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Outputs (51)

In the heat of the moment: the effects of extreme temperatures on the cognitive functioning of firefighters (2024)
Journal Article
Thompson, C., Ferrie, L., Pearson, S. J., Highlands, B., & Matthews, M. J. (in press). In the heat of the moment: the effects of extreme temperatures on the cognitive functioning of firefighters. Ergonomics, 1-15. https://doi.org/10.1080/00140139.2024.2326584

Exposure to high temperatures can have detrimental effects on cognitive processing and this is concerning for firefighters who routinely work in extreme temperatures. Whilst past research has studied the effects of heat on firefighter cognition, find... Read More about In the heat of the moment: the effects of extreme temperatures on the cognitive functioning of firefighters.

Does resistance training ameliorate cancer-related fatigue in cancer survivors? A systematic review with meta-analysis. (2023)
Journal Article
Gray, L., Sindall, P., & Pearson, S. J. (in press). Does resistance training ameliorate cancer-related fatigue in cancer survivors? A systematic review with meta-analysis. Disability and Rehabilitation, 1-10. https://doi.org/10.1080/09638288.2023.2226408

Cancer-related fatigue (CRF) is unrelenting. As neither rest nor sleep ameliorates cognitive, emotional, and physical symptoms, quality of life is diminished. This study examines resistance training (RT) effectiveness on CRF in cancer survivors. The... Read More about Does resistance training ameliorate cancer-related fatigue in cancer survivors? A systematic review with meta-analysis..

The effect of resistance training on functional capacity in middle-aged to elderly individuals with peripheral artery disease: a meta-analysis (2022)
Journal Article
Pearson, S., Sindall, P., Caldow, E., & Taberner, P. (2022). The effect of resistance training on functional capacity in middle-aged to elderly individuals with peripheral artery disease: a meta-analysis. International angiology : a journal of the International Union of Angiology, https://doi.org/10.23736/S0392-9590.22.04922-7

Peripheral artery disease (PAD) is an ischemic disease of the lower limbs, caused by atherosclerotic plaques, leading to impairments in functional capacity and reduced quality of life. This meta-analysis aimed to assess the effect of 12-week and 24-w... Read More about The effect of resistance training on functional capacity in middle-aged to elderly individuals with peripheral artery disease: a meta-analysis.

Comparisons of core temperature between a telemetric pill and heart rate estimated core temperature in firefighters (2021)
Journal Article
Pearson, S., Highlands, B., Jones, R., & Matthews, M. (2021). Comparisons of core temperature between a telemetric pill and heart rate estimated core temperature in firefighters. Safety and Health at Work, 13(1), 99-103. https://doi.org/10.1016/j.shaw.2021.11.003

Background: Firefighters may experience high environmental temperatures or carry out intensive physical tasks, or both, which leads to increased core body temperature and risk of fatalities. Hence there is a need to remotely and non-invasively monit... Read More about Comparisons of core temperature between a telemetric pill and heart rate estimated core temperature in firefighters.

Reliability of human achilles tendon stiffness measures using freehand 3-D ultrasound (2021)
Journal Article
Merza, E., Pearson, S., Lichtwark, G., Garofolini, A., & Malliaras, P. (2021). Reliability of human achilles tendon stiffness measures using freehand 3-D ultrasound. Ultrasound in Medicine and Biology, 47(4), 973-981. https://doi.org/10.1016/j.ultrasmedbio.2021.01.002

Achilles tendon (AT) stiffness is an important property of both human locomotor performance and injury mechanics. Freehand 3-D ultrasound (3-DUS) is a promising method for measuring stiffness of the Achilles tendon, particularly the free AT (2–6 cm p... Read More about Reliability of human achilles tendon stiffness measures using freehand 3-D ultrasound.

Immediate and long-term effects of mechanical loading on Achilles tendon volume : a systematic review and meta-analysis (2021)
Journal Article
Merza, E., Pearson, S., Lichtwark, G., Ollason, M., & Malliaras, P. (2021). Immediate and long-term effects of mechanical loading on Achilles tendon volume : a systematic review and meta-analysis. Journal of Biomechanics, 118, 110289. https://doi.org/10.1016/j.jbiomech.2021.110289

The Achilles tendon (AT) may experience changes in dimensions related to fluid flow under load. The extent to which fluid flow involves redistribution within or flow out of the tendon is not known and could be determined by investigating volume chang... Read More about Immediate and long-term effects of mechanical loading on Achilles tendon volume : a systematic review and meta-analysis.

