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Squat Jump Performance and Chiropractic Ankle Manipulation

2026年6月14日 更新者：Jeanmarie R. Burke, PhD、Northeast College of Health Sciences

The Effects of Chiropractic Ankle Manipulation on Athletic Performance of College-Aged Recreational Athletes: Randomized Controlled Trial

The goal of this clinical trial is to learn if chiropractic ankle manipulation can improve squat jump performance. It will also learn about the relationship among chiropractic ankle manipulation, ankle range of motion, and squat jump performance. The main questions it aims to answer are:

  • Does chiropractic ankle manipulation increase squat jump height?
  • Is there a relationship among chiropractic ankle manipulation, ankle range of motion, and squat jump performance?

Researchers will compare squat jump performance between subjects who receive chiropractic ankle manipulations with control subjects to see if ankle chiropractic manipulation works to improve squat jump performance.

Participants will:

  • Visit the research laboratory for one testing session to measure ankle range of motion and squat jump performance, before and after their randomly assigned intervention arm
  • Receive either a chiropractic ankle manipulations or rest quietly as the control condition during the testing session.

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

60

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • アメリカ
    • New York
      • Seneca Falls、New York、アメリカ、13148
        • 募集
        • Biomechanics Laboratory at Northeast College of Health Sciences
        • コンタクト：

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人

健康ボランティアの受け入れ

はい

説明

Inclusion Criteria

  • age range from 18 to 35 years old; and
  • participating in recreational exercise, three times a week for at least 30 minutes. Recreational exercise includes ball sports (e.g. soccer, basketball, volleyball, etc.), racket sports (e.g. tennis, pickle ball, racket ball, etc.), strength/combat sports (e.g. weight lifting, boxing, martial arts, kickboxing, etc.), endurance sports (running, cycling, rock climbing, etc.), snow/ice sports (downhill or cross-county skiing, snow shoeing, hockey, etc.), interval training (e.g., high-intensity interval training), sprint interval training, repeated sprint training etc.) or moderate-intensity aerobic activities (step classes, dance classes, hiking, etc.)

Exclusion Criteria

  • professional or amateur ranked athlete;
  • participation in water sports (swimming, water aerobics, kayaking, water skiing, etc.) to meet the recreational exercise inclusion criteria
  • acute or chronic musculoskeletal injury / condition of the feet, ankles, knees, and/or hips;
  • acute or chronic musculoskeletal injury / condition of the spine;
  • pregnancy or there is a possibility of pregnancy.
  • any diagnosed medical condition; and
  • any prescribed medications with the exceptions of birth control, anxiety, or attention-deficit/hyperactivity disorder (ADHD) medications.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

  • 主な目的：処理
  • 割り当て：ランダム化
  • 介入モデル：並列代入
  • マスキング：ダブル

武器と介入

参加者グループ / アーム
介入・治療
実験的：Chiropractic Ankle Manipulation

LEM - Lower Extremity Manipulation:

Subjects assigned to the LEM Intervention Group will receive a short lever, high velocity, low-amplitude distractive (caudal) thrust directed at the talocrural joint. The treating chiropractor will deliver the LEM to the right ankle then the left ankle. LEM is an adjustment for long axis distraction of the tibiotalar joint with the goal to improve dorsiflexion of the ankle joint.
他の：Manual Therapy Procedure: Chiropractic Ankle Manipulation
The lower extremity manipulation (LEM) procedure is a short lever, high velocity, low-amplitude distractive (caudal) thrust directed at the talocrural joint. The treating chiropractor will deliver the LEM to the right ankle then the left ankle. LEM is an adjustment for long axis distraction of the tibiotalar joint with the goal to improve dorsiflexion of the ankle joint.
他の名前：
  • Lower Extremity Manipulation
介入なし：Control
Subjects assigned to the Control Group will rest quietly, supine (face up), on the chiropractic treatment table for five (5) minutes.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Squat Jump Height
時間枠：Baseline on Day 1 to Immediately after Intervention on Day 1

Subjects will be instructed to jump upwards from the starting squat position as high as possible. Subjects will perform 3 to 6 jumps with 3 consecutive jump heights being within 5% of each other to ensure maximum jump height is achieved. There will be a one-minute rest between jumps.

