title: Parathyroid hormone and physical exercise: a brief review.
abstract: Parathyroid hormone (PTH) is the major hormone regulating calcium metabolism and is involved in both catabolic and anabolic actions on bone. Intermittent PTH exposure can stimulate bone formation and bone mass when PTH has been injected. In contrast, continuous infusion of PTH stimulates bone resorption. PTH concentration may be affected by physical exercise and our review was designed to investigate this relationship. The variation in PTH concentration appears to be influenced by both exercise duration and intensity. There probably exists a stimulation threshold of exercise to alter PTH. PTH regulation is also influenced by the initial bone mineral content, age, gender, training state, and other hormonal and metabolic factors (catecholamines, lactic acid and calcium concentrations). Key PointsPhysical exercise can improve PTH secretion.PARATHYROID HORMONE HAS BOTH ANABOLIC AND CATABOLIC EFFECTS ON BONE: intermittent treatment of PTH is anabolic whereas continuous treatment is catabolic.
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Anissa
authors.initials: A
authors.lastname: Bouassida
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Imed
authors.initials: I
authors.lastname: Latiri
authors.affiliation: Laboratory of Physiology, ISSEP Ksar-Saîd , Tunis, Tunisia.
authors.forename: Semi
authors.initials: S
authors.lastname: Bouassida
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Dalenda
authors.initials: D
authors.lastname: Zalleg
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Monia
authors.initials: M
authors.lastname: Zaouali
authors.affiliation: Laboratory of Measurements Sciences and Functional Explorations, ISSEP Kef , Tunisie.
authors.forename: Youssef
authors.initials: Y
authors.lastname: Feki
authors.affiliation: Laboratory of Endocrinology, Biology Department, Faculty of Science , Tunis, Tunisia.
authors.forename: Najoua
authors.initials: N
authors.lastname: Gharbi
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Abdelkarim
authors.initials: A
authors.lastname: Zbidi
authors.affiliation: Laboratory of Cardio-Circulatory, Respiratory, Metabolic and Hormonal Adaptations to the Muscular Exercise , Faculty of Medicine Ibn El Jazzar, 4002 Sousse, Tunisia.
authors.forename: Zouhair
authors.initials: Z
authors.lastname: Tabka
keywords: Parathyroid hormone; calcium; catabolic/anabolic effects; physical exercise