Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women

M. Elaine Cress, D. Paul Thomas, Jill Johnson, Fred W. Kasch, Robert G. Cassens, Everett L. Smith, James C. Agre

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

The purpose of this study was to determine the effects of a long-term (50 wk) combined aerobic-resistance training program on maximal oxygen consumption (VO2max, thigh strength, and vastus lateralis fiber morphology in healthy septuagenarian women (X age = 72 ± 6 yr). Subjects volunteered to be in either an exercise (Ex; N = 17) or control (Con; N = 10) group. Con subjects were 34% less active in winter than in summer; Ex subjects maintained their summer activity level on exercise days in winter. Initial, intermediate (20 wk), and final (50 wk) measurements were made for isokinetic knee extension/ flexion strength; VO2max and morphological measurements from a muscle biopsy were made at the initial and final times only. Both groups gained in leg strength (Ex = +6.5%; Con = +7.8%; P < 0.05) during the summer; in the winter the Ex group maintained leg strength and the Con group declined 12.2% (P ≥ 0.05). The fasttwitch muscle fiber area (Type IIb) increased 29% (P ≥ 0.001) in the Ex group and declined 26% (P = 0.014) in the Con group. VO2max increased only in the Ex group (16%; P < 0.001). We conclude that healthy septuagenarian women can increase aerobic capacity, leg strength, and Type IIb muscle fiber area with a long-duration, combined aerobic-resistance exercise program.

Original languageEnglish (US)
Pages (from-to)752-758
Number of pages7
JournalMedicine and science in sports and exercise
Volume23
Issue number6
StatePublished - Jan 1 1991

Fingerprint

Muscle Strength
Thigh
Leg
Exercise
Muscles
Resistance Training
Quadriceps Muscle
Oxygen Consumption
Knee
Biopsy
Education

Keywords

  • Aerobic exercise
  • Aged
  • Female
  • Skeletal muscle

Cite this

Cress, M. E., Thomas, D. P., Johnson, J., Kasch, F. W., Cassens, R. G., Smith, E. L., & Agre, J. C. (1991). Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women. Medicine and science in sports and exercise, 23(6), 752-758.

Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women. / Cress, M. Elaine; Thomas, D. Paul; Johnson, Jill; Kasch, Fred W.; Cassens, Robert G.; Smith, Everett L.; Agre, James C.

In: Medicine and science in sports and exercise, Vol. 23, No. 6, 01.01.1991, p. 752-758.

Research output: Contribution to journalArticle

Cress, ME, Thomas, DP, Johnson, J, Kasch, FW, Cassens, RG, Smith, EL & Agre, JC 1991, 'Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women', Medicine and science in sports and exercise, vol. 23, no. 6, pp. 752-758.
Cress ME, Thomas DP, Johnson J, Kasch FW, Cassens RG, Smith EL et al. Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women. Medicine and science in sports and exercise. 1991 Jan 1;23(6):752-758.
Cress, M. Elaine ; Thomas, D. Paul ; Johnson, Jill ; Kasch, Fred W. ; Cassens, Robert G. ; Smith, Everett L. ; Agre, James C. / Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women. In: Medicine and science in sports and exercise. 1991 ; Vol. 23, No. 6. pp. 752-758.
@article{44691457f6d84c208a73471156ce675d,
title = "Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women",
abstract = "The purpose of this study was to determine the effects of a long-term (50 wk) combined aerobic-resistance training program on maximal oxygen consumption (VO2max, thigh strength, and vastus lateralis fiber morphology in healthy septuagenarian women (X age = 72 ± 6 yr). Subjects volunteered to be in either an exercise (Ex; N = 17) or control (Con; N = 10) group. Con subjects were 34{\%} less active in winter than in summer; Ex subjects maintained their summer activity level on exercise days in winter. Initial, intermediate (20 wk), and final (50 wk) measurements were made for isokinetic knee extension/ flexion strength; VO2max and morphological measurements from a muscle biopsy were made at the initial and final times only. Both groups gained in leg strength (Ex = +6.5{\%}; Con = +7.8{\%}; P < 0.05) during the summer; in the winter the Ex group maintained leg strength and the Con group declined 12.2{\%} (P ≥ 0.05). The fasttwitch muscle fiber area (Type IIb) increased 29{\%} (P ≥ 0.001) in the Ex group and declined 26{\%} (P = 0.014) in the Con group. VO2max increased only in the Ex group (16{\%}; P < 0.001). We conclude that healthy septuagenarian women can increase aerobic capacity, leg strength, and Type IIb muscle fiber area with a long-duration, combined aerobic-resistance exercise program.",
keywords = "Aerobic exercise, Aged, Female, Skeletal muscle",
author = "Cress, {M. Elaine} and Thomas, {D. Paul} and Jill Johnson and Kasch, {Fred W.} and Cassens, {Robert G.} and Smith, {Everett L.} and Agre, {James C.}",
year = "1991",
month = "1",
day = "1",
language = "English (US)",
volume = "23",
pages = "752--758",
journal = "Medicine and Science in Sports and Exercise",
issn = "0195-9131",
publisher = "Lippincott Williams and Wilkins",
number = "6",