  • Starting position. Subjects will assume the starting squat position with their hips at 90°, knees at 120°, and ankles at 85° as positioned by the PI. An adjustable plyometric jump box will be used to standardize the starting position. Hands will be resting across their chest with the trunk and head positioned straight ahead.
  • Squat Jump: Subjects will be instructed to jump as high as possible and land in a comfortable position. Hands will remain across the chest for the duration of

The Optojump photoelectric cell system (OptoJump) will be used to record jump height. OptoJump demonstrates strong concurrent validity and excellent test-retest reliability for the estimation of vertical jump height
Baseline on Day 1 to Immediately after Intervention on Day 1
Range of Motion of Ankle Dorsiflexion
時間枠：Baseline on Day 1 to Immediately after Treatment on Day 1 and at End of Test Session on Day 1

Knee-to-wall ankle dorsiflexion test:

  • Ankle dorsiflexion ROM (distance from wall - cm) is the maximum distance of the big toe from the wall while maintaining contact between the wall and the knee with the heel on the ground.
  • The subject will repeat the Knee-to-wall ankle dorsiflexion test three times at this maximum distance to allow the PI to record three goniometer measurements of ankle dorsiflexion ROM (degrees°).
Baseline on Day 1 to Immediately after Treatment on Day 1 and at End of Test Session on Day 1

二次結果の測定

結果測定
メジャーの説明
時間枠
Leg Muscle Power (W/Kg)
時間枠：Baseline on Day 1 to Immediately after Intervention on Day 1
Squat Jump Muscle Parameter: The Optojump will calculate an estimate of leg muscle power (W/Kg). The reliability and concurrent validity of OptoJump to measure jump height suggests that the evidence-base biomechanical formula to calculate the estimate of leg muscle power by OptoJump is reliable with face validity.
Baseline on Day 1 to Immediately after Intervention on Day 1
Contraction Velocity of Leg Muscles (mm/s), Force-Velocity Curve
時間枠：Baseline on Day 1 to Immediately after Intervention on Day 1

Squat Jump Muscle Parameter: The Gyko inertial sensor system (Gyko) will measure the velocity of the jump to calculate an estimate of the contraction velocity of leg muscles, force-velocity curve.

The reliability and concurrent validity of Gyko to measure jump height and in-turn estimate muscle function parameters is limited in the literature. The control group in the current study will allow us to address concurrent validity and reliability of Gyko to measure jump height. Jump height measured by Optojump is the gold-standard field base device. Comparison of Gyko to Optojump measurements of jump heights will determine concurrent validity of Gyko to estimate jump height. The use of evidence-base biomechanical formulas to calculate an estimate of contraction velocity of leg muscles during SQJ's depends on recording reliable and valid measurements of jump heights; and in turn, establish the reliability and face validity of Gyko to estimate muscle function parameters.
Baseline on Day 1 to Immediately after Intervention on Day 1
Rate of Force Development of Leg Muscles (N/s), Slope of the Force - Velocity Curve
時間枠：Baseline on Day 1 to Immediately after Intervention on Day 1
Squat Jump Muscle Parameter: The Gyko inertial sensor system (Gyko) will measure the velocity of the jump to calculate an estimate of the rate of force development of leg muscles, slope of the force - velocity curve The reliability and concurrent validity of Gyko to measure jump height and in-turn estimate muscle function parameters is limited in the literature. The control group in the current study will allow us to address concurrent validity and reliability of Gyko to measure jump height. Jump height measured by Optojump is the gold-standard field base device. Comparison of Gyko to Optojump measurements of jump heights will determine concurrent validity of Gyko to estimate jump height. The use of evidence-base biomechanical formulas to calculate an estimate of the rate of force development of leg muscles during SQJ's depends on recording reliable and valid measurements of jump heights; and in turn, establish the reliability and face validity of Gyko to estimate muscle function.
Baseline on Day 1 to Immediately after Intervention on Day 1

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Northeast College of Health Sciences

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年6月1日

一次修了 (推定)

2027年5月1日

研究の完了 (推定)

2027年5月1日

試験登録日

最初に提出

2026年5月31日

QC基準を満たした最初の提出物

2026年6月7日

最初の投稿 (実際)

2026年6月11日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月16日

QC基準を満たした最後の更新が送信されました

2026年6月14日

最終確認日

2026年5月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • 26-02

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いいえ

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