Change in the activity of trunk and lower limb muscles during 2000-m rowing

Oshikawa, Tomoki; Takaki, Norifumi; Nakamura, Koji; Kubota, Ren; Adachi, Gen; Akuzawa, Hiroshi; Sekine, Chie; Kaneoka, Koji

doi:10.2152/jmi.69.45

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…During the drive phase, rowers paddle by extending their lower limbs and torso from a catch position, with the oars in the water, and both lower limbs and the torso are flexed. After that, during the recovery phase, the rowers prepare for the next drive phase by flexing the lower limbs and torso while the oars are positioned in the air ( Oshikawa et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…The bilateral limb muscles, especially the shoulder muscles, back muscles, and leg muscles, are particularly important in rowing ( Thornton et al, 2017 ; Oshikawa et al, 2022 ). As during the driving phase, the muscles in these areas provide the largest source of propulsion ( Miguel et al, 2021 ; Willwacher et al, 2021 ; Oshikawa et al, 2022 ), the risk of muscle fatigue and injury increases during high-repetition and heavy-load muscle cycling ( Thornton et al, 2017 ), even with bilateral muscle asymmetry ( Buckeridge et al, 2012 ). Previous research has pointed out that bilateral asymmetry will affect rowers’ kinematics and kinetics in rowing action.…”

Section: Introductionmentioning

confidence: 99%

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Acute effects of muscle mechanical properties after 2000-m rowing in young male rowers

Chang,

Ho,

et al. 2024

PeerJ

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Background The mechanical properties of muscles, such as changes in muscle tone and stiffness, are related to sports performance and injuries. Rowers are at increased risk of muscle fatigue and injury during high-repetition and heavy-load cyclic muscle actions. In view of this, the aim of the present study was to investigate the acute effect on muscle tone and stiffness, as well as bilateral muscle asymmetry, in high school rowers after a 2000-meter rowing ergometer test. Methods Twelve young male rowers (age = 17.1 ± 0.9 years, body weight = 73.5 ± 9.7 kg) were included in the study. The data of muscle tone (frequency) and stiffness of the posterior deltoids (PD), latissimus dorsi (LD), and rectus femoris (RF) (dominant and non-dominant side) before and after a 2000-m rowing ergometer test were collected using a handheld MyotonPRO device. Results After the rowing ergometer test, the muscle tone of dominant side PD, LD, and RF were significantly increased (p < 0.05). On the other hand, the muscle stiffness of the non-dominant side LD and RF, as well as the dominant side PD, LD, and RF were significantly increased after the rowing ergometer test (p < 0.05). The muscle tone and stiffness results showed that the dominant side PD, LD, and RF were all significantly higher than the non-dominant side after the rowing ergometer test (p < 0.05), where bilateral PD and RF exhibits moderate asymmetry (5% < symmetry index < 10%). Conclusions After a high-intensity and high-load 2000-m rowing ergometer test, PD, LD, and RF showed increases in muscle tone and stiffness, as well as changes in the symmetry of bilateral muscle mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acute effects of muscle mechanical properties after 2000-m rowing in young male rowers

Chang,

Ho,

et al. 2024

PeerJ

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Comparison of trunk muscle activity during lumbar stabilization exercises on stable and unstable surfaces

Sekine,

Yamamoto,

Hirabayashi

et al. 2024

BMR

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BACKGROUND: Lumbar stabilization exercises (LSE) provide dynamic trunk stability, promote muscle strength and endurance, and improve low back pain rehabilitation and performance. OBJECTIVE: To clarify the differences in trunk muscle activity during LSEs on stable and different unstable surfaces. METHODS: Fifteen healthy males performed three exercises (elbow-toe, hand-knee, and side bridge) on stable (floor) and unstable surfaces. Muscle activity of the bilateral rectus abdominis, internal oblique, external oblique, and erector spinae were recorded. Data were compared using the Friedman test. Pairwise comparisons were performed using Wilcoxon’s signed rank test if significant differences were observed. RESULTS: In the elbow-toe exercise, muscle activity of the rectus abdominis and right internal oblique increased in the following order: floor, low-difficulty, and high-difficulty unstable surface. In the hand-knee exercise, muscle activity of the internal oblique on the lower-extremity elevated side, external oblique, and erector spinae on the upper-extremity elevated side were greater on unstable surface exercise performance. In the side bridge exercise, rectus abdominis muscle activity was highest on a high-difficulty unstable surface. CONCLUSION: Trunk muscle activity increased during exercise on unstable surfaces. Since the effects of unstable surfaces vary depending on muscle and exercise types, exercise difficulty and surface stability must be considered accordingly.

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Change in the activity of trunk and lower limb muscles during 2000-m rowing

Cited by 2 publications

References 13 publications

Acute effects of muscle mechanical properties after 2000-m rowing in young male rowers

Acute effects of muscle mechanical properties after 2000-m rowing in young male rowers

Comparison of trunk muscle activity during lumbar stabilization exercises on stable and unstable surfaces

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