENTION Patients completed a 4-week supervised rehabilitation program with or without PENS. MAIN OUTCOMEMEASURES:
Curve analyses for lower-extremity kinematics and EMG activity (gluteus maximus, gluteus medius, vastus medialis oblique, vastus lateralis, biceps femoris, and adductor longus) were constructed by plotting group means and 90% confidence intervals throughout 100% of each task, before and after the rehabilitation program. Mean differences (MDs) and SDs were calculated where statistical differences were identified.RESULTS:
No differences at baseline in lower-extremity kinematics or EMG were found between groups. Following rehabilitation, the PENS group had significant reduction in hip adduction between 29% and 47% of the SLS (MD = 4.62° [3.85°]) and between 43% and 69% of the SDT (MD = 6.55° [0.77°]). Throughout the entire SDT, there was a decrease in trunk flexion in the PENS group (MD = 10.91° [1.73°]). A significant decrease in gluteus medius activity was seen during both the SLS (MD = 2.77 [3.58]) and SDT (MD = 4.36 [5.38]), and gluteus maximus during the SLS (MD = 1.49 [1.46]). No differences were seen in the Sham group lower-extremity kinematics for either task.CONCLUSION:
Rehabilitation with PENS improved kinematics in both tasks and decreased EMG activity. This suggests that rehabilitation with PENS may improve muscle function during functional tasks.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Terapia por Estimulación Eléctrica
/
Músculo Esquelético
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Síndrome de Dolor Patelofemoral
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Terapia por Ejercicio
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
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Adult
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Female
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Humans
Idioma:
En
Revista:
J Sport Rehabil
Asunto de la revista:
MEDICINA ESPORTIVA
/
REABILITACAO
Año:
2020
Tipo del documento:
Article