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Effects of combined lower body endurance and upper body resistance training on the satellite cell pool in elderly subjects
Author(s) -
Verney Julien,
Kadi Fawzi,
Charifi Nadia,
Féasson Léonard,
Saafi Mohamed Ali,
Castells Josiane,
PiehlAulin Karin,
Denis Christian
Publication year - 2008
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.21054
Subject(s) - resistance training , upper body , endurance training , lower body , satellite , physical medicine and rehabilitation , medicine , vastus lateralis muscle , muscle hypertrophy , physical therapy , skeletal muscle , physical strength , engineering , aerospace engineering
To distinguish the respective potential of endurance and resistance training to increase the satellite cell pool, we investigated the effects of 14 weeks of concurrent lower body endurance and upper body resistance training (3 sessions/week) on vastus lateralis ( VLat ) and deltoid ( Del ) muscles of 10 active elderly men. NCAM+ satellite cells and myonuclear number were assessed in VLat and Del . After 14 weeks of training the NCAM+ satellite cell pool increased similarly (+38%) in both muscles, mainly in type II muscle fibers ( P < 0.05). There was no significant change in myonuclear number or myonuclear domain in either muscle. Combining resistance training in the upper limbs with endurance training in the lower limbs is an efficient strategy to enhance the satellite cell pool in upper and lower body muscles in elderly subjects. Our results provide a practical reference for the determination of optimal exercise protocols to improve muscle function and regeneration in the elderly. Muscle Nerve, 2008