東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults./
Author:	Johnson, Nathaniel Richard.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	196 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-11, Section: B.
Contained By:	Dissertations Abstracts International83-11B.
Subject:	Nutrition. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29161365
ISBN:	9798438757580

The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults.
Johnson, Nathaniel Richard.

The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 196 p.

Source: Dissertations Abstracts International, Volume: 83-11, Section: B.

Thesis (Ph.D.)--North Dakota State University, 2022.

This item must not be sold to any third party vendors.

Skeletal muscle is critically important, but is often overlooked, not getting the respect or attention the tissue demands. Muscle is responsible for locomotion and physical performance, uses large amount of energy preventing gains in fat mass, and acts as an amino acid reservoir during trauma. Nonetheless, as individuals age, they lose muscle and to a greater extent strength. Maintaining muscle mass and strength is paramount for preventing disability and mortality. There are many aspects of diet that affect muscle tissue, but dietary protein directly activates muscle protein synthesis, so is important to consider as part of a balanced diet. Research regarding dietary protein intake has focused on the amount of protein consumed, but the quality and distribution of dietary protein also determines the body's anabolic response. Two different cross-sectional studies were completed to determine the associations between dietary protein intake and muscular performance. Dietary intake was measured using three-day food diaries. Isokinetic dynamometry determined lower-body strength and endurance. Handgrip strength measured upper-body strength. Dual x-ray absorptiometry evaluated lean body mass. Thirty-second chair stand and six-meter gait speed tests determined functional ability. Self-reported age and moderate-to-vigorous physical activty, assessed via accelerometry, were included in all models as covariates. Increased intake of higher quality proteins from animal sources was positively associated with lower-body strength (β ± S.E.; 65.874±19.855, p =0.001), lower-body endurance (549.944±232.478, p =0.020), and handgrip strength (0.349±0.171, p = 0.045) in the cross-sectional sample of 91 middle-aged men (n=41) and women (n=50) when controlling for relative energy intake and percent energy from the macronutrients. Using another sample of 192 women 18 to 79 years, achieving intakes of at 25 grams per meal was positively associated with lean mass (1.067±0.273 kg, p<0.001) and upper-body (3.274±0.737 kg, p<0.001) and lower-body strength (22.858±7.918 Nm, p=0.004) controlling for relative energy intake and percent of energy from protein. In a subgroup of this sample aged 61-79, animal-based protein intake was related to increased lower-body strength (14.834±7.287 Nm, p=0.049) and faster gait speed (-0.177±0.087 s, p=0.049). To benefit muscle and performance, people should strive to consume enough high-quality protein at each meal.

ISBN: 9798438757580Subjects--Topical Terms:

517777
Nutrition.
Subjects--Index Terms:

Muscular strength

The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults.
LDR:03617nmm a2200361 4500 001 2350904
005 20221028161046.5
008 241004s2022 ||||||||||||||||| ||eng d
020 $a 9798438757580
035 $a (MiAaPQ)AAI29161365
035 $a AAI29161365
040 $a MiAaPQ $c MiAaPQ
100 1 $a Johnson, Nathaniel Richard. $0 (orcid)0000-0002-1577-3167 $3 3690434
245 1 4 $a The Effects of Greater Dietary Protein Spread and Quality on Muscle Health in Healthy Adults.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 196 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-11, Section: B.
500 $a Advisor: Stastny, Sherri.
502 $a Thesis (Ph.D.)--North Dakota State University, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Skeletal muscle is critically important, but is often overlooked, not getting the respect or attention the tissue demands. Muscle is responsible for locomotion and physical performance, uses large amount of energy preventing gains in fat mass, and acts as an amino acid reservoir during trauma. Nonetheless, as individuals age, they lose muscle and to a greater extent strength. Maintaining muscle mass and strength is paramount for preventing disability and mortality. There are many aspects of diet that affect muscle tissue, but dietary protein directly activates muscle protein synthesis, so is important to consider as part of a balanced diet. Research regarding dietary protein intake has focused on the amount of protein consumed, but the quality and distribution of dietary protein also determines the body's anabolic response. Two different cross-sectional studies were completed to determine the associations between dietary protein intake and muscular performance. Dietary intake was measured using three-day food diaries. Isokinetic dynamometry determined lower-body strength and endurance. Handgrip strength measured upper-body strength. Dual x-ray absorptiometry evaluated lean body mass. Thirty-second chair stand and six-meter gait speed tests determined functional ability. Self-reported age and moderate-to-vigorous physical activty, assessed via accelerometry, were included in all models as covariates. Increased intake of higher quality proteins from animal sources was positively associated with lower-body strength (β ± S.E.; 65.874±19.855, p =0.001), lower-body endurance (549.944±232.478, p =0.020), and handgrip strength (0.349±0.171, p = 0.045) in the cross-sectional sample of 91 middle-aged men (n=41) and women (n=50) when controlling for relative energy intake and percent energy from the macronutrients. Using another sample of 192 women 18 to 79 years, achieving intakes of at 25 grams per meal was positively associated with lean mass (1.067±0.273 kg, p<0.001) and upper-body (3.274±0.737 kg, p<0.001) and lower-body strength (22.858±7.918 Nm, p=0.004) controlling for relative energy intake and percent of energy from protein. In a subgroup of this sample aged 61-79, animal-based protein intake was related to increased lower-body strength (14.834±7.287 Nm, p=0.049) and faster gait speed (-0.177±0.087 s, p=0.049). To benefit muscle and performance, people should strive to consume enough high-quality protein at each meal.
590 $a School code: 0157.
650 4 $a Nutrition. $3 517777
650 4 $a Health sciences. $3 3168359
650 4 $a Public health. $3 534748
650 4 $a Histology. $3 641250
653 $a Muscular strength
653 $a Protein distribution
653 $a Protein intake
690 $a 0570
690 $a 0566
690 $a 0573
690 $a 0414
710 2 $a North Dakota State University. $b Health, Nutrition, and Exercise Sciences. $3 2097334
773 0 $t Dissertations Abstracts International $g 83-11B.
790 $a 0157
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29161365