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Dr Stephen Pearson's Outputs (56)

Lack of association between postactivation potentiation and subsequent jump performance (2014)
Journal Article
Pearson, S., & Hussain, S. (2014). Lack of association between postactivation potentiation and subsequent jump performance. European Journal of Sport Science, 14(5), 418-425. https://doi.org/10.1080/17461391.2013.837511

Postactivation potentiation (PAP) is a strategy that has been used to acutely enhance the performance of explosive activities. Although, isometric maximal voluntary contractions (MVCs) have previously been shown to enhance subsequent explosive perfor... Read More about Lack of association between postactivation potentiation and subsequent jump performance.

Fish oil supplementation, resting blood flow and markers of cellular metabolism during incremental exercise (2014)
Journal Article
Pearson, S., Johnson, T., & Robins, A. (2014). Fish oil supplementation, resting blood flow and markers of cellular metabolism during incremental exercise. International Journal for Vitamin and Nutrition Research, 84(1-2), 18-26. https://doi.org/10.1024/0300-9831/a000189

Dietary supplementation of fish oils (n-3 PUFA) have been observed to affect insulin action and hence metabolism, affecting the ability to carry out work. Here we examine the effects of fish oil supplementation in conjunction with a glucose load duri... Read More about Fish oil supplementation, resting blood flow and markers of cellular metabolism during incremental exercise.

The use of normalized cross-correlation analysis for automatic tendon excursion measurement in dynamic ultrasound imaging (2013)
Journal Article
Pearson, S., Ritchings, R., & Mohamed, A. (2013). The use of normalized cross-correlation analysis for automatic tendon excursion measurement in dynamic ultrasound imaging. Journal of Applied Biomechanics, 29(2), 165-173

The work describes an automated method of tracking dynamic ultrasound images using a normalized cross-correlation algorithm, applied to the patellar and gastrocnemius tendon. Displacement was examined during active and passive tendon excursions using... Read More about The use of normalized cross-correlation analysis for automatic tendon excursion measurement in dynamic ultrasound imaging.

Lower limb mechanical properties : determining factors and implications for performance (2012)
Journal Article
Pearson, S., & McMahon, J. (2012). Lower limb mechanical properties : determining factors and implications for performance. Sports Medicine, 42(11), 929-940. https://doi.org/10.1007/BF03262304

Limb stiffness or musculotendinous stiffness (MTS) has previously been examined in relation to performance and characterized using a number of different methods. However, the fact that MTS shows only low to moderate correlations to performances may i... Read More about Lower limb mechanical properties : determining factors and implications for performance.

Footwear in classical ballet : A study of pressure distribution and related foot injury in the adolescent dancer (2012)
Journal Article
Pearson, S., & Whitaker, A. (2012). Footwear in classical ballet : A study of pressure distribution and related foot injury in the adolescent dancer. Journal of dance medicine & science, 16(2), 51-56

This study explores the relationship between dance shoe type and foot pressure characteristics. During adolescence, while the foot is still developing, limiting focal pressure on the feet may help reduce the risk of injury. In order to "condition" th... Read More about Footwear in classical ballet : A study of pressure distribution and related foot injury in the adolescent dancer.

In vivo measurement of the biomechanical properties of plantar soft tissues under simulated gait conditions (2012)
Presentation / Conference Contribution

In vivo biomechanical properties of plantar soft tissues have been assessed via manual indentation using simplified loading profiles [1], or in gait, with low image resolution/capture rates [2]. Since plantar soft tissue properties are highly rate de... Read More about In vivo measurement of the biomechanical properties of plantar soft tissues under simulated gait conditions.

A comparison of maximal squat strength and 5-, 10-, and 20-meter sprint times, in athletes and recreationally trained men (2012)
Journal Article
comfort, P., bullock, N., & Pearson, S. (2012). A comparison of maximal squat strength and 5-, 10-, and 20-meter sprint times, in athletes and recreationally trained men

The purpose of this study was to identify whether there was a relationship between relative strength during a 1 repetition maximum (1RM) back squat and 5-, 10-, and 20-m sprint performances in both trained athletes and recreationally trained individu... Read More about A comparison of maximal squat strength and 5-, 10-, and 20-meter sprint times, in athletes and recreationally trained men.

