The Effects of Red Spinach Extract on Physical Performance Following Chronic Resistance Training in Trained Males

The Effects of Red Spinach Extract on Health on Physical Performance Following Chronic Resistance Training in Trained Males

Red Spinach is a natural food which is a rich source of nitrates, which are beneficial in hemodynamics, cardiovascular function, and have natural hypotensive and antianginal effects . In recent research, Red spinach extract has been shown to be beneficial in acute exercise performance. However, currently it is unclear how these acute increases in performance may translate to long term training adaptations.

This research study is designed to measure the effects of red spinach extract (RSE) on markers of physical performance, body composition, and health following chronic resistance training and anaerobic exercise.

Study Overview

• Status: Completed
• Conditions: Sports
• Intervention / Treatment: Dietary supplement: Placebo; Dietary supplement: Red Spinach Extract (RSE)

Detailed Description

The investigators aim to measure muscle strength, athletic performance, body composition, and muscle size in two groups of adults before and after 11 weeks of intervention in a randomized, double blinded study. One group (n=15 ) will receive an intervention of resistance exercise and a Red Spinach Extract supplement, and the other group (n=15) will receive resistance exercise and a placebo (maltodextrin).

• Study Type: Interventional
• Enrollment (Actual): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Tennessee
    • Nashville, Tennessee, United States, 37215
      • Jeremy Townsend

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 34 years (ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• 18-35 years old
• At least 1 year of resistance training experience
• Are free of musculoskeletal injuries
• Are not taking medications that may interfere with study measurements

Exclusion Criteria:

• Participant that cannot take either the RSE or placebo supplement will be excluded, as this will be a double-blind study.
• Furthermore, participants that cannot participate in pre- and post-research testing, and/or those that cannot commit to regular training sessions will be excluded.
• Inability to perform physical exercise (determined by health and activity questionnaire)
• Taking any other nutritional supplement or performance enhancing drug.
• Any chronic illness that causes continuous medical care.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: BASIC_SCIENCE
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: DOUBLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
PLACEBO_COMPARATOR: Placebo	Dietary supplement: Placebo; Oral placebo capsules will be taken consisting of maltodrextrin daily for 11 weeks
EXPERIMENTAL: Red Spinach Extract	Dietary supplement: Red Spinach Extract (RSE); Oral capsules containing 2g of Red Spinach Extract will be consumed daily for 11 weeks

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Muscular Strength	Muscular strength will be assessed via bench press 1-repetition maximum	11 weeks
Muscular Hypertrophy	Muscle thickness of the Rectus femoris and vastus lateralis will be assessed via ultrasonography. Thickeness will be reported in cm.	11 weeks
Body Composition	Lean Body Mass, Fat Mass, and Bone Mineral Content will be assessed via Dual X-ray absorptiometry (DXA)	11 weeks
Wingate Anaerobic (WnT) Cycle test performance	A 30-second WnT test will be used to assess Average power, peak power, and fatiuge index	11 weeks

Collaborators and Investigators

• Sponsor: Lipscomb University

Study record dates

Study Major Dates

• Study Start (ACTUAL): August 23, 2019
• Primary Completion (ACTUAL): November 29, 2019
• Study Completion (ACTUAL): November 29, 2019

Study Registration Dates

• First Submitted: January 16, 2020
• First Submitted That Met QC Criteria: February 21, 2020
• First Posted (ACTUAL): February 24, 2020

Study Record Updates

• Last Update Posted (ACTUAL): February 24, 2020
• Last Update Submitted That Met QC Criteria: February 21, 2020
• Last Verified: February 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: 050719

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No