An 8-Week Running Training Program Modifies Impact Accelerations during Running

Pérez-Soriano, Pedro; Lucas-Cuevas, AG; Ji, Priego-Quesada; Sanchis-Sanchis, Roberto; Cambronero-Resta, M; Llana-Belloch, Salvador; Fj, Oficial-Casado; Encarnación-Martínez, Alberto

doi:10.4172/2324-9080.1000283

Cited by 4 publications

(7 citation statements)

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“…Liew et al [44] showed that running with a backpack load of 20% of the body weight changes ankle, knee, and hip angles, which would support the idea that runners adjust their lower-extremity technique to cope with the added weight [15]. Consequently, impact acceleration levels would also be modified, because changes in running technique modify impact acceleration [11]. However, changes found by Liew et al [44] were produced when running at 4 and 5 m/s, but not when participants ran at 3 m/s, which is a speed close to our study speed.…”

Section: Discussionmentioning

confidence: 98%

“…Prolonged exposure to high acceleration rates and magnitudes during long distance running has been associated with an increased injury rate because the musculoskeletal system is less effective in attenuating these impacts at the end of a race due to fatigue [25,40]. For this reason, impact acceleration analysis has gained attention for the assessment of equipment [21,41], training [11], or running technique [42]. Moreover, Pérez-Soriano et al [11] explained that not only a high impact acceleration peak, but also high levels of acceleration rate, could increase the probability of injuries during running.…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, impact acceleration analysis has gained attention for the assessment of equipment [21,41], training [11], or running technique [42]. Moreover, Pérez-Soriano et al [11] explained that not only a high impact acceleration peak, but also high levels of acceleration rate, could increase the probability of injuries during running. This is because an impact that is transmitted more quickly may be more difficult to attenuate than one of the same magnitude that is transmitted more slowly [11,43].…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, Pérez-Soriano et al [11] explained that not only a high impact acceleration peak, but also high levels of acceleration rate, could increase the probability of injuries during running. This is because an impact that is transmitted more quickly may be more difficult to attenuate than one of the same magnitude that is transmitted more slowly [11,43]. In this sense, Milner et al [25] found a strong correlation between loading rates and tibial shock, so that runners with a history of stress fractures showed a higher acceleration rate than uninjured athletes.…”

Section: Discussionmentioning

confidence: 99%

“…As a result, a temporary or permanent interruption of exercise (and even inability to work) because of injuries can occur, leading in many cases to the need for medical treatment, of which direct costs may even exceed EUR 1300 [9]. For this reason, the running technique is important not only to improve running economy but also to increase movement efficacy, which is related to the probability of suffering injuries [10,11]. In this sense, it has been suggested that the swinging motion of the arms is related to stability and balance during human locomotion [12], and a unilateral arm swing restriction during running may influence the injury risk caused by defective lower extremity mechanics [13].…”

Section: Introductionmentioning

confidence: 99%

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Acute Effects on Impact Accelerations Running with Objects in the Hand

Sanchis-Sanchis

Encarnación-Martínez

Priego-Quesada

et al. 2021

Life

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Amateur runners usually run carrying implements in their hands (keys, a mobile phone, or a bottle of water). However, there is a lack of literature about the effects of different handloads on impact accelerations. Thus, this study aimed to analyse the effects of carrying different objects in the hand on impact accelerations during running. Nineteen male recreational runners (age 24.3 ± 6.8 years, training volume of 25 ± 7.38 km/week) performed twenty minutes of running on a treadmill at 2.78 m/s with four different conditions: no extra weight, with keys, with a mobile phone, and with a bottle of water. Impact acceleration and spatio-temporal parameters were analysed through a wireless triaxial accelerometry system composed of three accelerometers: two placed in each tibia and one placed on the forehead. A higher tibia acceleration rate in the dominant leg was observed when participants ran holding both a mobile phone (p = 0.027; ES = 0.359) and a bottle of water (p = 0.027; ES = 0.359), compared to no extra weight. No changes were observed in peak acceleration, acceleration magnitude, and shock attenuation in any other conditions. Likewise, neither stride frequency nor step length was modified. Our results suggest that recreational runners should not worry about carrying objects in their hands, like a mobile phone or a bottle of water, in short races because their effect seems minimal.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Acute Effects on Impact Accelerations Running with Objects in the Hand

Sanchis-Sanchis

Encarnación-Martínez

Priego-Quesada

et al. 2021

Life

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Evaluation of impact-shock on gait after the implementation of two different training programs in older adults

Sanchis-Sanchis

Blasco-Lafarga

Camilo

et al. 2020

Clinical Biomechanics

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Background: Gait is negatively affected with increasing age. It is widely accepted that training produces physical-functional improvements in older adults, which can be assessed with numerous physical-functional tests. However, very few studies have been carried out using accelerometry to analyse the training effect on kinetic and kinematic variables in older adults, and there is no one that investigate the effects of two different training programs. Therefore, the aim of this study is to analyse the effects of an interval-walking program and a multicomponent program on the acceleration impacts, shock attenuation, step-length, stride frequency, and gait speed in older adults. Methods: 23 participants were divided into multicomponent training group [n = 12, 7 female, 71.58 (4.56) years] and interval-walking group [n = 11, 6 female, 69.64 (3.56) years]. We evaluated the participants using three triaxial accelerometers, placing one on the distal end of each tibia and one on the forehead. Findings: After 14 weeks' of training, the maximum acceleration values both for the head accelerometer and for the non-dominant tibia, as well as the attenuation in the same leg, increased in the multicomponent training group. The maximum acceleration values for the head and the stride frequency also increased in the intervalwalking group. Lower limb strength improved in both groups. Interpretation: Given the benefits we found for each of these programs, we encourage their consideration when planning older adults training programs and suggest that multicomponent programs should be introduced prior to the start of walking-based programs.

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