PPAR <gamma> as a molecular target of EPA anti-inflammatory activity during TNF-<alpha>-impaired skeletal muscle cell differentiation (2012)
Journal Article
Magee, P., Pearson, S., Whittingham-Dowd, J., & Allen, J. (2012). PPAR as a molecular target of EPA anti-inflammatory activity during TNF--impaired skeletal muscle cell differentiation. Journal of Nutritional Biochemistry, 23(11), 1440-1448. https://doi.org/10.1016/j.jnutbio.2011.09.005

Activated skeletal muscle satellite cells facilitate muscle repair or growth through proliferation, differentiation and fusion into new or existing myotubes. Elevated levels of the proinflammatory cytokine tumor necrosis factor-α (TNF-α) impair this... Read More about PPAR <gamma> as a molecular target of EPA anti-inflammatory activity during TNF-<alpha>-impaired skeletal muscle cell differentiation.

Lower limb stiffness: Effect on performance and training considerations (2012)
Journal Article
McMahon, J., Comfort, P., & Pearson, S. (2012). Lower limb stiffness: Effect on performance and training considerations. Strength and Conditioning Journal, 34(6), 94-101. https://doi.org/10.1519/SSC.0b013e3182781b4e

Summary: the aim of this review was to summarize the research to date on lower limb stiffness in relation to both its effect on performance and training considerations. Evidence suggests that some amount of lower limb stiffness is required for succes... Read More about Lower limb stiffness: Effect on performance and training considerations.

A comparison of maximal squat strength and five, ten and twenty meter sprint times in Athletes and recreationally trained individuals (2012)
Journal Article
Comfort, P., Bullock, N., & Pearson, S. (2012). A comparison of maximal squat strength and five, ten and twenty meter sprint times in Athletes and recreationally trained individuals. Journal of Strength and Conditioning Research, 26(4), 937-940. https://doi.org/10.1519/JSC.0b013e31822e5889

A comparison of maximal squat strength and 5-, 10-, and 20-meter sprint times, in athletes and recreationally trained men. J Strength Cond Res 26(4): 937-940, 2012-The purpose of this study was to identify whether there was a relationship between rel... Read More about A comparison of maximal squat strength and five, ten and twenty meter sprint times in Athletes and recreationally trained individuals.

Computation methods affect the reported values of in vivo human tendon stiffness (2011)
Journal Article
Pearson, S., & Onambele, G. (2012). Computation methods affect the reported values of in vivo human tendon stiffness. Journal of the Mechanical Behavior of Biomedical Materials, 5(1), 291-297. https://doi.org/10.1016/j.jmbbm.2011.08.008

Scientific validity is questionable when findings from studies cannot be used to make sense of physiological and/or biomechanical data. In particular, is the case of in vivo determination of tendon stiffness (K). Here, approaches range from taking th... Read More about Computation methods affect the reported values of in vivo human tendon stiffness.

The magnitude and character of resistance-training-induced increase in tendon stiffness at old age is gender specific (2011)
Journal Article
Onambele-Pearson, G., & Pearson, S. (2012). The magnitude and character of resistance-training-induced increase in tendon stiffness at old age is gender specific. Age : the journal of the American Aging Association, 34(2), 427-38. https://doi.org/10.1007/s11357-011-9248-y

Human tendon mechanical properties are modified with loading. Moreover, there are indications that the training response in the tendon is gender specific. The aim of the current study was to examine whether in vivo patella tendon stiffness (K) differ... Read More about The magnitude and character of resistance-training-induced increase in tendon stiffness at old age is gender specific.

Serum relaxin levels affect the in vivo properties of some but not all tendons in normally menstruating young women (2011)
Journal Article
Pearson, S., Burgess, K., & Onambele, G. (2011). Serum relaxin levels affect the in vivo properties of some but not all tendons in normally menstruating young women. Experimental Physiology, 96(7), 681-8. https://doi.org/10.1113/expphysiol.2011.057877

Relaxin (hRLX) is a hormone reported to affect collagen synthesis. Its effects are also thought to be modulated by other sex hormones, including oestrogen, which has previously been found to be associated with alterations of in vivo tendon properties... Read More about Serum relaxin levels affect the in vivo properties of some but not all tendons in normally menstruating young women.