Eccentric exercise, tendon thickness, pain and function in Achilles tendinopathy : a systematic review (2019)
Journal Article
Färnqvist, K., Malliaras, P., & Pearson, S. (2020). Eccentric exercise, tendon thickness, pain and function in Achilles tendinopathy : a systematic review. Journal of Sport Rehabilitation, 29(1), 107-115. https://doi.org/10.1123/jsr.2018-0353

Context: Exercise is seen as the most evidence based treatment for managing tendinopathy and although the type of exercise used to manage tendinopathy may induce adaptation in healthy tendons, it is not clear whether these adaptations occur in tendin... Read More about Eccentric exercise, tendon thickness, pain and function in Achilles tendinopathy : a systematic review.

Immediate and short-term effects of short- and long-duration isometric contractions in patellar tendinopathy (2018)
Journal Article
Pearson, S., Stadler, S., Menz, H., Morrissey, D., Scott, I., Munteanu, S., & Malliaras, P. (2020). Immediate and short-term effects of short- and long-duration isometric contractions in patellar tendinopathy. Clinical Journal of Sport Medicine, 30(4), 335-340. https://doi.org/10.1097/JSM.0000000000000625

Objectives: Isometric muscle contractions are used in the management of patellar tendinopathy to manage pain and improve function. Little is known about whether long- or short-duration contractions are optimal to improve pain. This study examined the... Read More about Immediate and short-term effects of short- and long-duration isometric contractions in patellar tendinopathy.

Patellar tendon in vivo regional strain with varying knee angle (2017)
Journal Article
Pearson, S., Mohammed, A., & Hussain, S. (2017). Patellar tendon in vivo regional strain with varying knee angle. Journal of Biomechanics, 61, 45-50. https://doi.org/10.1016/j.jbiomech.2017.06.038

Purpose: Descriptive data on the aspects of site specific in vivo tendon strain with varying knee joint angle are non-existent. The present study determines and compares surface and deep layer strain of the patellar tendon during isometric contract... Read More about Patellar tendon in vivo regional strain with varying knee angle.

Changes in tendon spatial frequency parameters with loading (2017)
Journal Article
Pearson, S., Engel, A., & Bashford, G. (2017). Changes in tendon spatial frequency parameters with loading. Journal of Biomechanics, 57, 136-140. https://doi.org/10.1016/j.jbiomech.2017.03.017

To examine and compare the loading related changes in micro-morphology of the patellar tendon. Fifteen healthy young males (age 19±3yrs, body mass 83±5kg) were utilised in a within subjects matched pairs design. B mode ultrasound images were taken in... Read More about Changes in tendon spatial frequency parameters with loading.

High-intensity interval training vs. moderate-intensity continuous training in the prevention/management of cardiovascular disease (2016)
Journal Article
Hussain, S., Macaluso, A., & Pearson, S. (2016). High-intensity interval training vs. moderate-intensity continuous training in the prevention/management of cardiovascular disease. Cardiology in Review, 24(6), 273-281. https://doi.org/10.1097/CRD.0000000000000124

Moderate-intensity continuous training (MICT) has long been considered the most effective exercise treatment modality for the prevention and management of cardiovascular disease, but more recently high-intensity interval training (HIIT) has emerged i... Read More about High-intensity interval training vs. moderate-intensity continuous training in the prevention/management of cardiovascular disease.

High intensity interval training vs moderate intensity continuous training in the management of metabolic type disease (2015)
Journal Article
Pearson, S., Macaluso, A., & Hussain, S. (2015). High intensity interval training vs moderate intensity continuous training in the management of metabolic type disease. MOJ anatomy & physiology, 1(5), 27-33. https://doi.org/10.15406/mojap.2015.01.00027

Previously, the use of moderate-intensity continuous training (MICT) has generally been considered the most beneficial exercise treatment modality for the prevention/management of metabolic type disease. More re... Read More about High intensity interval training vs moderate intensity continuous training in the management of metabolic type disease.

