Effects of Running Shoe Sole Hardness on Vibration and Neuromuscular Fatigue During a Half-marathon Run on a Treadmill
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Change of the damping coefficient (in percent %).
研究概览
简要总结
During running, each contact between the foot and the ground causes an impact. Ground reaction forces (GRF) are considered as an input into the musculoskeletal system. It involves a sudden deceleration in the lower limb packages (including muscles) which generates Soft-Tissue Vibrations (STV). The body is able to attenuate Soft-Tissue Vibrations (STV) but this capability decreases with fatigue. STV could be minimize by improving shoe midsole hardness.
详细描述
Only 4 studies have studied Soft-Tissue Vibrations (STV) with a distance not exceeding 10 km and without evaluating the potential influence of the shoe. Thus, the effects of shoe midsole hardness on Soft-Tissue Vibrations (STV) and neuromuscular fatigue at the end of an intense and/or long run remains unknown.
The purpose is to compare two shoes whose only midsole hardness differs during a half-marathon on Soft-Tissue Vibrations (STV), neuromuscular fatigue and running kinetics.
Maybe the shoe ensuring a better STV damping of the medial gastrocnemius muscle would reduce neuromuscular fatigue and improve comfort.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Endurance runners doing a long run of at least 20 km once a week.
- •Affiliated or beneficiaries of a social security plan.
- •Have freely given their written consent.
- •Not participating in a competition during the study period.
- •Shoe size 37 to 46
排除标准
- •Any subject who has been injured in the 3 months preceding the protocol
- •Any subject with chronic joint pathologies (e.g., repeated sprains, patellar or ligament problems) or cardiac pathologies.
- •Any subject with chronic or central neurological pathologies
- •Any subject participating at the same time in another medical interventional experiment
- •Any subject who has taken corticosteroids within 3 months (inhalation, infiltration or history of prolonged corticosteroid therapy).
- •Any subject deprived of liberty or under legal protection (guardianship, curatorship, safeguard of justice, family habilitation).
- •Any subject declaring to have taken products prohibited by the World Anti-Doping Agency
结局指标
主要结局
Change of the damping coefficient (in percent %).
时间窗: From the beginning to the end of the 21 km race.
The main evaluation criterion will be the relative variation (in percent %) of the damping coefficient (in /s) of the medial gastrocnemius muscle measured with an accelerometer, at the beginning (the first five minutes) and at the end (the last five minutes) of 21 km at a speed corresponding to 70% of the maximum aerobic speed (MAS) on a treadmill, carried out by experienced amateurs during two shoe conditions: soft and firm sole.
次要结局
- Evaluation of improved vibration damping on neuromuscular fatigue : isometric force(From the beginning to the end of the 21 km race.)
- Evaluation of improved vibration damping on neuromuscular fatigue : plantar flexors.(From the beginning to the end of the 21 km race.)
- Biomechanical parameters measurement : Spatio-temporal parameters (second)(Kilometers : 1st, 3rd, 6th, 9th, 12th, 15th, 18th, 21st.)
- Temporal evolution of the energy cost measurement(From the beginning to the end of the 21 km race.)
- Temporal evolution of vibrations measurements.(Kilometers : 1st, 3rd, 6th, 9th, 12th, 15th, 18th, 21st)
- Evaluation of improved vibration damping on neuromuscular fatigue : level of voluntary activation.(From the beginning to the end of the 21 km race.)
- Evaluation of improved vibration damping on neuromuscular fatigue : jerk amplitude.(From the beginning to the end of the 21 km race.)
- Biomechanical parameters measurement : Ground reaction forces (Newton)(Kilometers : 1st, 3rd, 6th, 9th, 12th, 15th, 18th, 21st.)