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Acute effect of static and dynamic stretching on hip dynamic range of motion during instep kicking in professional soccer players

Amiri-Khorasani M, Abu Osman NA, Yusof A

J Strength Cond Res, 2011 Jun;25(6):1647-52.
PMID: 21358428 DOI: 10.1519/JSC.0b013e3181db9f41

The purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on hip dynamic range of motion (DROM) during instep kicking in professional soccer players. The kicking motions of dominant legs were captured from 18 professional adult male soccer players (height: 180.38 ± 7.34 cm; mass: 69.77 ± 9.73 kg; age: 19.22 ± 1.83 years) using 4 3-dimensional digital video cameras at 50 Hz. Hip DROM at backward, forward, and follow-through phases (instep kick phases) after different warm-up protocols consisting of static, dynamic, and no-stretching on 3 nonconsecutive test days were captured for analysis. During the backswing phase, there was no difference in DROM after the dynamic stretching compared with the static stretching relative to the no-stretching method. There was a significant difference in DROM after the dynamic stretching compared with the static stretching relative to the no-stretching method during (a) the forward phase with p < 0.03, (b) the follow-through phase with p < 0.01, and (c) all phases with p < 0.01. We concluded that professional soccer players can perform a higher DROM of the hip joint during the instep kick after dynamic stretching incorporated in warm-ups, hence increasing the chances of scoring and injury prevention during soccer games.

Matched MeSH terms: Muscle Stretching Exercises/methods*
Structured home-based exercise program for improving walking ability in ambulant children with cerebral palsy

Fauzi AA, Khayat MM, Sabirin S, Haron N, Mohamed MNA, Davis GM

J Pediatr Rehabil Med, 2019;12(2):161-169.
PMID: 31227664 DOI: 10.3233/PRM-180538

OBJECTIVE: To investigate outcomes after 8 weeks of a structured home-based exercise program (SHEP) for improving walking ability in ambulant children with cerebral palsy (CP).
METHOD: Eleven children participated in this study (7 males and 4 females, mean age 10 years 3 months, standard deviation (SD) 3y) with Gross Motor Function Classification System (GMFCS) I-III. This study used a prospective multiple assessment baseline design to assess the effect of SHEP upon multiple outcomes obtained in three different phases. Exercise intensity was quantified by OMNI-RPE assessed by caregivers and children. Outcome assessments of walking speed, GMFM-66 and physiological cost index (PCI) were measured four times at pre-intervention (Phase 1) and at 3-weekly intervals over eight weeks during intervention (Phase 2). Follow-up assessments were performed at one month and three months after intervention (Phase 3). Statistical analyses were repeated measures ANOVA and Wilcoxon signed-rank test.
RESULTS: SHEP improved walking ability in children with CP, particularly for their walking speed (p= 0.01, Cohen's d= 1.9). The improvement of GMFM-66 scores during Phase 2 and Phase 3 had a large effect size, with Cohen's d of 1.039 and 1.054, respectively, compared with that during Phase 1 (p< 0.017). No significant change of PCI was observed (Cohen's d= 0.39).
CONCLUSION: SHEP can be a useful intervention tool, given as a written, structured, and practical exercise program undertaken at home to achieve short term goals for improving walking ability when added to standard care.

Matched MeSH terms: Muscle Stretching Exercises/methods
The effect of exergaming on knee proprioception in older men: A randomized controlled trial

Sadeghi H, Hakim MN, Hamid TA, Amri SB, Razeghi M, Farazdaghi M, et al.

Arch Gerontol Geriatr, 2017 Mar-Apr;69:144-150.
PMID: 27923177 DOI: 10.1016/j.archger.2016.11.009

BACKGROUND: Proprioception is the ability to sense the body position, muscle sense, joint stability and posture. As balance decreases during the process of aging, knee proprioception has a critical role in body balance and daily activities. Exergaming has shown to be a potentially effective and more enjoyable form of exercise delivery.

OBJECTIVE: The purpose of this study was to determine the effect of an 8-week Xbox Kinect exercise program on knee proprioception in healthy older adults.

METHODOLOGY: Thirty-two elderly men who were 65 years of age or older were randomly allocated to either a control or experimental group (allocation ratio 1:1). The experimental group received an exergame intervention that included Xbox Kinect with games focusing on movements of the knee joint for 8 weeks (three times per week and 40min per sessions). A Biodex Isokinetic Dynamometer was used to measure knee joint position sense before and after the exercise program.

RESULTS: After eight weeks of training, knee proprioception significantly improved in the intervention group for several knee joint angles: 30° (3.5±1.1), 45° (3.1±0.9), and 60° (3.0±0.6) compared to the control group 30° (5.2±0.8), 45° (5.2±0.8), and 60° (6.2±0.9) (dominant leg F1, 28=23.469, p=0.001. ƞ2=0.456; non-dominant leg F1, 28=23.076, p=0.001. ƞ2=0.452).

CONCLUSION: The results from this study indicate that exergame intervention can enhance knee proprioception in elderly men.

Matched MeSH terms: Muscle Stretching Exercises/methods*

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