Related Experiment Video
Updated: Jul 3, 2026

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
Age effects on growth hormone and testosterone responses to endurance exercise in patients with neuromuscular
H J Stuerenburg1, R Jung, K Kunze
1Department of Neurology, University Hospital Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
Abstract:
We have investigated the effect of age on the changes in growth hormone (GH) and testosterone induced by muscular exercise in patients with neuromuscular diseases, by means of a test procedure which maintained compatibility. We investigated 21 control subjects and 36 patients. We found a significant increase in GH concentrations (+329%; p<0.0001) after 20 min of exercise on a bicycle ergometer. Testosterone concentrations showed no significant change. There was a significant negative correlation between the GH level after exercise and the age of the patients (R=-0.3, p=0.015). The influence of increasing age on the GH reaction in patients with neuromuscular disease is substantial and could have a significant influence on muscle mass, muscle strength and the time at which decompensation occurs in elderly patients with neuromuscular diseases.
More Related Videos
07:26Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
09:18Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy
Published on: January 12, 2019
Related Concept Videos
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Signs of Puberty
Pharmacodynamics in Geriatric Patients: Effects of Age
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...