}

TY - JOUR

T1 - Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women

AU - Cress, M. Elaine

AU - Thomas, D. Paul

AU - Johnson, Jill

AU - Kasch, Fred W.

AU - Cassens, Robert G.

AU - Smith, Everett L.

AU - Agre, James C.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The purpose of this study was to determine the effects of a long-term (50 wk) combined aerobic-resistance training program on maximal oxygen consumption (VO2max, thigh strength, and vastus lateralis fiber morphology in healthy septuagenarian women (X age = 72 ± 6 yr). Subjects volunteered to be in either an exercise (Ex; N = 17) or control (Con; N = 10) group. Con subjects were 34% less active in winter than in summer; Ex subjects maintained their summer activity level on exercise days in winter. Initial, intermediate (20 wk), and final (50 wk) measurements were made for isokinetic knee extension/ flexion strength; VO2max and morphological measurements from a muscle biopsy were made at the initial and final times only. Both groups gained in leg strength (Ex = +6.5%; Con = +7.8%; P < 0.05) during the summer; in the winter the Ex group maintained leg strength and the Con group declined 12.2% (P ≥ 0.05). The fasttwitch muscle fiber area (Type IIb) increased 29% (P ≥ 0.001) in the Ex group and declined 26% (P = 0.014) in the Con group. VO2max increased only in the Ex group (16%; P < 0.001). We conclude that healthy septuagenarian women can increase aerobic capacity, leg strength, and Type IIb muscle fiber area with a long-duration, combined aerobic-resistance exercise program.

AB - The purpose of this study was to determine the effects of a long-term (50 wk) combined aerobic-resistance training program on maximal oxygen consumption (VO2max, thigh strength, and vastus lateralis fiber morphology in healthy septuagenarian women (X age = 72 ± 6 yr). Subjects volunteered to be in either an exercise (Ex; N = 17) or control (Con; N = 10) group. Con subjects were 34% less active in winter than in summer; Ex subjects maintained their summer activity level on exercise days in winter. Initial, intermediate (20 wk), and final (50 wk) measurements were made for isokinetic knee extension/ flexion strength; VO2max and morphological measurements from a muscle biopsy were made at the initial and final times only. Both groups gained in leg strength (Ex = +6.5%; Con = +7.8%; P < 0.05) during the summer; in the winter the Ex group maintained leg strength and the Con group declined 12.2% (P ≥ 0.05). The fasttwitch muscle fiber area (Type IIb) increased 29% (P ≥ 0.001) in the Ex group and declined 26% (P = 0.014) in the Con group. VO2max increased only in the Ex group (16%; P < 0.001). We conclude that healthy septuagenarian women can increase aerobic capacity, leg strength, and Type IIb muscle fiber area with a long-duration, combined aerobic-resistance exercise program.

KW - Aerobic exercise

KW - Aged

KW - Female

KW - Skeletal muscle

UR - http://www.scopus.com/inward/record.url?scp=0025922569&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025922569&partnerID=8YFLogxK

M3 - Article

C2 - 1886486

AN - SCOPUS:0025922569

VL - 23

SP - 752

EP - 758

JO - Medicine and Science in Sports and Exercise

JF - Medicine and Science in Sports and Exercise

SN - 0195-9131

IS - 6

ER -