182 Acute effects of small-sided games on the lower limb functional asymmetry in young soccer players

Background: Morphological changes characteristic of femoroacetabular impingement (FAI) are common in soccer players. However, the clinical relevance of such anatomical variations is still not well-defined. Hypothesis: We hypothesized that high alpha angle values and/or acetabular retroversion index (ARI) are correlated with rotational range of motion (ROM) of the hip and that there are clinical-radiological diferences between the dominant lower limb (DLL) and nondominant lower limb (NDLL) in professional soccer players. Study Design: Cross-sectional. Level of Evidence: Level 3. Methods: A total of 59 male professional soccer players (average age 25.5 years, range 18-38 years) were evaluated in the preseason. As main outcome measures, we evaluated the alpha angle and the ARI and hip IR and ER ROM with radiographic analysis. Results: The measurements taken on DLL and NDLL were compared and a significant difference was found between the sides in the ER ( P = 0.027), where the DLL measures were 1.54° (95% CI, 0.18-2.89) greater than the NDLL. There were no significant differences between the sides in the measures of IR ( P > 0.99), total ROM ( P = 0.07), alpha angle ( P = 0.250), and ARI ( P = 0.079). The correlations between the rotation measurements and the alpha angle in each limb were evaluated and the coefficient values showed no correlation; so also between the ARI and rotation measures. Conclusion: Morphological changes of the femur or acetabulum are not correlated with hip IR and ER ROM in male professional soccer players. ER on the dominant side was greater than on the nondominant side. There was no significant difference in the other measurements between sides. Clinical Relevance: In clinical practice, it is common to attribute loss of hip rotational movement to the presence of FAI. This study shows that anatomical FAI may not have a very strong influence on available hip rotational movement in professional soccer athletes.

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Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18189594 ◽

2021 ◽

Vol 18 (18) ◽

pp. 9594

Author(s):

Chih-Min Wu ◽

Mei-Hsien Lee ◽

Wen-Yi Wang ◽

Zong-Yan Cai

Keyword(s):

Lower Limb ◽

Repeated Measures ◽

Vastus Lateralis ◽

Crossover Design ◽

Physiological Measures ◽

Acute Effects ◽

Leg Press ◽

Recreational Athletes ◽

Lower Limb Strength ◽

Strength Based

Inter-set peripheral cooling can improve high-intensity resistance exercise performance. However, whether foot cooling (FC) would increase 1 repetition maximum (RM) lower-limb strength is unclear. This study investigated the effect of intermittent FC on 1 RM leg press strength. Ten recreational male lifters performed three attempts of 1 RM leg press with FC or non-cooling (NC) in a repeated-measures crossover design separated by 5 days. FC was applied by foot immersion in 10 °C water for 2.5 min before each attempt. During the 1 RM test, various physiological measures were recorded. The results showed that FC elicited higher 1 RM leg press strength (Δ [95% CI]; Cohen’s d effect size [ES]; 13.6 [7.6–19.5] kg; ES = 1.631) and electromyography values in vastus lateralis (57.7 [8.1–107.4] μV; ES = 0.831) and gastrocnemius (15.1 [−3.1–33.2] μV; ES = 0.593) than in NC. Higher arousal levels (felt arousal scale) were found in FC (0.6 [0.1–1.2]; ES = 0.457) than in NC. In conclusion, the preliminary findings, although limited, suggest intermittent FC has a potential ergogenic role for recreational athletes to enhance maximal lower-limb strength and may partly benefit strength-based competition events.

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Peer Review #2 of "Infrared thermography applied to lower limb muscles in elite soccer players with functional ankle equinus and non-equinus condition (v0.2)"

10.7287/peerj.3388v0.2/reviews/2 ◽

2017 ◽

Keyword(s):

Peer Review ◽

Infrared Thermography ◽

Lower Limb ◽

Soccer Players ◽

Lower Limb Muscles ◽

Limb Muscles

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The acute effects of lower limb intermittent negative pressure on foot macro- and microcirculation in patients with peripheral arterial disease

PLoS ONE ◽

10.1371/journal.pone.0179001 ◽

2017 ◽

Vol 12 (6) ◽

pp. e0179001 ◽

Cited By ~ 5

Author(s):

Øyvind Heiberg Sundby ◽

Lars Øivind Høiseth ◽

Iacob Mathiesen ◽

Harald Weedon-Fekjær ◽

Jon O. Sundhagen ◽

...

Keyword(s):

Peripheral Arterial Disease ◽

Negative Pressure ◽

Lower Limb ◽

Arterial Disease ◽

Acute Effects ◽

Peripheral Arterial

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Acute Effects Of Depth Jump Volume On Vertical Jump Performance In Ncaa Di Women Soccer Players

The Journal of Strength and Conditioning Research ◽

10.1097/01.jsc.0000367219.23106.47 ◽

2010 ◽

Vol 24 ◽

pp. 1

Author(s):

Jennie Stieg ◽

Kimberly J Faulkinbury ◽

Lee E Brown ◽

Jared W Coburn ◽

Daniel A Judelson

Keyword(s):

Vertical Jump ◽

Soccer Players ◽

Acute Effects ◽

Jump Performance

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Acute Effects of Active, Ballistic, Passive, and Proprioceptive Neuromuscular Facilitation Stretching on Sprint and Vertical Jump Performance in Trained Young Soccer Players

The Journal of Strength and Conditioning Research ◽

10.1519/jsc.0000000000002298 ◽

2018 ◽

Vol 32 (8) ◽

pp. 2199-2208

Author(s):

Lucas P. Oliveira ◽

Luiz H.P. Vieira ◽

Rodrigo Aquino ◽

João P.V. Manechini ◽

Paulo R.P. Santiago ◽

...

Keyword(s):

Vertical Jump ◽

Soccer Players ◽

Acute Effects ◽

Jump Performance ◽

Proprioceptive Neuromuscular Facilitation

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Infrared thermography applied to lower limb muscles in elite soccer players with functional ankle equinus and non-equinus condition

PeerJ ◽

10.7717/peerj.3388 ◽

2017 ◽

Vol 5 ◽

pp. e3388 ◽

Cited By ~ 15

Author(s):

David Rodríguez-Sanz ◽

Marta Elena Losa-Iglesias ◽

Daniel López-López ◽

César Calvo-Lobo ◽

Patricia Palomo-López ◽

...

Keyword(s):

Lower Limb ◽

Tibialis Anterior ◽

Tibialis Anterior Muscle ◽

Direct Consequence ◽

Triceps Surae ◽

Soccer Players ◽

Maximum Temperature ◽

Lower Limb Muscles ◽

Professional Soccer ◽

The Status

Gastrocnemius-soleus equinus (GSE) is a foot-ankle complaint in which the extensibility of the gastrocnemius (G) and soleus muscles (triceps surae) and ankle are limited to a dorsiflexion beyond a neutral ankle position. The asymmetric forces of leg muscles and the associated asymmetric loading forces might promote major activation of the triceps surae, tibialis anterior, transverses abdominal and multifidus muscles. Here, we made infrared recordings of 21 sportsmen (elite professional soccer players) before activity and after 30 min of running. These recordings were used to assess temperature modifications on the gastrocnemius, tibialis anterior, and Achilles tendon in GSE and non-GSE participants. We identified significant temperature modifications among GSE and non-GSE participants for the tibialis anterior muscle (mean, minimum, and maximum temperature values). The cutaneous temperature increased as a direct consequence of muscle activity in GSE participants. IR imaging capture was reliable to muscle pattern activation for lower limb. Based on our findings, we propose that non-invasive IR evaluation is suitable for clinical evaluation of the status of these muscles.

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