A device for characterising the mechanical properties of the plantar soft tissue of the foot (2015)
Journal Article
Parker, D., Cooper, G., Pearson, S., Crofts, G., Howard, D., Busby, P., & Nester, C. (2015). A device for characterising the mechanical properties of the plantar soft tissue of the foot. Medical Engineering and Physics, 37(11), 1098-1104. https://doi.org/10.1016/j.medengphy.2015.08.008

The plantar soft tissue is a highly functional viscoelastic structure involved in transferring load to the human body during walking. A Soft Tissue Response Imaging Device was developed to apply a vertical compression to the plantar soft tissue whils... Read More about A device for characterising the mechanical properties of the plantar soft tissue of the foot.

A review on the mechanisms of blood-flow restriction resistance training-induced muscle hypertrophy (2015)
Journal Article
Pearson, S., & Hussain, S. (2015). A review on the mechanisms of blood-flow restriction resistance training-induced muscle hypertrophy. Sports Medicine, 45(2), 187-200. https://doi.org/10.1007/s40279-014-0264-9

It has traditionally been believed that resistance training can only induce muscle growth when the exercise intensity is greater than 65% of the 1-repetition maximum (RM). However, more recently, the use of low-intensity resistance exercise with bloo... Read More about A review on the mechanisms of blood-flow restriction resistance training-induced muscle hypertrophy.

Region-specific tendon properties and patellar tendinopathy : a wider understanding (2014)
Journal Article
Pearson, S., & Hussain, S. (2014). Region-specific tendon properties and patellar tendinopathy : a wider understanding. Sports Medicine, 44(8), 1101-1112. https://doi.org/10.1007/s40279-014-0201-y

Patellar tendinopathy is a common painful musculoskeletal disorder with a very high prevalence in the athletic population that can severely limit or even end an athletic career. To date, the underlying pathophysiology leading to the condition remains... Read More about Region-specific tendon properties and patellar tendinopathy : a wider understanding.

Regional strain variations in the human patellar tendon (2014)
Journal Article
Pearson, S., Ritchings, R., & Mohamed, A. (2014). Regional strain variations in the human patellar tendon. Medicine and Science in Sports and Exercise, 46(7), 1343-1351. https://doi.org/10.1249/MSS.0000000000000247

Purpose: Characteristics of localized tendon strain in vivo are largely unknown. The present study examines local tendon strain between the deep, middle, and surface structures at the proximal and distal aspects of the patellar tendon during ramped i... Read More about Regional strain variations in the human patellar tendon.

Which methods best predict performance? (2014)
Journal Article
Comfort, P., & Pearson, S. (2014). Which methods best predict performance?. Journal of Strength and Conditioning Research, 28(6), 1565-1572. https://doi.org/10.1519/JSC.0000000000000394

Athletes with a higher body mass (BM) tend to be stronger, with ratio scaling possibly eliminating this effect. The aim of this study was to compare relationships between sprint performances with scaled measures of strength and power. Fifteen profess... Read More about Which methods best predict performance?.

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)
Conference Proceeding
Parker, D., Cooper, G., Pearson, S., Howard, D., Crofts, G., & Nester, C. (2012). In vivo measurement of the biomechanical properties of plantar soft tissues under simulated gait conditions. . https://doi.org/10.1186/1757-1146-5-S1-O39

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.

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.

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.

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.

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.

In vivo tendon mechanical and structural properties : adaptability and influencing factors (2009)
Thesis
Burgess, K. In vivo tendon mechanical and structural properties : adaptability and influencing factors. (Thesis). University of Salford

The central aim of this thesis was to expand on the current knowledge of factors which influence human tendon properties. It is shown here that tendon elongation is 72% greater and calculated tendon stiffness 43% (p0.05).

The applicability of ultrasound imaging in the assessment of dynamic patella tracking: a preliminary investigation (2008)
Journal Article
Herrington, L., & Pearson, S. (2008). The applicability of ultrasound imaging in the assessment of dynamic patella tracking: a preliminary investigation. ˜The œKnee (Amsterdam. Online), 15, 125-127

The purpose of the study was to examine the effect of muscle stimulation of the Vastus Medialis Oblique (VMO) and Vastus Laterialis (VL) muscles on patella position in-vivo assessed by ultrasound scanning. Also to assess the reliability of the techn... Read More about The applicability of ultrasound imaging in the assessment of dynamic patella tracking: a preliminary investigation.

