Muscle activation and length changes during two lunge exercises : Implications for rehabilitation
(2009) In Scandinavian Journal of Medicine and Science in Sports 19(4). p.561-568- Abstract
Eccentric exercises are commonly used as a treatment for various muscle and tendon injuries. During complex motions such as the forward lunge, however, it is not always clear which muscles may be contracting eccentrically and at what time. Because this exercise is used during rehabilitation, the purpose of this investigation was to determine what type of contractions take place during two different types of forward lunge and assess the implications for rehabilitation. Five experienced athletes performed five cycles for each of the walking and jumping forward lunges. Motion analysis was used to calculate the shortening or elongation of each muscle based on the change of position of their origin and insertion points during the lunge.... (More)
Eccentric exercises are commonly used as a treatment for various muscle and tendon injuries. During complex motions such as the forward lunge, however, it is not always clear which muscles may be contracting eccentrically and at what time. Because this exercise is used during rehabilitation, the purpose of this investigation was to determine what type of contractions take place during two different types of forward lunge and assess the implications for rehabilitation. Five experienced athletes performed five cycles for each of the walking and jumping forward lunges. Motion analysis was used to calculate the shortening or elongation of each muscle based on the change of position of their origin and insertion points during the lunge. Electromyography of the lateral hamstrings, rectus femoris and lateral gastrocnemius was combined with the muscle length change data to determine when isometric, concentric and eccentric activations occur during the lunge. Eccentric contractions in both the quadriceps and gastrocnemius were observed during the lunge. No hamstring eccentric contractions were found; however, the hamstrings showed isometric contractions during the first part of the stance phase.
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- author
- Jönhagen, S. ; Halvorsen, K. and Benoit, D. L. LU
- publishing date
- 2009-08
- type
- Contribution to journal
- publication status
- published
- keywords
- Eccentric, EMG, Forward lunge, Gastrocnemius, Hamstring, Lengthening, Motion analysis, Quadriceps
- in
- Scandinavian Journal of Medicine and Science in Sports
- volume
- 19
- issue
- 4
- pages
- 561 - 568
- publisher
- Wiley-Blackwell
- external identifiers
-
- pmid:19708966
- scopus:69149104894
- ISSN
- 0905-7188
- DOI
- 10.1111/j.1600-0838.2007.00692.x
- language
- English
- LU publication?
- no
- id
- 9ebdb3bb-a4d5-428d-bf18-9f9d0439c22f
- date added to LUP
- 2023-08-24 16:47:26
- date last changed
- 2024-04-20 01:42:49
@article{9ebdb3bb-a4d5-428d-bf18-9f9d0439c22f,
abstract = {{<p>Eccentric exercises are commonly used as a treatment for various muscle and tendon injuries. During complex motions such as the forward lunge, however, it is not always clear which muscles may be contracting eccentrically and at what time. Because this exercise is used during rehabilitation, the purpose of this investigation was to determine what type of contractions take place during two different types of forward lunge and assess the implications for rehabilitation. Five experienced athletes performed five cycles for each of the walking and jumping forward lunges. Motion analysis was used to calculate the shortening or elongation of each muscle based on the change of position of their origin and insertion points during the lunge. Electromyography of the lateral hamstrings, rectus femoris and lateral gastrocnemius was combined with the muscle length change data to determine when isometric, concentric and eccentric activations occur during the lunge. Eccentric contractions in both the quadriceps and gastrocnemius were observed during the lunge. No hamstring eccentric contractions were found; however, the hamstrings showed isometric contractions during the first part of the stance phase.</p>}},
author = {{Jönhagen, S. and Halvorsen, K. and Benoit, D. L.}},
issn = {{0905-7188}},
keywords = {{Eccentric; EMG; Forward lunge; Gastrocnemius; Hamstring; Lengthening; Motion analysis; Quadriceps}},
language = {{eng}},
number = {{4}},
pages = {{561--568}},
publisher = {{Wiley-Blackwell}},
series = {{Scandinavian Journal of Medicine and Science in Sports}},
title = {{Muscle activation and length changes during two lunge exercises : Implications for rehabilitation}},
url = {{http://dx.doi.org/10.1111/j.1600-0838.2007.00692.x}},
doi = {{10.1111/j.1600-0838.2007.00692.x}},
volume = {{19}},
year = {{2009}},
}