Eur J Appl Physiol June 2023 PMID 36795130

Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise.

Hiroku Mitsuya, Koichi Nakazato, Takayoshi Hakkaku, Takashi Okada

Mentions

45
Peak: 31 in Feb 2023
across 3 sources since Feb 2023

Extended reach

873,151
potential audience

Total likes

10,325

Video views

520,008

Mentions per month

Feb 2023 – Oct 2025

Where it's discussed

  • X / Twitter40 posts
  • Facebook3 posts
  • YouTube2 videos

AI synopsis

What people are saying

Discussions highlight the article's focus on how hip flexion angles influence muscle activity, with comments like 'Very interesting!' and references to regional muscle activation, indicating a positive reception. The tone is generally curious and supportive, emphasizing the study's relevance to exercise and muscle hypertrophy, though some remain skeptical and call for further research.

AgreementModerate agreement

Most discussions acknowledge the significance of the article, with some explicitly supporting the findings, such as mentions that the research offers interesting insights into muscle activation at different angles.

InterestModerate interest

The posts show a mild level of engagement, with commenters expressing curiosity about the implications but not deeply analyzing the methodology or practical applications.

EngagementModerate engagement

Several discussions reference the topic broadly, like the activation of different muscle regions and potential effects on training or hypertrophy, indicating moderate conversational involvement.

ImpactModerate impact

Participants believe the study could influence understanding of exercise techniques and muscle training, suggesting a moderate but meaningful potential to affect fitness practices or further research.

Abstract in brief

  • The study found that the angle of hip flexion during leg extension exercises affects how much different parts of the rectus femoris muscle (a muscle in the thigh) are activated, with specific regions being more engaged at certain angles.
  • When the hip flexion angle was set at 80 degrees, the middle part of the rectus femoris showed less muscle activity compared to other angles, indicating less activation at this position.
  • The subjective feeling of muscle contraction didn't always match the actual muscle activity measured, suggesting that relying solely on how muscles feel during exercise might not accurately reflect true muscle activation, and specific angles like 40 degrees may be more effective for targeted training.]

Top posts

Most liked on X and Bluesky
Brad Schoenfeld, PhD
@BradSchoenfeld · X

Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during the leg extension. Perhaps a (partial) explanation for regional muscular hypertrophy? https://t.co/rfjOnB466N

Feb 18, 2023 · 125 likes · 18 shares · 95,640 followers View post →
バズーカ岡田(Bazooka Okada)
@okadatakashi_AT · X

EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 https://t.co/CIlMxIVugN https://t.co/gdlwIxRmfT

Feb 16, 2023 · 91 likes · 10 shares · 61,742 followers View post →
三矢 紘駆
@Hiroku_Mitsuya · X

European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise」 https://t.co/xkeRPyUPt7 https://t.co/JmCLfURpgR https://t.co/3p9QQah1Qf

Feb 17, 2023 · 33 likes · 6 shares · 513 followers View post →
aquieojapa
@aquieojapa · X

“Sentir” o músculo não é parâmetro para hipertrofia. “Os resultados elucidaram que a percepção subjetiva de esforço em certas regiões do músculo NÃO corresponderam aos resultados da ressonância magnética” https://t.co/vy7dQirNzG

Apr 4, 2023 · 26 likes · 2 shares · 265 followers View post →
皮毛
@Fish2djdbsivay · X

这文章要了日本所有健身网红的命啊 https://t.co/f4ecGwPS5c

Aug 8, 2023 · 2 likes · 19,087 followers View post →
おっさん
@518_taiko · X

昨日?出てた大腿直筋の動員を股関節角度0.40.80度のレッグexで比較した研究  最近話題なってた股関節伸展させるケツアゲエクステンションと考えると面白いな〜と思った(小並感) あと収縮感は大事やけど、デカくするって意味では当てならんことも多いよな〜って感想 https://t.co/5RZpz6EKPv

Feb 20, 2023 · 2 likes · 1,122 followers View post →

All mentions

Victor Lima
@personalvictor · X

Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise https://t.co/AlMI9kmW4Q

May 18, 2024 · 1,145 followers View post →
MaxFunctionFitness
@MaxFunctionFit · X

https://t.co/h2IfAkOnMr https://t.co/h6wA6Y0Bc0

Aug 18, 2023 · 38 followers View post →
理学療法士_海津陽一 Ph.D.
@copellist · X

■ Ref info: Mitsuya, Hiroku, et al. "Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise." European Journal of Applied Physiology (2023): 1-11. ■ Ref link: https://t.co/Jmvkbdjma2 ■ note link: https://t.co/BoBeRAHyoC

Aug 13, 2023 · 10,730 followers View post →
皮毛
@Fish2djdbsivay · X

这文章要了日本所有健身网红的命啊 https://t.co/f4ecGwPS5c

Aug 8, 2023 · 2 likes · 19,087 followers View post →
たっく⚾️
@takjw · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Apr 28, 2023 · 18 shares · 382 followers View post →
nanda ˢᵖᶠᶜ
@debugandonanda · X

RT @yvesporto8: “Sentir” o músculo não é parâmetro para hipertrofia. “Os resultados elucidaram que a percepção subjetiva de esforço em ce…

Apr 4, 2023 · 2 shares · 1,589 followers View post →
a isadora, powerlifter
@aisadora_ · X

RT @yvesporto8: “Sentir” o músculo não é parâmetro para hipertrofia. “Os resultados elucidaram que a percepção subjetiva de esforço em ce…