The omega-3 fatty acid, eicosapentaenoic acid (EPA), prevents the damaging effects of tumour necrosis factor (TNF)-alpha during murine skeletal muscle cell differentiation (2008)
Journal Article
Magee, P., Pearson, S., & Allen, J. (2008). The omega-3 fatty acid, eicosapentaenoic acid (EPA), prevents the damaging effects of tumour necrosis factor (TNF)-alpha during murine skeletal muscle cell differentiation. Lipids in Health and Disease, 7(1), 24. https://doi.org/10.1186/1476-511X-7-24

Background: Eicosapentaenoic acid (EPA) is a -3 polyunsaturated fatty acid with antiinflammatory and anti-cachetic properties that may have potential benefits with regards to skeletal muscle atrophy conditions where inflammation is present. It is al... Read More about The omega-3 fatty acid, eicosapentaenoic acid (EPA), prevents the damaging effects of tumour necrosis factor (TNF)-alpha during murine skeletal muscle cell differentiation.

Gender-specific in vivo measurement of the structural and mechanical properties of the human patellar tendon (2007)
Journal Article
Onambele, G., Burgess, K., & Pearson, S. (2007). Gender-specific in vivo measurement of the structural and mechanical properties of the human patellar tendon. Journal of Orthopaedic Research, 25(12), 1635-1642. https://doi.org/10.1002/jor.20404

Human patellar tendon stress (σ), strain (ε), stiffness (K), and tensile or Young's modulus (E), are determined in vivo through voluntary isometric contractions monitored with B-mode ultrasonography. The limitations in previous studies are: (1) they... Read More about Gender-specific in vivo measurement of the structural and mechanical properties of the human patellar tendon.

Plyometric vs. isometric training influences on tendon properties and muscle output (2007)
Journal Article
Burgess, K., Connick, M., Graham-Smith, P., & Pearson, S. (2007). Plyometric vs. isometric training influences on tendon properties and muscle output. Journal of Strength and Conditioning Research, 21(3), 986-989

The purpose of this study was to concurrently determine the effect that plyometric and isometric training has on tendon stiffness (K) and muscle output characteristics to compare any subsequent changes. Thirteen men trained the lower limbs either ply... Read More about Plyometric vs. isometric training influences on tendon properties and muscle output.

Creep and the in vivo assessment of human patellar tendon mechanical properties (2007)
Journal Article
Pearson, S., Burgess, K., & Onambele, G. (2007). Creep and the in vivo assessment of human patellar tendon mechanical properties. Clinical Biomechanics, 22(6), 712-717. https://doi.org/10.1016/j.clinbiomech.2007.02.006

Background: Owing to the viscoelastic nature of tendons it may be that the total excursion and hence strain experienced by the tendon under load may be affected by the duration of contraction. Here we examine the effect of contraction duration on the... Read More about Creep and the in vivo assessment of human patellar tendon mechanical properties.

Time-of-day effect on patella tendon stiffness alters vastus lateralis fascicle length but not the quadriceps force-angle relationship (2007)
Journal Article
Onambele-Pearson, G., & Pearson, S. (2007). Time-of-day effect on patella tendon stiffness alters vastus lateralis fascicle length but not the quadriceps force-angle relationship. Journal of Biomechanics, 40(5), 1031-1037. https://doi.org/10.1016/j.jbiomech.2006.04.001

Aim: To examine the time-of-day (TOD) effect on torque–force/angle, fibre length (FL), tendon stiffness (K), stress, and strain using the quadriceps muscle–tendon complex as a model. Methods: Twelve healthy young men (aged 27±2.0 years) were stu... Read More about Time-of-day effect on patella tendon stiffness alters vastus lateralis fascicle length but not the quadriceps force-angle relationship.