An electromyographical comparison of trunk muscle activity during isometric trunk and dynamic strengthening exercises (2011)
Journal Article
Comfort, P., Pearson, S., & Mather, D. (2011). An electromyographical comparison of trunk muscle activity during isometric trunk and dynamic strengthening exercises. Journal of Strength and Conditioning Research, 25(1), 149-154. https://doi.org/10.1519/JSC.0b013e3181fb412f

The purpose of this study was to compare rectus abdominis and erector spinae muscle activity during isometric (prone bridge [PB] and superman [SM]) and dynamic strengthening exercises (back squat, front squat [FS], and military
press). Participants... Read More about An electromyographical comparison of trunk muscle activity during isometric trunk and dynamic strengthening exercises.

Anti-inflammatory effects of Omega 3 fatty acids on murine skeletal muscle cell differentiation (2011)
Thesis
Magee, P. Anti-inflammatory effects of Omega 3 fatty acids on murine skeletal muscle cell differentiation. (Thesis). Salford : University of Salford

Eicosapentaenoic acid (ERA) is an w-3 polyunsaturated fatty acid
(PUFA) with anti-inflammatory and anti-cachetic properties.
These properties have not previously been investigated
simultaneously with regards to skeletal muscle damage and
regenera... Read More about Anti-inflammatory effects of Omega 3 fatty acids on murine skeletal muscle cell differentiation.

Patellar tendon properties with fluctuating menstrual cycle hormones (2010)
Journal Article
Burgess, K., Pearson, S., & Onambele, G. (2010). Patellar tendon properties with fluctuating menstrual cycle hormones. Journal of Strength and Conditioning Research, 24(8), 2088-2095. https://doi.org/10.1519/JSC.0b013e3181aeb12b

Debate continues over whether skeletal muscle performance and injury risk vary over the course of the menstrual cycle. Alterations in tendon properties may play a role in the potential fluctuations of both of these variables. The aim of the current s... Read More about Patellar tendon properties with fluctuating menstrual cycle hormones.

Menstrual cycle variations in oestradiol and progesterone have no impact on in vivo medial gastrocnemius tendon mechanical properties (2009)
Journal Article
Burgess, K., Pearson, S., & Onambélé, G. (2009). Menstrual cycle variations in oestradiol and progesterone have no impact on in vivo medial gastrocnemius tendon mechanical properties. Clinical Biomechanics, 24(6), 504-509. https://doi.org/10.1016/j.clinbiomech.2009.03.011

Background: Tendon tissue contains oestrogen receptors and is therefore likely to be responsive to female sex hormones. Here we examine any effect of levels of female sex hormones associated with the menstrual cycle phase on corresponding tendon mech... Read More about Menstrual cycle variations in oestradiol and progesterone have no impact on in vivo medial gastrocnemius tendon mechanical properties.

Tendon structural and mechanical properties do not differ between genders in a healthy community-dwelling elderly population (2009)
Journal Article
Burgess, K., Pearson, S., Breen, L., & Onambélé, G. (2009). Tendon structural and mechanical properties do not differ between genders in a healthy community-dwelling elderly population. Journal of Orthopaedic Research, 27(6), 820-825. https://doi.org/10.1002/jor.20811

Elderly women are reportedly at higher risk of falling than their male counterparts. Postural balance is highly associated with fall risk and is also correlated with tendon structural and mechanical properties. Gender differences in tendon properties... Read More about Tendon structural and mechanical properties do not differ between genders in a healthy community-dwelling elderly population.

Effect of acute tensile loading on gender-specific tendon structural and mechanical properties (2009)
Journal Article
Burgess, K., Graham-Smith, P., & Pearson, S. (2009). Effect of acute tensile loading on gender-specific tendon structural and mechanical properties. Journal of Orthopaedic Research, 27(4), 510-516. https://doi.org/10.1002/jor.20768

Stretching is commonly used prior to exercise, as it is thought to reduce the risk of injury, and it is also used in the preconditioning of tendon grafts. As tendon properties have been shown to be different between genders, it is proposed that stret... Read More about Effect of acute tensile loading on gender-specific tendon structural and mechanical properties.