Apr 4, 2023 · 2 shares · 6,242 followers View post →
aquieojapa
@aquieojapa · X

“Sentir” o músculo não é parâmetro para hipertrofia. “Os resultados elucidaram que a percepção subjetiva de esforço em certas regiões do músculo NÃO corresponderam aos resultados da ressonância magnética” https://t.co/vy7dQirNzG

Apr 4, 2023 · 26 likes · 2 shares · 265 followers View post →
ʕ •ᴥ•ʔ
@sirIronWaffle · X

Idk….. it’s interesting but the line of pull and more efficient pennation angles are so marginally small it doesn’t seem to explain this,,, I’d be skeptical until I see more research to back it up https://t.co/WGxLu6x79h

Mar 1, 2023 · 71 followers View post →
Mind Your Science!
@MindYourSci · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 22, 2023 · 18 shares · 133 followers View post →
おっさん
@518_taiko · X

昨日?出てた大腿直筋の動員を股関節角度0.40.80度のレッグexで比較した研究  最近話題なってた股関節伸展させるケツアゲエクステンションと考えると面白いな〜と思った(小並感) あと収縮感は大事やけど、デカくするって意味では当てならんことも多いよな〜って感想 https://t.co/5RZpz6EKPv

Feb 20, 2023 · 2 likes · 1,122 followers View post →
寺田 健太郎(Kentaro Terada)
@ken89t · X

RT @Hiroku_Mitsuya: European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectu…

Feb 19, 2023 · 6 shares · 888 followers View post →
joe brtan
@jbrtan · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 19, 2023 · 18 shares · 525 followers View post →
Michael MacDiarmada
@m_macdiarmada · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 19, 2023 · 18 shares · 506 followers View post →
José Antonio Benítez Muñoz
@jabenitezm4 · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 19, 2023 · 18 shares · 437 followers View post →
Lorenzo S.Wayne
@LorenzoSWayne · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 19, 2023 · 18 shares · 51 followers View post →
Mikhail Cerqueira
@MKSC_corinthian · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 19, 2023 · 18 shares · 18 followers View post →
OJSN_sub
@OJSN_sub · X

Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise - PubMed - https://t.co/dN2pV28UtT

Feb 18, 2023 · 674 followers View post →
OJSN_sub
@OJSN_sub · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 674 followers View post →
Helder santos
@Helder_trainer · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 91 followers View post →
空手ひで
@Mahha_Kick · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 2,205 followers View post →
三矢 紘駆
@Hiroku_Mitsuya · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 513 followers View post →
joao evandro martins
@joaofisiologia · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 101 followers View post →
s_vahid hosseini
@s_vahidhosseini · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 85 followers View post →
バズーカ岡田(Bazooka Okada)
@okadatakashi_AT · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 61,742 followers View post →
Arlete Bernal fisio
@arlete_bernal · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 195 followers View post →
Daniel Moreno
@DanielG73818380 · X

RT @BradSchoenfeld: Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during…

Feb 18, 2023 · 18 shares · 89 followers View post →
Brad Schoenfeld, PhD
@BradSchoenfeld · X

Very interesting! Suggests that different segments of the rectus femoris are activated at different joint angles during the leg extension. Perhaps a (partial) explanation for regional muscular hypertrophy? https://t.co/rfjOnB466N

Feb 18, 2023 · 125 likes · 18 shares · 95,640 followers View post →
阿部健太郎
@kentaroabe5 · X

RT @Hiroku_Mitsuya: European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectu…

Feb 17, 2023 · 6 shares · 348 followers View post →
田中久重@ロードスター楽しい
@Hisashige_Daken · X

RT @Hiroku_Mitsuya: European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectu…

Feb 17, 2023 · 6 shares · 147 followers View post →
バズーカ岡田(Bazooka Okada)
@okadatakashi_AT · X

RT @Hiroku_Mitsuya: European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectu…

Feb 17, 2023 · 6 shares · 61,742 followers View post →
三矢 紘駆
@Hiroku_Mitsuya · X

European Journal of Applied Physiologyに論文が掲載されました。 「Hip flexion angle affects longitudinal muscle activity of the rectus femoris in leg extension exercise」 https://t.co/xkeRPyUPt7 https://t.co/JmCLfURpgR https://t.co/3p9QQah1Qf

Feb 17, 2023 · 33 likes · 6 shares · 513 followers View post →
Riri
@Riri_ruru13579 · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 17, 2023 · 10 shares · 6,495 followers View post →
イトッポイド
@itopoid · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 7,117 followers View post →
檀ゆま
@kenshin_woman · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 1,476 followers View post →
空手ひで
@Mahha_Kick · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 2,205 followers View post →
まりも Pħ.D・。・
@bernal_hh · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 76 followers View post →
わるいカビゴン
@bodebirusuki · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 5,034 followers View post →
チキンレッグSAIZOU
@fit_saizo · X

RT @okadatakashi_AT: EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 http…

Feb 16, 2023 · 10 shares · 169 followers View post →
バズーカ岡田(Bazooka Okada)
@okadatakashi_AT · X

EJAPに採択された論文が公開されました。大腿直筋近位を鍛えるには、レッグエスクテンションで骨盤を操作するのが大切です。 詳しくは筆頭著者の @Hiroku_Mitsuya 先生(岡田研究室一期生)からの説明を待ちましょう。 https://t.co/CIlMxIVugN https://t.co/gdlwIxRmfT

Feb 16, 2023 · 91 likes · 10 shares · 61,742 followers View post →