Power output and muscle myosin heavy chain composition in young and elderly men (2006)
Journal Article
Pearson, S., Cobbold, M., Orrell, R., & Harridge, S. (2006). Power output and muscle myosin heavy chain composition in young and elderly men. Medicine and Science in Sports and Exercise, 38(9), 1601-1607. https://doi.org/10.1249/01.mss.0000227638.75983.9d

Purpose: Aging is associated with a decline in muscle volume, power output, and the velocity at which peak power (Vopt) occurs. The current study aimed to examine the relationship between lower-limb power output characteristics, muscle myosin heavy c... Read More about Power output and muscle myosin heavy chain composition in young and elderly men.

Influence of time of day on tendon compliance and estimations of voluntary activation levels (2006)
Journal Article
Pearson, S., & Onambele, G. (2006). Influence of time of day on tendon compliance and estimations of voluntary activation levels. Muscle and Nerve, 33(6), 792-800. https://doi.org/10.1002/mus.20529

We investigated the importance of tendon stiffness on estimations of central activation capacity (CAC). Patella tendon-force elongation relationship, quadriceps torque, and response to 50-micros, 100-HZ electrical twitch doublets were studied at appr... Read More about Influence of time of day on tendon compliance and estimations of voluntary activation levels.

Acute changes in knee-extensors torque, fiber pennation, and tendon characteristics. (2005)
Journal Article
Pearson, S., & Onambele, G. (2005). Acute changes in knee-extensors torque, fiber pennation, and tendon characteristics. Chronobiology International, 22(6), 1013-1027. https://doi.org/10.1080/07420520500397900

The aim of the current study was to examine the relationships between quadriceps torque, vastus lateralis pennation angle (theta), and patella tendon stiffness (K) at 07:45 and 17:45 h. Using short-duration static contractions, simultaneous recording... Read More about Acute changes in knee-extensors torque, fiber pennation, and tendon characteristics..

Power output of the lower limb during variable inertial loading : A comparison between methods using single and repeated contractions (2004)
Journal Article
Pearson, S., Cobbold, M., & Harridge, S. (2004). Power output of the lower limb during variable inertial loading : A comparison between methods using single and repeated contractions. European Journal of Applied Physiology, 92(1-2), 176-181. https://doi.org/10.1007/s00421-004-1046-0

The power-inertial load relationship of the lower limb muscles was studied during a single leg thrust using the Modified Nottingham Power Rig (mNPR) and during cycling exercise in nine young male subjects. The relationship between peak power and iner... Read More about Power output of the lower limb during variable inertial loading : A comparison between methods using single and repeated contractions.

Muscle function in elite master weightlifters (2002)
Journal Article
Pearson, S., Young, A., Macaluso, A., Devito, G., Nimmo, M., Cobbold, M., & Harridge, S. (2002). Muscle function in elite master weightlifters. Medicine and Science in Sports and Exercise, 34(7), 1199-1206. https://doi.org/10.1097/00005768-200207000-00023

Purpose: To determine whether explosive power and isometric strength of the lower-limb muscles in elite master Olympic weightlifters declines at a similar rate to nontrained healthy controls with increasing age. Methods: 54 elite level masters weight... Read More about Muscle function in elite master weightlifters.

A variable inertial system for measuring the contractile properties of human muscle (2001)
Journal Article
Pearson, S., Harridge, S., Grieve, D., Donald, W., Young, A., & Woledge, R. (2001). A variable inertial system for measuring the contractile properties of human muscle. Medicine and Science in Sports and Exercise, 33(12), 2072-2076. https://doi.org/10.1097/00005768-200112000-00015

Purpose: A flywheel system of variable inertia is described for inferring the mechanical properties of human muscle during a single explosive movement. Methods: The system consists of a lightweight aluminum disk mounted on a shaft onto which a dri... Read More about A variable inertial system for measuring the contractile properties of human muscle.

Lower limb stiffness: Considerations for female athletes
Journal Article
McMahon, J., Comfort, P., & Pearson, S. Lower limb stiffness: Considerations for female athletes. Strength and Conditioning Journal, 34(5), 70-73. https://doi.org/10.1519/SSC.0b013e318268131f

Women demonstrate lower limb stiffness recruitment strategies, which may predispose them to greater sustainment of lower limb injuries, particularly to the anterior cruciate ligament. To positively alter such strategies in women, lower limb muscle st... Read More about Lower limb stiffness: Considerations for female athletes.